Harrow Lane Facility Services, Inc. Fictional company and figures.Prepared for Stack Growth Solutions

August 2026 close review

Fictional service business. Accrual basis. Recorded AI proposals. No live QuickBooks connection.

Lead scheduleBalance, August 31Where it standsSheet
Cash, three bank accounts1,436,300.61Agreed to the statement. Opening equals the prior statement's closing; closing equals the running balance after the last line.Four columns agree for June, July and AugustB-1
Accounts receivable1,092,529.05GL254 open invoices and one unapplied paymentC-1
Accounts payable(183,948.29)GL46 open bills and one vendor creditC-1
Business card, a liability(23,304.69)Agreed to the statement. Opening equals the prior statement's closing; closing equals the running balance after the last line.Agreed to the card statement; not counted as cashB-1
Accrued liabilities0.0018,650.00 of August service invoiced September 3: not accrued, decision openA-1
Net income, August119,589.67Before that decision; 100,939.67 with the accrualA-1

Cash reconciled. One expense cut-off decision outstanding.

One customer payment awaits its remittance; the receivables total is unaffected. N-4
Fictional timeline, September 1 to 24. The model's proposals were recorded on September 25 and replayed into it; each scripted decision names the replayed version it covers.

Prepared
Books v3, circuit replayed September 25, 2026
Reviewed
Open

August crane service, invoiced in September

The bank balances for August. The cost of this service is not in August yet: the accountant decides.

A-1
InvoiceKeel Crane & Rigging, LLC
4410 Harbor Industrial Rd
Bill to
Harrow Lane Facility Services, Inc.
Number
KCR-3391
Date
Sep 3, 2026
Service date
Aug 26, 2026
Due
Oct 3, 2026
Terms
Net 30
Job
Northfield Logistics Park, rooftop unit RTU-4 set, WO-22221
Crane service, 90-ton hydraulic, 8 hours at $1,450.00 (Aug 26, 2026)11,600.00
Mobilization and demobilization2,850.00
Rigging crew, 4 x 8 hours at $131.254,200.00
Total18,650.00
Received Sep 8, 2026, AP inbox
Service in August, invoice in September, nothing booked in August.
Work order WO-22221, the job record
Work orderNorthfield Logistics Park
Work order
WO-22221
Date
Aug 26, 2026
Site
Building B roof
Work
Remove and set rooftop unit RTU-4. Crane lift by Keel Crane & Rigging, 8 hours on site, completed Aug 26, 2026.
Received Aug 26, 2026

Proposed entry, August 31, 2026

Reverses September 1, 2026, when the bill is entered. Not posted.
AccountDebitCredit
5100 Subcontractors18,650.00
2200 Accrued liabilities18,650.00
  • TService performed August 26, on the invoice and on work order WO-22221.
  • TInvoice dated September 3, received September 8. Nothing is booked in August for it: no bill, no accrual.
  • GLThe job's revenue is already in August: INV-24684 of August 28 (64,800.00) names the work order and has a line “Crane service and rigging, August 26, 2026” of 21,450.00.
August 2026As booked, v3With the accrual
Revenue854,338.47854,338.47
Cost of services503,748.54522,398.54
Gross profit350,589.93331,939.93
Net income119,589.67100,939.67
Accrued liabilities, August 310.0018,650.00
Reconciled cash, August 311,436,300.611,436,300.61

What settles it. The engagement accountant approves the entry as proposed, or leaves the cost in September with a written reason. Until then, cash stays reconciled and August's result is not approved.

An approval covers version v-01efffd875c6ae only. A change to the amount, the account, the date or the documents makes a new version, and the approval no longer applies. Protected by tests/cutoff.test.ts.

The search behind it

Of the 9 documents received September 1 to 24, the 4 for service that ended in August and not booked in August, as the model read them. Accrual threshold in the illustrative policy: 5,000.00.

VendorDocumentService endedDatedAmountOutcome
Keel Crane & Rigging, LLCKCR-3391August 26September 318,650.00Accrual proposed, A-1
Tri-County Electric Co-op18-091784August 31September 102,184.20Below the threshold: recorded when billed, in September
Lakeside Gas Company19-092231August 31September 11398.10Below the threshold: recorded when billed, in September
Millcreek Water & Sewer District20-093308August 31September 8356.40Below the threshold: recorded when billed, in September

Proof of cash, by bank account

The bank statement against the general ledger, with the items in transit at both dates, June to August. Each underlined figure opens the lines it is made of.

B-1
Operating x4471, August 2026Ledger: books v3Balance, Jul 31ReceiptsDisbursementsBalance, Aug 31
Per bank statement CF807,464.55Agreed to the statement. Opening equals the prior statement's closing; closing equals the running balance after the last line.FF966,148.91Agreed to the statement. Opening equals the prior statement's closing; closing equals the running balance after the last line.
Deposits in transit, Jul 31S
Deposits in transit, Aug 31S
Outstanding checks, Jul 31S
Outstanding checks, Aug 31S
Adjusted bank CF943,353.18702,796.19697,821.90948,327.47
Per general ledger, 1010 CF943,353.18GL948,327.47GL
Difference0.000.000.000.00

Balance, Jul 31

Per bank statement807,464.55Agreed to the statement. Opening equals the prior statement's closing; closing equals the running balance after the last line.
Deposits in transit, Jul 31S
Outstanding checks, Jul 31S
Adjusted bank943,353.18
Per general ledger, 1010943,353.18GL
Difference0.00

Receipts

Per bank statementF
Deposits in transit, Jul 31
Deposits in transit, Aug 31
Adjusted bank702,796.19
Per general ledger, 1010
Difference0.00

Disbursements

Per bank statementF
Outstanding checks, Jul 31
Outstanding checks, Aug 31
Adjusted bank697,821.90
Per general ledger, 1010
Difference0.00

Balance, Aug 31

Per bank statement966,148.91Agreed to the statement. Opening equals the prior statement's closing; closing equals the running balance after the last line.
Deposits in transit, Aug 31S
Outstanding checks, Aug 31S
Adjusted bank948,327.47
Per general ledger, 1010948,327.47GL
Difference0.00
The four columns agree: difference 0.00 in each.172 statement lines, 172 ledger lines. Negatives in parentheses.
  • Agreed to the statement. Opening equals the prior statement's closing; closing equals the running balance after the last line.Agreed to the statement. Opening equals the prior statement's closing; closing equals the running balance after the last line.
  • FFooted. The column recomputed from the statement's lines equals the statement's own total.
  • CFCross-footed. Opening plus receipts minus disbursements equals closing, on the row.
  • SCleared later. Every item appears on the next statement, or in the September activity to Sep 24, with its date.
  • GLAgreed to the ledger. Equals the account's balance in the trial balance of books v3.

The business card x7715 is a liability, not cash. Its August statement shows 23,304.69 owed; account 2100 shows 23,304.69. The July statement was paid from operating on August 25, 20,120.45: a lower liability, not an expense.

Statement and ledger agree in June, July and August.

Computed here from the statements and the books. It is not a reconciliation run in QuickBooks, where reconciling is its own step with the statement's ending balance and date, and QuickBooks keeps a report when it is finished (Intuit).

Receivables and payables, August 31

Every open document, summed, against the control account in the general ledger.

