aus tax tools . au

Free Australian tax calculators

Understand your tax, before you file it.

Guided calculators for individuals, landlords, and small business owners — with a step-by-step explanation of every rule applied.

Individuals

Income tax & take-home pay

See your net pay after tax, Medicare levy, and HECS/HELP.

Guide & Finder

Tax deductions by occupation

Search your occupation for deductions you can claim, commonly missed claims, and record-keeping requirements.

Simple CGT calculator

Capital gains tax on a single asset, bought and sold once.

Superannuation contributions

Check concessional cap headroom and salary sacrifice tax savings.

Property & Landlords

Negative gearing calculator

Model your rental property's cash flow and tax impact.

CGT calculator (main residence & rental history)

Model a property's full history — live in, rent, sell — and work out your exemption.

Depreciation schedule estimator

Estimate Div 40 and Div 43 depreciation deductions.

Whole-of-life property model

Chain rental cash flow through to eventual sale CGT.

Small Business

Sole trader vs company tax

Compare tax outcomes across business structures.

Small business CGT concessions

Check eligibility for the four small business CGT concessions.

Instant asset write-off

Check eligibility and estimate your immediate deduction.