Key takeaways
What this article covers, in order:
- Why does the order of a close matter so much?
- The month-end close checklist
- Steps 1 to 4: get the bank side right first
- Steps 5 to 7: debtors and creditors
- Step 8: the adjustments most owners skip
- Step 10: what to look for when you review
A month-end close is the short routine that turns a month of bank activity into numbers you can actually rely on. You bring in every transaction, reconcile every account, tidy what you owe and what you're owed, post a handful of adjustments, check the reports, and lock the month. Here's the month-end checklist we'd use for a small Australian business, in the order that saves you doing anything twice.
Why does the order of a close matter so much?
It's Tuesday 3 Nov 2026. Hannah runs a bike repair shop in Fremantle with one part-timer. She opens her Oct 2026 profit and loss first, because that's the fun bit, and it says she made $9,400. Lovely. Then on Thursday she finds three supplier invoices for parts, $2,100 in total, sitting unopened in her inbox. Then she notices a $640 customer payment that went to "Uncategorised" instead of clearing an invoice. Her real Oct 2026 profit was closer to $7,300 and her debtors list was wrong.
Nothing Hannah did was unusual. She just looked at the answer before she'd finished the sum. A close works best when each step relies only on the steps before it:
- Transactions in
- Accounts reconciled
- Debtors and creditors tidied
- Adjustments posted
- Reports reviewed
- Month locked
If you jump to step 5, anything you fix later changes the numbers you've already looked at, and you end up reviewing twice.
The month-end close checklist
Print this, stick it on the wall, or copy it into your task app. Tick each line before moving to the next.
| # | Task | You're done when |
|---|---|---|
| 1 | Bring in every transaction for every bank, card and loan account | The review list for the month is empty |
| 2 | Reconcile each bank account | The reconciled balance equals the statement closing balance to the cent |
| 3 | Reconcile each credit card | Same test, using the card statement |
| 4 | Clear suspense or uncategorised items | Balance is nil, or every item left has a note |
| 5 | Raise any invoices for work done this month | Nothing finished is still unbilled |
| 6 | Match customer payments to invoices | Aged receivables total equals receivables on the balance sheet |
| 7 | Enter all supplier bills dated this month | Aged payables total equals payables on the balance sheet |
| 8 | Post accruals, prepayments and depreciation | Journals saved with a short description |
| 9 | Check GST codes on the month's transactions | Codes look right (your BAS agent or accountant handles lodgement) |
| 10 | Review P&L, balance sheet and cash flow | Nothing looks odd you can't explain |
| 11 | Sign off and lock the period | Month is locked; any reopening is logged |
Eleven lines looks like a lot. For a small business most of them take a few minutes once the habit is set.
Steps 1 to 4: get the bank side right first
Bring everything in
Connect your bank account where you can, so transactions arrive on their own. For anything you can't connect (an old term deposit, a supplier's trade card, a second bank you rarely use), download the statement as a CSV and import it. A close where one account is "roughly right" isn't a close.
Then work through the review list. Confirm the category on each line or change it. The aim is an empty list, not a perfect one; you can come back to the odd item through suspense.
Reconcile banks, then cards
Reconcile each account against the statement closing balance for the last day of the month. If it doesn't tie, stop and find the difference before going further. Common culprits: a transaction entered twice (once from the feed, once by hand), a transfer between your own accounts recorded on one side only, or a bank fee nobody entered.
Credit cards get skipped more than anything else. The card statement period often doesn't line up with the calendar month, so reconcile to the card statement date and let the remaining few days roll into next month's reconciliation. That's fine, as long as you do it every time the same way.
Empty the suspense account
Suspense is meant to be a waiting room, not a storage unit. Anything left in it at month end should either be sorted or have a note saying what you're waiting on ("$215.00 deposit 14 Oct 2026, asked customer which invoice").
Steps 5 to 7: debtors and creditors
Here's where most small-business books drift. The bank can be perfectly reconciled while your receivables are nonsense, because a payment was coded straight to income instead of clearing the invoice. That double-counts the sale.
Two quick tests catch almost everything:
- Receivables test: the total of your aged receivables report should equal the accounts receivable line on your balance sheet. If they differ, a payment or credit note has gone to the wrong place.