C-1

Receivables

Open invoices, 2541,102,529.05
Unapplied payment, Crestview Senior Living (N-4)(10,000.00)
Account 1200, accounts receivable1,092,529.05GL
Not yet due799,818.11
Past due 1 to 30 days273,862.50
Past due 31 to 60 days27,781.61
Past due 61 to 90 days1,066.83
Past due over 90 days0.00
By customer, 60 with open invoices
Frost Valley Ice Arena (12)79,166.0042,334.00 past due
Northfield Logistics Park (1)64,800.00
Redfern Logistics (3)61,059.45
Hollins Warehouse Partners (6)56,679.8740,641.76 past due
Summerfield Grocers (8)52,816.081,099.16 past due
Bramble Hill Winery (6)45,850.9811,891.00 past due
Silverline Credit Union (11)43,056.1822,670.26 past due
Castleton Plastics (6)38,433.94361.01 past due
Copperfield Retail Commons (5)36,957.0010,664.00 past due
Bellmont Medical Offices (3)36,816.8223,134.00 past due
Fairhaven Assisted Living (8)34,156.9925,743.00 past due
Meadowlark Credit Union (8)32,258.9414,270.78 past due
Ironwood Manufacturing (10)29,342.1614,873.09 past due
Eastgate Veterinary Hospital (2)29,116.00
Riverbend Charter Academy (4)27,444.6320,434.63 past due
Brookline Commerce Center (5)24,668.39684.00 past due
Marlowe Data Center (5)24,018.861,718.86 past due
Crestview Senior Living (3)22,300.0012,500.00 past due
Thornbury Hotel (7)21,553.401,908.06 past due
Whitmore Law Building (3)20,925.9516,897.00 past due
Quarry Hill Offices (3)18,210.57969.57 past due
Hawthorne Middle School (6)17,878.33392.24 past due
Derby Street Lofts (5)16,261.61
Dunmore Cold Storage (5)15,825.972,159.60 past due
Tanglewood Office Park (3)14,659.11
Canterbury Court Condominiums (6)14,212.16
Saddlebrook Apartments (5)14,177.838,311.83 past due
Harborview Hotel & Suites (2)13,393.00593.00 past due
Ashford County Facilities (5)12,388.01898.89 past due
Juniper Plaza (4)12,230.90745.64 past due
Northgate Auto Group (2)11,399.19
Lakemont Dialysis Center (3)11,099.10848.10 past due
Stonegate Medical Plaza (4)9,702.57493.51 past due
Pembrook Retail Group (2)9,585.00
Calloway Business Park (5)9,290.47484.00 past due
Highpoint Fitness (6)8,781.375,584.91 past due
Willowbrook Nursing Center (3)8,193.93813.93 past due
Linden Court Townhomes (6)7,971.881,938.86 past due
Glenmore Athletic Club (2)7,756.22
Rosewood Event Center (5)7,681.442,372.00 past due
Cedar Hollow Office Plaza (5)7,637.32679.00 past due
Vista Cinema 12 (5)7,556.902,665.90 past due
Norcross Printing (6)6,633.383,194.52 past due
Kingsley Pharmacy Group (4)5,918.50648.00 past due
Foxglove Business Suites (3)5,726.00383.00 past due
Clearbrook Community Church (6)5,343.97473.68 past due
Granite Row Lofts (3)5,340.00
Alder Creek Apartments (2)5,303.00
Hampton Mill Offices (1)4,410.00
Oakridge Commons (1)4,120.00
Elmhurst Public Library (2)4,053.00
Westbrook Property Group (2)3,000.003,000.00 past due
Lorimer Brewing Company (2)2,928.99
Gatewood Hospital (2)2,534.152,534.15 past due
Emberly Bakery Co. (3)2,524.78
Greystone Surgical Center (1)2,200.00
Mapleton Storage (3)2,179.39
Parkside Pediatric Clinic (3)1,225.58
Birchwood Senior Residences (1)1,071.79
Kestrel Aviation Hangars (1)702.00702.00 past due

Payables

Open bills, 46184,561.09
Vendor credit HCM-2291, Hollis HVAC Parts (N-7)(612.80)
Account 2000, accounts payable183,948.29GL
Bills due by September 1567,775.83
Bills due later116,785.26

MRS-58812 is carried once, at 4,386.15 (N-5); 7713 at 1,845.00, its 235.00 core credit dated September 2 (N-5b). Keel's September invoice is not a payable at August 31: see A-1.

By vendor, 15 with open documents
Delmar Electrical Contractors (3)48,412.34
Metro Refrig Supply Co. (8)21,942.89
BlueRidge Sheet Metal (2)20,689.58
Ironline Roofing (1)14,103.61
Vantage Controls Integration (1)13,458.46
Tristate Industrial Supply (6)13,188.00
Kessler Electric Supply (6)11,766.98
Hollis HVAC Parts (7)11,102.85
Allied Fleet Services (5)10,134.17
Summit Lift Rentals (2)6,237.14
ProFilter Direct (2)4,803.52
Morrow Legal Group (1)3,528.41
Sorensen Insulation (1)3,047.68
Ridgeway Plumbing Supply (1)827.21
Brightline Uniform & Linen (1)705.45

Cases

Two paths, counted apart. New documents are proposed, checked, decided, then posted. Entries already in the June and July books are corrected with an approval and a trace.

D-1
New documents, August close
August bank lines
181
Paired with a recorded transaction (match)
58
Customer payments applied by their own references
95
Checks applied from 19 deposit slips
49
Card lines posted on the model's proposal, account used before
72 of 73
Documents received in September for August
9
Model proposals recorded, in 20 calls
88
Held or stopped, then decided
4
Refused, all seeded for the tests
5
Information requested
1
Decision outstanding
1
Backlog, June and July
Entries reviewed
1,025
Movement between owned accounts coded to profit and loss
1
Refund to a customer with an open credit, coded to revenue
1
Same vendor and bill number entered twice
0
Payment applied to another customer's invoice
0
June and July bank lines without a book entry
0
Corrections approved
2
Posted before July was closed, September 18
2

Held for a person

N-1Keel Crane & Rigging, LLC KCR-3391: August service, September invoiceDecision outstanding

Documents

  • Invoice KCR-3391, Keel Crane & Rigging
    InvoiceKeel Crane & Rigging, LLC
    4410 Harbor Industrial Rd
    Bill to
    Harrow Lane Facility Services, Inc.
    Number
    KCR-3391
    Date
    Sep 3, 2026
    Service date
    Aug 26, 2026
    Due
    Oct 3, 2026
    Terms
    Net 30
    Job
    Northfield Logistics Park, rooftop unit RTU-4 set, WO-22221
    Crane service, 90-ton hydraulic, 8 hours at $1,450.00 (Aug 26, 2026)11,600.00
    Mobilization and demobilization2,850.00
    Rigging crew, 4 x 8 hours at $131.254,200.00
    Total18,650.00
    Received Sep 8, 2026, AP inbox
  • Work order WO-22221, Northfield Logistics Park
    Work orderNorthfield Logistics Park
    Work order
    WO-22221
    Date
    Aug 26, 2026
    Site
    Building B roof
    Work
    Remove and set rooftop unit RTU-4. Crane lift by Keel Crane & Rigging, 8 hours on site, completed Aug 26, 2026.
    Received Aug 26, 2026

Books entries: B-01318

Checks

  • Service date2026-08-26, in August (read from the invoice)Holds
  • Document date2026-09-03, after the period endHolds
  • Booked in August for this documentNothing: no bill, no accrualHolds
  • Revenue for the jobINV-24684 of Aug 28 (64,800.00), naming WO-22221, has a line "Crane service and rigging, August 26, 2026" of 21,450.00Holds
  • Accrual threshold18,650.00 at or above 5,000.00 (illustrative policy)Holds

Review policy: Any accrual or cut-off entry.

Proposals

Proposed accrual. Accrue 18,650.00 at 2026-08-31: service performed 2026-08-26, invoice dated 2026-09-03.

Built by the circuit: Accrual at period end, from the service date and amount the model read on the invoice. From the model's reading read-keel-kcr3391, recorded Sep 25, 1:19 PM UTC.

Dated 2026-08-31. Version v-01efffd875c6ae.
AccountDebitCredit
5100 Subcontractors18,650.00
2200 Accrued liabilities18,650.00
The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Company: Harrow Lane Facility Services, Inc. (fictional), commercial HVAC, electrical and preventive maintenance services, an S corporation owned by Dana Harrow.

Read this vendor document received in the AP inbox and propose how to record it. Dates as YYYY-MM-DD. Choose the account from this chart only:
4000 Maintenance contract revenue
4100 Project and repair revenue
5000 Direct labor
5100 Subcontractors
5200 Materials and parts
5300 Equipment rental
6000 Office and management salaries
6050 Payroll taxes
6060 Employee benefits
6100 Rent
6150 Utilities and telecom
6200 Insurance
6250 Vehicle fuel and maintenance
6300 Software and subscriptions
6350 Professional fees
6400 Travel and meals
6450 Office supplies
6460 Uniforms and linen
6500 Bank and service fees
6550 Waste removal
6600 Depreciation
6900 Miscellaneous expense
7000 Interest income

Document text:
Invoice KCR-3391, Keel Crane & Rigging
Vendor printed: Keel Crane & Rigging, LLC
Remit to: 4410 Harbor Industrial Rd
Number: KCR-3391
Date: 2026-09-03
Due: 2026-10-03
Terms: Net 30
Bill to: Harrow Lane Facility Services, Inc.
Job: Northfield Logistics Park, rooftop unit RTU-4 set, WO-22221
Service date: 2026-08-26
  Crane service, 90-ton hydraulic, 8 hours at $1,450.00 (Aug 26, 2026)  11,600.00
  Mobilization and demobilization  2,850.00
  Rigging crew, 4 x 8 hours at $131.25  4,200.00
Total: 18,650.00
{"vendor":"Keel Crane & Rigging, LLC","document_number":"KCR-3391","document_date":"2026-09-03","service_start":"2026-08-26","service_end":"2026-08-26","total":"18650.00","relation":"new_invoice","related_number":null,"proposed_account":"5100 Subcontractors","insufficient_information":false,"reason":"This is a one-time invoice from a crane/rigging outfit (Keel Crane & Rigging, LLC) for a single service date (2026-08-26) tied to a specific job: Northfield Logistics Park, RTU-4 set, WO-22221. Line items (crane operation, mobilization/demobilization, and a rigging crew) total $11,600.00 + $2,850.00 + $4,200.00 = $18,650.00, which matches the invoice total and the extended math checks out (8 hrs x $1,450.00 = $11,600.00; 4 workers x 8 hrs x $131.25 = $4,200.00). Because the vendor is supplying operated equipment plus a labor crew for a discrete project task rather than bare equipment for Harrow Lane's own crew to operate, this is best coded to 5100 Subcontractors (direct job cost against the RTU-4 project, offsetting 4100 Project and repair revenue) rather than 5300 Equipment rental. No prior invoice, credit memo, or duplicate indicators were found in the document; the invoice number KCR-3391 has not been seen before in this conversation, so it is treated as a new, standalone invoice. Recommend tagging the entry to job/WO-22221 for job costing and verifying against any signed work order or PO before posting."}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

Accrue 18,650.00 in August as proposed, or leave it in September with a written reason. Until then August's result is not approved; cash stays reconciled.

