Income Tax Calculator Australia 2026-27

Worked examples, with the arithmetic.

The same sums the tool runs, on real figures. Every number below is computed by the tested engine from the published rates, so the prose and the tool can never disagree.

$0 to $18,200          nil
$18,201 to $45,000     15c   = $4,020.00
$45,001 to $90,000     30c   = $13,500.00
income tax                   = $17,520.00
Medicare levy, 2%            = $1,800.00
total tax                    = $19,320.00

$60,000   total tax $9,720.00   effective 16.2%
$150,000  total tax $39,570.00  effective 26.4%

Is this accurate, and how does it work?

The method is published rather than described. Nothing here is a black box, and the limits are listed as plainly as the workings.

1. 1Tax each slice at its own rate. Income is cut at the bracket thresholds and each piece is taxed at that bracket rate. Nothing is taxed at a single flat rate, which is why quoting a marginal rate as though it applied to a whole salary overstates the tax badly.
2. 2Apply the Medicare levy to taxable income. Two per cent of taxable income, with a shade-in band across the low-income thresholds rather than a switch that flips at one dollar.
3. 3Leave the offset off by default. PAYG withholding from your payslip does not include the Low Income Tax Offset, so leaving it off matches what you see during the year. Tick it to see the position at assessment instead.
4. 4Round only at the end. No intermediate step is rounded. Rounding inside the calculation is how a calculator drifts a few dollars away from a real assessment.

The 2026-27 tax brackets this runs on.

Resident rates. Income is taxed in slices, so only the part inside a bracket pays that bracket rate. The Medicare levy of 2% applies on top of these.

What this does not cover.

• It assumes you are an Australian resident for tax purposes for the full year. Part-year residents and foreign residents are taxed on different scales.
• It does not include a HELP or HECS debt, which is worked out on repayment income and can change the amount withheld noticeably.
• It does not include the Medicare levy surcharge, private health rebate, or any offset other than the low income tax offset.
• It does not model salary sacrifice, fringe benefits, deductions, or investment income. It taxes the figure you enter as though it were your whole taxable income.

Where these figures come from.

• ATO, Tax rates for Australian residents, the source gave its own last updated date as 2026-08-13. Retrieved 2026-09-02.
• ATO, Medicare levy thresholds, the source gave its own last updated date as 2026-06-30. Retrieved 2026-09-02. Not yet published for 2026-27: this is the prior year’s figure carried forward and labelled as such, never estimated. It is corrected as soon as the ATO publishes.

Every rate this site uses is listed on the Methodology page.

Common questions.

Answers for common amounts.

The figures people look up most often, each worked out in full on its own page rather than left for the tool to produce.

• Tax BracketsThe 2026-27 resident income tax brackets and the tax payable at each threshold, sourced from the ATO with the date it last changed.
• $80,000 After TaxWhat $80,000 leaves after PAYG income tax and the Medicare levy for 2026-27, with the bracket-by-bracket working and every pay cycle.