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Lodging Late? Here’s What the ATO Might Do and How to Minimize Damage

Whether you’ve been too busy, confused about the process, or simply put it off, lodging your tax return late can feel stressful.


The good news? You’re not alone. Thousands of Australians miss the 31 October deadline every year. But the Australian Taxation Office (ATO) does take late lodgments seriously, and ignoring the issue can lead to penalties, interest charges, and unwanted attention.


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Here’s what happens if you lodge late, what the ATO might do, and how you can minimize the damage.



What Happens If You Lodge a Late Tax Return in Australia?



1. Failure to Lodge (FTL) Penalty


The ATO can issue a penalty for each 28-day period your return is overdue, up to a maximum of 5 periods.


  • Current penalty: $313 per 28 days, up to $1,565 for individuals.

  • Businesses may face even higher penalties.



2. General Interest Charge (GIC)


If you owe tax, the ATO adds daily interest until the debt is paid. This makes delaying more expensive the longer you wait.



3. Withholding Refunds


If you’re owed a refund, the ATO may delay processing until you catch up on overdue returns from previous years.



4. Risk of a Tax Audit

Consistently late lodgment can flag you for closer ATO scrutiny, especially if income reporting seems inconsistent.



Will the ATO Always Penalise You for a Late Lodgment?


Not necessarily. The ATO may waive or reduce penalties if:


  • You had a serious illness or family emergency.

  • You were impacted by a natural disaster.

  • You can demonstrate it was an honest mistake.


But the key is to communicate early. Ignoring ATO letters or delaying further reduces your chances of leniency.




What To Do If You’ve Missed the Deadline


1. Lodge As Soon As Possible


The longer you wait, the higher the penalties. Even if you can’t pay your tax bill immediately, lodging stops the penalties from increasing further.


2. Contact the ATO or Use a Tax Agent


If you have a valid reason, call the ATO to explain or let a registered tax agent like Precent do it for you. Tax agents often get access to extended deadlines.


3. Set Up a Payment Plan


If you can’t pay in full, the ATO may allow instalments. It’s better than ignoring the debt.


4. Prepare Supporting Documents


If you’re seeking a penalty waiver, have evidence ready, medical certificates, proof of hardship, or correspondence showing genuine confusion.



How to Avoid Late Tax Returns in the Future


  • Mark your calendar each year (individuals generally lodge by 31 October, unless you use a tax agent).

  • Use a tax agent early, agents often have extended deadlines and keep you on track.

  • Keep records updated throughout the year so preparing your return isn’t overwhelming.

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