Month End Close Checklist: What a Review-Ready Set of Books Looks Like

A month-end close is the set of steps that turns a month of bank activity into books you can trust: every transaction categorized, every account reconciled to its statement, payroll and sales tax tied out, and the period locked. If you do it the same way every month, it takes less time each time, and a reviewer can check it in about half an hour.

Most books go wrong in the same few places: uncategorized transactions piling up, a reconciliation that is “close enough,” and payroll or sales tax balances nobody has agreed to a filing. This guide walks through the close in the order we work, explains what each step protects you from, and ends with the checks a reviewer should make. You can print the month-end close checklist and use it as you go.

Month-end close step 1: collect before you categorize

Start with the source documents, not the bank feed. Download the month’s statements for every bank account, credit card and loan. Gather the payroll reports and any sales tax reports from your point-of-sale or store platform. The feed is useful, but the statement is the document your reconciliation has to agree to, so you want it in hand first.

Also collect the things only the owner knows: what a large or unusual payment was for, whether a transfer was personal, and which receipts are missing. A short list of questions sent on day one saves days later.

Step 2: Clean the transactions

Accept and categorize every transaction. When something is unclear, do not park it in expenses and move on. Use a suspense or “ask my accountant” account, and write down the question. The close is not finished until that account is zero or each item has an explanation next to it.

Watch for the usual traps:

• Transfers between your own accounts recorded as income or expenses.
• Owner draws, loan payments and personal items sitting in operating expenses.
• Duplicates from a feed and a manual entry for the same payment.
• Two names for one vendor, which splits your reporting.

Month-end close step 3: reconcile every account

Reconcile each bank account and credit card to the statement balance on the statement date. The difference should be zero. If it is not, find the cause before you move on. A small unexplained difference this month becomes a mystery next year.

Also reconcile loans to the lender’s statement and clear the processor accounts (Stripe, Square, PayPal). Processor accounts tend to collect old balances because fees and payouts post on different days, so check that they end the month near zero.

Step 4: Tie out payroll and sales tax

This is the step most owners skip and the one a CPA cares about most. Your books should agree with what you actually filed and paid:

• Payroll liabilities in the books should agree to the payroll tax deposits and returns. If the books say you owe more than the filings show, find out why. See Form 941 and 940 due dates for the deadlines, and our payroll tax service if you would rather hand it off.
• Sales tax payable should agree to the sales tax report and to what you remitted. Our Texas sales tax filing guide shows the due dates and penalties for one state, and the nexus thresholds by state show where else you may have to file.
• Payables and receivables should match the open bills and invoices. Review anything old.

Step 5: Review the reports

Run the profit and loss for the month and compare it with the prior month and the same month last year. Anything that moved by more than your threshold gets a one-line reason. Then look at the balance sheet for the red flags: negative cash, negative balances that should be positive, and equity that changed for no reason.

Revenue deserves a second source. If the books say you earned a figure, your sales reports or invoices should say the same thing.

Step 6: Lock the period and hand off

Set a closing date in your software so an old month cannot change by accident. Then deliver three things: the profit and loss, the balance sheet, and a reconciliation summary, plus a short note listing open questions and assumptions. A close with no note is a close the reviewer has to reverse-engineer.

What a reviewer should check in a month-end close (30 minutes)

If you are an owner or a CPA firm reviewing someone else’s close, you do not need to redo it. Check six things:

1. Reconciliation summary: balances agree and the differences are zero.
2. Suspense and uncategorized accounts: zero, or each item explained.
3. Payroll and sales tax liability: agree to the filings.
4. Profit and loss: unusual movements carry a note.
5. Closing date: set.
6. The open-questions note: read it and answer it.

If those pass, the books are review-ready. If any fail, send the close back with the specific item. That is also how a CPA firm should judge an outsourced partner; see how outsourced bookkeeping works for small CPA firms.

How long should a close take?

It depends on volume and how clean the month was. A small business with a few hundred transactions and one or two accounts is usually a short job when the books are current. It gets long when months have been skipped. If you are behind, see catch-up bookkeeping first, because closing a month on top of unreconciled earlier months just carries the errors forward.

For a rough sense of what the work costs in-house versus outsourced, try the in-house vs outsourced cost calculator or read how much small business bookkeeping should cost.

Month end close checklist template: free printable PDF

The printable month-end close checklist has the six steps as tick boxes and a sign-off block. Use it with your own books, or hand it to whoever does your bookkeeping and ask them to return it with each close. If you want RazaPro to do the close, see our bookkeeping service and pricing.

If your books are months behind, start with catch-up bookkeeping before running a monthly close.

This is general guidance, not tax or legal advice. Check anything that affects a tax return with your CPA.