Month-end close checklist for bookkeepers
By Tymone 'Ty' Green, MBA · Practical guide · Not tax, legal or financial advice
Month-end close is where small mistakes become big ones. A missed bank feed, an unreconciled credit card or a pile of uncategorized transactions can quietly distort every report you send.
Here is the checklist I use as a starting point, followed by where AI can genuinely help and what you still check yourself. Adapt it to your clients and your firm's procedures — this is a practical guide, not a standard.
The problem: close steps live in your head
Many bookkeepers run close from memory. That works until you're busy, sick, or handing work to someone else. Without a written list, steps get skipped and the same questions come up every month.
A checklist makes close repeatable. AI can help you build, tailor and document that checklist faster — but it can't do the reconciliation judgment for you.
The core month-end checklist
Work through these in order. Each one depends on the step before it.
- Confirm all bank and credit card feeds are connected and imported through the last day of the month.
- Categorize remaining transactions in the review queue.
- Reconcile every bank and credit card account to the statement.
- Review the undeposited funds and clearing accounts for stale items.
- Review accounts receivable aging for old or unusual balances.
- Review accounts payable aging and confirm bills are entered.
- Record recurring entries such as depreciation, prepaid amortization or accruals your client requires.
- Review payroll liabilities against payroll reports.
- Look for Uncategorized Income, Uncategorized Expense and Ask My Accountant balances.
- Run the Balance Sheet and P&L and compare to the prior month for unexpected swings.
- Write down questions for the client.
- Close the period (set a closing date) once the client confirms.
The AI solution: where it actually helps
AI is good at organizing, drafting and spotting patterns in text you give it. It is not connected to your client's books, and it shouldn't be making entries. Here's where I use it during close:
- Turning this generic checklist into a client-specific one based on a short description of the client.
- Drafting a plain-English list of client questions from your notes.
- Reviewing a pasted list of transactions (fictional or anonymized) and grouping ones that look similar.
- Writing the month-end summary email once you've confirmed the numbers.
You are helping a bookkeeper prepare a month-end close checklist for one client. Client description: [industry, number of bank accounts, credit cards, payroll yes/no, inventory yes/no]. Rules: Do not give tax or legal advice. Do not suggest journal entries with amounts. Output a numbered checklist in the order the steps should be done, with a one-line "what to check" note under each step.
What you check — the parts that stay with you
No matter how good the AI draft is, these remain your job:
- Every reconciliation ties to the actual statement balance.
- Any AI-suggested grouping of transactions is verified against source documents.
- Client questions are accurate and don't imply blame.
- The closing date is only set after the client has answered open questions.
- Your firm's own procedures override anything in a generic checklist.
A fictional example of a client question list
After close on a fictional client, my notes might turn into questions like these. AI is great at turning rough notes into polite, clear questions.
| $640 card charge, 9/14, vendor unclear | Could you tell us what this purchase was for? |
| $1,100 deposit, 9/22, no invoice match | Is this a customer payment, a loan or something else? |
| Fuel card statement missing | Could you upload the September statement? |
Keep improving the list
After every close, add one note: what slowed you down, what you forgot, what question you asked twice. Feed that back into your checklist. Over a few months it becomes a real procedure document you can hand to anyone.
AI can help you write that document. Your experience is what makes it correct.
Turning the checklist into a written procedure
A checklist tells you what to do. A procedure tells someone else how to do it. Once your checklist is stable, it's worth turning each step into a short written procedure: where to click, what report to run, what a correct result looks like and who to ask when it doesn't.
AI is very good at this part. Give it your checklist and a few rough notes for each step, and ask it to draft a one-page procedure per step in plain language. Then walk through the draft while you actually do the close and correct anything that doesn't match your software or your client.
I also like to add a "what can go wrong" line under each step. For bank reconciliations, that might be a duplicated feed transaction or a deposit recorded twice. For accounts receivable, it might be a customer payment applied to the wrong invoice. These notes come from your experience — the AI can only format them nicely.
Over a few months, you'll end up with a close binder you can hand to a new team member, use to price your services more accurately, or simply rely on during a busy season.
Frequently asked questions
- Can AI reconcile my bank accounts?
- Not in the way this guide describes. A chat AI isn't connected to your books. Reconciliation stays in your accounting software, done and reviewed by you.
- Is this checklist complete for every client?
- No. It's a starting point. Industries, payroll, inventory and your firm's policies all add steps.
- When should I set the closing date?
- After reconciliations are done and the client has answered open questions — following your firm's procedures.
- Can I share client transactions with AI to group them?
- Follow your firm's policy and client agreements. For practice, use fictional or anonymized data.
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Sample data in this guide is fictional. This guide is general education, not tax, legal or financial advice. Follow your firm's policies and client agreements.