Month-End Close Checklist for Bookkeepers: 15 Steps to Never Miss

Month-end close is the most important recurring task in bookkeeping. When it is done right — systematically, in the same order every month — errors get caught early, clients get accurate financials, and you get to move on without the nagging worry that something was missed. Here are the 15 steps that form a bulletproof month-end close process.

Data Collection and Entry (Steps 1–6)

Step 1: Download all bank and credit card statements

Log into every financial institution your client uses and download the full month's statement as CSV. Do this 2–3 business days after month-end to ensure all pending transactions have posted. Keep all files in a clearly labelled folder: Client Name / YYYY-MM / Statements.

Step 2: Import transactions into your bookkeeping software

Upload the downloaded statements into QuickBooks, Xero, or your client's platform of choice. Resolve any import errors before continuing — duplicate detection warnings and unrecognised date formats need to be fixed at this stage.

Step 3: Categorise all uncategorised transactions

Work through the uncategorised or "for review" queue in your accounting software. Apply rules where they exist. For new vendors or unusual transactions, flag for client review rather than guessing the category.

Step 4: Enter all bills and invoices

Collect any bills, invoices, or receipts your client sent during the month. Enter them into accounts payable and accounts receivable. Confirm that recurring bills (rent, insurance, subscriptions) have all arrived — a missing bill is often a sign that a payment failed.

Step 5: Record payroll

Post payroll journal entries for every pay period that fell within the month. Verify that payroll tax deposits match what was reported by the payroll processor. Payroll errors are the most time-consuming to unwind at year-end.

Step 6: Record accruals and prepaid expenses

Post any accrual entries for expenses incurred but not yet paid (e.g. interest accrued, services received but not invoiced). Record the current month's portion of prepaid expenses such as annual insurance premiums or software subscriptions.

Reconciliation (Steps 7–11)

Step 7: Reconcile all bank accounts

This is the most critical step. For each bank account: compare every transaction in your accounting software to the bank statement. Every row must either match or have an explanation. A reconciled account has zero unexplained difference between the book balance and the bank balance.

Step 8: Reconcile all credit card accounts

Treat each credit card as a separate account. Note that Amex, Discover, and Capital One use a reversed sign convention in their CSV exports (charges are positive). Reconcile to the statement closing balance, not just the transaction list.

Step 9: Reconcile accounts receivable

Run an AR ageing report. Confirm that every open invoice has a matching entry and that payments received during the month are applied correctly. Flag any invoices more than 60 days overdue for client follow-up.

Step 10: Reconcile accounts payable

Run an AP ageing report. Confirm every outstanding bill has a matching entry and that payments made during the month are recorded and applied. Check for bills that should have been paid but were missed.

Step 11: Reconcile petty cash and owner draws

For businesses with petty cash, count the physical cash and compare to the book balance. Record any owner draws or distributions that occurred during the month.

Review and Delivery (Steps 12–15)

Step 12: Review the Profit & Loss statement

Compare this month's P&L to the prior month and to the same month last year. Look for: unusually large swings in any line item (>20% change with no known explanation), revenue that looks too high or too low compared to expectations, and missing expense categories.

Step 13: Review the Balance Sheet

Check that all asset and liability balances are reasonable. Verify that loans reconcile to statements from the lender. Check that equity movements reflect the net income from the P&L plus or minus any draws or contributions.

Step 14: Clear any suspense or unclassified accounts

Never close the month with open items in a suspense account. Every transaction in suspense or "Ask My Accountant" must be resolved — either categorised correctly or flagged with a clear note for the client.

Step 15: Deliver financials and document your notes

Export the P&L and Balance Sheet as PDF, attach any reconciliation summaries, and deliver to your client with a short summary of anything unusual. Document your notes in your practice management system — next month's you will thank this month's you.

Month-End Close Timing Guide

• Day 1–2 of new month: Download all statements (wait for all transactions to post)
• Day 2–4: Data entry — transactions, bills, payroll
• Day 4–7: Bank and credit card reconciliation
• Day 7–8: AR/AP reconciliation and P&L review
• Day 8–10: Deliver to client

If you are managing more than 5 clients, stagger start dates so reconciliation work is spread across the month rather than crammed into the first two weeks.