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What tax will I pay when I sell?

Capital gains tax calculator

Explore the estimated capital gains tax impact of a property sale using your dates, costs and income assumptions.

Start calculatingSee plans
  • Free, no account needed
  • Workings and assumptions shown
  • HtAG data with any plan

Use the free calculator

Capital gains tax calculator

Include the stamp duty you paid. The stamp duty calculator works it out.

Leave it blank to use 2.5% of the sale price.

This calculator needs JavaScript. The rates it uses are in the table below.

How it's calculated

Resident income tax rates 2026-27

FromToBase amountRate
$0$18,200$00% of the excess
$18,200$45,000$015% of the excess
$45,000$135,000$4,02030% of the excess
$135,000$190,000$31,02037% of the excess
$190,000and over$51,37045% of the excess

How it’s calculated

The method behind your estimate

How this estimate works

Enter the sale and acquisition dates, proceeds, eligible cost base and income. The model estimates the incremental income tax associated with a supported capital gain.

What to check before you act

Main-residence use, residency, entity type, capital losses and deductible costs can change the outcome. This is a scenario estimate, not a tax return.

Sources and further guidance

General information only. Check the calculator workings, selected rules date and supported scope. Not financial, credit, tax, legal or valuation advice.

Your next step

Plan the exit

You are on step 2 of 3: Capital gains tax

Next: Equity and next purchase
  1. Buy, hold and sell
  2. Capital gains tax
  3. Equity and next purchase
  • Step 1

    What could it return?

    Buy, hold and sell

    What a property could return if you buy, hold it for years and sell.

    FreeHtAG data

  • Step 3 · Next

    What could my equity buy next?

    Equity and next purchase

    An indicative check of usable equity and your next purchase. Lender policies, valuations and approval requirements vary.

    FreeHtAG data

Continue your research

Take this scenario further.

The calculator shows what the numbers do. These tools show where they work: the suburbs, the streets and the answers behind them.

  • Street intelligence

    With a plan

    StreetLens™

    Street-level hexagon maps inside every suburb: price, rent, yield, days on market and more.

  • Market selection

    With a plan

    Residential Dex™

    Filter and rank Australian suburbs against a brief, with the contribution behind every score.

  • Market map

    Free

    LGA and Suburb Heatmap

    Compare markets across Australia by typical price, one-year growth and area layers.

Your own figures are free. HtAG data makes them specific.

With any active HtAG plan, this calculator fills the sale price from HtAG’s estimate and the last sale price and date from the property’s address.

  • 7,000+ suburbs scored
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FAQ

Questions people ask

Short answers about the method, the rules and what HtAG data adds.

Still have a question? Contact us

Is CGT a separate flat property tax?

For individuals a net capital gain generally contributes to taxable income. The model compares supported tax calculations with and without that gain.

Is the CGT discount always available?

No. Holding period, residency, ownership type and other conditions affect eligibility. Review the model's assumptions and confirm your position.

Is the capital gains tax calculator free to use?

Yes. Every HtAG calculator is free to use with your own figures, and you do not need an account. An HtAG plan adds property and suburb data to the calculators that support it.

What does an HtAG plan add to this calculator?

With any active HtAG plan, this calculator fills the sale price from HtAG’s estimate and the last sale price and date from the property’s address. Filled figures are marked and you can overwrite every one.