Free South Australia Used Car Bill of Sale
South Australia pairs the country's steepest vehicle duty — $4 per $100, assessed on the HIGHER of price and market value — with no roadworthy requirement at all, which pulls used-car due diligence in two directions at once. On the money side, document the true price and the car's condition, because Revenue SA won't accept a lowball figure against market value. On the metal side, nothing is inspected before sale, so the $2 PPSR search and an independent mechanical check are your whole safety net. The seller files the notice of disposal with Service SA; the buyer completes the transfer and pays duty at the same counter or online.
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South Australia Used Car Bill of Sale — What You Need to Know
Stamp Duty / Tax Details
Budget hard for duty: at $4 per $100 of market value, a $25,000 used car adds $1,000 — and Revenue SA checks the declared price against Redbook, taking whichever is higher.
Inspection / Roadworthy Requirements
SA mandates no inspection on a private used-car sale — the car's condition is exactly as the buyer finds it. A paid pre-purchase inspection is the only professional check available.
Registration
Registration for this vehicle type is handled by Service SA — separate from the transfer agency.
South Australia Used Car Sale — Step-by-Step Checklist
- Run the ~$2 PPSR search on the VIN before any money moves.
- Book an independent inspection — SA mandates no pre-sale roadworthy.
- Document the true price AND condition — duty is $4 per $100 on the higher of price and market value.
- Check the odometer against service records and past registration papers.
- Buyer completes the Service SA transfer and pays duty; seller lodges the disposal notice promptly.
Common Pitfalls
- Nominating a low price to trim duty — Revenue SA assesses the higher of price and market value, and a $25,000 car owes $1,000 regardless.
- Assuming somebody inspected the car at some point — no SA authority did; the last roadworthy may be years old or never.
- Skipping the PPSR because the seller "seems genuine" — finance survives goodwill.
- Leaving the disposal notice unfiled and wearing the buyer's speeding fines.
Pro Tip
SA used cars: paper the price, inspect the metal, run the PPSR — the state checks the value but never the vehicle.