A practical BAS lodgement checklist for Australian practices
A repeatable BAS checklist that keeps your practice accurate and on time across every reporting period.
Business Activity Statements are the heartbeat of most Australian bookkeeping and accounting practices. When you handle dozens or hundreds of them across overlapping reporting periods, consistency matters far more than memory. A documented checklist turns BAS from a recurring scramble into a predictable, reviewable process that any team member can follow and any reviewer can trust. The goal is simple: the same disciplined steps run every period, whether it is your quietest quarter or your busiest.
Before you start each BAS
Preparation work prevents most of the errors that surface at review. Build a standard opening routine that every team member follows the same way, so the quality of a statement does not depend on who happened to prepare it.
- Confirm the reporting period and cycle for the client, whether monthly, quarterly or instalment-based, and check it matches their registration.
- Check the bank feeds are reconciled to the end of the period with no unallocated or unpresented transactions left hanging.
- Review GST coding on unusual or one-off transactions, including imports, capital purchases, government charges and mixed-supply items that are easy to miscode.
- Verify payroll figures tie back to your payroll records where PAYG withholding is reported on the statement.
Working through the statement
The body of the work is about agreement between sources. Reconcile rather than assume, and document anything that needed a judgement call so the reasoning is visible later.
- Match GST collected and paid to the activity and tax reports your software produces, and investigate any difference.
- Reconcile PAYG withholding to payroll summaries for the same period before finalising.
- Compare the figures against the prior comparable period and document the reason for any material variance.
- Check for transactions sitting in suspense, clearing or rounding accounts that should have been allocated.
Review and sign-off
A second set of eyes catches what the preparer cannot. Even a light senior review reduces lodgement errors and protects the client relationship. Record who prepared the statement, who reviewed it, and when approval was given, so the trail is clear if a query arises months later. A short, consistent review step is far cheaper than an amendment and an awkward conversation with the client.
After lodgement
The job is not finished when the statement is sent. Closing the loop properly is what keeps clients informed and your records clean.
- Confirm the lodgement receipt is saved against the client record where it can be found again.
- Communicate the payment amount and due date to the client clearly and in writing.
- Set the next period's job immediately so nothing falls through the gaps between cycles.
Tools like Finye let you build this checklist once as a template, attach it to a recurring BAS job, and have it appear automatically each period with the right due date and reminders already in place. That means the same disciplined process runs every time without anyone having to rebuild it, and a manager can see at a glance which statements are prepared, reviewed or still outstanding.
Takeaway: standardise your BAS process as a written checklist tied to recurring jobs, so accuracy comes from a repeatable system rather than from individual recall under deadline pressure.