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Bonus Tax Calculator Australia
Estimate the annual tax impact of bonus or commission income in Australia.
Current Australian tax year
No account needed
Plain-English assumptions
Bonus tax calculator
Estimate a bonus after tax
Salary-only take-home
$74,080
With bonus take-home
$80,880
Estimated net bonus
$6,800
Bonus retained
68%
Where the bonus goes
Estimated retained
$6,800
68% of gross bonus
Estimated tax and repayments
$3,200
32% of gross bonus
Check the annual bonus effect
Payroll withholding and final bonus tax are not always the same
A bonus may look heavily taxed on one payslip because payroll withholding methods are designed for irregular payments. Your final income-tax position is based on total annual taxable income and the other details in your return.
Base scenario
Estimated annual outcome before the bonus or commission.
Bonus scenario
Estimated annual outcome after adding the irregular payment.
Tax difference
The change between the two annual tax estimates.
Net bonus
The bonus amount less the estimated change in supported deductions.
Worked example
Compare salary alone with salary plus bonus
For a $90,000 salary and $10,000 bonus, compare the estimated annual tax at $90,000 with the estimate at $100,000. The difference is a clearer planning estimate of the bonus tax effect than applying one flat percentage. Actual withholding and the eventual return can still differ.
Check before deciding
- Include all expected bonuses and commissions in the annual comparison.
- Do not assume the withholding on one payslip is your final tax rate.
- Check whether super is payable on the payment under your arrangement.
- Keep part of an uncertain bonus aside until the final tax position is known.
How to use this page
Bonuses are often withheld differently in payroll, but annual tax still depends on total taxable income.
Enter base salary and bonus amount to compare annual take-home pay with and without the bonus.
When this calculator is useful
checking bonus tax before you accept a job offer
turning a big annual number into weekly, fortnightly and monthly cashflow
spotting whether HELP debt, super wording or deductions may change the result
What this estimate includes
Australian financial-year tax brackets
Standard Medicare levy assumption
HELP repayment toggle
Employer super shown separately
Annual, monthly, fortnightly and weekly views
Plain-English assumptions and trace
Before you rely on the number
- Start with your gross pay before tax.
- Check whether the number includes employer super.
- Switch on HELP only if compulsory study debt repayments apply.
- Compare the annual result with weekly, fortnightly and monthly views.
- Use the methodology page if you want to see the calculation order.
Frequently asked questions
Is bonus withholding the same as final tax?
Not always. Payroll withholding can differ from your final annual tax outcome.
Does this calculate commissions?
Yes for broad annual planning. Enter the expected commission as the bonus amount to compare salary-only income with salary plus commission.