ATO late lodgement penalty: up to $364 per 28 days, capped at $1,820 per document · interest 11.43% p.a. compounding daily · See how to remit them →
Each overdue Business Activity Statement attracts its own Failure to Lodge penalty - $364 per 28 days, up to $1,820 each for small entities - so four outstanding BAS can mean $7,280 in penalties before any GST is even counted. The fix is to lodge all outstanding BAS together, then deal with penalties and the GST debt as separate, negotiable problems.
Why BAS arrears snowball faster than tax returns
BAS are quarterly (or monthly), so falling one year behind means four-plus overdue documents, each separately penalised. The ATO also watches BAS closely because GST is money you collected on its behalf - and persistent BAS non-lodgement is a fast track to firmer action, including director penalty exposure where a company is involved.
Reconstructing BAS from real records
We rebuild each period from bank statements, accounting software (even half-maintained Xero or QuickBooks files), invoices and merchant reports - capturing not just GST collected but every input tax credit you're entitled to claim back on expenses. DIY catch-ups consistently under-claim credits; professional reconstruction routinely cuts the net GST position materially.
The penalty and debt strategy
Lodge everything, then move on two fronts: a remission application covering the FTL penalties across all statements (one strong, evidenced narrative beats four weak ones), and a payment plan for the net GST debt matched to your trading cashflow. The ATO's posture toward a business that has lodged everything and proposed a plan is entirely different from its posture toward silence.
Frequently asked questions
Can I lodge several BAS at once?
What if I can't pay the GST?
Do nil-activity periods still need BAS?
General information only - not personal tax, financial or legal advice. Consider your own circumstances or speak to a registered tax agent. Remission of penalties or interest and payment plans are decisions of the ATO and outcomes can't be guaranteed.

