A pay rise is taxed at your marginal rate, so you keep 68% of it in the 30% bracket (after Medicare). Super of 12% is paid on top.
FAQ
How much is a 4% pay rise on $85,000 after tax?
$3,400 gross – $2,312 a year or about $89 a fortnight after tax.
Sources (checked 6 November 2026): ATO individual income tax rates 2026-27; Medicare levy; low income tax offset.