Month-End Close Checklist for Small Businesses

Many small business owners only look closely at their books when a tax deadline is near. By then, small errors have stacked up, receipts are missing, and the numbers are too old to help you run the business. A consistent month-end close fixes that.

"Closing the books" simply means making sure everything that happened during the month is recorded correctly, then reviewing the results before moving on. For most small businesses, a good close takes a few focused hours once the routine is set. Here is a checklist you can follow.

Why Is a Month-End Close Important for a Small Business?

A regular close gives you financial statements you can actually rely on. That matters for more than taxes:

• Better decisions. You can see margins, cash flow, and trends while there is still time to act.
• Fewer surprises. Errors, duplicate charges, and missing deposits are easier to fix when they are a few weeks old.
• Lender and investor readiness. Banks often ask for current financial statements when you apply for credit.
• Smoother tax season. Clean monthly books make quarterly estimates and year-end returns faster and more accurate.
• Fraud prevention. Regular review makes unusual activity stand out.

What Steps Are in a Month-End Close Checklist?

Work through these steps in order. Each one builds on the one before it.

1. Record all transactions. Review your bank feeds and categorize every item. Enter any cash transactions, checks, and bills not yet recorded.
2. Reconcile bank accounts. Match your books to each bank statement and investigate every difference.
3. Reconcile credit cards and loans. Agree each card balance and each loan balance to the lender's statement, and split loan payments between principal and interest.
4. Clear payment processor and merchant accounts. Record gross sales, fees, and refunds for services like card processors so deposits match.
5. Review accounts receivable. Confirm all invoices were sent and review the aging report.
6. Review accounts payable. Confirm bills are entered and nothing is paid twice.
7. Reconcile payroll. Compare payroll reports to your books and confirm tax deposits.
8. Record adjusting entries. Post accruals, prepaid expenses, depreciation, and inventory changes.
9. Review sales tax. Confirm the sales tax liability in your books matches what you will report.
10. Review financial statements. Analyze the profit and loss statement and balance sheet.
11. Document and lock the period. Save support and set a closing date in your software.

It helps to put the close on your calendar. Pick a target day each month, such as the tenth business day, and block time for it the way you would for a client meeting. Bank and card statements usually arrive within the first week, which gives you what you need to start.

If you sell taxable goods or services in Georgia, coordinate the close with your sales tax filing schedule. Reconciling sales and sales tax payable before you file makes it much less likely that you will under-report or overpay, and it keeps your returns consistent with your books.

How Do You Reconcile Bank and Credit Card Accounts?

Reconciliation is the backbone of the close. For each account, compare the ending balance on the statement to the balance in your books for the same date. Then work through the differences:

• Checks or payments that have not cleared the bank yet (timing differences are normal)
• Deposits recorded in the books but not on the statement, or the reverse
• Bank fees, interest, and automatic payments you have not recorded
• Duplicate entries created by bank feeds and manual entry
• Transactions posted to the wrong account

Once the reconciled balance matches the statement, save the reconciliation report. Watch for old uncleared items. A check that has been outstanding for months may need to be voided and reissued, or followed up with the vendor.

Account	Reconcile to
Checking and savings	Monthly bank statement
Business credit cards	Card statement
Loans and lines of credit	Lender statement or amortization schedule
Payroll liabilities	Payroll provider reports and tax deposit confirmations
Sales tax payable	Sales tax reports and returns filed
Merchant clearing accounts	Processor payout reports

What Should You Check in Accounts Receivable, Accounts Payable, and Payroll?

Accounts receivable

Run an aging report. Follow up on invoices past their terms, and make sure customer payments were applied to the right invoices rather than recorded as new income. If a balance is truly uncollectible, talk with your accountant about writing it off.

Accounts payable

Compare your unpaid bills report to vendor statements. Look for duplicate bills, credits you have not applied, and bills that were paid directly from the bank without being matched to the bill in your books.

Payroll

Agree gross wages, employer taxes, and benefits to your payroll reports. Confirm that federal and Georgia withholding deposits were made on time and that payroll liability accounts are not carrying unexplained balances. Quarterly payroll returns are much easier when each month already ties out.

Which Adjusting Entries Should You Record at Month End?

Bank activity does not capture everything. Depending on whether you keep books on a cash or accrual basis, you may need entries for:

• Accrued expenses you incurred but have not been billed for yet, such as utilities or contractor work
• Prepaid expenses like annual insurance or software, spread over the months they cover
• Depreciation and amortization on equipment, vehicles, and other long-term assets
• Inventory adjustments based on counts or your inventory system
• Deferred revenue for customer payments received before work is done

Even cash-basis businesses benefit from a few of these entries, because they make monthly results more consistent and comparable.

How Do You Review Your Profit and Loss and Balance Sheet?

This is where the close pays off. Compare the month to the prior month, the same month last year, and your budget if you have one. Ask questions like:

• Did any revenue or expense line change sharply? Is there a real reason?
• Are there balances in "uncategorized," "ask my accountant," or suspense accounts?
• Are any balance sheet accounts negative when they should not be?
• Do undeposited funds still hold old payments that never reached the bank?
• Do owner draws, contributions, and loans to or from owners look right?

Finally, document your work. Save reconciliation reports, statements, and notes on unusual items in one folder per month. Then set a closing date in QuickBooks or your accounting software so earlier periods cannot be changed by accident. How long to keep these files is covered in our record retention guide.

How Heaven & Alvarez Can Help

If the monthly close keeps sliding to the bottom of your list, you are not alone. Our CPA-supervised small business accounting service handles reconciliations, adjusting entries, and monthly financial statements, with a CPA reviewing the results so problems are caught early. If your QuickBooks file needs a fresh start, our QuickBooks setup service builds a clean chart of accounts and bank connections. Call (770) 849-0078 to talk with our Norcross team.

This article is general information, not individual accounting or tax advice. Your business may need a different process; please consult a professional about your situation.

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