ATO Fight Back video

Received a large ATO tax bill or penalty? Start here

A large bill may be more than one disputed figure. This video outlines a practical order: reconstruct the tax position, examine penalties and gather evidence.

Short video · General information for Australian taxpayers

What to check first

01

Work out the correct tax position before disputing the ATO figure.

02

Review capital gains, deductions, records and prior correspondence.

03

Assess tax, penalties and interest as separate questions.

Read the video

Have you received a large ATO assessment, an old tax debt or a penalty that you do not fully understand? A dispute can involve an old assessment, capital gains, deductions that were not recognised, missing records, interest, penalties or years of correspondence with the ATO.

Before challenging an assessment, work out what the correct tax position should have been. That may involve reconstructing income, reviewing capital gains calculations, checking property costs, identifying allowable deductions and comparing that position with the ATO assessment. The underlying tax, penalty and interest can be separate issues.

If a penalty was imposed, understand why it was applied, what happened at the time and what evidence supports your circumstances. Relevant records might include property purchase and sale documents, work expense records, prior ATO letters or medical information.

Once the position is reconstructed, the next step may be an ATO objection with calculations, evidence and written grounds. ATO Fight Back can review the history, reconstruct the tax position, examine penalties and help prepare the appropriate submission. Every case is different and no outcome can be guaranteed. Start by getting the facts and evidence right.

Edited from the automatic captions for clarity. Check the video and the linked ATO guidance for context.

Explore the issue in more detail

Read our Read the ATO objection guide for the records, review rights and next steps that matter to this topic. You can also see our ATO objection help.

Official sources