What happens if I can't pay my tax bill in Australia?
Short answer
The general interest charge is added automatically and compounds daily, and the ATO must by law use later refunds and credits to reduce the debt. If you owe A$200,000 or less you can set up a payment plan yourself in ATO online services. The ATO says firmer action is more likely when you refuse to engage, so contact it before the due date. Lodge on time regardless.
Verified · 9 cited sources
Lodging and paying are two different obligations, and the penalties are separate. Lodge the return by the due date even if you know you cannot pay the assessment — a failure to lodge on time penalty is charged in its own right, and you cannot negotiate a debt the ATO has not yet worked out. The ATO's own instruction is to contact it before the due date, while the amount is still manageable, rather than after the reminders start.
Interest is automatic. The general interest charge applies to any amount unpaid after the date it should have been paid, is calculated on a daily compounding basis, and the rate is reviewed quarterly. It keeps running even while you are on a payment plan, which is why the ATO says it will guide you to pay in the shortest time rather than the smallest instalment. One change matters here: the ATO states that general interest charge incurred on or after 1 July 2025 cannot be claimed as a deduction, and says the same separately about shortfall interest charge — the interest applied instead of GIC when an amended assessment increases your liability.
For a debt of A$200,000 or less you can set the plan up without speaking to anyone. In ATO online services select Tax, then Payments, then Payment plans; the self-help phone line does the same job if you have your TFN and the exact amount owing. Income tax and activity statement debts need separate plans, and you can only run one plan at a time through the self-service channels. The ATO's online payment plan estimator will tell you the upfront amount and instalment it expects before you commit.
You have to phone the lodge and pay enquiry line on 13 11 42 if you owe A$200,000 or more, need a repayment timeframe beyond two years, need additional support because of significant financial hardship, are insolvent, bankrupt or in dispute, need to renegotiate an existing plan, or could not get a plan through the online or self-help channels. Two further situations do not automatically force a call but will draw extra questions when you make one: having defaulted on or cancelled two or more plans in the past 12 months, and having been warned about firmer or legal action in the past six months. Expect to be asked why you cannot pay by the due date, and for your income, expenses, assets, account balances and any lines of credit. The ATO points people at Moneysmart's budget planner to prepare for that call.
Two things happen quietly while a debt is outstanding. The ATO is required by law to offset refunds and credits against what you owe, including debts it has put on hold, and it can pass a refund to Services Australia where you have an overdue child support payment or a family tax benefit debt. And if you do not respond, the ATO may send a pre-referral warning letter first; ignore that and the debt can be referred to the external collection agency recoveriescorp, which contacts individuals on 1300 323 495. If you are unsure a contact is genuine, do not reply — phone that number yourself.
The ATO says it is more likely to start firmer action where you refuse to engage, ignore reminders, repeatedly default on agreed plans, or let GST, PAYG withholding and employee super go unpaid. Firmer action can include a garnishee notice served on your employer or your bank, a director penalty notice making a company director personally liable for PAYG withholding, GST and super guarantee charge, and disclosure of overdue business tax debts to credit reporting bureaus — though the ATO says debts will not be reported where you have already engaged with it. Other actions it lists include departure prohibition orders that stop you leaving Australia until the debt is paid or a satisfactory arrangement is made. Beyond that sits legal action — a statement of claim in your state or territory court, then a bankruptcy notice giving you 21 days to pay or agree a payment plan. You can ask for interest to be remitted where there are extenuating circumstances, and free financial counselling is available on the National Debt Helpline, 1800 007 007.
- Lodge on time even if you cannot pay — the late-lodgement penalty is separate
- General interest charge compounds daily; GIC and SIC incurred from 1 July 2025 are not deductible
- A$200,000 or less: set up a payment plan yourself in ATO online services
- A$200,000 or more, or needing more than two years: phone 13 11 42
- Refunds and credits are offset against the debt by law, including debts on hold
- Free financial counselling: National Debt Helpline, 1800 007 007
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Sources & provenance
Facts verified
- 1.If you don't pay OfficialAustralian Taxation OfficeUsed for: Instruction to make contact before the due date, automatic general interest charge, offsetting of refunds and credits including debts on hold and Services Australia debts, and referral to recoveriescorp on 1300 323 495
- 2.Payment plans OfficialAustralian Taxation OfficeUsed for: What a payment plan is, that interest continues to accrue on a plan, that income tax and activity statement debts need separate plans, and the online payment plan estimator
- 3.Setting up a payment plan OfficialAustralian Taxation OfficeUsed for: The A$200,000 self-service threshold, the Tax then Payments then Payment plans path, when you must phone instead, and the financial information the ATO asks for
- 4.General interest charge OfficialAustralian Taxation OfficeUsed for: When GIC applies, daily compounding, quarterly rate reviews, the end of deductibility for GIC incurred on or after 1 July 2025, and remission where there are extenuating circumstances
- 5.Shortfall interest charge OfficialAustralian Taxation OfficeUsed for: That shortfall interest charge applies instead of GIC where an amended assessment increases your liability, and that SIC incurred on or after 1 July 2025 cannot be claimed as a deduction
- 6.Firmer action we may take OfficialAustralian Taxation OfficeUsed for: Garnishee notices to employers and banks, director penalty notices for PAYG withholding, GST and super guarantee charge, disclosure of business tax debts to credit reporting bureaus, and departure prohibition orders
- 7.Legal action we may take OfficialAustralian Taxation OfficeUsed for: The statement of claim step and the bankruptcy notice giving 21 days to pay or agree a payment plan
- 8.Contact us — lodge and pay enquiries OfficialAustralian Taxation OfficeUsed for: The lodge and pay enquiry line on 13 11 42 and its operating hours
- 9.Financial counselling RegulatorMoneysmart, ASICUsed for: National Debt Helpline on 1800 007 007 as a free and confidential service, and the warning that fee-charging firms are not financial counsellors
Not a source — AI-assisted analysis on this page
- AI-assisted analysis — lodge first, keep the plan short — Treating lodgement and payment as two separate obligations to be handled in that order, and treating daily compounding interest as the reason to choose the shortest plan you can afford rather than the smallest instalment, is our reading across the ATO pages cited. So is the distinction we draw between the situations that force a phone call and the ones that merely draw extra questions. The ATO sets out the penalties, the interest mechanics and the contact triggers, but does not present them as a sequence or give that advice.
Interest mechanics, the A$200,000 self-service threshold, the situations that require a phone call, offsetting, the pre-referral warning letter, firmer action and legal action are taken directly from the ATO pages cited, with the deductibility change sourced separately from the ATO's general interest charge and shortfall interest charge pages, and the National Debt Helpline number from ASIC's Moneysmart. The framing — lodge first, contact before the due date, treat interest as the reason to keep the plan short — is our own reasoning and is flagged on the page. The general interest charge rate is reset quarterly, the deductibility change applies to charges incurred on or after 1 July 2025, and self-service thresholds are administrative settings the ATO can revise. Confirm the current position with the ATO on 13 11 42 before relying on any figure here.
Facts on this page are taken from the sources listed above — Australian government departments, regulators, statutory bodies and official statistical releases. Comparisons, judgements and "which option suits whom" conclusions are AI-assisted analysis written over those sources; they are marked in the text and listed as an AI-analysis entry in the sources, not attributed to any authority. Rates, thresholds, fees and processing times change, often at the start of a financial year; figures are current as at the review date shown and should be confirmed with the responsible agency before you rely on them for money or legal decisions.