Road Tax IE Calculator
Estimate Irish motor tax for private cars using CO2, engine size, or electric vehicle rules.
What this road tax IE calculator does
This calculator helps you estimate Irish motor tax (often called road tax) for private cars. In Ireland, the amount you pay each year can depend on when the vehicle was first registered and how it is classified. Most modern cars are taxed by CO2 emissions, while many older cars are taxed by engine size.
The tool above gives a quick estimate for annual, six-month, or three-month payment periods. It is designed for clarity and speed, so you can budget before renewing tax online or at a motor tax office.
Which tax system applies to your car in Ireland?
1) CO2-based tax (most cars registered from 1 July 2008 onward)
If your car falls into the emissions system, your annual tax is linked to grams of CO2 per kilometre. Lower-emission cars generally pay less than higher-emission vehicles.
2) Engine-size tax (many cars registered before 1 July 2008)
Older vehicles are usually taxed by engine capacity in cubic centimetres (cc). A larger engine generally means a higher annual tax charge.
3) Electric vehicle rate
Fully electric private cars generally qualify for a reduced flat motor tax rate. In this estimator, that flat annual amount is applied directly.
CO2 bands used in this calculator
| CO2 Band | Emissions (g/km) | Annual Tax (€) |
|---|---|---|
| A1 | 0–80 | 120 |
| A2 | 81–100 | 180 |
| A3 | 101–110 | 190 |
| A4 | 111–120 | 200 |
| B1 | 121–130 | 270 |
| B2 | 131–140 | 280 |
| C | 141–155 | 390 |
| D | 156–170 | 420 |
| E | 171–190 | 600 |
| F | 191–225 | 790 |
| G | Over 225 | 1250 |
Engine-size bands used in this calculator
For the pre-2008 engine-capacity system, this calculator uses the following annual private car rates:
- Up to 1,000cc: €199
- 1,001–1,100cc: €299
- 1,101–1,200cc: €330
- 1,201–1,300cc: €385
- 1,301–1,400cc: €420
- 1,401–1,500cc: €440
- 1,501–1,600cc: €514
- 1,601–1,700cc: €544
- 1,701–1,800cc: €636
- 1,801–1,900cc: €673
- 1,901–2,000cc: €710
- 2,001–2,100cc: €906
- 2,101–2,200cc: €951
- 2,201–2,300cc: €994
- 2,301–2,400cc: €1,034
- 2,401–2,500cc: €1,080
- 2,501–2,600cc: €1,294
- 2,601–2,700cc: €1,345
- 2,701–2,800cc: €1,391
- 2,801–2,900cc: €1,443
- 2,901–3,000cc: €1,494
- Over 3,000cc: €1,809
How to use the calculator
- Select the tax system that matches your vehicle.
- Enter either CO2 emissions (g/km) or engine size (cc).
- Choose a payment period: 3, 6, or 12 months.
- Click Calculate road tax to see your estimate instantly.
Budgeting tips for motor tax in Ireland
Pay annually when possible
Quarterly and half-year options are useful for cash flow, but they often cost more over the year. If your budget allows, annual payment can reduce overall cost.
Check details before renewal
Errors in registration date, CO2 figure, or vehicle class can lead to wrong estimates. Always verify your Vehicle Registration Certificate details first.
Know other ownership costs
Road tax is only one part of ownership. Also plan for insurance, NCT/maintenance, servicing, tyres, fuel/charging, and depreciation.
Frequently asked questions
Is this an official government calculator?
No. It is an independent estimator designed to help with quick planning.
Can I use this for vans, motorcycles, or commercial vehicles?
Not reliably. Those categories often use different tax classes and rules. Check official guidance for those vehicle types.
Why might the final amount differ from my estimate?
Official rates can change, and some vehicles fall under special classifications or newer emissions methods. Use this page as a guide, then confirm your exact bill through official channels.