Published: 4 March 2026

Bonus Tax Calculator Australia: How Much Tax Will You Pay on Your Bonus?

Receiving a bonus at work is always exciting — whether it's an annual performance reward, a sign-on bonus for a new job, or a commission payment for hitting your targets. But when you check your payslip, you might notice a hefty chunk of that bonus has disappeared to tax. Why does this happen, and how much should you actually expect to take home?

In this guide, we'll explain exactly how bonuses are taxed in Australia for the 2025-26 financial year, what the ATO considers a bonus, and how you can use tools like our take-home pay calculator to estimate your after-tax bonus amount.

How Are Bonuses Taxed in Australia?

In Australia, bonuses are treated as part of your taxable income. This means they're subject to the same income tax rates as your regular salary. However, the way tax is withheld from bonuses can make it feel like you're paying more tax than usual.

When your employer pays you a bonus, they use the Australian Taxation Office (ATO) Pay As You Go (PAYG) withholding schedules to calculate how much tax to withhold. For one-off payments like bonuses, your employer typically uses the ATO's Schedule 5 — Method B(ii), which spreads the bonus across the entire financial year for withholding purposes. This often results in a higher withholding rate than your regular pay, but remember: this is just withholding, not the final tax you owe.

At tax time, the bonus is simply added to your total taxable income, and you'll pay tax at your marginal rate. If too much was withheld, you'll receive a refund. If too little was withheld, you'll owe additional tax.

Understanding Your Marginal Tax Rate

Because bonuses are added to your regular income, they can sometimes push you into a higher tax bracket. This is why it's important to understand Australia's progressive tax system for the 2025-26 financial year:

For example, if your annual salary is $80,000 and you receive a $10,000 bonus, your total taxable income becomes $90,000. The bonus itself will be taxed at your marginal rate — in this case, 30% plus the 2% Medicare levy, meaning approximately $3,200 in tax on that bonus (before any offsets).

Types of Bonuses and How They're Taxed

Not all bonuses are created equal, and the ATO treats different types of bonuses slightly differently:

Cash Bonuses

Performance bonuses, sign-on bonuses, retention bonuses, and commission payments paid in cash are all treated as ordinary income. They're added to your taxable wages and subject to PAYG withholding. Your employer will also need to pay superannuation on bonuses that are considered ordinary time earnings (OTE).

Non-Cash Benefits

If your employer provides a non-cash benefit as a bonus — such as a car, travel, or other perks — this may be treated as a fringe benefit. Fringe benefits are handled through the Fringe Benefits Tax (FBT) system, where your employer pays tax on the benefit rather than you paying income tax. However, the taxable value of fringe benefits can affect your income for other purposes, such as HECS-HELP repayments and the Medicare Levy Surcharge.

Genuine Redundancy Payments

If your bonus is actually part of a genuine redundancy payment, different tax rules apply. The tax-free component of a genuine redundancy payment is calculated based on your years of service, and amounts above this threshold are taxed at concessional rates. Check out our redundancy payment tax calculator if this applies to your situation.

Medicare Levy and Other Deductions on Bonuses

When you receive a bonus, it's not just income tax you need to consider. The 2% Medicare levy also applies to your bonus amount, and if you have a HECS-HELP debt, your bonus will contribute to your repayment income too.

For the 2025-26 financial year, the Medicare levy is 2% of your taxable income for most Australian residents. If you're a low-income earner (earning below approximately $27,222), you may be exempt or pay a reduced levy.

If you have a HECS-HELP debt and your total repayment income exceeds $67,000 for FY 2025-26, you'll need to make compulsory repayments. Under the new marginal repayment system introduced this year, you'll pay 15% of your income above $67,000 (up to $125,000), with higher rates applying at higher income levels. This means your bonus could increase your HECS repayment obligation.

