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

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

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

Check concessional cap headroom and salary sacrifice tax savings.

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

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

Estimate Div 40 and Div 43 depreciation deductions.

Chain rental cash flow through to eventual sale CGT.

Compare tax outcomes across business structures.

Check eligibility for the four small business CGT concessions.

Check eligibility and estimate your immediate deduction.