  1. Found by the cut-off search. Proposed, not posted: an accrual is the accountant's decision.

The decision sheet

N-4Crestview Senior Living, 10,000.00 without remittance (1 refused)Information requested

Documents

  • Remittance request sent to Crestview Senior Living
    Emailar@harrowlane.example
    From
    ar@harrowlane.example
    To
    ap@crestviewsl.example
    Date
    Aug 28, 2026
    Subject
    Your ACH of 8/27, $10,000.00

    Hello, Thank you for your ACH payment of $10,000.00 received on August 27. It came without a remittance. Your open invoices are INV-24402 ($7,300.00), INV-24454 ($5,200.00) and INV-24573 ($9,800.00). Could you tell us which invoices it pays? Harrow Lane Facility Services, Accounts Receivable

    Received Aug 28, 2026

Bank line: 1010-2026-08-143

Checks

  • Model's answerInformation insufficient: no remittance, no combination of open invoices equals the paymentHolds

Review policy: The model answered that the information is insufficient.

Proposals

Unapplied, remittance requested. Record 10,000.00 as unapplied on Crestview Senior Living's account and ask which invoices it pays.

Built by the circuit: Policy: record unapplied, request the remittance.

Dated 2026-08-27. Version v-1835d7972e346a.
AccountDebitCredit
1010 Operating checking, Prairie Commerce Bank x447110,000.00
1200 Accounts receivable 10,000.00

Decision and posting

Crestview Senior Living's answer to the request of Aug 28, or the accountant applies it. Receivables total is right; which invoices are past due is not settled.

Posted as C-0110, dated 2026-08-27. Written as C-0110.
AccountDebitCredit
1010 Operating checking, Prairie Commerce Bank x447110,000.00
1200 Accounts receivable 10,000.00

Refused. A payment advice says how to apply it: No payment advice on file; the review policy says to request one

Seeded for the test. The model answered that the information is insufficient and named oldest-first as a guess. This oldest-first allocation was written for the test.

  1. Attempt 1: Written as C-0110.
N-5MRS-58812 from Metro Refrigerant Supply, received Sep 14Held, then decided

Documents

  • Invoice MRS-58812, Metro Refrigerant Supply
    InvoiceMetro Refrigerant Supply
    2150 Industrial Pkwy, Unit 4
    Number
    MRS-58812
    Date
    Aug 6, 2026
    Due
    Sep 5, 2026
    Terms
    Net 30
    R-410A refrigerant, 25 lb cylinders (6); recovery tank4,212.40
    Freight173.75
    Total4,386.15
    Received Sep 14, 2026, AP inbox
  • Invoice MRS-58812 as entered on Aug 7
    InvoiceMetro Refrig Supply Co.
    2150 Industrial Pkwy, Unit 4
    Number
    MRS-58812
    Date
    Aug 6, 2026
    Due
    Sep 5, 2026
    Terms
    Net 30
    R-410A refrigerant, 25 lb cylinders (6); recovery tank4,212.40
    Total4,212.40
    Received Aug 7, 2026, Mail
  • Statement of account, Metro Refrigerant Supply
    Statement of accountMetro Refrigerant Supply
    As of
    Aug 31, 2026
    MRS-58812, Aug 6, 20264,386.15
    MRS-58833, Aug 7, 2026970.85
    MRS-58839, Aug 7, 20264,019.37
    MRS-58847, Aug 10, 20264,050.36
    MRS-58885, Aug 12, 20262,575.40
    MRS-58914, Aug 13, 2026841.28
    MRS-58920, Aug 14, 20261,438.01
    MRS-58935, Aug 28, 20263,661.47
    Total21,942.89
    Received Sep 17, 2026

Books entries: B-01112

Checks

  • Vendor identityPrinted "Metro Refrigerant Supply" is record V08; linked records searched: V07, V08Holds
  • Same vendor identity and number already postedMRS-58812 posted 2026-08-06 as B-01112 under V07, 4,212.40; this document says 4,386.15Fails
  • Vendor statementStatement of 2026-08-31 lists MRS-58812 once, at 4,386.15Holds

Review policy: Two documents disagree: same vendor and number, different amount.

Proposals

From the model's reading: a new bill. New bill MRS-58812, 4,386.15, 5200 Materials and parts.

Built by the circuit: A bill from the document's fields and the model's proposed account. From the model's reading read-mrs58812-copy2, recorded Sep 25, 1:19 PM UTC.

Dated 2026-08-06. Version v-0e8d077ad4d7d5.
AccountDebitCredit
5200 Materials and parts4,386.15
2000 Accounts payable MRS-588124,386.15

Held. Hold. Both documents to the reviewer.

Built by the circuit: Duplicate key: vendor identity + number.

No entry. Version v-0122a91dfd13b1.

Revision, after the vendor statement. Adjust MRS-58812 by 173.75 to 4,386.15; do not post a second bill.

Built by the circuit: Adjustment of the posted bill to the amount on the vendor statement. From the model's reading read-metro-statement, recorded Sep 25, 1:19 PM UTC.

Dated 2026-08-06. Version v-12eba8972e3785.
AccountDebitCredit
5200 Materials and parts173.75
2000 Accounts payable MRS-58812173.75
The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Company: Harrow Lane Facility Services, Inc. (fictional), commercial HVAC, electrical and preventive maintenance services, an S corporation owned by Dana Harrow.

Read this vendor document received in the AP inbox and propose how to record it. Dates as YYYY-MM-DD. Choose the account from this chart only:
4000 Maintenance contract revenue
4100 Project and repair revenue
5000 Direct labor
5100 Subcontractors
5200 Materials and parts
5300 Equipment rental
6000 Office and management salaries
6050 Payroll taxes
6060 Employee benefits
6100 Rent
6150 Utilities and telecom
6200 Insurance
6250 Vehicle fuel and maintenance
6300 Software and subscriptions
6350 Professional fees
6400 Travel and meals
6450 Office supplies
6460 Uniforms and linen
6500 Bank and service fees
6550 Waste removal
6600 Depreciation
6900 Miscellaneous expense
7000 Interest income

Document text:
Invoice MRS-58812, Metro Refrigerant Supply
Vendor printed: Metro Refrigerant Supply
Remit to: 2150 Industrial Pkwy, Unit 4
Number: MRS-58812
Date: 2026-08-06
Due: 2026-09-05
Terms: Net 30
  R-410A refrigerant, 25 lb cylinders (6); recovery tank  4,212.40
  Freight  173.75
Total: 4,386.15
{"vendor":"Metro Refrigerant Supply","document_number":"MRS-58812","document_date":"2026-08-06","service_start":null,"service_end":null,"total":"4386.15","relation":"new_invoice","related_number":null,"proposed_account":"5200 Materials and parts","insufficient_information":false,"reason":"This is a goods purchase (R-410A refrigerant cylinders, a recovery tank, and freight), not a time-based service, so there is no service period to record - service_start/service_end are left blank. Nothing on the document references a prior invoice, shows negative/credit language, or otherwise suggests a revision, credit memo, or duplicate, so it reads as a new invoice payable Net 30. I'm proposing 5200 Materials and parts for the full $4,386.15, since refrigerant and its inbound freight are job materials consumed in HVAC service work. One caveat for the accountant: the recovery tank is priced together with the refrigerant in a single line, so its individual cost isn't broken out; if it is a durable tool above your capitalization threshold, you may want to split and capitalize it separately - the chart provided has no fixed-asset/tools account, so I defaulted the whole invoice to Materials and parts pending your judgment."}

Shown as recorded, long dashes printed as hyphens.

The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Read this vendor statement and list its lines. Amounts in dollars as plain numbers.

Statement of account, Metro Refrigerant Supply
Vendor printed: Metro Refrigerant Supply
Date: 2026-08-31
  MRS-58812  2026-08-06  4,386.15
  MRS-58833  2026-08-07  970.85
  MRS-58839  2026-08-07  4,019.37
  MRS-58847  2026-08-10  4,050.36
  MRS-58885  2026-08-12  2,575.40
  MRS-58914  2026-08-13  841.28
  MRS-58920  2026-08-14  1,438.01
  MRS-58935  2026-08-28  3,661.47
Total: 21,942.89
{"lines":[{"number":"MRS-58812","date":"2026-08-06","amount":"4386.15"},{"number":"MRS-58833","date":"2026-08-07","amount":"970.85"},{"number":"MRS-58839","date":"2026-08-07","amount":"4019.37"},{"number":"MRS-58847","date":"2026-08-10","amount":"4050.36"},{"number":"MRS-58885","date":"2026-08-12","amount":"2575.40"},{"number":"MRS-58914","date":"2026-08-13","amount":"841.28"},{"number":"MRS-58920","date":"2026-08-14","amount":"1438.01"},{"number":"MRS-58935","date":"2026-08-28","amount":"3661.47"}],"total":"21942.89","insufficient_information":false}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

Sep 18, 3:40 PM UTC, AP lead (scripted, fictional date), on the replayed v-12eba8972e3785: The vendor statement lists MRS-58812 once, at 4,386.15: a revision of the posted bill, freight added. Adjust that bill; post no second one.

