Question 1

How is annual business mileage calculated in Ireland?

Accepted Answer

Your yearly business mileage is simply your per-trip distance multiplied by how often you make the journey. This calculator does that, then applies the progressive civil-service rates across the four annual bands (0–1,500 km, 1,501–5,500 km, 5,501–25,000 km, and 25,001 km+), so the higher-value early bands and the lower later bands are all reflected in the total.

Question 2

Why does my mileage rate drop as I drive more?

Accepted Answer

Irish civil-service motor-travel rates are progressive. Band 2 (1,501–5,500 km) actually pays the highest rate, then bands 3 and 4 fall away sharply. So the first several thousand business kilometres of the year are worth far more per km than the rest — which is why projecting the full year matters.

Question 3

What should I use for weeks per year?

Accepted Answer

Use the number of weeks you actually make the trip. We default to 46 to allow for annual leave, bank holidays and quieter periods, but adjust it to match your real pattern — a school-term route might be 38–39 weeks, a year-round commute closer to 48.

Question 4

Does opening year-to-date km matter?

Accepted Answer

Yes. If you have already claimed business km this year on the same vehicle, enter it as the opening figure so the projection starts in the correct band. Leaving it blank assumes you start the year from zero.

Question 5

Is this an exact figure I can claim?

Accepted Answer

It is a planning estimate using current civil-service rates. Your actual claim depends on real journeys, correct business purpose, and your employer applying the rates properly — including the commute "lesser of" rule where a trip starts from home. Keep a proper mileage log for every trip.

Annual MileageCalculator Ireland

Your recurring trip

Projected for the year

How the projection works

Frequently asked questions

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