Highlights

  • The ATO is preparing to publish its 2024–25 Report of entity tax information in early October 2026.
  • For 2024–25 onwards, the transparency population includes corporate tax entities with total income of $100 million or more, as well as entities with petroleum resource rent tax payable.
  • Affected companies were sent information showing what the ATO intends to publish so they can identify errors before release.
  • As it is now 9 September 2026, companies that meet the criteria but have not received ATO correspondence should address the issue promptly.

Large companies have been urged to check the tax information the Australian Taxation Office holds for them before it is made public in this year's corporate tax transparency report.

Each year, the ATO is required to publish the Report of entity tax information, which discloses specified income tax information about large corporate entities.

In guidance issued in August 2026, the ATO outlined the timetable for the 2024–25 report and asked affected companies to review the information proposed for publication.

What the report covers

The Report of entity tax information provides specified tax information about large corporate entities.

For the 2024–25 income year onwards, the reporting population includes corporate tax entities with total income of $100 million or more, as well as entities reporting petroleum resource rent tax payable.

The information published can include:

  • the entity's name and Australian Business Number;
  • total income;
  • taxable income or net income;
  • income tax payable; and
  • petroleum resource rent tax payable, where applicable.

The 2024–25 report is expected to be published in early October 2026 and made publicly accessible through data.gov.au.

Importantly, total income is not the same as Taxable Income or profit. It is possible for an entity to report substantial total income while having significantly lower taxable income or tax payable because the measures serve different purposes.

The timeline to watch

The ATO began contacting affected companies in August 2026 with details of the information it proposed to publish.

That process gives companies an opportunity to review their information and raise potential errors before the report becomes public.

Companies meeting the inclusion criteria but that had not received correspondence were asked to contact the ATO by early September.

As of 9 September 2026, that initial checking window has effectively reached its final stages. Any company that believes it meets the criteria but has not received correspondence should therefore address the matter promptly rather than waiting until the report is published.

The report itself is expected in early October, leaving relatively little time to resolve discrepancies.

Who may be affected

Large public and private corporate entities can fall within the transparency regime.

For 2024–25 onwards, the $100 million total-income threshold is particularly important for private corporate groups because entities that previously sat outside the transparency population may now need to consider whether they are captured.

Entities with petroleum resource rent tax payable are also included under the relevant reporting requirements.

Companies should not determine whether they are covered simply by looking at accounting profit.

The statutory test refers to total income, which can be materially different from taxable income, accounting profit or tax payable.

What to consider next

Affected companies should compare the information in their ATO notification with their own tax records and lodged returns.

Particular attention should be given to:

  • total income;
  • taxable income;
  • income tax payable;
  • entity identification details; and
  • PRRT information, where relevant.

If information appears incorrect, the company should contact the ATO promptly and follow the process outlined in its notification.

Businesses that appear to satisfy the reporting threshold but have received no notification should also consider contacting the ATO now, given the proximity of publication.

Transparency now reaches more private groups

The corporate tax transparency regime covers both public and private entities that meet the relevant criteria.

For 2024–25 onwards, the $100 million total-income threshold broadens the significance of the regime for large private corporate groups.

This matters because total income is a gross reporting measure rather than a measure of profit.

A company can therefore appear in the report with substantial total income while reporting comparatively modest taxable income or income tax payable.

That does not, by itself, indicate that the company has underpaid tax.

Differences between total income, taxable income and tax payable can arise for numerous legitimate reasons, including deductions, tax losses, timing differences, tax offsets and the structure of taxable activities.

Why checking the figures matters

Once published, corporate tax transparency data can attract attention from investors, journalists, customers, employees and other stakeholders.

The report provides selected tax-return figures rather than a complete explanation of the company's tax position.

That makes accuracy particularly important.

An incorrect figure can create unnecessary questions, while even accurate figures may require context if there is a significant gap between total income and tax payable.

Companies may therefore benefit from confirming the underlying data before publication and preparing an internal explanation of material figures.

Use the checking window

The ATO's pre-publication process is designed to give affected entities an opportunity to identify potential problems before information becomes public.

Companies should use that opportunity rather than waiting until publication.

Where an entity identifies a genuine error in its tax information, the appropriate action will depend on the underlying issue and the ATO's correction process.

The important point is that the transparency report is based on reported tax information. Ensuring the underlying return and the information held by the ATO are correct is therefore the first line of defence against inaccurate public disclosure.