Period-End AR/AP Close: Cutoff, Accruals, and Control Account Reconciliation

Period-End AR/AP Close: Cutoff, Accruals, and Control Account Reconciliation

Closing the books at the end of each accounting period is one of the most important routines a bookkeeper performs. For Accounts Receivable (AR) and Accounts Payable (AP), the close involves three connected tasks: enforcing revenue and expense cutoff, recording accrual entries, and reconciling subsidiary ledgers to the general ledger (GL) control accounts. Doing these steps correctly means the financial statements reflect exactly what was earned and owed during the period—nothing more, nothing less.

Why Cutoff Matters

Accrual-basis accounting requires that revenue is recognized when it is earned and expenses are recognized when they are incurred, regardless of when cash changes hands. Cutoff is the process of making sure every transaction lands in the correct accounting period.

AR cutoff: If your company delivers goods or completes a service before the last day of the period but has not yet sent an invoice, the revenue is still earned. Without an adjusting entry, income is understated and AR is understated on the balance sheet.

AP cutoff: If a vendor ships goods that arrive before period-end but the invoice has not been entered into the system, the expense (and liability) is understated. A common source of cutoff errors is the gap between when receiving reports are signed and when the accounting team posts the related vendor bill.

To check cutoff, compare the dates on shipping documents, receiving reports, sales orders, and vendor invoices against the period-end date. Any item where the economic event occurred on or before the last day of the period must be recorded in that period.

Accrual Journal Entries

When a cutoff issue is found, the correction is an adjusting journal entry recorded on the last day of the period.

Accrued revenue (unbilled AR): Debit Accounts Receivable (or an Accrued Revenue asset account) and credit the appropriate Revenue account for the amount earned but not yet invoiced.

Accrued expense / unrecorded AP: Debit the appropriate Expense account and credit Accounts Payable (or Accrued Liabilities) for the amount incurred but not yet entered as a vendor bill.

These entries are typically reversed at the start of the next period so that when the actual invoice is posted it does not double-count the amount. Always date adjusting entries on the last day of the closing period, not the day you write them.

The Control Account and the Subsidiary Ledger

The control account is the AR or AP balance shown in the general ledger. The subsidiary ledger is the detailed list of individual customer balances (for AR) or individual vendor balances (for AP) that together should add up to the control account total.

The golden rule: the sum of all subsidiary ledger balances must equal the GL control account balance. When they do not match, a discrepancy exists and must be traced before the books are closed.

Common causes of discrepancies include:

• A transaction posted to the subsidiary ledger but not to the GL (or vice versa)
• A transaction posted to the wrong subsidiary account
• A payment applied to the wrong customer or vendor
• An unposted or voided transaction that was not fully reversed

Reconciling AR and AP in QuickBooks

1. Run the Trial Balance report as of the last day of the period. Note the AR and AP totals.

2. Run the Customer Balance Detail (for AR) or Vendor Balance Detail (for AP) report for the same date.

3. Total the subsidiary detail manually or using a spreadsheet.

4. Compare the two totals. A difference of even one cent requires investigation.

5. Sort transactions by date or amount to isolate the discrepancy. Look for unposted bills, unapplied credits, or transactions that fall just outside the period date range.

6. Correct the root cause—post the missing transaction, apply the unapplied credit, or correct the wrong date—then re-run both reports to confirm they agree.

The Period-End Checklist

Professional bookkeepers use a signed checklist to document every close step. This creates an audit trail and ensures nothing is skipped. A typical AR/AP close checklist includes:

• [ ] All sales invoices for the period entered and dated correctly
• [ ] All vendor bills received through period-end entered
• [ ] Cutoff review completed; adjusting entries recorded and dated last day of period
• [ ] Customer payments applied; unapplied credits reviewed
• [ ] Vendor payments applied; any prepayments reviewed
• [ ] AR subsidiary ledger total agrees with GL control account
• [ ] AP subsidiary ledger total agrees with GL control account
• [ ] Adjusting entry summary prepared for supervisor review
• [ ] Checklist signed and filed with period-end workpapers

Signing this checklist is a professional responsibility. Never sign off a step you have not actually completed.

Accuracy and Data Integrity

Accuracy is the top priority in bookkeeping. A $200 discrepancy left unresolved will carry forward into every future period, compounding errors in financial statements that managers, lenders, and tax preparers rely on. Trace every difference, no matter how small, before finalizing the close.

From a workplace safety standpoint, office environments present ergonomic and data-security risks during high-volume close periods. Take regular breaks to avoid repetitive-strain injury from extended keyboard use. Follow your organization's data-security policy—never share login credentials, lock your workstation when stepping away, and handle vendor and customer financial data according to applicable privacy requirements. Back up QuickBooks data files before making batch adjusting entries so that errors can be reversed without data loss.