Posted as C-0003, dated 2026-08-06. The write went through but its response was lost. The record already holds C-0003 under att-1e6ae4e858189c; nothing written.
AccountDebitCredit
5200 Materials and parts173.75
2000 Accounts payable MRS-58812173.75
  1. Held: suspected duplicate or revision of B-01112. Not posted.
  2. Vendor statement received: MRS-58812 at 4,386.15. Proposal: revision, not a second bill.
  3. Decision (AP lead): revision, v-12eba8972e3785.
  4. Attempt 1: The write went through but its response was lost.
  5. Attempt 2: The record already holds C-0003 under att-1e6ae4e858189c; nothing written.
N-6Arbor & Hearth Furniture on the company card, 2,318.50 (1 refused)Held, then decided

Documents

  • Receipt, Arbor & Hearth Furniture
    ReceiptArbor & Hearth Furniture
    Date
    Aug 14, 2026
    Deliver to
    14 Wrenfield Ct
    Walnut dining table, 84 in1,489.00
    Upholstered dining chair (6)702.00
    Delivery and assembly127.50
    Total2,318.50
    Received Aug 20, 2026
  • Email from Dana Harrow, owner
    Emaildana@harrowlane.example
    From
    dana@harrowlane.example
    To
    bookkeeping@harrowlane.example
    Date
    Aug 20, 2026
    Subject
    Arbor & Hearth charge

    The Arbor & Hearth charge on the company card (Aug 14, $2,318.50) is a personal purchase for my house. Please record it against me and I will pay the company back. Dana

    Received Aug 20, 2026

Card line: 2100-2026-08-034

Checks

  • Documents found for the lineReceipt, Arbor & Hearth Furniture; Email from Dana Harrow, ownerHolds
  • Merchant historyNo earlier charge from this merchantFails
  • Card liability kept2100 is credited 2,318.50 whatever the decisionHolds
  • Related partyDana Harrow's email and a delivery to 14 Wrenfield CtFails

Review policy: Transaction with the owner or a related party, whatever the amount; Proposed account differs from the account this merchant or vendor used before, or no history.

Proposals

Model's proposal. 1250 Due from shareholder

Proposed by the model: record card-2026-08-arbor, recorded Sep 25, 1:19 PM UTC, claude-sonnet-5.

Dated 2026-08-14. Version v-0c554f36f58502.
AccountDebitCredit
1250 Due from shareholder2,318.50
2100 Business card, Prairie Commerce Bank x77152,318.50
The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Company: Harrow Lane Facility Services, Inc. (fictional), commercial HVAC, electrical and preventive maintenance services, an S corporation owned by Dana Harrow.

Propose the account for this company card line. Choose from this chart of accounts only:
1250 Due from shareholder
1500 Vehicles and equipment
3200 Shareholder distributions
5000 Direct labor
5100 Subcontractors
5200 Materials and parts
5300 Equipment rental
6000 Office and management salaries
6050 Payroll taxes
6060 Employee benefits
6100 Rent
6150 Utilities and telecom
6200 Insurance
6250 Vehicle fuel and maintenance
6300 Software and subscriptions
6350 Professional fees
6400 Travel and meals
6450 Office supplies
6460 Uniforms and linen
6500 Bank and service fees
6550 Waste removal
6600 Depreciation
6900 Miscellaneous expense

Card line: {"id": "2100-2026-08-034", "date": "2026-08-14", "merchant": "ARBOR & HEARTH FURNITURE", "amount": "2,318.50"}

Documents found for this line:
Receipt, Arbor & Hearth Furniture
Date: 2026-08-14
Merchant: Arbor & Hearth Furniture
Deliver to: 14 Wrenfield Ct
Note: Delivery scheduled Aug 19
  Walnut dining table, 84 in  1,489.00
  Upholstered dining chair (6)  702.00
  Delivery and assembly  127.50
Total: 2,318.50

Email from Dana Harrow, owner
Date: 2026-08-20
From: dana@harrowlane.example
To: bookkeeping@harrowlane.example
Subject: Arbor & Hearth charge

The Arbor & Hearth charge on the company card (Aug 14, $2,318.50) is a personal purchase for my house. Please record it against me and I will pay the company back.

Dana
{"lines":[{"id":"2100-2026-08-034","account":"1250 Due from shareholder","insufficient_information":false,"reason":"Receipt shows a walnut dining table and chairs delivered to 14 Wrenfield Ct (a residential address, not a company site). Owner Dana Harrow's email of 2026-08-20 confirms this was a personal purchase for her house and asks that it be recorded against her with repayment to the company, indicating a receivable from the shareholder rather than a distribution or business expense."}]}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

Sep 22, 2:10 PM UTC, Engagement accountant (scripted, fictional date), on the replayed v-0c554f36f58502: Personal purchase, established by the owner's email and the delivery address. Due from the shareholder, repayable, as the owner asked.

Posted as C-0158, dated 2026-08-14. Written as C-0158.
AccountDebitCredit
1250 Due from shareholder2,318.50
2100 Business card, Prairie Commerce Bank x77152,318.50

Refused. 3900 Owner's draw: no such account in this chart (an S corporation: equity is 3000, 3100 and 3200). The policy never codes a transaction with the owner to equity by itself: the line waits for the accountant, and no EBITDA adjustment is made here.

Seeded for the test. The model proposed 1250 Due from shareholder from the owner's email. This automatic owner's draw coding, as a bank rule would do it, was written for the test.

  1. Decision (Engagement accountant): Personal purchase, established by the owner's email and the delivery address. Due from the shareholder, repayable, as the owner asked.
  2. Attempt 1: Written as C-0158.
N-7Hollis HVAC Parts credit HCM-2291 dated Jul 30, received Sep 15Stopped, then decided

Documents

  • Credit memo HCM-2291, Hollis HVAC Parts
    Credit memoHollis HVAC Parts
    Number
    HCM-2291
    Date
    Jul 30, 2026
    Reason
    Return of 4 compressor contactor kits, received Jul 28 (RMA 55190)
    Compressor contactor kit, 3-pole 40A (4), returned(612.80)
    Total(612.80)
    Received Sep 15, 2026, AP inbox

Checks

  • Operation dateOperation dated 2026-07-30, on or before the closing date 2026-07-31. Not posted; the reason is kept and the accountant decides.Fails

Review policy: Operation dated on or before the closing date.

Proposals

From the model's reading, on the document date. Record the credit on its document date, 2026-07-30.

Built by the circuit: A vendor credit on the document date the model read. From the model's reading read-hollis-hcm2291, recorded Sep 25, 1:19 PM UTC.

Dated 2026-07-30. Version v-19fcb8d1cf375f.
AccountDebitCredit
2000 Accounts payable HCM-2291612.80
5200 Materials and parts612.80

Built by the circuit from the decision. Record it on 2026-08-31, with the July return named in the memo.

Built by the circuit from a person's decision: Blocked version v-19fcb8d1cf375f with the date the accountant chose.

Dated 2026-08-31. Version v-05adb6490317ac.
AccountDebitCredit
2000 Accounts payable HCM-2291612.80
5200 Materials and parts612.80
The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Company: Harrow Lane Facility Services, Inc. (fictional), commercial HVAC, electrical and preventive maintenance services, an S corporation owned by Dana Harrow.

Read this vendor document received in the AP inbox and propose how to record it. Dates as YYYY-MM-DD. Choose the account from this chart only:
4000 Maintenance contract revenue
4100 Project and repair revenue
5000 Direct labor
5100 Subcontractors
5200 Materials and parts
5300 Equipment rental
6000 Office and management salaries
6050 Payroll taxes
6060 Employee benefits
6100 Rent
6150 Utilities and telecom
6200 Insurance
6250 Vehicle fuel and maintenance
6300 Software and subscriptions
6350 Professional fees
6400 Travel and meals
6450 Office supplies
6460 Uniforms and linen
6500 Bank and service fees
6550 Waste removal
6600 Depreciation
6900 Miscellaneous expense
7000 Interest income

Document text:
Credit memo HCM-2291, Hollis HVAC Parts
Vendor printed: Hollis HVAC Parts
Number: HCM-2291
Date: 2026-07-30
Reason: Return of 4 compressor contactor kits, received Jul 28 (RMA 55190)
  Compressor contactor kit, 3-pole 40A (4), returned  -612.80
Total: -612.80
{"vendor":"Hollis HVAC Parts","document_number":"HCM-2291","document_date":"2026-07-30","service_start":null,"service_end":null,"total":"-612.80","relation":"credit","related_number":"RMA 55190","proposed_account":"5200 Materials and parts","insufficient_information":false,"reason":"This is a vendor-issued credit memo (negative total) from Hollis HVAC Parts for the return of 4 compressor contactor kits (3-pole, 40A) originally received Jul 28, 2026, under RMA 55190. It reduces the amount owed to this vendor and offsets the cost of parts. Propose recording a reduction to Accounts Payable (Hollis HVAC Parts) with an offsetting credit to 5200 Materials and parts for $612.80, since these are HVAC repair parts rather than a rented/depreciable asset or subcontracted labor. No original purchase invoice number is stated in this document, only the receipt date (Jul 28, 2026) and RMA 55190 - the accountant should match this credit to the corresponding original invoice from Hollis HVAC Parts covering that receipt date/RMA to confirm it isn't a duplicate credit and to close out the correct AP item."}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

Sep 22, 2:30 PM UTC, Engagement accountant (scripted, fictional date), on the replayed v-19fcb8d1cf375f: July stays closed. Record the credit in August, dated Aug 31, naming the July return in the memo.

