📍 South Australia (SA) — Key Financial Data 2025
Average house price: $650,000 | Average weekly rent: $540/week
Stamp duty note: SA has no FHB stamp duty exemption for established homes. First Home Owner Grant of $15,000 for new homes.
Fuel average: 178–212c/L | Minimum wage: $24.10/hr
Mortgage Calculator for South Australia Residents — 2025
This calculator uses the same Australian-standard formulas as the national tool, with specific guidance for South Australia (SA) residents. Key SA-specific financial considerations are highlighted below.
South Australia Property Market — 2025 Overview
The South Australia property market in 2025 has an average house price of approximately $650,000 across the Adelaide metropolitan area, with regional SA properties typically trading at 20–40% below capital city prices. Average weekly rents in South Australia run approximately $540/week for houses, with units averaging 15–25% less.
South Australia Stamp Duty
SA has no FHB stamp duty exemption for established homes. First Home Owner Grant of $15,000 for new homes. Always verify current thresholds with the South Australia State Revenue Office or a licensed conveyancer before exchange.
Income Tax in South Australia
SA residents pay standard federal income tax. South Australia has no additional state income tax. The standard ATO federal income tax rates and thresholds apply to all SA residents.
GST in South Australia
Standard 10% GST applies across SA. Adelaide businesses typically lodge BAS quarterly.
South Australia Trade Rates (for hourly rate context)
| Trade | SA Rate (2025) |
|---|
| Paving | $78–$120/hr |
| Builder | $82–$132/hr |
| Electrician | $92–$140/hr |
Frequently Asked Questions
How much can I borrow in Australia?
Most lenders apply a debt-to-income ratio of 6–7x gross income. On a $100,000 salary, you may borrow $550,000–$700,000 subject to your expenses, existing debts and APRA's 3% serviceability buffer. Your actual borrowing capacity varies significantly by lender and your financial circumstances.
What is the difference between fixed and variable rates?
Variable rates move with the RBA cash rate — offering flexibility (extra repayments, offset accounts) but uncertainty. Fixed rates lock in a set rate for 1–5 years — offering certainty but usually no offset and break costs if you exit early. Many Australians split their loan between fixed and variable portions.
What is LMI and how can I avoid it?
Lenders Mortgage Insurance (LMI) is required when your deposit is under 20% of the purchase price (LVR above 80%). It protects the lender (not you) and can cost $5,000–$40,000+ depending on loan size. To avoid it: save a 20% deposit, use a guarantor, or access government schemes like the First Home Guarantee which allows eligible FHBs to buy with 5% deposit and no LMI.
What is a comparison rate?
A comparison rate combines the interest rate and most fees into a single annual percentage showing the true loan cost. It makes comparing loans from different lenders more straightforward. Always compare comparison rates — a low headline rate with high fees can cost more over time than a slightly higher rate with no fees.