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Overdue Company Tax Returns and BAS: The Catch-Up Guide

Reviewed by Patrick Sargent CA, Registered Tax Agent 25758613Published 2 August 2026 · Last reviewed 2 August 20267 min read

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 →

What the backlog costs per document

Company exposures from unlodged returns and BAS
ExposureCompany version
Failure to lodge penaltiesOne penalty unit of $364 for each 28 days late, capped at $1,820 for a small entity, $3,640 medium and $9,100 large - per return and per BAS. A year unlodged is typically five documents and five caps
InterestGeneral interest charge accrues daily on unpaid amounts, backdated to each due date
EstimatesThe ATO can raise default assessments and issue director penalty notices on estimated liabilities - inflated numbers, personalised
Lockdown DPN exposureEvery BAS still unreported past three months, and every overdue super guarantee statement, sits in the lockdown column: personal liability liquidation cannot remit. Each late lodgment moves nothing backward but stops the column growing
Blocked exitsNo payment plan, no safe harbour, no restructuring, and weakened remission. The rescue doors all check the lodgment record first
ASIC driftAnnual reviews, solvency resolutions and registered addresses out of sync - and the registered address is where director penalty notices get posted
Company exposures from unlodged returns and BAS

The company catch-up sequence

Six steps, in this order

  1. Pull the full position

    Outstanding lodgments, account balances and any assessments already raised, in one pass through the agent portal. Fix the ASIC registered address the same day.

  2. Triage by director penalty risk

    Unlodged BAS and super guarantee statements first, because they run the lockdown clock. Income tax returns follow.

  3. Reconstruct and lodge oldest first

    Bank data, payroll records and supplier files rebuild most books. Rebuild the franking account, the Division 7A loan ledger and carried-forward losses as you go, because every later fix assumes them.

  4. Replace any estimates

    Real returns lodged against default assessments shrink the debt the whole recovery ladder is chasing.

  5. Attack the inflated layer

    Seek remission of penalties and interest on the back of the voluntary disclosure. Multi-year corporate catch-ups are the strongest fact pattern the remission system sees.

  6. Then choose the debt path

    A payment plan, a restructure, or an orderly close - a decision that only exists because steps one to five happened.

Penalty unit and caps checked August 2026

Frequently asked questions

What happens if a company does not lodge tax returns?
Penalties at entity multipliers per document, interest, and estimated assessments. Unreported BAS and super periods also convert to lockdown director penalty territory, making directors personally liable with no liquidation escape.
Should a company lodge a BAS it cannot pay?
Yes. Lodging on time, or as soon as possible, is what keeps director penalties in the escapable non-lockdown column and unlocks payment plans and restructuring.
How far back does a company have to lodge?
Every outstanding year and quarter. Obligations do not lapse, and the ATO's estimates for missing periods are almost always worse than the real figures.
Can penalties on a big corporate backlog be reduced?
Routinely. A voluntary multi-year catch-up is prime remission material for both the failure to lodge penalties and much of the interest.
What about a company that stopped trading years ago?
The obligations continued. Lodge the outstanding periods, which are mostly nil, then deregister properly. Abandonment stacks penalties on a shell while leaving director exposure alive.

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.

Years behind? It ends this week.

TaxNudge specialises in multi-year company catch-ups: reconstruct, lodge, remit, then negotiate. Book a free assessment and we will scope the whole backlog in one pass.

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