Posted as C-0198, dated 2026-08-31. Written as C-0198.
AccountDebitCredit
2000 Accounts payable HCM-2291612.80
5200 Materials and parts612.80
  1. Posting stopped. Operation dated 2026-07-30, on or before the closing date 2026-07-31. Not posted; the reason is kept and the accountant decides.
  2. Decision (Engagement accountant) on v-19fcb8d1cf375f: July stays closed. Record the credit in August, dated Aug 31, naming the July return in the memo. The circuit builds v-05adb6490317ac, same lines, date 2026-08-31.
  3. Attempt 1: Written as C-0198.
N-9Metro Refrig Supply Co. and Metro Refrigerant Supply: one vendor under two namesSame vendor, confirmed

Documents

  • Form W-9 on file, Metro Refrig Supply Co.
    Form W-9 on file
    Date
    Nov 3, 2025
    Name on form
    Metro Refrigerant Supply Co., Inc.
    Business name
    Metro Refrig Supply Co.
    TIN
    XX-XXX7602
    Address
    2150 Industrial Pkwy, Unit 4
    Received Nov 3, 2025
  • Form W-9 on file, Metro Refrigerant Supply
    Form W-9 on file
    Date
    Jul 14, 2026
    Name on form
    Metro Refrigerant Supply Co., Inc.
    Business name
    Metro Refrigerant Supply
    TIN
    XX-XXX7602
    Address
    2150 Industrial Pkwy, Unit 4
    Received Jul 14, 2026

Checks

  • Identity evidenceSame TIN on file (38-4417602)Holds
  • Identity evidenceSame remit-to address (2150 Industrial Pkwy, Unit 4)Holds
  • Merged automatically on a similar nameNo: records stay separate and are linked once the team confirmsHolds

Proposals

Identity. Treat V07 and V08 as one vendor for duplicate searches; keep both records.

Proposed by the model: record identity-metro, recorded Sep 25, 1:19 PM UTC, claude-sonnet-5.

No entry. Version v-1b71afee31051c.

The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Two vendor records exist in the books. Are they the same vendor?

Record V07: Metro Refrig Supply Co., remit-to 2150 Industrial Pkwy, Unit 4, TIN on file 38-4417602
Record V08: Metro Refrigerant Supply, remit-to 2150 Industrial Pkwy, Unit 4, TIN on file 38-4417602

W-9 forms on file:
Form W-9 on file, Metro Refrig Supply Co.
Date: 2025-11-03
Name on form: Metro Refrigerant Supply Co., Inc.; business name: Metro Refrig Supply Co.; TIN: 38-4417602; address: 2150 Industrial Pkwy, Unit 4; signed 2025-11-03

Form W-9 on file, Metro Refrigerant Supply
Date: 2026-07-14
Name on form: Metro Refrigerant Supply Co., Inc.; business name: Metro Refrigerant Supply; TIN: 38-4417602; address: 2150 Industrial Pkwy, Unit 4; signed 2026-07-14
{"evidence":["Both vendor records (V07 and V08) share the identical TIN: 38-4417602.","Both vendor records share the identical remit-to address: 2150 Industrial Pkwy, Unit 4.","Both W-9 forms on file list the same legal/entity name: \"Metro Refrigerant Supply Co., Inc.\"","Both W-9 forms list the same TIN (38-4417602) and the same address (2150 Industrial Pkwy, Unit 4).","The only differences between the two W-9s are the 'business name' (DBA) field - \"Metro Refrig Supply Co.\" (filed 2025-11-03) vs. \"Metro Refrigerant Supply\" (filed 2026-07-14) - and the filing date, consistent with a trade-name update rather than a distinct legal entity.","The vendor record display names (\"Metro Refrig Supply Co.\" for V07 and \"Metro Refrigerant Supply\" for V08) correspond one-to-one with the DBA names on the two W-9s, suggesting each vendor record was created around the time its respective W-9 was collected."],"reason":"For IRS/1099 purposes, taxpayer identity is established by the TIN paired with the legal name on file, not by the trade/DBA name. Both W-9s show the identical legal name (\\\"Metro Refrigerant Supply Co., Inc.\\\") and identical TIN (38-4417602) at the identical address, with only the DBA/business-name field differing between the two forms-consistent with the vendor having updated its trade name between November 2025 and July 2026. Both vendor records (V07, V08) also share that same TIN and address. This is strong evidence that V07 and V08 represent one and the same legal vendor entity, currently duplicated in the books under two slightly different display names. I am not merging or posting anything; I recommend the accountant confirm this reading (e.g., verify there isn't a legitimate reason for two related-but-distinct entities sharing a TIN, such as a parent/DBA split) and, if confirmed, consolidate V07 and V08 into a single vendor record, retaining the most current legal/DBA name and W-9, and reissue any 1099 reporting under one TIN to avoid split reporting.","same_vendor":"yes"}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

Sep 9, 3:20 PM UTC, AP lead (scripted, fictional date), on the replayed v-1b71afee31051c: Same vendor: same TIN and remit-to on both W-9s. Link the two records; do not merge them.

  1. Suggested: same TIN and remit-to address on two vendor records.
  2. Decision (AP lead): same vendor. Records linked, not merged.

Accepted by the controls

N-2Operating credit of Aug 3, 150,000.00, from the money market (1 refused)Matched, no new entry

Documents

  • Cedar Trust Savings, July statement header
    Statement headerCedar Trust Savings
    Date
    Jul 31, 2026
    Account holder
    Harrow Lane Facility Services, Inc.
    Account
    x0932, Business money market
    Jul 31, 2026 ONLINE TRANSFER TO PRAIRIE COMMERCE BANK XXXXX4471 REF TRF-20260731-01(150,000.00)
    Received Sep 1, 2026

Bank line: 1010-2026-08-006

Checks

  • The sending account is the company'sx0932: Cedar Trust Savings money market, holder on its statement: Harrow Lane Facility Services, Inc.Holds
  • The other leg is on the sending account's statement1030-2026-07-002, 2026-07-31, (150,000.00), ref TRF-20260731-01Holds
  • Recorded in the books and not yet clearedC-0001, dated 2026-07-31, in transit at July 31 (named COR-H-1 in the model's input: the H-1 correction, posted as C-0001)Holds
  • Transit between the two datesSent 2026-07-31 (Friday), credited 2026-08-03 (Monday): in transit over the July 31 month endHolds

Proposals

Model's proposal: match the recorded transfer. Match to C-0001 (transfer recorded 2026-07-31); no new entry.

Proposed by the model: record bank-2026-08-transfer, recorded Sep 25, 1:18 PM UTC, claude-sonnet-5.

No entry. Version v-092f45ae38418f.

The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Company: Harrow Lane Facility Services, Inc. (fictional), commercial HVAC, electrical and preventive maintenance services, an S corporation owned by Dana Harrow.

A new line on the operating account (x4471) needs a proposal: match it to a transaction already recorded, or create a new one.

New bank line: {"id": "1010-2026-08-006", "date": "2026-08-03", "description": "INCOMING ACH CEDAR TRUST SAVINGS XFER XXXXX0932 REF TRF-20260731-01", "amount": "150,000.00"}

Accounts the company owns:
Prairie Commerce Bank Checking x4471, holder Harrow Lane Facility Services, Inc., ledger account 1010
Prairie Commerce Bank Checking x4489, holder Harrow Lane Facility Services, Inc., ledger account 1020
Cedar Trust Savings Money market x0932, holder Harrow Lane Facility Services, Inc., ledger account 1030
Prairie Commerce Bank Business credit card x7715, holder Harrow Lane Facility Services, Inc., ledger account 2100

Recorded in the books and not yet cleared on the operating account (same amount):
{"id": "COR-H-1", "date": "2026-07-31", "amount": "150,000.00", "memo": "Transfer from money market x0932 to operating x4471, ref TRF-20260731-01 (correction approved Sep 9 of a July entry that had coded the money market debit to expense)"}

Document on file:
Cedar Trust Savings, July statement header
Date: 2026-07-31
Holder: Harrow Lane Facility Services, Inc.
Bank: Cedar Trust Savings
Account last4: 0932
Kind: Business money market
  2026-07-31  ONLINE TRANSFER TO PRAIRIE COMMERCE BANK XXXXX4471 REF TRF-20260731-01  -150,000.00

