Quick Summary: Investors buying property in Western Australia pay transfer duty at the general rate, with no first-home buyer concessions. A $600,000 purchase costs $22,515 in stamp duty, which must be included in settlement funds and cash-flow modelling. Stamp duty is not an annual tax deduction, but it becomes part of the property’s cost base and reduces the capital gain taxed when you sell.
Two investors can buy on the same Maddington street for the same price and still face very different settlement costs. One claims a concession, the other pays the general rate in full. That gap makes stamp duty on investment property easy to get wrong. Below, we walk through WA stamp duty rates, three worked examples, and how to fold this cost into your numbers. It is the same cost model Smart Realty and Mahi Masud build for clients, drawing on more than 20 years in Perth real estate.
How Much Stamp Duty Do I Pay on an Investment Property in WA?
Investors pay the general rate of transfer duty under the Duties Act 1987. There are no first home concessions on an investment purchase, so duty runs on the full price. The general rate table looks like this:
| Dutiable value | Rate of duty |
|---|---|
| $0 – $120,000 | $1.90 per $100 |
| $120,001 – $150,000 | $2,280 + $2.85 per $100 above $120,000 |
| $150,001 – $360,000 | $3,135 + $3.80 per $100 above $150,000 |
| $360,001 – $725,000 | $11,115 + $4.75 per $100 above $360,000 |
| $725,001 + | $28,453 + $5.15 per $100 above $725,000 |
Worked examples: $450,000, $600,000 and $750,000 purchases
Three quick calculations show what stamp duty on investment property costs in practice:
- $450,000: $11,115 plus 4.75% of $90,000 = $15,390
- $600,000: $11,115 plus 4.75% of $240,000 = $22,515
- $750,000: $28,453 plus 5.15% of $25,000 = $29,740.50
That third figure can add 4% to your purchase price, so it belongs in any cash flow modelling before you sign a contract.
Why Investors Pay the Full General Rate
The general rate table above applies to every investment purchase. An investor never qualifies for the first home owner rate of duty, no matter how many homes they own or how they plan to use the property.
First home owner concessions an investor cannot claim
First home buyers in WA pay no duty on homes valued up to $600,000, then a concessional rate up to a higher cap, according to SBS News. That concession only applies when you intend to live in the home. Renting it out ends eligibility from day one.
The narrowing gap between investor and first home buyer costs
Recent changes widened the concession, so a first home buyer on a $600,000 Perth purchase pays $22,515 less in duty than you would. Factor this gap into your cash flow before you buy, since it shifts the entry price an investment property must clear, a point we stress when helping clients build a Perth portfolio around cash flow.
What Stamp Duty Does to Your Investment Numbers
A capital cost you cannot deduct
No, you cannot claim stamp duty as a yearly tax expense. The ATO treats it as part of your capital cost base, not a deductible outlay. Unlike interest or property management fees, it never reduces your taxable rental income, so many investors underestimate its cash impact when they model a purchase.
How the duty figure lands in the cost base on sale
The duty resurfaces when you sell. It gets added to your cost base, which lowers your capital gain, so you pay capital gains tax on a smaller amount. On a $600,000 Perth purchase, that is $22,515 working quietly in your favour a decade later.
How to Plan for and Pay Stamp Duty at Settlement
Assessment, payment and the settlement sequence
Lodge the contract with RevenueWA within two months; your settlement agent then pays duty through the transfer duty assessment process, usually at or before settlement. Build the figure into your deposit maths so the funds are ready on the day. The costs buyers often miss sit alongside this in your model.
Reassessment and common calculation errors
RevenueWA can reassess if your dutiable value was understated, and errors on concessions, off-the-plan dates or contract terms trigger penalty tax plus interest. Double-check the purchase price recorded in the contract, and keep every document supporting any exemption you claim.
Know your exact duty before you buy. Talk to Mahi Masud and Smart Realty for a full acquisition cost model on your next Perth investment.
Frequently Asked Questions
Q1: How much stamp duty do I pay on an investment property in Australia?
In WA, investors pay the general rate of duty with no concessions, so a $600,000 purchase costs $22,515.
Q2: How is stamp duty calculated on an investment property purchase?
RevenueWA applies the rate table to the full dutiable value: a base amount plus cents per $100 above each threshold.
Q3: How much stamp duty is payable in Western Australia on a property?
Rates run from $1.90 per $100 up to $5.15 per $100 above $725,000 under the Duties Act 1987.
Q4: Can I claim stamp duty on my tax return?
No. It forms part of your capital cost base, reducing capital gains tax when you sell, not yearly rental income.
Conclusion
Stamp duty on investment property in WA is a fixed, predictable cost. Investors pay the general rate of duty with no concessions, so model the full figure into your settlement budget before you commit.