By OptiVal Editorial Desk
Here is a number that should make you slightly uncomfortable: if you cannot tell me your exact profit for last month, right now, your books are behind. Not “a little behind.” Behind.
A month-end close checklist is the monthly routine that fixes that. It is the same discipline every decent finance team runs, scaled down to a small business: reconcile, review, accrue, lock. Done right, it takes a couple of hours and gives you financial statements you can actually trust. Done wrong, or not at all, you end up with the special kind of chaos we see every tax season: a year of unreconciled Stripe payouts and a shoebox of guesses (that is where our catch-up bookkeeping guide comes in).
This is the checklist we run through for clients on our bookkeeping plans (from $199/mo). Twelve steps, in order.
Your 12-Step Month-End Close Checklist
1. Reconcile every bank account and credit card
Import all transactions, then reconcile each account to its statement balance. Every line should be accounted for. Unreconciled differences are where errors hide, and small ones grow teeth over time.
2. Reconcile payment processors
Stripe, PayPal, Square, Moneris: the payout that lands in your bank is never the gross sale. Record the full sale, the processing fee as an expense, and the net payout. If you only book the deposit, your revenue is understated and your fees vanish.
3. Review accounts receivable
Run an aged receivables report. Anything over 30 days gets a follow-up this week. Cash you have not collected is a rumour, not revenue.
4. Review accounts payable
Confirm every bill is entered and due dates are right. Paying a supplier late costs you goodwill. Paying twice because a duplicate invoice slipped in costs you money.
5. Post payroll and check remittances
Post the payroll journal. Then confirm your source deduction remittances are on schedule: regular remitters pay by the 15th of the month following the payroll month. CRA’s late-remittance penalties start at 3% and climb to 10%, with 20% for repeat failures within a year (see the official CRA page on remittance due dates). Payroll penalties are entirely self-inflicted, and CRA collects them cheerfully.
6. Reconcile your HST/GST accounts
Your HST collected minus HST paid (input tax credits) should tie to the balance sitting in your HST payable account. If it does not, something was miscoded. Quarterly filers: the return and payment are due one month after the quarter ends, so this check doubles as your filing prep.
7. Confirm loan, line of credit and credit card balances
Record interest accrued and confirm balances to statements. Interest you do not book this month becomes a surprise next month.
8. Sort out owner transactions
Every dollar you pulled out gets classified: salary, dividend, or shareholder loan. Personal spending mixed into the business account is the single most common mess we clean up. (If you are behind on this, cleanup starts at $45/hr.)
9. Record new fixed assets
Bought equipment, a laptop, or a vehicle this month? Capitalize it properly now so your capital cost allowance is right at year-end. Do not leave a trail of asset purchases hiding in office supplies.
10. Book accruals and prepaids
Expense what belongs to this month even if the bill has not arrived (utilities, contractor invoices, interest). Spread what you paid for but have not used (insurance, software subscriptions) across the right months. This is the step that separates “roughly right” books from trustworthy ones.
11. Read the financial statements
Run the profit and loss and the balance sheet. Look for anything that jumps out: revenue that doubled for no reason, an expense category at zero that should not be, a negative bank balance on the books. If a number surprises you, investigate now, not in April.
12. Lock the period
Close the month in your accounting software so nothing gets edited or backdated. An unlocked prior month is an invitation for someone (often you, at 11 pm) to “fix” a transaction and quietly corrupt three months of reconciliations.
How Long Should a Month-End Close Take?
For a typical small business with clean processes: two to three hours. If your close takes a full week, the problem is not the checklist. It is the process underneath it: transactions coded weekly, receipts captured as they happen, bank feeds connected. The close gets fast when the month stays tidy.
The One Habit That Makes This Easy
Do not save everything for month-end. Spend 15 minutes each Friday coding the week’s transactions and capturing receipts. Then the month-end close is just review and lock, not archaeology. In our experience, clients who keep up a weekly routine cut their close time dramatically.
Mistakes That Undo a Good Close
- Editing transactions in a locked period. Lock means lock.
- Booking only the net Stripe deposit and losing the fee expense.
- Coding owner spending to “miscellaneous” and hoping the accountant sorts it out.
- Reconciling to the wrong statement date and calling the difference “immaterial.”
- Skipping the financial statement review. The close is not done until you have read the numbers.
The Bottom Line
A month-end close checklist turns your bookkeeping from a once-a-year tax chore into a monthly management tool. You will catch problems while they are small, you will know your real margins, and year-end becomes boring in the best possible way.
If the list above made you realize your books need more than a checklist, we can help. Our bookkeeping plans start at $199/month, and cleanup work starts at $45/hour. Book a free consultation and we will tell you honestly what your books need.
