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Company Tax Rate Australia: 25% or 30%? The Base Rate Entity Test

Reviewed by Patrick Sargent CA, Registered Tax Agent 25758613Published 1 August 2026 · Last reviewed 2 August 20266 min read

ATO late lodgement penalty: up to $364 per 28 days, capped at $1,820 per document · interest 11.43% p.a. compounding daily · See how to remit them →

The two-part test, both limbs, every year

The base rate entity test
LimbRuleWhere it bites
TurnoverAggregated turnover below $50 million, including connected entities and affiliates, so group structures aggregateRarely the problem for small and medium businesses
Passive incomeNo more than 80% of assessable income is base rate entity passive income: dividends and their franking credits, most interest, rent, royalties, net capital gains, and trust distributions to the extent they trace to passive incomeThe active limb. Trading companies pass easily; holding companies, landlord companies and corporate beneficiaries fail routinely
The base rate entity test

Fail either limb in a year and the rate is 30% for that year. Pass both and it is 25%. The test re-runs annually, so a big asset-sale year (a capital gain is passive) can flip a normally-25% trading company to 30% for that one year. Worth modelling before you sign the sale contract, alongside the CGT position itself.

The trap cases

The franking flow-on that reaches your personal return

Your company franks dividends at its corporate tax rate for franking purposes, which follows the base rate test. So a 25% company attaches smaller franking credits per dollar than a 30% one. Shareholders on higher marginal rates pay slightly more top-up on 25%-franked dividends, a company whose rate changed between earning and distributing can find its franking account cannot fully frank at the new rate, and rate transitions are the classic source of over-franking errors.

None of it changes the headline. Retained profit at 25% still beats 47% in your hands. It just prices the eventual extraction accurately.

Compliance edge: the rate is self-assessed in the company return each year. Companies with unlodged years have not just deferred paperwork. Nobody has run the test, franked correctly, or priced the group's true position, and the catch-up re-runs all of it.

Frequently asked questions

What is the company tax rate in Australia?
25% for base rate entities, meaning turnover under $50 million with no more than 80% passive income, and 30% for all other companies.
What is a base rate entity?
A company passing both limbs in the year: aggregated turnover below $50 million and no more than 80% of assessable income from passive sources.
What counts as base rate entity passive income?
Dividends and franking credits, interest, rent, royalties, net capital gains, and trust distributions traceable to those.
Why does my investment company pay 30%?
Its income is almost entirely passive, which fails the 80% limb. The rate follows the character of the income, not the size of the company.
Does the tax rate affect franking?
Yes. Dividends are franked at the corresponding rate, so 25% companies attach proportionally smaller credits.

General information only - not personal tax, financial or legal advice. Consider your own circumstances or speak to a registered tax agent. Remission of penalties or interest and payment plans are decisions of the ATO and outcomes can't be guaranteed.

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