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Australian CGT Calculator
Enter your purchase and sale details to calculate your capital gain, 50% discount eligibility, and estimated tax at every marginal rate.
How Australian CGT works
When you sell a capital asset — shares, ETFs, crypto, or property — the profit is subject to Capital Gains Tax (CGT) at your marginal income tax rate. The capital gain is added to your assessable income for the year and taxed accordingly.
The 50% CGT discount applies to assets held for more than 12 months by Australian resident individuals. Only half the gain is included in your taxable income — effectively halving the tax you pay on long-term investments.
Cost base includes your purchase price plus buying brokerage. Selling brokerage reduces your proceeds. This calculator handles both automatically.
Capital losses offset capital gains in the same or future financial years. Excess losses carry forward indefinitely — they cannot be offset against ordinary income.