Motor tax rates for private cars

First: which table applies to your car

This is the whole difficulty, and every site that publishes one table of Irish motor tax rates has skipped it. There are three, and the one that governs your car depends on when it was first registered — not on what it emits, not on how old it looks.

There is a fourth case the Schedule handles explicitly and which is easy to miss: a car registered outside the State between July 2008 and December 2020 and brought in afterwards. Paragraph 6(o) puts it on the post-2021 table even though it is not a post-2021 car. If you have imported a used car, that is the paragraph to read.

Why it matters: the same emissions, two prices

A car emitting 140 g/km pays €210 a year on the post-2021 table and €280 on the 2008–2020 one. Same figure, same car shape, different registration window, a difference of €70 every year.

That is not an anomaly to be explained away — it is the point of having re-cut the bands. WLTP measures higher than NEDC for the same vehicle, so applying the old bands to a WLTP figure would have been a large stealth increase. The bands were widened to compensate.

The rates for cars registered from January 2021

Reading the bands

The band labels above are the statute’s own — “exceeding X but not exceeding Y” — rather than the ranges most reproductions use. That is deliberate, because it is the only phrasing that answers the boundary question: a car at exactly 140 g/km is in the band ending at 140, not the one starting after it. Getting that backwards moves every car sitting on a boundary one band up and quotes it a price that is the right shape and wrong.

The last two rows are not bands. The electric flat rate and the “unconfirmable” rate sit outside the band structure — the second one applies where the Revenue Commissioners cannot confirm a vehicle’s CO₂ figure from its EC type-approval certificate or certificate of conformity and are not satisfied of it from any other document produced on registration. It is the maximum rate, which is the incentive it is meant to be.

The Department of Transport does publish the proportions: the half-year payment is 55.5% of the annual rate, the quarterly 28.25%, and the monthly 10%. They are not in the Schedule that every rate above comes from. This site quotes them as the Department’s published statement and does not compute a part-year price from them — because presenting a published administrative figure as if it were the statute is exactly the move that makes a reference site untrustworthy in the one place it matters.

Source: Department of Transport, “Motor Tax Rates” — “the half-year payment is 55.5% of the annual rate, the quarterly payment is 28.25% of the annual rate, the monthly cost is 10% of the annual rate”.

The Act does not leave those proportions unbounded, and reading it is what shows the published figures are consistent rather than merely asserted. Section 1(2) lets the Minister prescribe part-year rates by regulation, subject to two limits: a rate “shall be such as to bear to the full annual duty no less proportion than the period of the licence bears to a year”, and the rate for “one quarter of the year only shall not exceed 30 per cent of the full annual duty”. So a quarterly rate must sit between 25% and 30%, and a half-year rate at or above 50%. The published 28.25% and 55.5% both fall inside those bounds. That is a check on the figures, not a source for them: the Act fixes the corridor and hands the number to the Minister.

Source: Finance (Excise Duties) (Vehicles) Act 1952, s. 1(2) (revised) — “a rate of duty so prescribed shall be such as to bear to the full annual duty no less proportion than the period of the licence bears to a year” and “the rate of duty so prescribed for a licence for a vehicle for one quarter of the year only shall not exceed 30 per cent of the full annual duty”.

Where you actually pay it

On motortax.ie, which is the State’s own service, or at a motor tax office. This site is a reference for the rates and has no transaction, no forms and no affiliation. It cannot tell you what your specific vehicle is taxed at either — that depends on the CO₂ figure and registration date on your own vehicle registration certificate.

Questions people ask

How is motor tax calculated in Ireland?

It is not calculated, it is looked up. A private car falls into a band, and the band has a fixed annual figure set out in the Schedule to the Finance (Excise Duties) (Vehicles) Act 1952. Which table of bands applies depends on when the car was first registered.

Why does my car cost more than an identical newer one?

Because CO₂ is measured differently before and after 2021 and the bands were re-cut when the measurement changed. A car registered between July 2008 and December 2020 is taxed on the NEDC figure against one set of bands; a car registered from January 2021 is taxed on the WLTP figure against another. The same number of grams can sit in differently-priced bands.

What is motor tax on an electric car in Ireland?

An electrically propelled car has its own flat rate in the Schedule. It is the same figure as the 0 g/km CO₂ band, but it reaches that figure by a different route in the legislation.