WA · Motor vehicles · FY 2026-27
WA car stamp duty calculator
WA is the only state whose rate is a formula, not a table: 2.75% under $25,000, then a rate that slides up continuously — R = 2.75 + (value − 25,000) ÷ 6,666.66 — until it pins at 6.5% from $50,000, the steepest standard top rate in the country. This calculator reproduces RevenueWA's own rounding, down to the 5-cent floor.
Rates verified against the official sources — how we check.
Your tally
That's 3.50% of the price, on top of the sticker.
Duty only — rego transfer fees (typically $20–$50) are extra, and exemptions vary. Confirm with WA Treasury before relying on it.
How WA charges vehicle duty
Between $25,000 and $50,000 the rate itself moves with the price — every extra $6,666.66 of car adds a full percentage point. A $30,000 car pays about 3.5%, a $40,000 car about 5%, a $50,000 car the full 6.5%. There are no brackets to game; the slide is continuous.
Two rounding quirks matter for matching RevenueWA to the cent: the sliding rate is rounded to two decimals before it is applied, and the resulting duty is floored to the nearest 5 cents. We probed the official calculator to confirm both (a $35,050 car comes out at exactly $1,493.10).
Above $50,000, 6.5% of the whole value makes WA the dearest place in Australia to stamp an expensive car — $6,500 per $100,000 of vehicle. Unlike the eastern states there is no engine, emissions or luxury distinction: one schedule for every light vehicle. Dealer delivery charges are expressly excluded from dutiable value.
WA vehicle licence duty (light vehicles)
| Value / vehicle | Duty |
|---|---|
| Up to $25,000 | 2.75% of dutiable value |
| $25,000 – $50,000 | R% of the whole value, R = 2.75 + (value − 25,000) ÷ 6,666.66 |
| Over $50,000 | 6.5% of dutiable value |
The sliding R is rounded to 2 decimals, and the duty is then rounded DOWN to the nearest 5 cents — both quirks verified against RevenueWA’s own calculator.
Worked examples
- $20,000 used hatch: $550 of duty. Flat zone — 2.75%.
- $40,000 mid-size SUV: $2,000 of duty. Mid-slide — the rate itself is now about 5%.
- $80,000 LandCruiser: $5,200 of duty. Top rate: 6.5% of the whole price.
WA duty at a glance
| Price | All light vehicles |
|---|---|
| $20,000 | $550 |
| $30,000 | $1,050 |
| $45,000 | $2,587.50 |
| $60,000 | $3,900 |
| $80,000 | $5,200 |
Every figure comes from the same tested engine as the calculator above — the published schedule, not a percentage approximation.
The same $40,000 car, everywhere else
| Jurisdiction | Duty at $40,000 | Typical case |
|---|---|---|
| NSW | $1,200 | passenger car |
| VIC | $1,680 | petrol passenger car |
| QLD | $1,200 | 1–4 cylinder car |
| WA — this page | $2,000 | light vehicle |
| SA | $1,540 | passenger car |
| TAS | $1,600 | passenger car |
| ACT | $1,200 | new category-B car |
| NT | $1,200 | any vehicle |
Exemptions in Western Australia
Caravans are exempt, along with spouse/de-facto transfers, deceased estates and eligible charitable or off-road farm vehicles. Dealer delivery charges are excluded from dutiable value — one small mercy at the 6.5% end.
Frequently asked questions
How is WA vehicle duty calculated between $25,000 and $50,000?
Why is WA the most expensive state for luxury cars?
Do electric vehicles get a duty discount in WA?
Are caravans dutiable in WA?
Keep tallying
Sources
Rates last verified 2026-08-28 for FY 2026-27. General information only — not financial or tax advice.