Month-End Close Checklist: 18 Steps in Order

A month end close checklist is the fixed sequence of reconciliations, accruals, reviews, and reports you run after each month ends. The 18 steps below close a small company's books in 3 business days.

The order is not decorative. Cash comes first because everything reconciles against it, accruals come before review because reviewing unadjusted numbers wastes the review, and reporting comes last because reporting on an open ledger produces statements you will have to retract. Run the same list every month, in the same order, with a named owner and a deadline per step.

The 18-step month end close checklist

Owners assume a small team: a bookkeeper (external or internal) and a founder or controller. Day 1 is the first business day after month end.

#	Step	Owner	Deadline
1	Stop the prior month: cut off new postings dated last month	Bookkeeper	Day 1, 10am
2	Reconcile all bank accounts	Bookkeeper	Day 1
3	Reconcile credit cards	Bookkeeper	Day 1
4	Reconcile payment processors (Stripe, PayPal, Square) including fees	Bookkeeper	Day 1
5	Post payroll journal entries, including employer taxes and benefits	Bookkeeper	Day 1
6	Issue any unbilled invoices; review AR aging, chase over-60s	Founder/Controller	Day 2, 12pm
7	Enter all vendor bills received; review AP aging	Bookkeeper	Day 2, 12pm
8	Accrue expenses incurred but not yet billed	Bookkeeper	Day 2
9	Recognize deferred revenue earned this month; defer new prepayments	Bookkeeper	Day 2
10	Amortize prepaid expenses (insurance, annual software)	Bookkeeper	Day 2
11	Post depreciation and amortization	Bookkeeper	Day 2
12	Count or adjust inventory, post COGS (if applicable)	Founder/Controller	Day 2
13	Reconcile loan balances to lender statements; split principal vs interest	Bookkeeper	Day 2
14	Run trial balance; clear wrong-sign and suspense balances	Bookkeeper	Day 3, 10am
15	Flux review: explain every account that moved more than 10% or $1,000	Founder/Controller	Day 3, 12pm
16	Lock the period in the accounting system	Bookkeeper	Day 3, 2pm
17	Produce the statement pack: P&L, balance sheet, cash flow	Founder/Controller	Day 3, 4pm
18	Distribute with commentary; file support in the close folder	Founder/Controller	Day 3, EOD

Day 1: reconcile everything that touches cash

Steps 1 to 5 are mechanical and should never slip. The cutoff (step 1) matters more than it looks: if people keep posting into the closed month, every reconciliation you finished is stale. Set a hard rule that anything discovered later goes into the current month unless it is material, and define material up front (a common threshold is 0.5% of monthly revenue).

Processor reconciliation (step 4) is where small companies leak accuracy. Stripe deposits arrive net of fees, so booking deposits as revenue understates both revenue and expenses. Gross up: record gross revenue, record fees as an expense. On $40,000 of monthly card volume at 2.9% plus 30 cents, that is roughly $1,300 of fees a month that belongs on your P&L, not silently netted away.

Day 2: accruals, the difference between books and bank register

Steps 6 to 13 turn cash records into accrual statements. The three that get skipped most often, and what skipping costs:

Expense accruals (step 8)

The contractor who bills on the 5th for last month's work belongs in last month. Without the accrual, one month looks $8,000 better and the next looks $8,000 worse, and your trend line is fiction. Keep a standing accrual list: contractors, utilities, hosting overages, legal.

Deferred revenue (step 9)

If a customer prepays $12,000 for a year, you earned $1,000 this month, not $12,000. Recognize monthly, hold the rest as a liability. This single adjustment is the most common difference between statements a lender accepts and statements they hand back, and it is the core of accrual accounting.

Prepaids and depreciation (steps 10 and 11)

A $6,000 annual insurance premium is $500 a month of expense, not one terrible month. Same logic for equipment via depreciation. Set these up once as recurring journal entries and steps 10 and 11 take five minutes each.

Day 3: review, lock, report

The flux review (step 15) is the highest-value 30 minutes of the close. Compare this month to last month and to the same month last year, and write one line for each account that moved more than your threshold. "Marketing up $4,200: conference sponsorship" takes ten seconds to write and saves three emails later. If you cannot explain a swing, that is the review working: dig before you distribute.

Lock the period (step 16) before you generate reports. An unlocked period means the statements you sent can silently diverge from the ledger, and you will not know until someone asks why the numbers changed.

For the pack itself (step 17), build the statements in dependency order: P&L first, then balance sheet, then cash flow. The full sequence with the cross-statement checks is in how to prepare financial statements. A profit and loss generator handles the formatting and comparatives so step 17 stops being an evening in a spreadsheet.

How to cut a 10-day close to 3 days

• Move work into the month. Reconcile bank accounts weekly, not monthly. Enter bills as they arrive. A weekly 20-minute habit removes a full day from the close.
• Template the recurring entries. Payroll, depreciation, prepaid amortization, and standard accruals should be memorized transactions with the amounts as the only variable.
• Set thresholds and honor them. Chasing a $14 difference for an hour is a hobby, not accounting. Investigate over threshold, book under it to a review account, and watch that account for patterns.
• Track close duration itself. Note the day and time each step actually finished. The step that slips two months in a row is where the process fix goes.

Benchmarks for context: best-in-class small companies close in 3 to 5 business days. If your close takes more than 10, the cause is almost always missing cutoffs and manual statement assembly, not team effort. The standards for what the finished pack should contain are covered in small business financial statements.

Where AIStatements fits

Steps 17 and 18 are the part our financial statement generator compresses: upload your accounting export after the lock, and in about 60 seconds you get the formatted statement pack with written flux commentary ready to distribute. That reporting step is exactly what our month-end close software is built to automate, so the last day of the close ends with a finished deliverable rather than an evening of reformatting. It is software that formats and analyzes your data, not accounting or tax advice, so have a professional review anything you file.