About this free calculator
This free version handles domestic Irish travel with trips up to 500 km (1000 km with return). The full tracker adds foreign subsistence (EU & overseas), mixed-mode trips with cross-border auto-detection, unlimited distances, year-round history, Excel / PDF / ERR / Audit-Trail exports, and approval workflows with email notifications.
Expense Calculator
Trip Information
Calculation Results
Step 1 — Where are you going?
Enter your start and destination. We'll map the route and pull the distance automatically, then your mileage allowance appears right here.
Rates synced from Irish Revenue via Expense.ie API · Circular 16/2022
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How we calculate these figures
Every result uses the official Irish civil-service rates — here's exactly which rules we apply and where they come from.
Mileage
Progressive 4-band civil-service motor-travel rates set by Revenue Circular 16/2022, in effect since 1 September 2022. Rates are applied by engine category (CC) and your cumulative kilometres for the tax year, so higher annual mileage automatically crosses into the correct band. Fully electric vehicles use Category B rates; motorcycles use the separate M1–M4 bands.
Subsistence
Current civil-service domestic subsistence rates: the day allowance for 5–10 hours and 10+ hours away, and the tiered overnight rate (standard for the first 14 nights, reduced for nights 15–28, detention thereafter). The 29+ hour combined allowance adds a day rate to an overnight where it applies.
Distance rules
The 8 km rule — you must be at least 8 km from both home and your normal place of work to claim subsistence — and the 100 km common-practice threshold for overnight subsistence. The calculator uses trip distance as a proxy and flags where a claim may not qualify; confirm your actual distances before claiming.
Tax saving
The tax-saving figure assumes a higher-rate taxpayer on a ~52.1% marginal rate (40% income tax + 4.1% PRSI + 8% USC). Standard-rate taxpayers save less. These allowances are reimbursements, not income — paid tax-free when the conditions are met.
Rates per Revenue Circular 16/2022 (motor travel) and the current civil-service subsistence rates. Last reviewed January 2026. This is an estimate, not tax advice.
Expert Tips forMaximum Claims
Professional guidance to ensure compliance and maximize your legitimate expense claims
Keep Detailed Records
Maintain a logbook with dates, destinations, business purpose, and odometer readings. Digital records are acceptable but must be backed up. Retain all records for at least 6 years as required by Revenue.
Know Your Engine Category
Check your vehicle registration document for engine size. Fully electric vehicles qualify for Category E rates (same as Category B). Hybrid vehicles use the category matching their actual engine CC. Motorcycles use a separate 2-band system (M1-M4).
Time Your Dublin Trips
For Dublin overnight stays, the civil service arrangement is vouched accommodation (actual receipted cost up to a €205.53 cap) plus a separate €46.17 meal allowance. Keep receipts for all meals and accommodation.
8km Rule for Subsistence
You must be at least 8km from both your home and your normal place of work to claim subsistence allowances. GPS logs or route planners can help prove this distance if queried by Revenue.
Progressive Mileage Bands
Rates change as your annual mileage increases. Track cumulative kilometers carefully — our platform does this automatically for every vehicle, and you can set opening year-to-date km when joining mid-year so the bands stay correct from day one.
Commute Deduction
Your normal commute is not a business journey. If a business trip starts from home, Revenue's "lesser of" rule means the claim is based on the shorter of home-to-destination or office-to-destination. Our full platform applies this automatically.
FrequentlyAsked Questions
Everything you need to know about Irish travel expenses, mileage rates, and subsistence allowances
Want to understand how the progressive band rates are applied? See our Complete Mileage Rates Guide with worked examples, or read the step-by-step calculation guide.
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