Cockatoo

Tax calculator

Capital Gains Tax Calculator

Estimate the capital gain on an asset such as shares or an investment property, apply the CGT discount, and see the approximate tax. Works for individuals, SMSFs and companies.

Your asset

All fields are optional — leave a cost at 0 if it doesn't apply.

Individuals/trusts get the 50% discount; SMSFs get 33.3%; companies get none.
Brokerage, stamp duty, legal.
Brokerage, agent fees.
Renovations or improvements added to the cost base (property).
Used to work out the tax on the gain at your marginal rate (2024–25 resident rates + Medicare).

Estimated capital gains tax

$0

Enter your figures to see an estimate.

Total cost base$0
Capital gain$0
CGT discount applied$0
Taxable capital gain$0
Estimated CGT payable$0
Net gain after tax$0

Estimate only. The CGT discount is 50% for individuals/trusts and 33.3% for super funds on assets held over 12 months; nil in an SMSF's pension phase. Confirm your position with theATO or a registered tax agent.

Related reading

This calculator gives a general estimate based on 2024–25 Australian resident tax rates plus the Medicare levy, and does not account for every situation (capital losses carried forward, part-year residency, the main-residence exemption, small-business concessions, or company base-rate-entity rates). It is not tax advice. Always confirm current rates and your circumstances with the ATO or a registered tax agent.

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