Motor tax calculator (Ireland, 2026)

How much motor tax a car costs a year, a half-year and 3 months, from the official rates. Works for cars registered before 2008 (by engine size), 2008–2020 and 2021 on (by CO2).

The CO2 figure is on the car's logbook (Vehicle Licensing Certificate). Without it, the calculator estimates CO2 from the engine size and fuel, so it shows "about". Cars registered in the first half of 2008 can be on either basis.

Examples

The official rates

Cars registered before July 2008 (engine size)

Cars registered July 2008 to 2020 (CO2)

Cars registered from 2021 (WLTP CO2)

Source: Department of Transport, rates of duty on motor vehicles (effective 1 January 2021), unchanged in Budget 2026. Half a year is 55.5% of the annual rate and 3 months 28.25%. Electric cars: €120 a year. Check your exact amount at motortax.ie.