How we calculate

All figures on this site come from one data layer in code. The calculator, the tables and the text read from it, so a number cannot say one thing in a table and another in a sentence.

Tax rates, offsets, the Medicare levy, HELP thresholds and PAYG withholding follow the Australian Taxation Office. Award and minimum rates follow the Fair Work Commission and the Fair Work Ombudsman. Payment rates follow Services Australia. Earnings figures follow the Australian Bureau of Statistics.

More than 1,700 automated tests check the engine against worked examples published by these bodies. A change to a rate fails the build until the tests agree.

The calculator gives a yearly estimate for an Australian resident for 2026-27 unless you choose otherwise. Your payslip can differ by a few dollars, because employers round with the ATO weekly, fortnightly and monthly tables.

Figures were last checked on 9 October 2026.