Month-End Close

Year-End Close Checklist for Accounts Payable

Complete year-end closing checklist for AP. Ensure accurate financials and smooth audit with this comprehensive guide to closing accounts payable.

3 min read · Updated February 2026

Year-End Close Checklist for Accounts Payable

Year-end close is month-end close with higher stakes. In addition to standard closing tasks, you’re preparing for audits, ensuring tax compliance, and finalizing the books for the entire fiscal year.

Year-End Close Timeline

4-6 Weeks Before Year-End

  • [ ] Review prior year audit adjustments
  • [ ] Identify recurring year-end issues to address early
  • [ ] Communicate deadlines to departments and vendors
  • [ ] Clean up vendor master file
  • [ ] Verify 1099 information is current
  • [ ] Review open POs for year-end status

2-4 Weeks Before Year-End

  • [ ] Push for approval on pending invoices
  • [ ] Begin vendor confirmation process
  • [ ] Identify significant accruals needed
  • [ ] Review prepaid expense schedules
  • [ ] Confirm cutoff procedures with team
  • [ ] Coordinate with other departments on accruals

Year-End Week

  • [ ] Intensive invoice processing
  • [ ] Clear all possible exceptions
  • [ ] Final approvals push
  • [ ] Initial accrual calculations
  • [ ] Cutoff documentation

Post Year-End (Days 1-10)

  • [ ] Complete invoice cutoff
  • [ ] Finalize accruals
  • [ ] Complete reconciliations
  • [ ] Generate year-end reports
  • [ ] Prepare audit support

Complete Year-End Checklist

Invoice Processing

Before Cutoff: - [ ] Process all invoices dated through year-end - [ ] Clear invoice backlog as much as possible - [ ] Resolve exceptions that can be resolved - [ ] Document exceptions carrying forward - [ ] Escalate pending approvals aggressively

Cutoff: - [ ] Document cutoff time and date - [ ] Separate invoices: current year vs. next year - [ ] Log late-arriving invoices with received date - [ ] Note invoices dated current year but received after close

Accruals

Identify Accruals Needed: - [ ] Goods received, invoice not received (GRNI) - [ ] Services rendered, not yet billed - [ ] Utilities (December usage) - [ ] Professional fees in progress - [ ] Commissions and bonuses - [ ] Interest expense - [ ] Property taxes - [ ] Recurring services (IT, security, etc.)

Calculate and Record: - [ ] Gather supporting data for estimates - [ ] Calculate accrual amounts - [ ] Document accrual basis - [ ] Record accrual journal entries - [ ] Retain support for auditors

Accrual Checklist:

Category Estimated Amount Support Recorded
Utilities $_____ Prior bills
Legal fees $_____ Budget/WIP
Consulting $_____ Contract
IT services $_____ Prior months
Other: _____ $_____ _____
Total $_____

Vendor and Payment Reconciliation

Vendor Statements: - [ ] Request statements from top 20 vendors - [ ] Reconcile statements to your records - [ ] Investigate and resolve discrepancies - [ ] Document reconciliation results

Payment Review: - [ ] Review outstanding checks over 90 days - [ ] Follow up on stale checks - [ ] Consider escheatment requirements - [ ] Document disposition of old items

Bank Reconciliation: - [ ] Complete year-end bank reconciliation - [ ] Clear reconciling items possible - [ ] Document outstanding items - [ ] Ensure bank rec ties to GL

Account Reconciliation

AP to GL Reconciliation: - [ ] Run AP aging as of year-end - [ ] Run AP control account from GL - [ ] Reconcile and document differences - [ ] Clear reconciling items - [ ] Obtain sign-off on reconciliation

Related Account Reconciliation: - [ ] Accrued expenses schedule - [ ] Prepaid expenses schedule - [ ] Other AP-related accounts

Tax Compliance (1099)

W-9 Verification: - [ ] Identify all 1099-reportable vendors - [ ] Verify W-9 on file for each - [ ] Request missing W-9s - [ ] Validate TIN information

1099 Data Preparation: - [ ] Run report of payments by vendor - [ ] Verify vendor classifications - [ ] Confirm reportable amounts - [ ] Check for payments that should be combined - [ ] Verify vendor addresses

