Stamp Duty in South Australia: A Complete Guide for Buyers

20/4/2026

Stamp duty is one of the largest upfront costs of buying property in SA, yet most buyers do not understand how it is calculated, what concessions they qualify for, or how to minimise it. This guide covers everything you need to know.

Stamp duty, officially called transfer duty, is a state government tax applied whenever ownership of property changes hands in South Australia. It is paid by the buyer, not the seller, and is typically due at or before settlement. For most property purchases, it adds thousands or tens of thousands of dollars to your upfront costs, on top of your deposit, conveyancing fees and inspections.

Understanding how stamp duty works, and what exemptions or concessions you may qualify for, can save you a significant amount of money.

How Stamp Duty Is Calculated in SA

South Australia uses a tiered, sliding-scale system. The rate increases as the property value rises. This means you do not pay a flat percentage on the entire purchase price; instead, different portions of the price are taxed at different rates.

The current SA stamp duty brackets for residential property are:

Property Value Rate Up to $12,000 1.0% $12,001 to $30,000 2.0% $30,001 to $50,000 3.0% $50,001 to $100,000 3.5% $100,001 to $200,000 4.0% $200,001 to $250,000 4.25% $250,001 to $300,000 4.75% $300,001 to $500,000 5.0% Over $500,000 5.5%

These rates are cumulative. For example, on a $600,000 property, you pay 1% on the first $12,000, 2% on the next $18,000, 3% on the next $20,000, and so on up the scale. The total stamp duty on a $600,000 property works out to approximately $26,830.

The formula for properties over $500,000 is: $21,330 on the first $500,000, then 5.5% on every dollar above $500,000.

Some Common Examples

Purchase Price Approximate Stamp Duty $400,000 $16,330 $500,000 $21,330 $600,000 $26,830 $700,000 $32,330 $800,000 $37,830 $900,000 $43,330

These are standard rates for non-first-home-buyer purchases. Concessions may reduce these amounts significantly, as outlined below.

You can calculate the exact stamp duty for your purchase price using our SA stamp duty calculator.

First Home Buyer Stamp Duty Concessions

South Australia offers significant stamp duty relief for eligible first home buyers.

New Homes: Complete Stamp Duty Exemption

For contracts entered into from 6 June 2024, eligible first home buyers who purchase or build a new home pay zero stamp duty, regardless of the purchase price. There is no property price cap on this exemption.

This is one of the most generous first home buyer concessions in Australia and, combined with the $15,000 First Home Owner Grant, can reduce your upfront costs by $30,000 to $50,000 or more.

Established Homes: Partial Concession

First home buyers purchasing an established (previously occupied) home are also eligible for stamp duty relief, though the concession is not as generous as for new homes:

  • Up to $560,000: Full stamp duty exemption (you pay $0)

  • $560,001 to $700,000: Partial concession on a sliding scale

  • Over $700,000: No concession applies

On a $550,000 established home, the stamp duty would normally be approximately $18,580. With the first home buyer concession, you pay nothing. That is a substantial saving that many buyers are not aware of.

Eligibility for Stamp Duty Relief

The criteria are similar to the First Home Owner Grant:

  • You must be a natural person (not a company or trust)

  • At least one applicant must be an Australian citizen or permanent resident

  • For contracts from 13 February 2025: neither you nor your spouse/domestic partner can have previously owned residential property in Australia

  • You must live in the property as your principal place of residence for at least six continuous months within 12 months of settlement

  • You must apply for stamp duty relief separately from the FHOG (the criteria are similar but the applications are distinct)

Our SA Grants Eligibility Checker can help you determine which concessions you qualify for.

Off-the-Plan Concessions

If you are purchasing an apartment or unit off the plan (before construction is complete), you may be eligible for a stamp duty concession that calculates duty based on the land value only, rather than the full purchase price. This can reduce your stamp duty bill substantially, particularly on higher-value apartments.

Specific conditions apply, and the concession is calculated differently depending on the stage of construction at the time of contract. Your conveyancer or broker can advise on whether this concession applies to your purchase.

Foreign Buyer Surcharge

Non-Australian residents purchasing property in SA face a foreign ownership surcharge of 7% on top of the standard stamp duty. This is a significant additional cost and applies to all property purchases by foreign buyers.

If you are an Australian citizen or permanent resident, this surcharge does not apply to you.

When Is Stamp Duty Paid?

In South Australia, stamp duty is payable at or before settlement. In practice, your conveyancer handles the payment as part of the settlement process. The duty is paid to RevenueSA.

If you are using a mortgage to purchase the property, most lenders allow you to include stamp duty in your loan amount (subject to loan-to-value ratio limits). This means you do not necessarily need to have the stamp duty amount in cash at settlement, but it does increase your total loan and your repayments.

Whether it makes sense to capitalise stamp duty into your loan or pay it from savings depends on your overall financial position. Your mortgage broker can model both scenarios and show you the difference in total loan cost.

Stamp Duty on Investment Properties

Investment properties attract the standard stamp duty rates with no concessions. First home buyer exemptions and concessions do not apply to investment purchases.

For property investors, stamp duty is a significant upfront cost that must be factored into your investment analysis. On a $700,000 investment property, you will pay approximately $32,330 in stamp duty. This amount is not tax-deductible in the year of purchase (it forms part of the property's cost base for capital gains tax purposes).

How to Minimise Stamp Duty

There are several legitimate strategies to reduce the stamp duty you pay:

Buy a new home as a first home buyer. The combination of zero stamp duty and the $15,000 FHOG makes new homes the most financially advantaged purchase for eligible first home buyers.

Buy an established home under $560,000 as a first home buyer. The full stamp duty exemption on established homes up to this threshold eliminates the duty entirely.

Consider off-the-plan purchases. The off-the-plan concession can substantially reduce duty on apartments and units purchased before construction is complete.

Buy land and build separately. Stamp duty is calculated on the land purchase price, not the total value of the finished home. If you buy a $250,000 block and build a $400,000 home on it, you pay stamp duty on $250,000 rather than $650,000. The saving can be substantial.

Time your purchase. If government policy changes are expected (such as further concessions or threshold increases), timing your contract to fall within the new rules can make a difference. Your broker can advise on any upcoming changes.

What to Do Next

Stamp duty is one of several upfront costs that need to be factored into your property purchase budget. Understanding exactly how much you will pay, and what concessions you qualify for, helps you plan your deposit and borrowing requirements accurately.

This article is general information only and does not constitute financial or legal advice. Stamp duty rates and concessions are subject to change by the SA Government. Always confirm current rates and your eligibility with RevenueSA or your conveyancer. Lender Edge, Credit Representative Number 574076, is an Authorised Credit Representative of Astute Financial Management Pty Ltd, Australian Credit Licence 364253.