Car Buying Costs in Australia — Stamp Duty, Rego & CTP by State (2026)

Stamp Duty by State — Full Comparison Table (2025–26)

Stamp duty on vehicle transfers is set by each state and territory government, and rates are reviewed periodically with state budgets. The figures below reflect current rates as at March 2026 — always verify with your state's revenue office before finalising a purchase, as rates and thresholds can change with each budget. All examples are based on a private sale of a standard passenger vehicle.

Note: Rates marked with ★ Best represent the most competitive states for a $20,000 used car purchase.

Last updated March 2026. Stamp duty rates are set by state budgets and may change. Always confirm current rates with your state revenue authority before transfer. Calculations based on private sale of a standard passenger vehicle; dealer sales, luxury vehicles, and commercial vehicles may be calculated differently.

Which State Has the Cheapest Stamp Duty?

For a typical used car in the $15,000–$50,000 range, Western Australia and Queensland are consistently the cheapest states. WA's 2.75% rate beats every other state for vehicles under $25,000. Queensland's flat 3% rate is easy to calculate and applies up to $100,000 with no brackets. By contrast, Victoria — at approximately 4.2% — is the most expensive state for used car stamp duty in the mid-range price band. If you live in Victoria and are comparing a private purchase to a dealer purchase, be aware there is no way to avoid paying the full VIC rate on transfer regardless of where you bought the car.

The ACT offers the most dramatic saving specifically for EV buyers — zero duty on battery electric and plug-in hybrid vehicles makes a significant difference on an EV purchase that might otherwise attract $1,200–$2,000 in stamp duty on a $40,000–$50,000 vehicle.

Registration Transfer Fees by State

Beyond stamp duty, you will pay a registration transfer fee and, in most cases, a portion of the annual registration charge. Annual registration costs in Australia vary based on vehicle type (passenger car, SUV, commercial), weight, and in some states the vehicle's age. The table below shows indicative annual registration costs for a standard passenger car (up to 1,500 kg GVM) and the applicable transfer administration fee.

Important: When you transfer a vehicle, you pay the registration transfer fee plus any stamp duty. If the existing registration has already been paid by the seller, you will generally inherit the remaining registration period without paying the full annual amount again — you only pay the pro-rated shortfall if registering from scratch. Costs below are for a standard metropolitan passenger vehicle unless noted.

Annual registration figures are indicative for a standard private passenger vehicle (sedans/hatchbacks/wagons) up to approximately 1,500 kg. Costs for SUVs, utes, and vehicles above certain weight thresholds will be higher. All figures exclude comprehensive insurance. Last updated March 2026 — verify current rates with your state transport authority.

How Registration Transfer Actually Works

When you buy a used car in Australia, you do not automatically get the seller's remaining registration transferred to you for free. The process varies by state, but generally:

• Step 1: Both parties complete a vehicle transfer form (available from your state transport authority).
• Step 2: You pay the transfer administration fee and the applicable stamp duty at the transport authority or online.
• Step 3: If the vehicle is currently registered, you inherit the remaining registration period at no additional charge (in most states). If unregistered, you will pay for a new registration period.
• Step 4: You have generally 14 days from the date of sale to complete the transfer — do not delay, as driving an untransferred vehicle can create legal and insurance complications.

In Victoria and Queensland, a current roadworthy or safety certificate must be presented at transfer for most used vehicles. Budget $100–$250 for this if the car does not already have one.

CTP Insurance by State — Green Slips, TAC & More

Compulsory Third Party (CTP) insurance is the most misunderstood cost in Australian car ownership. Every state requires it, but the way it is structured, priced, and paid differs dramatically. In some states it is automatically part of your registration payment; in others it must be purchased separately before you can register or renew. Getting this wrong can leave you driving uninsured — which is both illegal and potentially catastrophically expensive if you are involved in a crash that injures someone.

CTP costs are approximate for a standard private passenger car with a driver over 25. NSW Green Slip prices can vary by $200+ depending on insurer, postcode, and driver age. Young drivers (under 25) typically pay significantly more. Last updated March 2026.

