Tools
GST calculator
Add GST to an amount that doesn't include it yet. See the GST and the total to the cent, with the working shown step by step.
Long service leave calculator
Work out an employee's long service leave in weeks under their state or territory's Act, and its value from ordinary weekly pay, with the rule shown.
Payroll tax calculator
Estimate a full-year employer's payroll tax in any state or territory for 2025-26 or 2026-27, with the threshold shared across states and the working shown.
Reverse GST calculator
Find the GST included in a price and the price before GST. Enter the GST-inclusive price to see both, to the cent, with the working.