A bonus is taxed as ordinary income at your marginal rate. Your employer withholds tax using the ATO’s method for back payments and bonuses, which can withhold a little more or less – the difference is settled in your tax return. Performance bonuses for ordinary hours usually attract the 12% super guarantee.
FAQ
How much tax is taken from a $10,000 bonus on $90,000?
About $3,200 (32%), leaving $6,800.
Sources (checked 6 November 2026): ATO individual income tax rates 2026-27; Medicare levy; low income tax offset. ATO Schedule 5 – Tax table for back payments, commissions, bonuses.