A consistent month-end close gives you financial statements you can rely on. When the books are closed the same way every month, you can see how much cash the business really has, whether it is profitable, and how this month compares with the last. Problems surface while they are still easy to fix, not months later at tax time.
One point is worth making early: categorizing transactions in your bank feed is not the same as closing the month. Bank-feed categorization is one part of recording activity. A complete close also includes reconciling accounts, reviewing balances and reports, recording adjustments, and resolving open issues before the period is locked.
1. Confirm All Transactions Are Recorded
Start by making sure every transaction for the month is in the books, not just what came through the bank feed. Check for:
- Bank and credit card activity, including items still awaiting review in the feed.
- Sales invoices issued during the month, and any cash or card sales recorded from your point-of-sale or payment processor.
- Vendor bills received for goods or services, even if they have not been paid yet (if you use accrual accounting).
- Payroll, including wages, employer taxes and benefit deductions.
- Loan activity, with each payment split between principal and interest.
- Owner transactions, such as contributions, draws or distributions, and personal expenses paid with business funds.
- Other significant activity, such as asset purchases, transfers between accounts, or refunds.
Each entry should be supported by a document such as a receipt, invoice, statement or payroll report. The IRS notes that business transactions generate supporting documents and that you must be able to substantiate the items on your return; its recordkeeping guidance for small businesses (opens in a new tab) is a useful reference.
2. Reconcile Bank and Credit Card Accounts
Compare the ending balance in your accounting software with the ending balance on each bank and credit card statement. Match every transaction, then look into anything that does not agree: outstanding checks, deposits in transit, bank fees, interest, or entries recorded twice or not at all. A reconciliation is complete only when the difference is zero and any reconciling items are explained. Reconcile every account, including savings and payment-processor accounts.
3. Review Accounts Receivable and Accounts Payable
Run aging reports for both receivables and payables. On the receivables side, follow up on overdue customer invoices, apply payments that were received but not matched to an invoice, and look for duplicate invoices. On the payables side, confirm that outstanding bills are still owed, check for bills that were paid but remain open, and watch for vendors billed twice. Balances unchanged for months often signal a recording problem.
4. Review Payroll and Related Liabilities
Compare payroll reports with what was recorded in the books. Gross wages, employer payroll taxes and benefits should appear as expenses, while withheld taxes and amounts not yet remitted should appear as liabilities. After tax deposits are made, those liability accounts should clear. If payroll is handled by an outside provider, confirm that its reports and your books agree. Our payroll administration page describes how this process typically works.
5. Review Balance Sheet Accounts
Every balance sheet account should be supported by a statement, schedule or other document. Which procedures apply depends on your accounting method and the nature of your business:
- Loans: agree balances to lender statements.
- Fixed assets: confirm that equipment and other major purchases were capitalized, where your accounting policy calls for it, and that depreciation is recorded if you prepare monthly accrual-basis statements.
- Prepaid expenses: under accrual accounting, amortize items such as annual insurance or software subscriptions over the months they cover.
- Accrued expenses: under accrual accounting, record costs incurred but not yet billed, such as utilities or contractor work.
- Sales tax payable: agree the balance to your sales tax returns and payments, if your business collects sales tax.
- Other material accounts: review clearing accounts, undeposited funds and any balances you cannot explain.
Businesses using the cash method generally record income and expenses when cash changes hands, so accruals and prepaid amortization usually do not apply in the same way. Balance sheet accounts such as loans and payroll liabilities still need review.
6. Review the Profit and Loss Statement
Read the profit and loss statement line by line, comparing it with prior months. Look for:
- Unusual or one-time transactions.
- Misclassified expenses, such as an equipment purchase recorded as supplies.
- Unexplained changes from prior months.
- Missing recurring expenses, such as rent, insurance or software.
- Duplicate entries, often caused by recording both a bill and its bank-feed payment.
- Variances from your budget, if you keep one.
7. Record Adjustments and Complete the Close
Correct the errors you found, record any adjusting entries, and run the final reports: balance sheet, profit and loss, and aging reports. Document what was reviewed, who reviewed it and when the close was completed. Then protect the closed period. Most accounting software allows you to set a closing date and require a password before anyone can change transactions in a closed month. Changes after the close should be rare, reviewed and documented.
Common Month-End Closing Mistakes
- Treating a cleared bank feed as a finished close.
- Recording a loan payment entirely as an expense instead of separating principal and interest.
- Leaving payments in undeposited funds or clearing accounts.
- Recording both a vendor bill and its payment as separate expenses.
- Booking owner draws or personal purchases as business expenses.
- Skipping credit card or payment-processor reconciliations.
- Editing prior months after reports have been shared.
Why a Consistent Close Matters
A reliable close supports better cash flow management because you know what is owed to you and what you owe. It shows whether the business is truly profitable, gives you a sound basis for budgeting, and makes tax preparation more efficient because the year-end books are already in order. Most importantly, it gives you timely, accurate numbers for decisions about pricing, hiring and growth.
This article is general information, not tax, legal or accounting advice for your specific situation.