- Payables test: the same check for aged payables against accounts payable.
Before you run them, raise any invoices for jobs finished this month and enter every supplier bill dated in the month, including the ones sitting in your inbox like Hannah's.
Step 8: the adjustments most owners skip
A bank account only shows cash moving. Some costs belong to a month but the cash moves in a different one. Three adjustments cover most small businesses:
- Accruals: a cost you've used but haven't been billed for yet.
- Prepayments: a cost you've paid upfront that covers several months.
- Depreciation: spreading the cost of equipment or a vehicle over its useful life.
Hannah's Oct 2026 power bill doesn't arrive until 12 Nov 2026. She knows from the meter it'll be about $412, so she accrues it:
| Account | Debit | Credit |
|---|---|---|
| Electricity | $412.00 | |
| Accrued expenses | $412.00 | |
| Total | $412.00 | $412.00 |
When the real bill arrives in Nov 2026, she reverses the accrual and enters the bill normally. If you're not sure how your accountant wants depreciation handled during the year, ask once and write the answer down; then it's a two-minute job each month.
Step 10: what to look for when you review
You don't need to analyse every number. Ask three questions:
- Does the profit look like the month felt? If Oct 2026 was flat out and the P&L shows a loss, something's missing.
- Does every balance sheet line make sense? A negative accounts payable balance, a bank account showing a balance you don't recognise, or a loan that hasn't gone down despite repayments all point to a coding error.
- How does it compare to last month? A category that jumped from $300 to $3,000 is either real (great, you'll know why) or a misposting.
Step 11: lock the month
Locking stops anyone, including you at 11pm, from accidentally changing a month you've already checked. If something genuinely needs fixing later, reopen it deliberately, fix it, and lock it again. The point is that changes become a decision, not an accident.
How long should a month-end close take?
It depends on volume and how clean things were during the month. A sole trader with one account and under a hundred transactions can often close in an hour. A business with three bank accounts, two cards and a steady flow of bills might need half a day the first few times, then less once the categories settle. If your close takes days every month, the problem is usually upstream: transactions aren't being reviewed weekly, so month end becomes a catch-up session.
How HelloBooks helps
HelloBooks brings bank-feed and CSV transactions into a review list where you confirm or change each category. On the reconcile screen, your statement lines up against your ledger with an AI match suggestion on each line, showing a confidence score and why it picked that match, so you only work through the exceptions. You can unmatch in one click if a suggestion is wrong. When the account ties, you get a reconciliation report (opening balance, cleared items, outstanding items, closing balance) that exports as PDF or CSV, and once a period is reconciled and signed off you can lock it, with any reopening logged. Credit-card accounts reconcile the same way. Aged receivables and payables reports, plus P&L, Balance Sheet and Cash Flow, are included on the Free plan. See more on our bank reconciliation software page, or compare plans on pricing.
If you'd like the review step to do more of the work, Pro (A$30/month) adds AI auto-categorisation. More on that under automated bookkeeping.
FAQs
What's the difference between a month-end close and a bank reconciliation?
A bank reconciliation proves one account matches its statement. A month-end close includes reconciling every account, then goes further: debtors, creditors, adjustments, review and locking. The reconciliation is one step inside the close.
When should I do my month-end close?
Within the first week or so of the next month, once statements are available and supplier bills have mostly arrived. Closing Oct 2026 around 5 to 7 Nov 2026 gives you complete information without letting it go stale.
Do I need to post accruals if I'm a very small business?
Not always. If your costs are steady month to month, accruals barely change the picture. They matter when a large bill straddles months or when you're comparing months closely. Your accountant can tell you whether it's worth the effort for your books.
What if I find a mistake in a month I've already locked?
Reopen the period, fix it, and lock it again. Leave a short note on the fix. That trail is useful when your accountant reviews the year.
Should my bookkeeper or BAS agent do the close?
They can, and many do. Invite them into the same books so they work from your live data rather than an export. Even if they do it, it's worth you reading the three review questions above each month.
That's the whole routine. Do it the same way every month and it stops feeling like a chore and starts feeling like knowing where you stand.
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