Methodology
How we calculate Australian income tax, Medicare levy, HECS/HELP, and superannuation for 2026-27.
All rates, thresholds, and offsets below are sourced from the ATO and Australian Treasury as legislated for the 2026-27 financial year (1 July 2026 – 30 June 2027). Estimated figures are clearly marked.
Primary sources
Calculation steps
Step 1 — Taxable income
Taxable income = Gross salary − Work deductions − Salary sacrifice
Salary sacrifice reduces both taxable income and the gross salary base from which super is calculated (salary sacrifice contributions go into super separately).
Step 2 — Income tax (before offsets)
Australian residents (2026-27):
Non-residents (2026-27):
Working holiday makers (visa 417 & 462):
Step 3 — Low Income Tax Offset (LITO)
Applies to Australian residents only. Not available to non-residents or working holiday makers.
Net income tax = max(0, income tax − LITO)
Step 4 — Medicare Levy
Applies to Australian residents only. Working holiday makers and non-residents do not pay the Medicare Levy.
Shade-in thresholds are 2026-27 estimates. The Medicare Levy Surcharge (1–1.5%) applies separately to residents earning above $105,000 without private hospital cover.
Step 5 — HECS/HELP repayment
From 1 July 2025, HECS/HELP compulsory repayments use a marginal system. You repay a percentage only of the income above the first threshold — not a flat percentage of your whole income as under the old system. The top band is the exception: it is a flat 10% of total repayment income. For 2026-27:
The repayment is assessed on your repayment income, which is your taxable income plus reportable super contributions (such as salary sacrifice), reportable fringe benefits, net investment losses and exempt foreign income. Because reportable super is added back, salary sacrificing into super does not reduce your HECS repayment.
Source: ATO — Study and training support loans: rates and repayment thresholds (2026-27). See our dedicated HECS-HELP repayment calculator for a full breakdown.
Step 6 — Employer superannuation
The Superannuation Guarantee rate is 12% from 1 July 2025, applying to ordinary time earnings.
Employer super = gross salary × 12%
Salary sacrifice amounts are shown as additional super contributions (not included in the employer super calculation, but shown in total super).
Step 7 — Take-home pay
Take-home pay = Gross salary − Net income tax − Medicare Levy − MLS − HECS repayment − Salary sacrifice
Super is paid on top of salary and is not deducted from take-home pay.
What changed for 2026-27
The most significant change for 2026-27 is the Stage 3 tax cuts, which came into effect from 1 July 2026:
- The 19% resident rate on income $18,201–$45,000 was reduced to 15%.
- Working holiday maker rates for 2026-27 are 15% up to $45,000, then 30% to $135,000, 37% to $190,000 and 45% above that (the 30% rate has applied since 2024-25, down from 32.5%), as set out in ATO Schedule 15.
- The Superannuation Guarantee is 12% (it rose from 11.5% on 1 July 2025).
Corrections policy
Every figure on this page is checked against the ATO source linked next to it, but tax law changes and mistakes happen. If you believe a rate, threshold, or formula above is wrong, please get in touch with the specific issue and, where possible, the ATO page you are comparing it against.
I review correction requests myself and aim to respond within 5 business days. A verified correction is applied to the site immediately and recorded in the changelog with the date it was fixed — nothing is corrected silently.