Stamp Duty · Calculator

Vehicle Stamp Duty on $20,000 Car in Australian Capital Territory

Vehicle stamp duty on a $20,000 car in Australian Capital Territory is $600 (3.00%). Compare car stamp duty across all states. 2025-26 rates.

Motor Vehicle Duty $600.00 ACT duty on a $20,000 vehicle
Effective rate 3.00%
Vehicle value $20,000
Cheapest state WA ($550)

Duty Breakdown

Vehicle value $20,000
Motor Vehicle Duty (ACT) $600.00
Effective duty rate 3.00%

The ACT's emissions-based system rewards low- and zero-emission vehicles: Category AAA (zero-emission) cars pay the lowest rate, while high-emission Category D cars pay the most.

How ACT calculates vehicle stamp duty

From 1 September 2025 the ACT charges Motor Vehicle Duty using emissions-performance categories (AAA to D) combined with value brackets at $45,000 and $80,000. A mid-range Category B car pays $3.00 per $100 up to $45,000, then more above. Cleaner vehicles (AAA/AA) pay less; high-emission (D) vehicles pay more. A flat $8 per $100 applies to all categories above $80,000.

At $20,000, you're in the budget and used-car range, where most states apply their lowest duty tier.

ACT Motor Vehicle Duty rate tiers

Value band Rate
Category AAA (zero-emission), to $45k $2.50 per $100
Category B (mid), to $45k $3.00 per $100
Category D (high-emission), to $45k $4.53 per $100
All categories, over $80,000 $8.00 per $100 on the excess

The ACT is the only jurisdiction to set car duty primarily on emissions performance rather than value alone, though a flat $8 per $100 applies to every category above $80,000.

Compare Nearby Vehicle Values in ACT

Vehicle Value Stamp Duty Effective Rate
$15,000 $450.00 3.00%
$20,000 $600.00 3.00%
$25,000 $750.00 3.00%

Compare $20,000 Car Across All States

Standard passenger vehicle. Sorted cheapest to most expensive.

Buying in WA instead of VIC saves $290 in stamp duty on a $20,000 vehicle.

Frequently asked questions

How much is stamp duty on a $20,000 car in ACT?
Stamp duty on a $20,000 vehicle in Australian Capital Territory is $600. This represents an effective rate of 3.00% of the vehicle's value. This applies to a standard passenger vehicle — rates may vary for commercial vehicles, motorcycles, or EVs depending on the state.
Which state has the cheapest stamp duty on a $20k car?
For a $20,000 vehicle, Western Australia has the lowest stamp duty at $550 (2.75%). The most expensive is Victoria at $840 — a difference of $290.
When do I pay vehicle stamp duty in ACT?
In Australian Capital Territory, vehicle stamp duty (Motor Vehicle Duty) is typically paid when you register or transfer a vehicle into your name. For new vehicles from a dealer, it's usually included in the on-road costs. For private sales, you pay when transferring registration.
How do emissions categories affect ACT car duty?
The ACT assigns each vehicle an emissions category from AAA (zero-emission) to D (high-emission). Cleaner categories pay a lower rate per $100 below $80,000 — for example $2.50 (AAA) versus $4.53 (D). This page uses a mid-range Category B vehicle.
Do electric vehicles pay the least duty in the ACT?
Zero-emission vehicles fall into Category AAA, which carries the lowest rate ($2.50 per $100 below $45,000). Above $80,000, however, all categories pay the same $8 per $100 on the excess.
Is vehicle stamp duty the same as property stamp duty?
No. Vehicle stamp duty and property stamp duty are completely separate taxes with different rates. Vehicle duty is generally much lower — typically 3-5% of the vehicle's value compared to up to 5-7% for property.

Need a custom calculation?

Our interactive Vehicle Stamp Duty Calculator lets you enter any vehicle value and select vehicle-specific options (engine type, emissions category, EV concessions) for a precise estimate.

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State Stamp Duty Effective Rate
WA $550.00 2.75%
NSW $600.00 3.00%
QLD $600.00 3.00%
TAS $600.00 3.00%
NT $600.00 3.00%
ACT $600.00 3.00%
SA $740.00 3.70%
VIC $840.00 4.20%