A monthly close checklist for small business

Why close monthly at all

Without a close, your accounting file stays permanently provisional: numbers shift as old transactions get recoded, and no report can ever be fully trusted. A monthly close turns the ledger into settled fact, one month at a time. Errors get caught weeks after they happen instead of a year later, BAS preparation becomes a review instead of a project, and the profit and loss becomes something you can actually steer the business with, not just look at.

The checklist

• Reconcile every bank account, credit card and loan account to its closing statement balance
• Clear suspense and unallocated transactions; nothing should be parked in limbo at close
• Check clearing accounts, payroll clearing and payment gateway accounts especially, return to nil or an explainable balance
• Review aged receivables: chase overdue invoices and flag the doubtful ones
• Review aged payables: confirm what's genuinely owed and remove duplicates
• Reconcile payroll for the month: wages, PAYG withholding and super accrued versus paid
• Scan the GST coding exceptions for the month while the transactions are still fresh
• Review the profit and loss line by line against last month and budget, and chase anything that looks off
• Glance over the balance sheet: negative balances and accounts that never move are both worth a question
• Attach any missing source documents identified during the review
• Lock the period in your software and file a short close note of anything unusual

The review is the point, not the ticking

The mechanical steps only exist to make one thing possible: an actual look at the numbers each month. The profit and loss review is where an owner gets the real payoff. Revenue against last month and against budget, gross margin holding or slipping, any expense line that jumped. A question asked in week two of the month is worth ten asked at year end, because there's still time to do something about it.

The balance sheet review is shorter but catches different problems: a payroll liability growing because super's accruing but not being paid, a GST account that doesn't resemble the coming BAS, a loan balance that no longer matches the lender's statement. Most bookkeeping disasters announce themselves on the balance sheet months before they ever reach the profit and loss.

Making the routine stick

Give the close a fixed slot early each month, before the new month's demands crowd it out, and keep the checklist written down rather than living in someone's head. The first few closes run slow because they surface accumulated mess; after that the workload drops sharply because each month starts clean. If a step keeps producing the same problem, fix the upstream cause, a bank rule, a missing document habit, rather than mopping up the symptom every month.

Where NextEra fits

This checklist is essentially NextEra's managed monthly bookkeeping service written down: every client file reconciled, reviewed, reported and locked on a fixed monthly rhythm by a CPA-led team. If your own close keeps getting pushed back, the Strategic Finance Review will show what a properly closed file looks like against where yours actually sits today.