Guides
Bookkeeper Reconciliation Checklist: Month-End Close Without the Chaos
Bookkeeper reconciliation checklist month end: a US close sequence for bank, loan, payroll, 1099, and sales tax payable accounts that ends at a traceable $0.00.
What to take away
- This bookkeeping month end close checklist is a sequence that ends only when third-party statements tie to the ledger.
- The close covers bank, credit card, loan, payroll, 1099 vendor, and state sales tax payable accounts.
- Every reconciled account needs a visible check, usually a $0.00 difference between the statement and the ledger.
- Stop and hand the file to a CPA when an account stays unreconciled across two consecutive closes or when a tax-basis change sits outside bookkeeping authority.
Use this bookkeeper reconciliation checklist month end as a fixed sequence, not a list of reports to run. The close runs in one order: imports, posting, accruals, reconciliation, 1099 review, archive.
Conditions before the first entry
- The prior month has a signed-off bank reconciliation for every account.
- Opening bank statement balances equal the prior ending ledger balances.
- Bank, credit card, loan, and merchant processor statements are downloaded through the last business day.
- State sales tax account and payroll provider reports are open for the same period.
Keep supporting documents as IRS recordkeeping guidance requires, including statements, receipts, and payroll registers.
Pre-Close Conditions
- Prior month bank reconciliation signed off
- Opening bank balances equal prior ledger
- Statements downloaded through last business day
- Sales tax and payroll reports open
This sequence assumes US bookkeeping practice, where accrual adjustments and 1099 tracking are part of the close.
The month-end sequence
- Import every bank, credit card, loan, and merchant processor transaction through the last business day of the month.
- Post missing sales invoices, vendor bills, and payroll entries that occurred during the month.
- Record accrual adjustments for payroll earned but not yet paid, credit card fees not yet posted, and sales tax collected but not yet remitted. These are the bookkeeper closing entries that move income and expense into the right month.
- Reconcile each balance sheet account against a third-party statement or a client-approved schedule.
- Review the 1099 vendor list and confirm no W-2 employee was paid as a contractor.
- Close the books with a saved reconciliation archive for every account.
This month end reconciliation for bookkeepers is the same sequence every month, not a different report for each client.
Month-End Close Sequence
- Import all bank and card transactions
- Post missing invoices, bills, payroll
- Record accrual adjustments
- Reconcile each balance sheet account
- Review 1099 vendor list
- Close books with saved archive
Step 4 is where the month-end close usually breaks. The step that decides the result is the bank account that still shows a difference.
The step that decides the result
The deciding step is the bank account reconciliation with a nonzero difference. If the difference is not resolved to $0.00, no later step matters. Compare the bank statement ending balance with the reconciled ledger ending balance. The two numbers must be identical to the cent.
Difference Must Reach Zero
$0.00 | required bank reconciliation difference
Compare statement ending balance to reconciled ledger balance
A $75.00 difference can hide a missing payment or duplicate deposit
Treat every unmatched item as an open item
A $75.00 difference can hide a missing vendor payment or a duplicated deposit. Treat every unmatched item as an open item until it has a bank, loan, or vendor source.
Checking each step came out right
| Account | Visible check |
|---|---|
| Bank | Statement ending balance equals reconciled ledger balance; difference is $0.00 |
| Credit card | Card statement balance equals ledger liability; every charge has a vendor and account |
| Loans | Lender statement principal balance matches the loan liability schedule |
| Sales tax payable | Ledger matches the state sales tax return liability for the period |
| Payroll liabilities | Gross wages, employee taxes, and employer taxes tie to the payroll provider report |
For the daily work that feeds this monthly table, the Bookkeeping firm SOPs lists the transaction-level checks that stop a pileup before close day.
What to do when a step goes wrong
The most common failure is a transaction recorded in the wrong month. It stays invisible until a bank or vendor statement arrives. Open the prior reconciliation and compare the statement beginning balance with the prior ending balance. Run a cutoff search for transactions posted in the new month that belong to the prior month. If a duplicate deposit appears, reverse the duplicate and note the source. If a vendor payment is missing from the ledger, record the payment against the correct payable account, not against an expense code.
Fixing a Failed Step
Is the transaction in the wrong month?
Run cutoff search and move entry
Check for duplicate deposit or missing payment
A clearing entry that never clears by the next statement creates a bigger unreconciled balance. Do not force a reconciliation that way.
That recovery keeps the client's ledger tied to the bank source instead of hiding the difference.
If the same account fails the same check two months in a row, use the Inspecting bookkeeping firm service quality checks to separate a process gap from a training gap.
Example: closing a small retail client
A client has one checking account, one credit card, and a Shopify payout account. Start with checking. Import February transactions. The bank ending balance is $18,402.17. The ledger checking ending balance before reconciliation is $18,327.17. The difference is $75.00. Trace the difference to a merchant fee from January that posted February 2 but was booked as a February 1 fee. Move the fee to January with a cutoff adjustment. The checking difference becomes $0.00. Reconcile the credit card and Shopify payout the same way, then review sales tax collected in February against the state return.
When the example client wants this service repeated monthly, the bookkeeping firm service menu guide helps name the base close and the add-on sales tax review.
When to stop and hand it to a professional
Stop the close and hand the file to a CPA or enrolled agent when a balance sheet account remains unreconciled after two consecutive month-end closes. Stop when a client asks you to reclassify a worker from W-2 employee to 1099 contractor without a signed state or IRS determination. Stop when the sales tax payable account does not match the filed state return by more than the state's rounding threshold and the client cannot produce the filing confirmation.
For worker status, IRS guidance on independent contractor vs employee uses a common-law control test before any reclassification. That is not a bookkeeping adjustment to make on a client's say-so.
For packaging this close as a monthly retainer without taking on tax positions, see Bookkeeping firm bundles and pricing tiers.
Common questions
What is a bookkeeper reconciliation checklist month end? It is a fixed sequence that closes bank, card, loan, payroll, 1099, and state sales tax payable accounts to third-party records. When is a month-end close actually finished? When every bank and card account shows a $0.00 difference between the statement ending balance and the reconciled ledger, and all other balance sheet accounts tie to a statement or client schedule. Can a bookkeeper record accrual adjustments without a CPA? Yes, routine accruals like payroll earned but unpaid or credit card fees not posted are bookkeeping entries. Changes to tax basis or worker classification belong with a CPA or enrolled agent. What is the most common hidden failure at month end? A payment or fee recorded in the wrong month stays hidden until a bank or vendor statement arrives, then creates a difference that must be traced before closing.
