What is the 50% CGT discount in Australia?

Australian resident individuals and trusts can reduce a capital gain by 50% if the asset was owned for at least 12 months before disposal. This effectively halves the portion of the gain included in your taxable income. Companies do not qualify for the discount.

How is Australian CGT calculated?

There is no separate CGT rate. The net capital gain (after any applicable discount) is added to your other taxable income and taxed at your marginal income tax rate using the standard ATO resident brackets.

What is the tax-free threshold in Australia?

For 2024-25, the tax-free threshold for Australian residents is $18,200. Income up to this amount is tax-free. The Low Income Tax Offset (LITO) and Low and Middle Income Tax Offset (LMITO) may further reduce tax payable — this calculator includes LITO.

Can capital losses reduce my CGT?

Yes. Current-year capital losses must be applied against capital gains before the 50% discount is applied. Prior-year losses carried forward also reduce your net capital gain. Subtract any losses from your gross gain before entering the figure here.

Does CGT apply to my principal home?

The main residence exemption generally exempts your primary home from CGT. Partial exemptions apply if the property was used to generate income or was not your home for part of the ownership period. Do not include exempt gains in this calculator.

What are the 2024-25 marginal tax rates?

For Australian residents in 2024-25: 0% on the first $18,200; 16% on $18,201–$45,000 (new Stage 3 rate); 30% on $45,001–$135,000; 37% on $135,001–$190,000; and 45% over $190,000. The 2% Medicare Levy applies on income above the low-income threshold.

Australia Capital Gains Tax Calculator

Name: Australia Capital Gains Tax Calculator
Availability: InStock
Author: Nham Vu

Enter your capital gain, holding period, and annual income to calculate your Australian CGT liability with the optional 50% discount.

Your Details

Capital Gain (proceeds minus cost base)

Enter the gross gain before any discounts or loss offsets.

Holding Period

Over 12 months 12 months or less

Assets held over 12 months qualify for the 50% CGT discount.

Other Taxable Income (before this gain)

Salary, business income, rent, etc. for the 2024-25 year.

Residency Status

Foreign residents do not receive the tax-free threshold or 50% CGT discount.

Fill in your details and click Calculate CGT

CGT Summary

CGT Owed

Effective Rate

Net Gain

2024-25 Marginal Rate Brackets

Taxable Income	Rate	+ Medicare

Calculation Breakdown

Estimate only — 2024-25 ATO resident rates including LITO. Excludes LMITO, private health rebate, HELP debt, and state taxes. Consult a registered tax agent for personal advice.

Summary

Enter your capital gain, holding period, and annual income to calculate your Australian CGT liability with the optional 50% discount.

How it works

Enter the capital gain — the profit from selling the asset (proceeds minus cost base).
Select whether the asset was held for more than 12 months to qualify for the 50% CGT discount.
Enter your other taxable income for the year (salary, business income, etc.) before this gain.
The calculator applies the 50% discount (if eligible) to determine the net capital gain.
The net capital gain is added to your other income and taxed at your marginal ATO rate.
Your total CGT, effective rate on the gain, and net proceeds after tax are displayed.

Use cases

Estimate CGT before selling shares or managed fund units.
Calculate the tax impact of selling an investment property.
Compare the tax saving from holding an asset for over 12 months versus selling early.
Plan asset disposals to minimize CGT across tax years.
Understand how a large capital gain pushes you into a higher marginal bracket.
Model after-tax proceeds from selling a small business or goodwill.
Determine whether a capital loss offsets a gain dollar for dollar.
Estimate CGT for cryptocurrency disposals.

Frequently Asked Questions

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Last updated: 2026-05-23 · Reviewed by Nham Vu