New Golf 1.5 TSI (8 fiscal hp, 96 kW, 125 g) in Brussels
Registration tax
€634.89
Free calculator · Regional taxes · 2026
Registration tax (TMC / BIV) calculator
Three regions, three formulas. Enter the car’s characteristics: the calculator gives the registration tax of your region and compares it with the other two, for a new vehicle as for a used one.
Your parameters
Examples:
fiscal hp
kW
Box P.2 of the registration certificate. The higher bracket between fiscal hp and kW is retained.
g/km
Non-indexed federal rate, even in Flanders.
Result
Registration tax
€634.89
The same vehicle in each region
| Region | Registration tax |
|---|---|
| Brussels-Capital | €634.89 |
| Wallonia | €454.59 |
| Flanders | €254.33 |
Calculate the full true cost
The full calculation adds road tax, energy, loss of value and the tax saving: the true monthly cost of this car, in your region.
Worked examples 2026
Calculated by the same engine as the full true cost calculation, never estimated by an AI.
2022 BMW 320d (11 fiscal hp, 140 kW, 130 g, 2,070 kg) in Wallonia
Registration tax
€1,665.90
- Age retained at registration
- 4
New Tesla Model 3 (208 kW) in Flanders, 2026
Registration tax
€61.50
How it is calculated
Brussels: federal rate by bracket (fiscal hp or kW, whichever is higher) × 1.2826, decreasing with age, minimum €78.88 Wallonia: base amount (bracket) × CO2 / 136 × MAM / 1,838 × energy coefficient, between €50 and €9,000, decreasing with age Flanders (BIV): indexed CO2 / Euro standard / age formula; electric: €0 before 2026, flat €61.50 since
The registration tax is due once, when the vehicle is registered in your name. Since regionalisation, each region has its own formula: Brussels indexes the federal rate based on power; Wallonia corrects this rate by the vehicle’s CO2 and mass (2025 reform); Flanders applies its BIV based on CO2 and Euro standard.
For a used car, the tax is reduced according to the vehicle’s age (10% per year in Brussels and Wallonia down to a floor; coefficient by age bracket in Flanders). Vehicles on renting stay at the non-indexed federal rate, as regional autonomy does not apply to leasing companies.
The calculator uses the exact function of the TCO engine. The tables are published on the rates page and checked against the regional simulators.
Frequently asked questions
Which region has the most expensive registration tax?
It depends on the vehicle. For a compact petrol car of 8 fiscal hp / 96 kW, Brussels charges €634.89, Flanders a few hundred euros depending on CO2, and Wallonia an amount that climbs quickly with CO2 and mass. For a heavy diesel SUV, Wallonia is the most expensive; for an electric car, Flanders remains the cheapest.
Does an electric car pay registration tax?
In Brussels, the minimum of €78.88 (€61.50 indexed). In Wallonia, the minimum of €50. In Flanders, €0 for a registration before 2026, then the flat €61.50 since 1 January 2026.
How is the registration tax of a used car reduced?
In Brussels and Wallonia, the amount falls by 10% per year of age (55% at 5 years, 35% at 9 years) down to the indexed floor of €61.50 from 15 years. In Flanders, an age coefficient applies within the BIV formula.
Do the MAM and the Euro standard really change the amount?
Yes. In Wallonia, the maximum authorised mass directly weights the amount since 2025: 2,100 kg instead of 1,838 kg raises the registration tax by 14%. In Flanders, the Euro standard and the particulate filter set the class of the BIV formula.
Why is the registration tax different on renting?
The vehicle is registered by the leasing company, to which regional autonomy does not apply: the non-indexed federal rate is due, with no electric exemption, even in Flanders.
Going further
registration tax · regions
Registration tax 2026-2027: Brussels, Wallonia or Flanders, which taxes your car the most?
Brussels registration tax, the Walloon CO2 and mass formula, the Flemish BIV: the three regimes compared using 2026-2027 rates, with worked examples for petrol, diesel, SUVs and EVs.
7 min read
taxation · Brussels
Brussels car tax reform: what impact on the cost of your car?
Electric cars and small city cars exempt from road tax, higher registration tax for heavy SUVs, a vignette in 2027: what the Brussels reform really changes to your TCO.
7 min read