Australia Tax Tools — Income Tax, Super, GST & HECS-HELP

Australia Tools

Australian income tax, superannuation, GST and HECS-HELP calculators.

Calculate Australian income tax online for free from your taxable income, using 2025-26 resident tax rates and the Medicare levy.

Project your Australian superannuation balance at retirement online for free from your salary, Super Guarantee rate and expected returns.

Calculate Australian GST online for free — add or extract the flat 10% rate from any amount.

Estimate your HECS-HELP compulsory repayment online for free from your repayment income and current ATO repayment rate.