Why NSW CTP (Green Slip) Is Uniquely Expensive

New South Wales is the only state where CTP insurance is purchased entirely on a competitive open market, and prices vary substantially between insurers and postcodes. A 22-year-old driver in western Sydney could pay $700–$900 for their Green Slip, while the same vehicle owned by a 45-year-old in a regional area might cost under $400. The NSW Government operates a Green Slip Check price comparison tool (maca.nsw.gov.au) — always compare insurers before purchasing rather than just renewing with the same insurer.

In Victoria, the TAC levy is fixed and cannot be shopped around — however it is part of an unlimited compensation scheme that covers all injured parties regardless of fault, which provides significantly better protection than most competing-insurer models.

Worked Example — Total Cost of a $20,000 Used Car by State

What does it actually cost to buy a $20,000 used car in each state of Australia? Below we calculate the full upfront cost — purchase price plus stamp duty, registration transfer, and CTP — assuming you are taking over an already-registered vehicle and paying for one year of CTP. Comprehensive insurance is excluded (it varies too much by driver profile) but is essential to add to your budget.

The difference between the cheapest state (WA) and most expensive (VIC) is approximately $1,000–$1,050 on a $20,000 car — roughly 5% of the vehicle's value. That gap widens significantly on more expensive vehicles.

What About SA, TAS, ACT, and NT?

South Australia sits in the mid-to-expensive tier. The tiered stamp duty system (where the effective rate climbs to approximately $4/$100 for most vehicles over $2,000) means a $20,000 car attracts around $780 in stamp duty alone, making the total on-road cost approximately $21,858 including a reasonable CTP estimate and transfer fee.

Tasmania and the Northern Territory both use flat 3% stamp duty rates (same as QLD) and have relatively low annual registration fees, placing them mid-table at around $21,526–$21,538 all-in.

The ACT falls at approximately $21,726, reflecting its moderately competitive stamp duty structure for standard ICE vehicles. However, as noted, ACT is by far the cheapest state for EV purchases — a $45,000 EV would attract zero stamp duty in the ACT versus approximately $1,890 in VIC and $1,350 in NSW.

See our complete guide to buying a car in Australia for the full process, including how to negotiate the purchase price before these government charges are applied.

New vs Used Car Cost Differences

The cost structure changes significantly when you buy a new car from a dealer versus a used car through a private sale. Understanding these differences helps you build an accurate budget — and avoid being caught off-guard by charges that do not apply in private transactions.

Higher Stamp Duty on New and Luxury Cars

Most states calculate stamp duty on the market value of the vehicle, which for a new car is typically the full recommended retail price including GST. A $35,000 new car in VIC attracts approximately $1,470 in stamp duty (4.2%), versus $600 for a $20,000 used equivalent. On luxury vehicles above the Federal Government's Luxury Car Tax (LCT) threshold — $89,332 for fuel-efficient vehicles and $76,950 for other vehicles in 2025–26 — the effective cost base for stamp duty purposes is the full purchase price including the LCT component. A $100,000 luxury car in NSW attracts $5,000 in stamp duty (at the $5/$100 above-$45K rate).

Dealer Delivery and Establishment Fees

New car purchases from dealerships typically include a dealer delivery fee ranging from $500 to $1,500 — sometimes called a "Pre-Delivery Inspection" (PDI) fee or "on-road cost" component. This covers the dealer's cost of preparing the vehicle: fitting floormats, applying paint protection, conducting a final quality check, and filling with fuel. In some cases, dealers bundle additional accessories (window tinting, paint protection film) into this figure. Always ask for an itemised breakdown — the delivery fee is often partially negotiable.

Finance establishment fees are common when using dealer finance: expect $200–$400 added to the loan balance upfront. These are separate from the interest rate and can significantly affect the true cost of borrowing, particularly on short-term loans.

New Car Warranty — The Cost Offset

A new car typically comes with a manufacturer warranty of 3–7 years (many brands now offer 5+ years), which eliminates the risk of unexpected mechanical costs during the warranty period. When comparing a new car at a premium against a used alternative, factor in the avoided repair risk. A single significant repair on a used car — timing chain, transmission, injectors — can cost $2,000–$8,000, narrowing the effective price gap considerably.

