Tax Calculator Australia — ATO Income Tax Estimator

Our Tax Calculator Australia gives you a complete picture of your tax position for the 2025-2026 financial year. Go beyond simple income tax — calculate deductions, capital gains tax (CGT), Medicare Levy, HECS-HELP repayments, Low Income Tax Offset (LITO), franking credits, and your estimated ATO refund or amount owing. Instant results, ATO-compliant, completely free.

How the Australian Tax System Works

Australia's tax system is administered by the Australian Taxation Office (ATO) and operates on a self-assessment basis. Each financial year runs from 1 July to 30 June. During the year, your employer withholds estimated tax under the Pay As You Go (PAYG) withholding system. After 30 June, you lodge a tax return to settle the difference between what was withheld and your actual liability. If too much was withheld, you receive a tax refund. If too little, you have a tax debt.

Australian Income Tax Rates 2025-26

The tax-free threshold for Australian residents is $18,200. Above that, progressive marginal rates apply — you only pay the higher rate on the slice of income within each bracket:

Non-residents are taxed at 30% from the first dollar (no tax-free threshold) up to $135,000, then 37% and 45% at higher brackets. Non-residents are not entitled to the LITO or other resident offsets.

Tax Deductions — Reduce Your Taxable Income

A tax deduction reduces your taxable income, which in turn reduces the amount of tax you owe. Common deductions include:

• Work-related expenses — protective clothing, tools, professional subscriptions, union fees, and home office running costs.
• Vehicle and travel — using your car for work purposes (not commuting) at the ATO cents-per-kilometre rate ($0.88/km for up to 5,000km) or the logbook method.
• Self-education — courses, textbooks, and conferences directly related to your current job.
• Charitable donations — gifts of $2 or more to ATO-registered Deductible Gift Recipients (DGRs) are fully deductible.
• Investment property — interest on loans, council rates, property management fees, depreciation, and repairs are deductible against rental income.
• Income protection insurance — premiums for policies held outside of super are generally deductible.

Tax Offsets — Direct Reductions in Tax Payable

Unlike deductions, tax offsets directly reduce the amount of tax you owe dollar-for-dollar. Key offsets include:

• Low Income Tax Offset (LITO) — up to $700 for incomes up to $37,500, phasing out fully at $66,667.
• Seniors and Pensioners Tax Offset (SAPTO) — available to eligible seniors and pensioners receiving government payments.
• Franking credits — when Australian companies pay dividends from already-taxed profits, shareholders receive a credit. These can be refunded if they exceed your tax liability.

Capital Gains Tax (CGT) in Australia

Capital gains are added to your assessable income and taxed at your marginal rate. Key rules for FY 2025-26:

• CGT applies when you dispose of a capital asset — shares, investment property, cryptocurrency, and more.
• If you held the asset for more than 12 months, you receive a 50% CGT discount.
• Capital losses can offset capital gains in the same year. Excess losses carry forward to future years.
• Your main residence is generally exempt from CGT.

CGT Example: Selling Shares

You bought shares for $20,000 and sold them for $50,000 after holding for 18 months. Gross gain = $30,000. After the 50% discount, your taxable capital gain is $15,000. If you are in the 30% tax bracket, the CGT payable would be approximately $4,500.

Medicare Levy and Medicare Levy Surcharge

The Medicare Levy is 2% of your taxable income, funding Australia's public healthcare system. The Medicare Levy Surcharge (MLS) is an additional 1% to 1.5% that applies to higher-income earners (above $93,000 for singles) who do not hold private hospital cover.

How to Get a Bigger Tax Refund in Australia

The average Australian tax refund is around $2,800. Here are legal strategies to maximise yours:

• Claim all legitimate deductions — keep receipts throughout the year.
• Salary sacrifice into super — pre-tax contributions reduce taxable income (up to the $30,000 concessional cap).
• Prepay deductible expenses — prepay income protection insurance or investment loan interest before 30 June.
• Lodge on time — the deadline for self-lodgers is 31 October.

Frequently Asked Questions

Last updated April 2026. Source: Australian Taxation Office (ATO). This tool is for informational purposes only and does not constitute financial, tax, or legal advice.