If you create a new transaction, name its account from this chart:
1010 Operating checking, Prairie Commerce Bank x4471
1020 Payroll checking, Prairie Commerce Bank x4489
1030 Money market, Cedar Trust Savings x0932
1200 Accounts receivable
1250 Due from shareholder
1300 Prepaid insurance
1500 Vehicles and equipment
1590 Accumulated depreciation
2000 Accounts payable
2100 Business card, Prairie Commerce Bank x7715
2200 Accrued liabilities
3000 Common stock
3100 Retained earnings
3200 Shareholder distributions
4000 Maintenance contract revenue
4100 Project and repair revenue
5000 Direct labor
5100 Subcontractors
5200 Materials and parts
5300 Equipment rental
6000 Office and management salaries
6050 Payroll taxes
6060 Employee benefits
6100 Rent
6150 Utilities and telecom
6200 Insurance
6250 Vehicle fuel and maintenance
6300 Software and subscriptions
6350 Professional fees
6400 Travel and meals
6450 Office supplies
6460 Uniforms and linen
6500 Bank and service fees
6550 Waste removal
6600 Depreciation
6900 Miscellaneous expense
7000 Interest income
{"account":null,"action":"match_existing","existing_id":"COR-H-1","insufficient_information":false,"reason":"The incoming ACH of $150,000.00 on x4471 (2026-08-03), referencing \"CEDAR TRUST SAVINGS XFER ... REF TRF-20260731-01,\" is the clearing of the transfer already recorded in the books as COR-H-1. That entry (dated 2026-07-31, same $150,000.00 amount, same reference TRF-20260731-01) describes the transfer from money market x0932 to operating x4471 and was noted as not yet cleared on x4471. The Cedar Trust Savings July statement independently confirms the outgoing leg on 2026-07-31 with the identical reference and amount, sent to x4471. The 3-day gap between the savings debit and the checking credit is normal ACH timing. No new journal entry is warranted; this bank line should be matched to COR-H-1 to clear it."}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

No decision needed: the controls held.

Refused. Categorize instead of match: the ledger already holds this receipt (C-0001, in transit since 2026-07-31). A second entry would put 150,000.00 more in August's ledger receipts than the bank's adjusted receipts, and 150,000.00 of revenue that was never earned.

Seeded for the test. The model matched the line to the transfer already recorded. This categorization as revenue, what an automatic rule on incoming ACH would do, was written for the test.

  1. Matched to C-0001. No new entry: the transfer was recorded on 2026-07-31.
N-3Westbrook Property Group, 8,000.00 with a payment advice (2 refused)Accepted by the controls

Documents

  • Payment advice, Westbrook Property Group
    Emailaccountspayable@westbrook-pg.example
    From
    accountspayable@westbrook-pg.example
    To
    ar@harrowlane.example
    Date
    Aug 18, 2026
    Subject
    ACH payment 8/18, $8,000.00

    Hello, We sent an ACH payment of $8,000.00 today. Please apply $5,000.00 to invoice INV-24393; the remaining $1,000.00 is held until the punch list is signed off. Apply $3,000.00 to invoice INV-24444; the remaining $2,000.00 will go out with our September run. Thank you, Westbrook Property Group, Accounts Payable

    Received Aug 18, 2026

Bank line: 1010-2026-08-088

Checks

  • Invoices belong to the payer2 invoice(s) of Westbrook Property GroupHolds
  • Each amount within the invoice's open balanceYesHolds
  • Total applied within the payment8,000.00 applied of 8,000.00 receivedHolds
  • A payment advice says how to apply itPayment advice on fileHolds

Proposals

Model's application of the payment. 5,000.00 to INV-24393, 3,000.00 to INV-24444

Proposed by the model: record payment-westbrook, recorded Sep 25, 1:18 PM UTC, claude-sonnet-5.

Dated 2026-08-18. Version v-03eaff55dc8988.
AccountDebitCredit
1010 Operating checking, Prairie Commerce Bank x44718,000.00
1200 Accounts receivable applied to INV-24393 5,000.00, INV-24444 3,000.008,000.00
The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Company: Harrow Lane Facility Services, Inc. (fictional), commercial HVAC, electrical and preventive maintenance services, an S corporation owned by Dana Harrow.

Propose how to apply this customer payment to open invoices. Amounts in dollars as plain numbers (5000.00).

Bank line: {"id": "1010-2026-08-088", "date": "2026-08-18", "description": "ACH CREDIT WESTBROOK PROPERTY GRO CCD 000440127", "amount": "8,000.00", "addenda": null}

Open invoices of Westbrook Property Group:
{"invoice": "INV-24393", "date": "2026-07-08", "due": "2026-08-07", "open": "6,000.00"}
{"invoice": "INV-24444", "date": "2026-07-20", "due": "2026-08-19", "open": "5,000.00"}

Document received the same day:
Payment advice, Westbrook Property Group
Date: 2026-08-18
From: accountspayable@westbrook-pg.example
To: ar@harrowlane.example
Subject: ACH payment 8/18, $8,000.00

Hello,

We sent an ACH payment of $8,000.00 today. Please apply $5,000.00 to invoice INV-24393; the remaining $1,000.00 is held until the punch list is signed off. Apply $3,000.00 to invoice INV-24444; the remaining $2,000.00 will go out with our September run.

Thank you,
Westbrook Property Group, Accounts Payable
{"allocation":[{"invoice":"INV-24393","amount":"5000.00"},{"invoice":"INV-24444","amount":"3000.00"}],"unapplied":"0.00","insufficient_information":false,"reason":"The remittance advice from Westbrook Property Group (received same day as the ACH) itemizes the $8,000.00 payment exactly: $5,000.00 to INV-24393 and $3,000.00 to INV-24444, totaling $8,000.00, which matches the bank credit precisely. Applying as instructed: INV-24393 ($6,000.00 open) receives $5,000.00, leaving $1,000.00 open, per customer, withheld pending punch-list sign-off. INV-24444 ($5,000.00 open) receives $3,000.00, leaving $2,000.00 open, per customer, expected with their September remittance run. Both invoices remain open for their respective withheld/deferred balances; no write-off or adjustment is proposed, since these are amounts the customer intends to pay later, not disputed reductions. No portion of the $8,000.00 is left unapplied."}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

No decision needed: the controls held.

Posted as C-0072, dated 2026-08-18. Written as C-0072.
AccountDebitCredit
1010 Operating checking, Prairie Commerce Bank x44718,000.00
1200 Accounts receivable applied to INV-24393 5,000.00, INV-24444 3,000.008,000.00

Refused. Total applied within the payment: 9,000.00 applied of 8,000.00 received

Seeded for the test. The model applied the payment exactly as the payment advice says. This allocation, larger than the payment, was written for the test.

Refused. Invoices belong to the payer: INV-24402 is an invoice of Crestview Senior Living

Seeded for the test. Written for the test: part of Westbrook's payment applied to an invoice of Crestview Senior Living.

  1. Attempt 1: Written as C-0072.
N-5aKessler Electric Supply invoice 58812 (same number, another vendor)Accepted by the controls

Documents

  • Invoice 58812, Kessler Electric Supply
    InvoiceKessler Electric Supply
    915 Market St
    Number
    58812
    Date
    Aug 27, 2026
    Delivered
    Aug 27, 2026
    Due
    Sep 26, 2026
    Terms
    Net 30
    Disconnect switch, 60A, non-fused (4)1,188.00
    THHN 10 AWG copper, 500 ft (6)1,752.00
    Total2,940.00
    Received Sep 15, 2026, AP inbox

Checks

  • Duplicate search (vendor identity and number)Same number found under another vendor (MRS-58812, V07): not the same vendor, not a duplicateHolds
  • Operation date2026-08-27, after the closing dateHolds
  • Account consistent with the vendorKessler Electric Supply usually codes to 5200Holds

Proposals

From the model's reading. Bill 58812, 2,940.00, 5200 Materials and parts.

Built by the circuit: A bill from the document's fields and the model's proposed account. From the model's reading read-kessler-58812, recorded Sep 25, 1:19 PM UTC.

Dated 2026-08-27. Version v-1ca472980025f7.
AccountDebitCredit
5200 Materials and parts2,940.00
2000 Accounts payable 588122,940.00
The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Company: Harrow Lane Facility Services, Inc. (fictional), commercial HVAC, electrical and preventive maintenance services, an S corporation owned by Dana Harrow.

