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Capital Gains Tax (CGT) Calculator Australia

This capital gains tax calculator helps you estimate the Australian tax on profits from selling assets. Ideal for property, shares, and crypto, this tool simplifies the capital gains tax calculation for the 2025-26 tax year.

Step 1 of 3: Asset Details

Asset Details

Your Situation

Results

Asset Purchase & Sale Details

To begin the capital gains tax calculation, enter the financial details of your asset.

How Capital Gains Tax Calculation Works

How Your CGT is Calculated in Australia

  1. Calculate the Cost Base:This is the initial purchase price plus all associated buying and selling costs (like stamp duty and legal fees).
  2. Determine Capital Gain or Loss:Subtract the total cost base from the final sale price.
  3. Apply Losses and Discounts:First, subtract any available capital losses. Then, if you've held the asset for over 12 months, apply the 50% CGT discount to the remaining amount.
  4. Calculate Final Tax:The resulting amount is your 'taxable capital gain'. This is added to your income for the year and taxed at your personal marginal tax rate.
Capital gains tax flow: (Sale Price - Costs) - (Purchase Price + Costs) → Gross Gain → Apply Losses → Apply Discount → Taxable Gain → Add to Income → Final Tax

Capital Gains and Taxes: FAQs