A 12-step month-end close checklist for small businesses

A month-end close is not an accounting ritual. It is the moment you decide whether last month's numbers are something you can act on. Businesses that close reliably make decisions four to six weeks earlier than businesses that do not — and that gap compounds.

Below is the checklist our team works through for every client file. Nothing on it is exotic. The value is in doing all twelve steps, in the same order, every month.

1. Freeze the period

Set a cut-off date and stick to it. If entries keep arriving after the close, every report you issue is provisional and nobody trusts them. Lock the prior period in your accounting system the moment it is signed off.

2. Import and match all bank activity

Every account — operating, savings, credit cards, merchant accounts, loan accounts and PayPal-style wallets. A missing account is the most common reason a balance sheet quietly stops balancing to reality.

3. Categorise, then question

Code what you know. Anything ambiguous goes on a query list rather than into a "miscellaneous" bucket. A miscellaneous expense account above 2% of total costs is a sign the process broke down somewhere.

4. Reconcile to statements, to the cent

Not "close enough". A $4.11 difference is nearly always a real transaction that will grow into a real problem. Reconcile against the PDF statement, not against the feed — feeds occasionally drop items.

5. Review accounts receivable

Run an ageing report. Anything past 60 days needs an owner decision this month, not next quarter. While you are there, check for invoices marked paid where no deposit ever landed.

6. Review accounts payable

Confirm that recorded bills are real, unpaid and not duplicated. Duplicate vendor bills are the single most common finding in our clean-up projects.

7. Post payroll journals

Gross wages, employer taxes, benefit deductions and the net payment should all land in the ledger, and the payroll clearing account should return to zero. If it does not, something was paid outside the system.

8. Handle accruals and prepayments

Insurance paid annually, software billed yearly, rent paid in advance, work delivered but not yet invoiced. Without these, monthly profit swings for reasons that have nothing to do with the business.

9. Update fixed assets and depreciation

Add anything purchased above your capitalisation threshold, remove anything disposed of, and post the monthly depreciation entry.

10. Reconcile inventory, if you hold it

Compare the system quantity to a count — full or cycle. Record shrinkage as shrinkage rather than letting it hide inside cost of goods sold.

11. Review the balance sheet line by line

This is the step most people skip. Ask of every line: do I believe this number, and can I prove it with a document? Suspense and "ask my accountant" accounts should be empty at close.

12. Write the commentary

Three paragraphs: what changed, why it changed, and what to watch next month. A report without narrative gets filed unread; a report with narrative gets discussed.

How long it should take

For a business with two bank accounts and a few hundred transactions, a practised person completes this in four to six hours. The first two months take longer because the checklist exposes everything the previous process left behind.

If you would rather not own the checklist yourself, that is precisely the service we sell — see monthly bookkeeping.