Free South Australia Motorcycle Bill of Sale
Selling a motorcycle privately in South Australia triggers the same strict 1-business-day seller notification requirement and $4-per-$100 stamp duty that applies to car sales. Given that motorcycles frequently sell for prices that differ substantially from guide values, ensuring the bill of sale accurately reflects the agreed price — and that both parties retain signed copies — protects against Revenue SA's market-value reassessment.
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South Australia Motorcycle Bill of Sale — What You Need to Know
Stamp Duty / Tax Details
Stamp duty on private motorcycle sales is $4 per $100 of market value, the same rate as cars. Revenue SA uses Redbook guide values for motorcycles — if the stated sale price is below market value, duty will be assessed on the guide price.
Inspection / Roadworthy Requirements
No roadworthy certificate is required for private motorcycle sales in SA. A buyer-arranged mechanical inspection is strongly advised given the safety implications of purchasing a used motorcycle.
South Australia Motorcycle Sale — Step-by-Step Checklist
- Record the motorcycle's VIN or engine number, make, model, year, colour, engine displacement, and odometer on the bill of sale.
- Seller lodges the Notification of Change of Ownership at sa.gov.au within 1 business day.
- Buyer completes the vehicle transfer at Service SA within 14 days and pays stamp duty at $4 per $100 of market value.
- Run a PPSR check to confirm no outstanding finance on the motorcycle before paying.
- Buyer provides current SA motorcycle licence (correct class for engine displacement) and proof of CTP insurance.
- Both parties sign and retain a copy of the bill of sale.
Common Pitfalls
- Incorrect licence class: SA motorcycle licences have learner, RE, and R classes — the buyer must hold the appropriate class for the engine size. An incorrect class does not block the transfer but affects the buyer's legality to ride.
- Missing VIN or engine number: older motorcycles may have separate VIN and engine numbers — DoT records track the VIN, so ensure the correct number appears on the transfer form.
- Failing to lodge the Change of Ownership notification on the sale day: with a 1-business-day window, any delay beyond close of business on the sale date risks exposure to post-sale infringements.
- Assuming a low price escapes stamp duty assessment: Revenue SA applies Redbook values to motorcycles and will reassess duty if the stated price is materially below the guide figure.
Pro Tip
Both parties should confirm the Redbook guide value for the motorcycle before agreeing on a price — Revenue SA will assess duty on market value regardless of the sale price, so there is no advantage to understating the figure and significant downside risk.