Calculate∑ What your result means
Individuals who hold an asset for more than 12 months before selling can generally discount the taxable capital gain by 50%, then the discounted gain is added to taxable income and taxed at marginal rates.
Australia Capital Gains Tax (CGT) Discount Calculator
Estimate CGT payable on an asset sale, including the 50% discount for assets held over 12 months.
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Verified for 2026-27Methodology 2026-27.1 · reviewed 2026-08-08 · review by 2027-06-01
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Compare scenarios
Change years held to see how estimated cgt payable responds.
Understand your result
Clear context for the values above.
Estimated CGT payable
Estimated CGT payable is included so you can interpret this estimate and make a better-informed comparison.
Total capital gain
Total capital gain is included so you can interpret this estimate and make a better-informed comparison.
Taxable gain after 50% discount
Taxable gain after 50% discount is included so you can interpret this estimate and make a better-informed comparison.
Purchase price
Purchase price is included so you can interpret this estimate and make a better-informed comparison.
How to use this calculator
- 1Enter your current purchase price, sale price, years held, marginal tax rate.
- 2Review the headline estimated cgt payable and the supporting figures beside it.
- 3Change one input at a time to see which assumption has the biggest effect.
- 4Confirm current Australian rates and thresholds with an official source before acting.
Explore this calculator
What your result means →The headline estimated cgt payable is based on the inputs currently shown above.Key terms explained →Review the key terms and figures used to calculate this result.How to use this calculator →Enter your figures, review the live result, compare scenarios, then save or print your estimate.The calculation formula →The calculation follows the standard formula for this calculator. Results update whenever an input changes.Worked example →Using the current values produces $42,900.Assumptions and limitations →Review the assumptions used to produce this estimate before relying on it.Costs or factors not included →Review any costs, fees or rules not automatically included before making a decision.Frequently asked questions →How accurate is this estimate? What should I check before relying on it? Can I save or share the result?
▦ How this calculator works
The gain is the sale price minus the purchase price (ignoring costs). If held for at least a year, the gain is halved before tax is estimated at your marginal rate plus the 2% Medicare levy; otherwise the full gain is taxed.
◇ Assumptions and what's not included
Purchase and sale costs (stamp duty, agent fees, legal fees), capital works deductions previously claimed, and the main residence exemption for a primary home are not included — a primary residence held the whole ownership period is usually exempt entirely.
▤ What to do next
Add your buying and selling costs to the cost base for a more accurate gain figure, and check whether any main-residence or small-business CGT concessions apply before relying on this estimate.
Australia-specific contextFigures use AUD and current published rates and thresholds.
Reviewed for clarityUpdated 3 August 2026.
ImportantFor planning and educational use — not tax, legal or financial advice.
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Frequently asked questions
Does the 50% discount apply to companies?+
No, the CGT discount is only available to individuals, trusts (in most cases) and complying super funds at a reduced 33.3% rate — not to companies.
What if I sell within 12 months of buying?+
No discount applies — the full capital gain is added to your taxable income and taxed at your marginal rate.
Is my main home's capital gain taxed?+
Your main residence is usually exempt from CGT for the period it was your home, which this calculator doesn't model — use it for investment assets.
Are buying and selling costs included in the gain?+
Not automatically here — in practice, costs like stamp duty and agent commissions add to your cost base and reduce the taxable gain.
Official references
Rules and thresholds used by this calculator are labelled for 2026–27 or formula-labelled period. Review the primary guidance before making a filing, borrowing, benefit or investment decision.
Last source review: 3 August 2026. Calculator results are estimates and may exclude circumstances described in the methodology.