2026 CO2 & weight malus
Vehicle details
Enter the vehicle details to calculate applicable malus
- CO2 (g/km): box V.7 on the French registration certificate
- Weight: box G.1 (unladen mass)
- Or on the manufacturer spec sheet
Understanding 2026 malus — full guide
CO2 malus
The CO2 malus (registration tax) is due on first registration of a new vehicle or an imported used one. It is based on WLTP emissions in box V.7 of the French registration certificate.
- 2026 threshold: 108 g/km (€50) — unchanged vs 2025
- Maximum: €80,000 from 192 g/km
- Fully electric cars (BEV) are fully exempt
- Applies to passenger cars (M1) — not N1 vans
Source: CIBS art. L421-62 to L.421-64 · Act n°2025-127 of 14 Feb 2025
Weight malus
The mass malus applies above 1,500 kg (threshold lowered from 1,600 kg on 1 January 2026). It is calculated in marginal progressive bands on the excess kilograms.
- Based on mass in running order (box G.1)
- 100 kg allowance for full hybrids (HEV)
- Up to 200 kg allowance for plug-in hybrids (PHEV)
- Large family (≥3 children): −200 kg per child from the 3rd
- Can be combined with the CO2 malus, capped at €80,000 in total
Progressive scale — each figure is the total amount for that exact WLTP rate (not a marginal rate).
| CO2 (g/km) | Total malus | CO2 (g/km) | Total malus |
|---|---|---|---|
| < 108 | 0 € | 151 | 4 543 € |
| 108 | 50 € | 152 | 4 818 € |
| 110 | 100 € | 155 | 5 715 € |
| 115 | 210 € | 160 | 8 770 € |
| 120 | 310 € | 165 | 14 325 € |
| 125 | 540 € | 170 | 22 380 € |
| 130 | 983 € | 175 | 32 935 € |
| 135 | 1 504 € | 180 | 45 990 € |
| 140 | 2 205 € | 185 | 61 245 € |
| 145 | 3 119 € | 175 | 32 935 € |
| 150 | 4 279 € | 190 | 76 800 € |
| 155 | 5 715 € | ≥ 192 | 80 000 € |
Key values — use the calculator above for the exact amount for your vehicle.
Marginal progressive calculation: each band is taxed only on the excess kg in that band.
| Mass band | Rate | Example (kg in the band) |
|---|---|---|
| ≤ 1 500 kg | 0 €/kg | No malus |
| 1 500 – 1 699 kg | 10 €/kg | 200 kg × 10 = 2 000 € |
| 1 700 – 1 799 kg | 15 €/kg | 100 kg × 15 = 1 500 € |
| 1 800 – 1 899 kg | 20 €/kg | 100 kg × 20 = 2 000 € |
| 1 900 – 1 999 kg | 25 €/kg | 100 kg × 25 = 2 500 € |
| ≥ 2 000 kg | 30 €/kg | Ex: 2,100 kg → 2,000 + 1,500 + 2,000 + 2,500 + 3,000 = €11,000 |
Band 1,500→1,700 kg: 200 kg × €10 = €2,000
Band 1,700→1,750 kg: 50 kg × €15 = €750
→ Weight malus = €2,750 (+ CO2 malus according to emissions)
Fully exempt from CO2 and weight malus, whatever the mass or emissions.
Flat 100 kg mass allowance for the weight malus only. The CO2 malus still applies.
min(200 kg, 15% of weight) mass allowance for the weight malus. The CO2 malus uses the declared WLTP rate.
≥ 3 dependent children: −200 kg per child from the 3rd, stackable with the powertrain allowance. Not applicable to BEVs.