Read this vendor document received in the AP inbox and propose how to record it. Dates as YYYY-MM-DD. Choose the account from this chart only:
4000 Maintenance contract revenue
4100 Project and repair revenue
5000 Direct labor
5100 Subcontractors
5200 Materials and parts
5300 Equipment rental
6000 Office and management salaries
6050 Payroll taxes
6060 Employee benefits
6100 Rent
6150 Utilities and telecom
6200 Insurance
6250 Vehicle fuel and maintenance
6300 Software and subscriptions
6350 Professional fees
6400 Travel and meals
6450 Office supplies
6460 Uniforms and linen
6500 Bank and service fees
6550 Waste removal
6600 Depreciation
6900 Miscellaneous expense
7000 Interest income

Document text:
Invoice 58812, Kessler Electric Supply
Vendor printed: Kessler Electric Supply
Remit to: 915 Market St
Number: 58812
Date: 2026-08-27
Due: 2026-09-26
Terms: Net 30
Delivered: 2026-08-27
  Disconnect switch, 60A, non-fused (4)  1,188.00
  THHN 10 AWG copper, 500 ft (6)  1,752.00
Total: 2,940.00
{"vendor":"Kessler Electric Supply","document_number":"58812","document_date":"2026-08-27","service_start":"2026-08-27","service_end":"2026-08-27","total":"2940.00","relation":"new_invoice","related_number":null,"proposed_account":"5200 Materials and parts","insufficient_information":false,"reason":"Standard vendor invoice for electrical supplies (60A non-fused disconnect switches and THHN 10 AWG copper wire) purchased from an electrical supply house, delivered in a single shipment on 2026-08-27. Line items sum correctly (1,188.00 + 1,752.00 = 2,940.00) and match the stated total. These are physical materials/inventory items rather than subcontracted labor, so account 5200 Materials and parts is the appropriate classification. No prior invoice number, credit memo language, or other reference is present, so this reads as a new, standalone invoice with no indication of being a revision, credit, or duplicate. Note: no job or work-order number is given, so this cannot be tied to a specific project for job-costing purposes beyond the general ledger account proposed."}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

No decision needed: the controls held.

Posted as C-0199, dated 2026-08-27. Written as C-0199.
AccountDebitCredit
5200 Materials and parts2,940.00
2000 Accounts payable 588122,940.00
  1. Attempt 1: Written as C-0199.
N-5bAllied Fleet Services 7713-R replaces 7713Revision posted

Documents

  • Revised invoice 7713-R, Allied Fleet Services
    InvoiceAllied Fleet Services
    3900 Fleet Dr

    REVISED INVOICE. Replaces invoice 7713 dated Aug 4, 2026.

    Number
    7713-R
    Replaces
    7713
    Date
    Aug 4, 2026
    Revised on
    Sep 14, 2026
    Due
    Sep 18, 2026
    Terms
    Net 45
    Truck 14: brake service, rotors and pads965.00
    Alternator, remanufactured880.00
    Core credit, alternator core returned Sep 2(235.00)
    Total1,610.00
    Received Sep 16, 2026, AP inbox
  • Invoice 7713 as entered on Aug 5
    InvoiceAllied Fleet Services
    Number
    7713
    Date
    Aug 4, 2026
    Due
    Sep 18, 2026
    Terms
    Net 45
    Truck 14: brake service, rotors and pads965.00
    Alternator, remanufactured880.00
    Total1,845.00
    Received Aug 5, 2026, Mail

Books entries: B-01086

Checks

  • The document names the invoice it replacesREVISED INVOICE. Replaces invoice 7713 dated Aug 4, 2026.Holds
  • The replaced invoice is posted, same vendorB-01086, 7713, 1,845.00Holds
  • Still unpaid1,845.00 openHolds
  • Original in an open period2026-08-04, after the closing dateHolds
  • Date of the changeAlternator core returned, Sep 2: the change belongs to that date, not to the invoice of Aug 4Holds

Proposals

Revision. Adjust 7713 by (235.00) on Sep 2; the original stays, linked. At August 31, 7713 is still 1,845.00.

Built by the circuit: Adjustment of the replaced bill, dated on the event the revised invoice names. From the model's reading read-allied-7713r, recorded Sep 25, 1:19 PM UTC.

Dated 2026-09-02. Version v-0ccabbae59f5ff.
AccountDebitCredit
2000 Accounts payable 7713235.00
6250 Vehicle fuel and maintenance235.00
The model's input and raw output, as recorded
System: You propose bookkeeping entries for an accountant to review. You never post anything. If the information given does not establish an answer, say so rather than guess.

Company: Harrow Lane Facility Services, Inc. (fictional), commercial HVAC, electrical and preventive maintenance services, an S corporation owned by Dana Harrow.

Read this vendor document received in the AP inbox and propose how to record it. Dates as YYYY-MM-DD. Choose the account from this chart only:
4000 Maintenance contract revenue
4100 Project and repair revenue
5000 Direct labor
5100 Subcontractors
5200 Materials and parts
5300 Equipment rental
6000 Office and management salaries
6050 Payroll taxes
6060 Employee benefits
6100 Rent
6150 Utilities and telecom
6200 Insurance
6250 Vehicle fuel and maintenance
6300 Software and subscriptions
6350 Professional fees
6400 Travel and meals
6450 Office supplies
6460 Uniforms and linen
6500 Bank and service fees
6550 Waste removal
6600 Depreciation
6900 Miscellaneous expense
7000 Interest income

Document text:
Revised invoice 7713-R, Allied Fleet Services
Vendor printed: Allied Fleet Services
Remit to: 3900 Fleet Dr
Number: 7713-R
Replaces: 7713
Date: 2026-08-04
Revised on: 2026-09-14
Due: 2026-09-18
Terms: Net 45
Banner: REVISED INVOICE. Replaces invoice 7713 dated Aug 4, 2026.
  Truck 14: brake service, rotors and pads  965.00
  Alternator, remanufactured  880.00
  Core credit, alternator core returned Sep 2  -235.00
Total: 1,610.00
{"vendor":"Allied Fleet Services","document_number":"7713-R","document_date":"2026-08-04","service_start":null,"service_end":null,"total":"1610.00","relation":"revision_of_another_invoice","related_number":"7713","proposed_account":"6250 Vehicle fuel and maintenance","insufficient_information":false,"reason":"Banner explicitly states this is a revised invoice replacing original 7713 dated 2026-08-04. That date is used as document_date because it matches the printed \"Date:\" field and because Due 2026-09-18 = 2026-08-04 + Net 45, confirming it (not the 2026-09-14 \"Revised on\" date) is the controlling invoice date. Line items: Truck 14 brake service/rotors/pads $965.00 + remanufactured alternator $880.00 - alternator core credit -$235.00 = $1,610.00, matching the stated total. These are repair costs on a company service vehicle (Truck 14), so 6250 Vehicle fuel and maintenance fits best (not a job-cost or materials account, since this is fleet upkeep rather than a customer project). No service period is stated - only an invoice date and an unrelated core-return date (Sep 2) - so service_start/service_end are left blank rather than assumed. Because this document replaces 7713, the accountant should verify whether the original 7713 was already recorded or paid; if so it must be reversed/adjusted so only this $1,610.00 revised version is booked, to avoid double-counting or duplicate payment."}

Shown as recorded, long dashes printed as hyphens.

Decision and posting

No decision needed: the controls held.

Posted as C-0200, dated 2026-09-02. Written as C-0200.
AccountDebitCredit
2000 Accounts payable 7713235.00
6250 Vehicle fuel and maintenance235.00
  1. Attempt 1: Written as C-0200.
N-8176 invoices dated on or before Jul 31 were paid in August (101 payments)Accepted by the controls

Documents

Bank line 1010-2026-08-141

Checks

  • What the closing date guardsOperations dated on or before 2026-07-31. A payment received in August is an August operation.Holds
  • Example: Hollins Warehouse PartnersINV-24054 dated 2026-05-13, due 2026-06-12, paid 2026-08-26 by check, 75 days after its due dateHolds
  • Operation date of every one of them2026-08-03 to 2026-08-31, all after 2026-07-31: posted, nothing in June or July changesHolds

Proposals

Decision and posting

No decision needed: the controls held.

Refused

  • N-2 Categorize instead of match: the ledger already holds this receipt (C-0001, in transit since 2026-07-31). A second entry would put 150,000.00 more in August's ledger receipts than the bank's adjusted receipts, and 150,000.00 of revenue that was never earned.Seeded for the test: the model did not propose it.Refused
  • N-3 Total applied within the payment: 9,000.00 applied of 8,000.00 receivedSeeded for the test: the model did not propose it.Refused
  • N-3 Invoices belong to the payer: INV-24402 is an invoice of Crestview Senior LivingSeeded for the test: the model did not propose it.Refused
  • N-4 A payment advice says how to apply it: No payment advice on file; the review policy says to request oneSeeded for the test: the model did not propose it.Refused
  • N-6 3900 Owner's draw: no such account in this chart (an S corporation: equity is 3000, 3100 and 3200). The policy never codes a transaction with the owner to equity by itself: the line waits for the accountant, and no EBITDA adjustment is made here.Seeded for the test: the model did not propose it.Refused

Backlog, June and July

H-1Transfer to operating posted to Miscellaneous expenseCorrected before the close

Documents

Bank line 1030-2026-07-002

Checks

  • Counterpart is an account the company ownsx4471 is Prairie Commerce Bank checking, holder Harrow Lane Facility Services, Inc.Holds
  • Both proofs of cash tie on the books as they standJuly, before the correction: cash reconciles, the P&L does notHolds
  • Coded to profit and loss6900 Miscellaneous expenseFails

Proposals

Correction. Move 150,000.00 from 6900 to 1010: a transfer between the company's own accounts, not an expense.

Built by the circuit: Movement between owned accounts coded to profit and loss.

Dated 2026-07-31. Version v-0535c72c3adbc9.
AccountDebitCredit
1010 Operating checking, Prairie Commerce Bank x4471150,000.00
6900 Miscellaneous expense150,000.00

Decision and posting

Sep 9, 3:00 PM UTC, Engagement accountant (scripted, fictional date), on the replayed v-0535c72c3adbc9: A transfer between the company's own accounts, not an expense. Correct July before July is closed.