1099 Checklist:

Vendor TIN Verified Payments Over Threshold Form Needed
$_____
$_____

Audit Preparation

Documentation: - [ ] Invoice register for the year - [ ] Payment register for the year - [ ] Check register with cleared status - [ ] All journal entries with support - [ ] Accrual schedules with calculations - [ ] Reconciliations (AP to GL, bank, vendor)

Audit Support Schedules: - [ ] AP aging summary and detail - [ ] Top vendor analysis - [ ] Significant/unusual transaction listing - [ ] Vendor master changes log - [ ] New vendor listing - [ ] Accrual summary with support

Confirmations: - [ ] Prepare list for auditor confirmation selection - [ ] Have vendor contact information ready - [ ] Prepare internal confirmation support

Clean-Up Tasks

Vendor Master: - [ ] Deactivate inactive vendors (no activity in 2 years) - [ ] Merge duplicate vendor records - [ ] Update vendor information as needed - [ ] Review vendors with PO Box only addresses

Open Items: - [ ] Close old POs no longer needed - [ ] Clear ancient receiving documents - [ ] Resolve aged credits and debits - [ ] Clean up suspense accounts

System: - [ ] Archive or close prior period - [ ] Set up new year periods - [ ] Update approval thresholds if needed - [ ] Review user access for appropriateness


Year-End vs. Month-End Differences

Task Month-End Year-End
Invoice cutoff Important Critical + documented
Accruals Estimate OK More precision needed
Reconciliations Required Required + auditor-ready
Vendor confirmations Optional Often required
1099 work N/A Required
Audit preparation N/A Required
Documentation Normal Extensive

Common Year-End Issues

Late-Arriving Invoices

Problem: Significant invoices arrive after close

Solution: - Set aggressive cutoff communication - Accrue for known services/receipts - Document late arrivals - Consider adjusting journal entry if material

Missing W-9s

Problem: Vendors won’t respond to W-9 requests

Solution: - Start requesting early (October) - Hold payments if necessary - Use backup withholding if required - Document good faith efforts

Aged Items

Problem: Items outstanding from early in year

Solution: - Research and resolve or write off - Document investigation - Get approval for write-offs - Avoid surprises for auditors

Accrual Accuracy

Problem: Accruals significantly differ from actuals

Solution: - Use best available data - Document methodology - True-up when actuals known - Track accuracy for improvement


Reports to Generate

For Internal Use

  • [ ] AP Aging (summary and detail)
  • [ ] AP by expense category
  • [ ] Vendor spend analysis (top 25)
  • [ ] Cash requirements forecast
  • [ ] Accrual summary
  • [ ] Open PO report

For Auditors

  • [ ] AP trial balance as of year-end
  • [ ] AP aging detail
  • [ ] Payment listing by vendor
  • [ ] Check register
  • [ ] Journal entry listing
  • [ ] Reconciliation workpapers
  • [ ] Accrual support schedules

For Tax/Compliance

  • [ ] 1099 reportable payments by vendor
  • [ ] Vendor W-9 status report
  • [ ] State-specific reporting (as required)

Key Dates and Deadlines

For Calendar Year-End

Date Activity
Dec 15 W-9 follow-up deadline
Dec 31 Fiscal year-end
Jan 5 Initial AP close complete
Jan 15 Reconciliations complete
Jan 31 1099s mailed to vendors
Feb 28 1099s filed with IRS (paper)
Mar 31 1099s filed with IRS (electronic)

Close Calendar Template

Day Activity
Day -5 Final invoice push, accrual prep
Day -2 Clear exceptions, approval escalation
Day 0 Year-end cutoff
Day +1 Cutoff documentation, initial close
Day +3 Accruals finalized
Day +5 Reconciliations complete
Day +7 Reports generated
Day +10 Audit support ready

Key Takeaways

  • Start year-end planning in November (for calendar year)
  • Communicate cutoffs early and often
  • Document everything more thoroughly than month-end
  • Address 1099 compliance proactively
  • Prepare for auditors from the start
  • Clean up vendor master and aged items
  • Accruals need better support than month-end estimates

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