Strategies to Reduce Tax on Your Bonus

While you can't avoid paying tax on your bonus entirely, there are legitimate strategies to minimise the tax impact:

Salary Sacrifice to Superannuation

One of the most effective ways to reduce tax on a bonus is through salary sacrifice. By arranging with your employer to contribute part or all of your bonus directly to your superannuation fund before it's taxed, you can potentially save on income tax. These contributions are taxed at just 15% within your super fund, which is likely much lower than your marginal tax rate.

However, be mindful of the concessional contributions cap, which is $30,000 for the 2025-26 financial year (including your employer's 12% super guarantee contributions). Contributions above this cap are taxed at your marginal rate plus an excess contributions charge.

Timing Your Bonus

If you have some flexibility, consider the timing of when you receive your bonus. If you're expecting a lower income next financial year (perhaps due to taking extended leave or changing to part-time work), receiving your bonus in that lower-income year could result in less overall tax.

Claiming Deductions

Work-related expenses that are directly related to earning your income can be claimed as tax deductions. While these won't reduce the tax on your bonus specifically, they will reduce your overall taxable income. Common deductions include work-related travel, home office expenses, professional development, and union fees.

How to Calculate Your After-Tax Bonus

The easiest way to estimate how much of your bonus you'll actually take home is to use our Australian tax calculators. Simply enter your total annual income including the bonus to see your overall tax position.

For example, let's say you earn $95,000 per year and receive a $5,000 bonus:

• Your new taxable income: $100,000
• Income tax (using 2025-26 rates): approximately $21,288
• Medicare levy (2%): $2,000
• Total tax: approximately $23,288
• Take-home pay: approximately $76,712

Without the bonus, your take-home pay on $95,000 would be approximately $73,412. So while the bonus was $5,000, you only take home about $3,300 extra after tax (assuming a 30% marginal rate plus Medicare levy).

Use our take-home pay calculator to get a precise calculation for your specific situation, including any HECS-HELP repayments or other factors that might apply to you.

Common Questions About Bonus Tax in Australia

Why was so much tax taken from my bonus?

Your employer withholds tax from bonuses using ATO withholding schedules that often result in higher initial withholding rates. This is to ensure enough tax is collected upfront. You'll get any overpaid tax back as a refund when you lodge your tax return, provided your total annual tax withheld exceeds your actual tax liability.

Does my employer pay super on my bonus?

Generally yes, if the bonus is considered ordinary time earnings (OTE). This includes performance bonuses and commissions. However, some types of bonuses, such as purely discretionary bonuses or redundancy payments, may not attract superannuation guarantee contributions. Check with your employer if you're unsure.

Can I claim my bonus tax back?

You can't "claim back" bonus tax specifically, but if too much tax was withheld from your bonus throughout the year, you'll receive the excess as a tax refund when you lodge your return. The ATO reconciles all your income and deductions for the year and determines your final tax position.

Are sign-on bonuses taxed differently?

No, sign-on bonuses are treated as ordinary income and taxed the same way as performance bonuses. However, if your sign-on bonus comes with a clawback clause (where you must repay it if you leave within a certain period), this can create a tax complexity. Keep records of any repayments, as you may be able to claim a tax deduction for the repaid amount in a future year.

Summary: Key Takeaways About Bonus Tax

Understanding how bonuses are taxed in Australia helps you plan your finances and avoid surprises when your bonus payment arrives. Here are the key points to remember for the 2025-26 financial year:

• Bonuses are treated as ordinary taxable income and taxed at your marginal rate
• The initial tax withheld from your bonus may be higher than your actual tax liability
• Your bonus is also subject to the 2% Medicare levy
• If you have a HECS-HELP debt, your bonus counts toward your repayment income
• Salary sacrificing part of your bonus to super can reduce your overall tax
• Any overpaid tax will be refunded when you lodge your tax return

Use our free take-home pay calculator to estimate exactly how much tax you'll pay on your bonus and what your net pay will be. For a complete understanding of Australia's income tax system, including all the current tax brackets and thresholds, visit our income tax calculator page.