Posted as C-0001, dated 2026-07-31. Written as C-0001.
AccountDebitCredit
1010 Operating checking, Prairie Commerce Bank x4471150,000.00
6900 Miscellaneous expense150,000.00
  1. Found in the 2026-07 books: ONLINE TRANSFER TO PRAIRIE COMMERCE BANK XXXXX4471 REF TRF-20260731-01
  2. Decision (Engagement accountant): approve v-0535c72c3adbc9.
  3. Attempt 1: Written as C-0001.
H-2Refund coded to revenue after a credit memo had already reduced the saleCorrected before the close

Documents

  • Credit memo CM-1037, Oakmont Dental Partners
    Credit memoOakmont Dental Partners
    Number
    CM-1037
    Date
    Jun 22, 2026
    Reason
    After-hours call-out of May 29 waived
    Applies to
    INV-24180
    Received Jun 22, 2026
  • Check 10263, refund to Oakmont
    Check copy
    Number
    10263
    Date
    Jun 24, 2026
    Pay to
    Oakmont Dental Partners

    640.00

    Received Jun 24, 2026

Books entries: B-00376

Checks

  • Customer holds an open credit of the same amountCM-1037, 640.00, Oakmont Dental PartnersHolds
  • The refund is coded to revenue4100 Project and repair revenue: the sale is reduced a second timeFails

Proposals

Correction. Apply refund 10263 to CM-1037 and restore 640.00 of revenue: the credit memo already reduced the sale.

Built by the circuit: Refund to a customer holding an open credit, coded to revenue.

Dated 2026-06-24. Version v-1c80609abbd642.
AccountDebitCredit
1200 Accounts receivable applied to CM-1037 640.00640.00
4100 Project and repair revenue640.00

Decision and posting

Sep 9, 3:05 PM UTC, Engagement accountant (scripted, fictional date), on the replayed v-1c80609abbd642: The credit memo already reduced the sale; the refund settles the customer's credit.

Posted as C-0002, dated 2026-06-24. Written as C-0002.
AccountDebitCredit
1200 Accounts receivable applied to CM-1037 640.00640.00
4100 Project and repair revenue640.00
  1. Found in the 2026-06 books: Check 10263, Oakmont Dental Partners, refund
  2. Decision (Engagement accountant): approve v-1c80609abbd642.
  3. Attempt 1: Written as C-0002.

Three indicators, from the same accounts

E-1

Reconciled cash

1,436,300.61

Operating x4471
948,327.47
Payroll x4489
25,000.00
Money market x0932
462,973.14
Card x7715, owed, not counted
23,304.69

Past-due receivables

302,710.94

Invoices past due
83
1 to 30 days
273,862.50
31 to 60 days
27,781.61
61 to 90 days
1,066.83
Over 90 days
0.00
Unapplied (N-4), not netted
(10,000.00)

Payables due by September 15

67,775.83

Bills
21
Earliest due
September 4
Open bills in total
184,561.09

At August 31, 2026. Accrual basis. Books v3 (fictional timeline to September 24, replayed September 25), before the cut-off decision: approving A-1 adds 18,650.00 to accrued liabilities, not to payables, and lowers August's result by the same amount. Which of Crestview's invoices are past due depends on its answer to N-4.

Handover to the accounting team

For each exception: who decides, what is missing, what the team can change, and the test that protects it.

F-1
ExceptionWho decidesWhat is missing todayParameterProtected by
August cost invoiced in September (A-1)Engagement accountantNothing: invoice and work order on fileAccrual threshold, 5,000.00tests/cutoff.test.ts
Payment without remittance (N-4)AR leadCrestview's remittance, asked for on August 28Without remittance: requesttests/payments.test.ts
Same vendor and number, another amount (N-5)AP leadNothing: decided on the vendor statementDuplicate key: vendor identity and number, amount left outtests/duplicates.test.ts
Transaction with the owner (N-6)Engagement accountantNothing: owner's email and receipt on fileRelated parties: Dana Harrowtests/owner.test.ts
Operation in a closed period (N-7)Engagement accountantNothing: credit memo on fileClosing date 2026-07-31tests/closing.test.ts
Transfer between the company's accounts (N-2)The circuit, when both accounts and both legs checkNothing: both statements on fileRegister of the company's accountstests/transfer.test.ts
Posting after an incident (N-5)The circuitNothingAttempt identity: case and approved versiontests/retry.test.ts
Any approvalThe role named for the exceptionThe decision itselfAn approval covers one versiontests/cutoff.test.ts

Illustrative review policy. Configurable by the accounting team.

A proposal waits for a person whenOnIn this run
Transaction with the owner or a related party, whatever the amountYes1 case
Payee bank details changed since the last paymentYesNone
Operation dated on or before the closing dateYes1 case
Two documents disagree: same vendor and number, different amountYes1 case
Any accrual or cut-off entryYes1 case
The model answered that the information is insufficientYes1 case
Proposed account differs from the account this merchant or vendor used before, or no historyYes1 case
Amount at or above the review threshold: 25,000.00YesNone

Amounts are one trigger among several; a transaction with the owner, a closed period or two documents that disagree wait for a person whatever the amount. Decisions shown on this page are part of the fictional example, recorded by role; no reviewer signs here.

QuickBooks Online, in Intuit's words

  • Match it, or Categorize it. N-2: the August 3 credit is matched to the July 31 transfer; categorizing it would record the money twice.
    “Match it: Choose this option if you already entered a record for the transaction in QuickBooks. Categorize it: Choose this option if you don't have an existing record. This creates a brand-new record in QuickBooks.” Match online bank transactions in QuickBooks Online, read September 25, 2026.
  • For review is not in the books. The August bank and card lines were in that state in the fictional export: nothing of them was in the books.
    “They appear in the For review tab, but they won't affect your books until you match or categorize them.” Match online bank transactions in QuickBooks Online, read September 25, 2026.
  • Reconciling is its own step. B-1 is computed here from the statements and the books; no QuickBooks reconciliation was run.
    “Enter the Ending balance and Ending date from your account statement. [...] After finishing, QuickBooks saves a reconciliation report.” Reconcile an account in QuickBooks Online, read September 25, 2026.
  • The closing date: a warning or a password. N-7: QuickBooks guards changes to transactions dated on or before the date. The circuit applies the same date line to the new postings it makes, and stops outright instead of warning; the override is the accountant's.
    “If someone tries to change or delete these transactions, QuickBooks will either give a warning or ask for a password, depending on your settings. [...] Any attempt to change transactions dated on or before the lock date will trigger the warning or password prompt you set.” Lock your books in QuickBooks Online, read September 25, 2026.
  • Error 6210 through the API. N-7: an integration cannot use the password route; the decision goes back to a person.
    “The account period has closed and the account books cannot be updated through through the QBO Services API. Please use the QBO website to make these changes.” 6210 Account Period Closed (Intuit Developer Support), read September 25, 2026.
  • Bank rules that post by themselves. H-1: the July transfer went to expense through such a rule. A review circuit only controls what does not bypass it.
    “If you turn on auto-add, QuickBooks applies the rule to any downloaded transaction it applies to and posts it immediately. Remember to use this with caution, because if you leave it on you won't get a chance to review transactions before QuickBooks adds them to your books.” Set up bank rules to categorize online banking transactions (the option is now called Auto-post), read September 25, 2026.
  • Request IDs. N-5: the retry reuses the attempt identity and first reads what the record holds.
    “We strongly recommend you use request IDs for requests that write, modify, or delete data. This guarantees idempotence.” Basic ID and field definitions (Intuit Developer), read September 25, 2026.
  • One payment, several invoices. N-3: a split payment is normal work, applied as the customer's advice says.
    “Select the checkbox for each invoice you are recording a payment for. If you select multiple invoices, the open balance for each appears in the PAYMENT column.” Record invoice payments in QuickBooks Online, read September 25, 2026.
  • Refund after a credit memo. H-2: the June refund had been coded to revenue instead, reducing the sale a second time.
    “Next, create an expense to record the money you are refunding to the customer. [...] In the Category column, select the Debtors account (Accounts Receivable). [...] Finally, link the credit memo and the expense to show the credit has been refunded.” Refund your customer for a paid invoice in QuickBooks Online, read September 25, 2026.

Recorded AI proposals and tests

20 calls to claude-sonnet-5, made once on September 25, 2026 through Claude Code (2.1.282 (Claude Code)), with no tools and no other context. Each record keeps its input, raw output and time, and opens in its case. The page and the tests replay them; nothing calls a model when this page loads. 5 wrong proposals the model did not make were written for the tests and are marked as such.

109 of 109 tests passed when this page was built, on the same functions the page uses: tests/adversarial.test.ts (6), tests/closing.test.ts (7), tests/cutoff.test.ts (8), tests/duplicates.test.ts (6), tests/owner.test.ts (5), tests/payments.test.ts (7), tests/proof.test.ts (9), tests/records.test.ts (8), tests/reference.test.ts (37), tests/retry.test.ts (4), tests/sources.test.ts (9), tests/transfer.test.ts (3). The reference books were written and checked before the engine existed.