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Capital Gains Tax Calculator Australia

Estimate CGT on shares, ETFs, crypto and other investment assets using capital losses, the 50% discount and your taxable income.

Australian CGT Estimate for Investment Assets

Use this capital gains tax calculator to estimate the taxable gain from selling shares, ETFs, crypto and other investment assets. Enter your purchase price, sale price, transaction costs, capital losses and other taxable income to estimate the extra tax that may be payable.

The calculator applies carried-forward capital losses before the 50% CGT discount, then adds the net capital gain to your other taxable income. It is designed for general investment assets and does not calculate main residence exemptions or other property-specific CGT rules.

Capital Gain Inputs

Estimate CGT for shares, ETFs, crypto and other general investment assets.

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The dates show a holding period of at least 12 months.

Capital Gains Tax Estimate

Uses your taxable capital gain to estimate the change in annual Australian resident tax.

Gross Capital Gain

$9,000.00

Net Capital Gain

$4,500.00

Estimated Additional Tax

$1,440.00

After-tax Capital Gain

$7,560.00

Capital Proceeds$20,000.00
Cost Base$11,000.00
Applied Capital Losses$0.00
CGT Discount$4,500.00
Unused Capital Losses$0.00
Estimated Tax Before Capital Gain$16,388.00
Estimated Tax After Capital Gain$17,828.00

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How This Capital Gains Tax Estimate Works

Australian CGT starts with the difference between what you received for the asset and its cost base. In this tool, the cost base is estimated from the purchase price plus purchase and sale costs. If the result is a capital gain, carried-forward capital losses are applied before any CGT discount.

  • Capital losses reduce capital gains before the discount is applied.
  • The 50% discount is only applied when the date inputs show at least a 12-month holding period and the discount toggle is on.
  • The net capital gain is added to your other taxable income to estimate the increase in annual tax.
  • The result is an estimate for Australian resident individuals and should be checked against your own tax situation.

Need Income Tax Estimates Too?

If you want to estimate salary tax, Medicare levy, HELP/HECS repayments and superannuation, compare this result with the Australian Pay Calculator.