VRT CO₂ Emission Bands 2026

The comprehensive 20-band roadmap. Master the technical shift from NEDC to WLTP and discover how Irish tax law penalizes high-emission vehicles.

1. The 20-Band Hierarchy

Since January 1, 2021, Ireland has operated a 20-band CO₂ structure for Category A vehicles. Unlike previous systems which had broad categories (A1, A2, etc.), the current system is highly sensitive to even a 1g/km difference in emissions.

"A car emitting 110g/km pays 13.5%, while a car emitting 111g/km jumps to 15.25%. That 1 gram difference can cost hundreds of euros on a premium vehicle."

The Progressive Curve: Why Jumps Get Steeper

The VRT system is designed to be exponential. In the first 5 bands, the rate increases by only 0.75% per band. However, once you cross the 140g/km threshold (Band 15), the jumps increase to 2.5% or even 5% per band. This "cliff-edge" taxation is intended to make high-emission luxury vehicles prohibitively expensive.

// Technical Sweet Spots:

  • Band 1: < 50g/km (7%) - The PHEV/EV Gold Standard.
  • Band 8: 110g/km (13.5%) - The Petrol "Efficiency Wall".
  • Band 16: >146g/km (25%+) - The "Luxury Surcharge" Zone.

2. Technical: WLTP vs. NEDC

WLTP (Standard)

The Worldwide Harmonised Light Vehicle Test Procedure is a rigorous, longer test cycle. It accounts for optional extras which add weight and drag, meaning the same car model will have a higher CO2 rating under WLTP than it did under NEDC.

The 'Uplift' Problem

Most imports from the UK (pre-2021) only have NEDC values on the V5C. Revenue does NOT use these raw numbers. They apply a mathematical uplift to simulate what that car WOULD have emitted if tested under WLTP.

The Revenue 'Uplift' Logic

For vehicles without a WLTP value, Revenue uses the following parity formula:

CO2 Uplift Calculation:
NEDC Value × 1.15 to 1.35 = WLTP Equivalent

This "taxation by simulation" is why many drivers are shocked to find their 99g/km "VRT Zero" car from 2018 is now taxed at 120g/km or higher in Ireland.

Historical Context: The 2026 Shift

In 2021, the top VRT rate was 37%. By 2026, this has risen to 41%. The goal is clear: to phase out internal combustion engines (ICE) entirely. If you are importing a performance car today, you are likely paying almost double the VRT compared to a similar import in 2019.

3. Official 2026 VRT Bands Table

Band CO₂ (g/km) VRT Rate
1 0 - 50 7.00%
2 51 - 80 9.00%
3 81 - 85 9.75%
4 86 - 90 10.50%
5 91 - 95 11.25%
6 96 - 100 12.00%
7 101 - 105 12.75%
8 106 - 110 13.50%
9 111 - 115 15.25%
10 116 - 120 16.00%
11 121 - 125 16.75%
12 126 - 130 17.50%
13 131 - 135 19.25%
14 136 - 140 20.00%
15 141 - 145 21.50%
16 146 - 150 25.00%
17 151 - 155 27.50%
18 156 - 170 30.00%
19 171 - 190 35.00%
20 > 190 41.00%

Commercial Bands (Category B & C)

Commercial vehicles do NOT follow the 20-band CO₂ structure. Instead, they use a simplified technical valuation:

Category B (Vans)

Flat rate of 13.3% of OMSP. Minimum charge of €125. CO2 levels are irrelevant for the VRT percentage here.

Category C (Trucks)

Flat fee of €200 per vehicle. This applies to heavy goods vehicles over 3,500kg.

Calculate Your Specific Rate

Enter your car details to find out exactly which band you fall into and what it costs.

Go to Calculator

Emission Band Deep-Dive FAQs

Can I use a low CO2 figure for a PHEV? +

Yes, Plug-in Hybrids often fall into Band 1 (under 50g/km). However, Revenue may check the battery capacity and electric range to ensure it meets the legal definition of a high-efficiency hybrid before granting the 7% rate.

What is the 'Band 9 Threshold'? +

The jump between Band 8 (13.5%) and Band 9 (15.25%) is one of the most significant. Many family hatchbacks hover around this 110-111g/km line. Careful selection of wheel size (smaller wheels = lower CO2) can sometimes keep a car in Band 8.

Do vintage cars follow these bands? +

No. Vehicles over 30 years old are charged a flat VRT rate of €200 and are entirely exempt from the CO2-based percentage bands and the NOx levy.

Swapnil Sanghvi

Author & Founder | Vehicle Tax Expert

Swapnil is a leading expert in Irish vehicle taxation. He created VRT Calculator Ireland to help drivers understand the complex VRT tax bands, exemptions, and import rules.

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