Big business, ownership and the public return

The ATO report published 1 October 2026 covers 4,299 entities with at least A$100 million total income in the 2024–25 population. The workbook's reporting cutoff was 1 August 2026. The matching current-year rows sum to A$87,488,527,889 income tax payable, reproducing the ATO's rounded A$87.5 billion headline.

This is a tax-return measure. It is not all corporate tax, an audited cash-payment ledger or a complete consolidated set of multinational economic groups. The workbook also contains 116 late returns from earlier years. They are preserved but excluded from this ranking. ATO interpretation (opens in a new tab), original entity data (opens in a new tab).

The top 25 represent 44.4% of the disclosed current-year income tax payable, calculated within this dataset. They are reporting entities, not 25 independent economic groups. BHP Group and BHP Iron Ore (Jimblebar), for example, remain separate published rows; combining or comparing corporate groups requires an ownership and tax-consolidation map. Exact values, ABNs, years and workbook row locations are retained in corporate-summary.json and corporate-entities.json.

The ATO says foreign-owned entities account for 39.0% of tax payable, Australian public entities 48.1%, and Australian private entities 12.9% within its disclosure population. “Australian public” here is a corporate ownership classification, not a synonym for government-owned. The Mining, Energy and Water segment contributes A$35.9 billion, or 41.1%, down from the preceding year. ATO report (opens in a new tab).

The original workbook explains that legislation does not allow publication of amounts of zero or less, so those cells are blank. The extract preserves them as null; it does not replace them with invented numerical zeros. There are 1,149 blank tax-payable fields among the 4,299 current-year records, about 26.7%, consistent with the ATO's approximate 27% headline.

The ATO identifies accounting losses, tax losses, use of prior losses and offsets among the reasons for nil payable. Its disclosure does not contain every input needed to judge a particular entity's position. A fair challenge is “what explains this entity's taxable-income and tax-payable position over time?” rather than assuming revenue multiplied by 30% is unpaid tax. ATO explanation of nil payable (opens in a new tab).

An export project can create several public and private flows:

This is an analytical framework, not a numerical finding that all projects incur every flow. Royalty schedules, project licences, company disclosures and fiscal classifications establish what applies to each case.

Royalties and PRRT answer different questions

Across all general government, ABS records A$23.043 billion royalty income in 2024–25. Commonwealth PRRT is a tax and appears in a different classification. Western Australia's resource statistics report A$10.6 billion royalties and related revenues in calendar 2025, with iron ore contributing about A$8.7 billion. This calendar/state measure is not directly additive to the earlier financial-year national figure. ABS GFS (opens in a new tab), WA economic indicators (opens in a new tab).

The ATO workbook contains 21 PRRT payers with A$1,872,820,121 payable for 2024–25. Its PRRT explanation describes the LNG deductions cap: when applicable, it can leave taxable profit equal to 10% of assessable receipts where deductions might otherwise eliminate that year's liability. Conditions and exceptions apply. This is not a 10% tax rate on all gas sales. ATO PRRT report (opens in a new tab).

The separate A$1.416 billion PRRT cash receipts in the 2025–26 FBO concern a later year and different recognition basis. They do not contradict the earlier payable dataset. A full reconciliation needs assessment, instalment, refund and settlement timing.

Company disclosures provide more detail with their own boundaries

Sources: BHP FY2025 Economic Contribution Report, page 3 (opens in a new tab), Rio Tinto 26 March 2026 disclosure (opens in a new tab), Woodside tax disclosure (opens in a new tab). These are issuer statements, not independently reconstructed public accounts. BHP now also publishes FY2026 headline global payments to governments of US$12.4 billion; that does not replace the explicitly historical Australian example above. BHP current report page (opens in a new tab).

Do not add these reported government payments to ATO company taxes or ABS royalties: those totals overlap. Do not add employer-remitted employee tax to taxes borne by the company. Do not sum joint-venture operator figures at 100% with each partner's ownership share. Preserve the report's basis before calculating a public-return percentage.

Ausgrid: its board page, checked 3 October 2026, reports NSW Government ownership via ERICA at 49.6%, AustralianSuper 8.4%, IFM Investors 25.2%, and APG Asset Management Group 16.8%. This shows public ownership and institutional investment coexisting in one asset. The named manager is not automatically the ultimate beneficial owner of every dollar it manages. Ausgrid ownership (opens in a new tab).

Port of Melbourne: its shareholder page names QIC, Australia's Future Fund, Global Infrastructure Partners, and OMERS. It identifies GIP as part of BlackRock and OMERS as an Ontario pension plan. These descriptions distinguish a domestic sovereign fund, investment managers and pension capital. The page does not establish a complete end-investor register or percentages for each beneficial owner. Port shareholder disclosures (opens in a new tab).

Transgrid: its 2025 Annual Sustainability Report's ownership chart lists La Caisse 22.505%, ADIA 19.99%, Spark Infrastructure 15.01%, UTA Power Networks Trust 12.505%, GIC 10%, OMERS 9.995%, and Future Fund 9.995%. This is a dated 2025 disclosure, not a claim that every interest remained unchanged at collection. It supplies concrete starting points for government-related overseas and domestic capital in electricity infrastructure. Transgrid report, page 8 (opens in a new tab).

Government ownership of an investor and political direction of every investment are separate claims. For example, Temasek's own governance disclosure says it is wholly owned by Singapore's Minister for Finance and that its investment decisions are commercially managed. That statement explains its governance position; it is not proof about a particular Australian asset. Temasek governance (opens in a new tab).

For each company or asset, collect legal entity and ABN; tax-consolidated group; ownership percentages and effective dates; Australian versus worldwide activity; customers and export exposure; taxes borne; taxes collected for others; royalties; public contracts and grants; debt and public guarantees; distributions; public obligations; and source-specific reporting periods.

The ranking identifies good investigation candidates across resources, banking, retail, telecommunications and transport. It does not rank total economic value, compliance quality or political influence. AEC donations and lobbying evidence belong in connected but separate records. A donation is not government revenue and its existence alone does not establish that a contract, tax result or decision was purchased.