New South Wales

CGT Calculator
Western Australia

Selling an investment property in Perth, Bunbury, or anywhere else in Western Australia? Calculate CGT Calculator WA most accurate values.

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CGT Calculator WA 2025-26
CGT Calculator WA
Includes WA stamp duty in your cost base. Perth property. ATO-aligned latest rates. No signup required.
🟠 WA: Stamp duty auto-estimated using WA’s five-bracket system. Override with your actual RevenueWA settlement figure.
Your WA CGT Estimate
✓ 50% CGT Discount Applied ✓ WA Stamp Duty in Cost Base
Gross Capital Gain
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Taxable Gain
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Estimated CGT Payable
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Includes 2% Medicare levy · 2025–26 ATO rates
Step-by-Step Breakdown
Sale Price—
Less: Selling Costs—
Net Sale Proceeds—
Less: Purchase Price—
Less: WA Stamp Duty—
Less: Acquisition Costs—
Less: Capital Improvements—
Less: Capital Losses—
Gross Capital Gain—
50% CGT Discount—
Taxable Capital Gain—
Tax at Marginal Rate—
Medicare Levy (2%)—
Total CGT Payable—
Net After CGT
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Effective Rate
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⚠️ Estimate only — not tax advice. Duty estimate is indicative; use your actual settlement statement amount.
Western Australia

Capital Gains Tax on Property & Investments

Perth’s property market surged dramatically between 2022 and 2025 with median prices rising faster than any other capital city. Many WA investors who bought houses in Balcatta, Rockingham, or Joondalup for $400,000–$500,000 are now sitting on gains of $200,000–$350,000. That’s a significant CGT event when they sell.

WA stamp duty is mid-range — roughly $17,000–$22,000 on a $500,000–$600,000 Perth investment property. Including this in your cost base reduces your taxable gain. The CGT Calculator WA above auto-estimates WA duty and includes it.

💡 WA Fast Fact: WA uses five duty brackets from 1.9% to 5.15%. On a $600,000 Perth investment property, WA stamp duty is approximately $22,515 included automatically in your cost base below.

Calculating CGT

How to calculate CGT on CGT Calculator WA

Here’s the guide on CGT Calculator WA

These images shows CGT Calculator WA.

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WA Transfer Duty Rates

New South Wales Transfer Duty Rates

Property Value

Rate on Excess

Duty on $600k

Duty on $900k

Duty on $1.5m

$0 – $120,000

1.9%

$120,001 – $150,000

2.8%

$150,001 – $360,000

3.8%

~$15,740

~$22,515

~$35,740

$360,001 – $725,000

4.6%

Over $725,000

5.15%

Need more information? Check out official ATO Site.

NSW CGT Questions

Frequently Asked Questions CGT Calculator WA

No. Capital gains tax is a federal tax administered by the ATO the same rules apply in Western Australia as in every other state. There is no ‘WA CGT’ you can use general CGT Calculator as well. The WA Department of Finance (RevenueWA) administers stamp duty and land tax, but not CGT. Your capital gain is reported to the ATO through your annual income tax return.

Perth experienced extraordinary property price growth from late 2022 through 2025 driven by strong interstate migration, resource sector incomes, and limited housing supply. Many investors who purchased in 2020–2022 are now sitting on gains of $200,000–$400,000. At the same time, awareness of CGT planning tools like the 50% discount and cost base maximisation has grown. The combination of large gains and limited prior planning is generating significant CGT events across WA.


Yes — legally. The most effective strategies: (1) Hold for 12+ months the 50% CGT discount halves your taxable gain. (2) Include every cost base item: WA stamp duty, conveyancing, capital improvements, selling costs. (3) Apply capital losses from shares, ETFs, or other properties to reduce the gain before the discount. (4) Time the sale for a year where your other income is lower. (5) If the property was your main residence for part of the time, a partial exemption may apply. A registered tax agent can model all of these for your specific situation.

No. WA land tax is an annual state tax charged by RevenueWA on the unimproved value of investment land above the taxable threshold. It is separate from federal CGT and is paid while you hold the property, not when you sell. Land tax paid during the holding period is deductible against rental income in your annual return but it does not form part of your CGT cost base and does not directly reduce your capital gain.