Used Car Roadworthy Certificate (VIC and QLD)

In Victoria, a Roadworthy Certificate (RWC) is a legal requirement for transferring registration of most used vehicles. The seller is typically responsible for providing it, but if you are buying from a private seller who does not have one, you may need to fund it yourself — budget $150–$250 for a VIC RWC. In Queensland, the Safety Certificate serves a similar purpose and costs approximately $100–$200. In all other states and territories, there is no mandatory roadworthy requirement for a private transfer, though getting an independent inspection is always recommended.

Before you buy, run through our 50-point used car inspection checklist to ensure you are not purchasing a vehicle that will need immediate costly repairs.

Hidden Costs Most Car Buyers Miss

The stamp duty and registration conversation captures most buyers' attention — but there is a second tier of costs that frequently catches buyers off-guard. These charges can collectively add $500–$2,000+ to a vehicle purchase without appearing anywhere on the listing price.

Pre-Purchase Inspection ($150–$300)

An independent pre-purchase inspection (PPI) from a qualified mechanic is the single best investment in a used car transaction. Mobile inspectors (RACV, NRMA, RACQ, RAC, RAA, or an independent mechanic) will examine the vehicle comprehensively and provide a written report identifying defects, estimated repair costs, and safety concerns. Budget $150–$300 depending on your state and whether you use a motoring club or private inspector. For any vehicle over approximately $8,000, this cost is justified many times over — a single hidden issue can cost $1,000–$5,000+ to rectify.

Roadworthy / Safety Certificate ($100–$250)

As discussed above, Victoria and Queensland mandate a current Roadworthy Certificate (VIC) or Safety Certificate (QLD) for most used vehicle transfers. If the seller does not have one, you will need to factor this into your purchase price negotiation or post-purchase budget. In VIC, the RWC must be obtained within 30 days of the sale date from a licensed tester — budget $150–$250. In QLD, the Safety Certificate must be obtained from an Approved Inspection Station (AIS) and costs approximately $100–$200.

Finance Establishment Fees ($200–$400)

If you are financing your car purchase — whether through a dealer, bank, credit union, or specialist car finance company — virtually all lenders charge an establishment (origination) fee to set up the loan. These fees typically range from $200 to $400 and are either paid upfront or folded into the loan balance (where they attract interest). On a $20,000 loan over 5 years at 8% interest, adding a $300 establishment fee increases your total repayment by approximately $440 when interest is factored in.

Extended Warranty ($500–$2,000)

Dealers frequently upsell extended warranty products on used car purchases. These vary enormously in value — some are underwritten policies with genuine coverage, others are essentially dealer profit centres with extensive exclusion clauses. If offered, always ask for the full Product Disclosure Statement and read what is and is not covered before signing. An independent breakdown policy through a motoring club is often better value and more transparent.

First Service After Purchase

A used car that has been sitting on a lot or in a driveway may be overdue for a service. If the car's service history shows the last oil change was 12+ months ago or 10,000+ km, budget $150–$350 for a basic service shortly after purchase. Catching this early protects your investment and validates the vehicle's mechanical baseline. Some sellers will use an upcoming service as a negotiating chip — always check the logbook.

Toll Tag and Registration Holder Transfer

In toll-heavy cities (Sydney, Melbourne, Brisbane), a toll tag is effectively essential. Tolls charged to the previous owner's account after the sale date can create billing disputes that are surprisingly difficult to resolve. Ensure you have a toll account in place from day one — most providers offer free transponders with account signup. Also, ensure the registration is transferred promptly (within 14 days in most states) to avoid liability for any infringement notices issued before the transfer is processed.

Comprehensive Insurance Excess on First Claim

Technically not a purchase cost, but a financial risk worth planning for: most comprehensive car insurance policies carry an excess (deductible) of $500–$1,500 for standard claims. New driver or young driver excesses can add another $600–$1,200 on top. Before you buy, verify your policy excess and ensure your emergency fund can absorb a claim in the first few months of ownership, when you are still learning the vehicle's quirks.

Timing your purchase right can also save thousands — see our guide to the best time to buy a car in Australia, covering end-of-financial-year deals, model-year changeovers, and seasonal pricing patterns.

Frequently Asked Questions — Car Buying Costs