Australia Calculators: Pay, Tax, Stamp Duty & GST

Free Australian calculators for pay and income tax, stamp duty by state, GST, super and HECS, built on ATO and state rules.

Calculators built on this country's tax rules are being added now — new tools appear here automatically.
Quick answer

Our Australian calculators use ATO resident rates for the financial year running 1 July to 30 June. They include the $18,200 tax-free threshold, the 2% Medicare levy, HELP/HECS repayments and the 12% superannuation guarantee. Stamp duty is calculated with each state's own rules and first home buyer concessions.

About our Australian calculators

Our Australian calculators follow the resident tax rates and rules published by the Australian Taxation Office (ATO) for the current financial year. Pay tools cover income tax, the Medicare levy, HELP (HECS) repayments and the superannuation guarantee your employer pays into your super fund. Stamp duty (transfer duty) is set by each state and territory, so property calculators apply the rules of the state you choose.

The Australian tax year at a glance

ItemWhat to know
Financial year1 July to 30 June.
Tax return deadline31 October if you lodge yourself; later dates can apply through a registered tax agent.
Tax-free thresholdAustralian residents pay no income tax on the first $18,200.
Medicare levy2% of taxable income for most residents, with reductions on low incomes.
Superannuation guarantee12% of ordinary time earnings, paid by your employer into your super fund.
GST10% on most goods and services.

How you are paid matters

Many Australians are paid fortnightly, so our pay calculators show weekly, fortnightly, monthly and annual figures. Your employer withholds tax from each pay through the Pay As You Go (PAYG) system, and your tax return at the end of the financial year settles any difference.

Stamp duty is a state tax

State or territoryWho sets the duty
New South WalesRevenue NSW
VictoriaState Revenue Office Victoria
QueenslandQueensland Revenue Office
Western AustraliaRevenueWA
South AustraliaRevenueSA
Tasmania, ACT, Northern TerritoryEach territory or state revenue office

Each state has its own rates, thresholds and first home buyer concessions or exemptions, which can save thousands of dollars.

Key terms explained

  • PAYG withholding: tax your employer takes from each pay and sends to the ATO.
  • TFN declaration: the form you give a new employer, including whether you claim the tax-free threshold.
  • Medicare levy surcharge: an extra charge for higher earners who do not hold appropriate private hospital cover.
  • HELP / HECS debt: study loans repaid through the tax system once your income passes the repayment threshold.
  • Salary sacrifice: paying extra into super from your pre-tax salary.

How to get the most accurate result

  1. Have your payslip or contract with your gross salary and pay cycle (weekly, fortnightly or monthly).
  2. Tell the calculator whether you claim the tax-free threshold from this employer.
  3. Add any HELP/HECS debt and salary sacrifice.
  4. Compare with your payslip; small differences usually come from rounding in the ATO withholding tables.

Key facts

  • The Australian financial year runs from 1 July to 30 June.
  • Residents pay no income tax on the first $18,200.
  • The Medicare levy is 2% of taxable income for most residents.
  • The superannuation guarantee is 12% of ordinary time earnings.
  • GST is 10% on most goods and services.
  • Stamp duty is set separately by each state and territory.

Frequently asked questions

Which financial year do the Australian calculators use?

The current Australian financial year, from 1 July to 30 June. The year is shown on each calculator.

Is superannuation included in my take-home pay?

No. Super guarantee contributions are paid by your employer into your super fund, usually on top of your base salary, so they are shown separately and are not part of your take-home pay.

Why is stamp duty different in each state?

Transfer duty is a state and territory tax. Each one sets its own rates, thresholds and first home buyer concessions.

What is the tax-free threshold?

Australian residents pay no income tax on the first $18,200 of taxable income. You should usually claim it from only one employer.

How is my HECS debt repaid?

Through the tax system. Once your income passes the repayment threshold, a percentage is withheld from your pay and settled in your tax return.

Does the calculator include the Medicare levy?

Yes. The standard 2% levy is included, with low-income reductions applied where relevant.

Sources & methodology

  1. Australian Taxation Office
  2. ATO — Tax rates for Australian residents
  3. ATO — Super guarantee

Read our full calculation methodology.