Bonus Tax Calculator
Estimate the Australian income tax payable on a work bonus by comparing tax on your salary alone with tax on your salary plus the bonus.
Your results
Calculation breakdown
- Bonus tax
- Bonus tax = tax on (salary + bonus) − tax on salary alone
Worked example
A $5,000 bonus on top of a $70,000 salary attracts around $1,600 of tax, leaving about $3,400 after tax at an effective rate of roughly 32%.
Assumptions
- Assumes the bonus is paid within the same financial year as the salary.
- Excludes superannuation guarantee on the bonus, which depends on your agreement.
How this calculator works
Enter your annual salary and a bonus amount to see how much extra tax the bonus attracts, since it is added on top of your salary and taxed at your marginal rate. The calculator uses resident tax brackets and the Medicare levy to show your true after-tax bonus.
Rates sourced from the Australian Taxation Office for the 2026–27 financial year. Last reviewed 01/07/2026.
Frequently asked questions
Is my bonus taxed at a flat rate?
No, in Australia bonuses are added to your annual income and taxed at your marginal rate, though employers may withhold tax differently during the pay period.
Why does a bonus sometimes feel heavily taxed on my payslip?
Payroll systems often withhold tax on a bonus as if you earned that amount every pay period, which can over-withhold compared to your actual annual tax liability.
Does this include superannuation on my bonus?
No, this covers income tax only; check your employment agreement for whether superannuation guarantee applies to bonus payments.
Rates and thresholds are configured for the 2026–27 Australian financial year and should be reviewed when government settings change.