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HomeIncome Tax Calculator
Free Tool

Want to know where you actually stand this year?

Estimate your Australian income tax in minutes and get a clearer picture of what you'll actually take home this year.

400+
Business Decisions Supported
600+
Individuals & Business Owners Guided Each Year
95%
Client Retention Rate
20+ Years
Helping Australians Plan Before Tax Time

Work out your estimated income tax

Fill in the details below - your estimate updates automatically.

If you know your PAYG withholding or instalments paid so far, add it here to see an estimated refund or amount owing.

Your Estimate

$0

Estimated total tax, including Medicare Levy

  • Taxable income$0
  • Income tax$0
  • Medicare Levy (2%)$0
  • Estimated weekly take-home$0
  • Estimated fortnightly take-home$0
  • Estimated annual take-home$0

This is an estimate only, based on simplified 2025-26 resident individual tax brackets plus a flat 2% Medicare Levy. It excludes offsets, the Medicare Levy surcharge, HECS/HELP repayments, low income tax offsets and other circumstances that may apply to you. It is not tax advice.

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What your number means

Your Tax Number Is Only the Starting Point

Your estimated tax depends on more than your salary or business income. Deductions, offsets, income sources, business structure and other circumstances can change the outcome.

For employees

Deductions and offsets can affect your taxable position.

For sole traders

Business expenses, income and tax planning can materially change your outcome.

For business owners

How you structure and draw income can have broader tax implications.

Why use it

Why Use the SBX Income Tax Calculator?

Built on Current ATO Tax Brackets

This income tax estimator stays aligned with the latest ATO tax brackets and thresholds, so your estimate reflects this year's rules, not last year's.

Works for Employees, Sole Traders & Business Owners

Whether you're on a salary, running a business, or earning a mix of both, this calculator works out tax on taxable income across different income types.

Includes the Medicare Levy

Your estimate factors in the Medicare Levy automatically, so the number you see is closer to what you'll actually owe, not just a base tax figure.

See What Your Income Means in Real Terms

Understand your estimated annual tax alongside your weekly, fortnightly and annual take-home income, making it easier to plan your cash flow and spending.

How it's calculated

How to Calculate Income Tax in Australia?

Income tax in Australia works on a marginal rate system - you don't pay one flat rate on everything you earn. Here's the general shape of it:

  1. 01

    Calculate your taxable income

    Total income minus any deductions you're entitled to claim.

  2. 02

    Apply the relevant tax brackets

    Each portion of income is taxed at its applicable marginal rate.

  3. 03

    Add the Medicare Levy

    Generally 2% of taxable income, with some exemptions and reductions depending on your circumstances.

  4. 04

    Account for tax already paid

    PAYG withholding and other credits help determine whether you have additional tax to pay or a refund.

Our calculator brings these factors together to give you an estimate you can plan around.

FAQs

Income Tax FAQs