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Motor Tax based on CO2 emissions

Motor Tax based on CO2 emissions

Carbon Dioxide (CO2) Motor Tax System for New Cars

From July 2008 there are two separate motor tax systems for cars. Cars under the existing motor tax system continue to be taxed based in engine size (c.c.). New cars registered from 1 July 2008 are taxed based on their CO2 emissions level.

Cars Registered Outside of Ireland

A private car first registered abroad prior to 1 January 2008 is taxed on engine size (c.c.). The CO2 based motor tax system does not apply to second-hand imports that were registered abroad prior to 2008.

A private car first registered abroad between 1 January 2008 and 30 June 2008 inclusive and subsequently registered in Ireland is taxed on whichever is the lesser of the motor tax rates based on engine size (c.c.) or CO2 emissions.

A private car first registered abroad after 1 July 2008 and subsequently registered in Ireland is taxed on CO2 emissions.

The aim of CO2 motor tax system is to encourage the use of smaller, cleaner, fuel-efficient cars in the fight against climate change by reducing the emission of carbon dioxide (CO2) from cars to help protect the environment and improve local air quality. 

Cars registered before 2008 (i.e. cars in the current motor tax system before 2008) will continue to be taxed under the existing system related to engine size (cc). 

Click here for Motor Tax Rates

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