Australia Capital Gains Tax Calculator 2026–27
Calculate capital gains tax in Australia for 2026–27: the 50% discount after 12 months, losses and your marginal rate with the Medicare levy.
Resident tax rates for 2026–27 (0, 15, 30, 37 and 45%) plus the 2% Medicare levy. The 50% discount applies to individuals and trusts that held the asset for at least 12 months; losses are deducted before the discount. Your main residence is usually exempt.
What it does
Capital gains tax is not a separate tax in Australia: the net capital gain is added to your taxable income for the year and taxed at your marginal rate. If you held the asset for 12 months or more, only half of the gain is added.
How to use it
- Type your taxable income for the year without the gain.
- Type the capital gain and any losses, and tick if you held the asset for 12 months.
- See the tax, the discount and the share of the gain you keep.
The arithmetic runs in your browser. Nothing you type is sent anywhere and nothing is stored, so you can use these with real numbers.
Frequently asked questions
How is capital gains tax calculated in Australia?
Half of the gain, if held 12 months, is added to your taxable income. With $90,000 of income, a $20,000 gain adds $10,000 and $3,200 of tax and Medicare: 16% of the gain.
What if I sell within 12 months?
There is no discount: the same $20,000 gain is fully taxable and costs $6,400.
What is the capital gains tax rate at the top bracket?
Above $190,000 the marginal rate is 47% with Medicare, so a discounted gain costs 23.5% of the gain: $4,700 on $20,000.
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