Mileage reimbursement calculator

Calculate mileage reimbursement with your own rate, IRS rates by travel date or French passenger car tables. Check distance units, sources and validity periods.

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Set your data

Mileage method

Distance

Vehicle model and specification

Annual mileage used in the ACI statement (km)

Kilometre cost from the ACI statement (€/km)

Date of the ACI statement consulted

I checked the vehicle, annual mileage, date and kilometre cost in the ACI service.

Distance unit

Rate per distance unit

Currency

Travel date

Purpose

French tax declaration year

Fiscal horsepower (CV; 3 = up to 3, 7 = 7 or more)

Powertrain

Agreed reimbursement and tax deductibility are separate. Custom mode does not apply national tax tables. French electric coefficients are the published values, already increased and rounded.

Look up your vehicle’s operating cost in the ACI service, then copy the statement details. The official service requires digital identification. Open the official ACI service

Enter miles for IRS and annual kilometers for France. Custom calculations use your chosen rate and distance unit.

IRS rates provide an estimate; they do not determine an employer’s reimbursement obligation or eligibility for a tax deduction.

France: passenger cars only, one vehicle at a time. Declaration 2026, mileage in 2025; tolls and parking excluded.

Result

Enter your inputs and calculate.

Applied formula

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How to use the tool

For Italy, consult ACI and enter the statement’s vehicle, annual mileage, date and cost per km.
Confirm the data and enter the kilometres to reimburse.
Choose a custom rate, USA or France.
For IRS select travel date and purpose; for France enter a single car’s annual kilometers, fiscal horsepower and powertrain.

Method and principles

Custom and IRS: distance × rate.

France: d × band coefficient + fixed amount.

Bands cover up to 5000, over 5000 to 20000, and over 20000 km.

For ACI use the rate, vehicle and annual mileage from the same statement.

IRS uses miles; the French method uses annual km for one vehicle.

Formula and limits

Agreed reimbursement and tax deductibility are separate. Custom mode does not apply national tax tables. French electric coefficients are the published values, already increased and rounded.

Example

France, declaration 2026: combustion car, 6 CV and 4000 km → €2660. Electric car, 5 CV and 10000 km → €5954 using the published coefficients.

Practical example

Input

Mileage method: Custom rate
Distance: 100
Distance unit: Kilometers
Rate per distance unit: 0.3
Currency: USD

Result

$30.00

Custom and IRS: distance × rate. France: d × band coefficient + fixed amount. Bands cover up to 5000, over 5000 to 20000, and over 20000 km.

Result details

Result details
Parameter	Value
Mileage method	Custom rate

Limits and checks

Limits and checks
Parameter	Value
Distance	≥ 0; ≤ 1000000000000
Rate per distance unit	≥ 0; ≤ 1000

Sources

Frequently asked questions

Can I combine mileage from different cars?

For the French table, calculate each vehicle separately, then add the amounts. Do not apply a single mileage band to the combined distance.

Where are my inputs processed?

Calculations run in your browser. Entered amounts are not sent to the server.