Keeping track of mileage – why it's important

Do you use a company car or drive your private car for business? Then it is essential to keep a mileage log . This allows you to avoid taxable benefit , claim business mileage, and meet the requirements of the Tax and Customs Administration.

Why keep a mileage log?

If you drive a company car and cover less than 500 kilometers privately per year , you do not have to pay any taxable benefit. In 2026, the taxable benefit percentage is 22% of the list price for all cars. However, you can only avoid this taxable benefit if you can provide the Tax and Customs Administration with a complete mileage log .

Do you drive business kilometers in your private car? Then a mileage log is also important. In 2026, the tax-free mileage allowance amounts to €0,23 per kilometer . Read more about what a complete mileage log looks like.

How can you keep a mileage log?

There are two ways to keep track of your mileage:

Manually with Excel

You can keep track of your trips manually in an Excel file or notebook. This is suitable if you make few business trips and want to maintain an overview. Disadvantage: it is prone to errors, and a forgotten trip can cost you dearly. Read more about all the ways to keep a mileage log.

Automatically with a GPS system (recommended)

With a certified mileage tracking system , such as the TrackJack PRO Fiscaal or the TrackJack GO!, all your trips are automatically recorded via GPS. No manual work, no forgotten trips, and always fiscally compliant. Always choose a system that meets the Mileage Tracking Systems Quality Mark , because only then will the Tax and Customs Administration accept your registration without question.

What are the requirements of the Tax Authorities?

A mileage log must contain the following information for each trip:

Date of the ride
Starting and ending odometer readings
Departure and destination address
The nature of the trip: business or private
Deviations from the usual route

The registration must be complete and verifiable. If a single piece of information is missing, the Tax and Customs Administration may reject your registration.

Read more about the mandatory details per trip and common mistakes.

Quality mark for journey registration systems recognised by the Tax Authorities.

A reliable journey registration system with a quality mark meets the requirements of the Tax Authorities.

Additional benefits of keeping a mileage log

In addition to meeting tax obligations, good registration also provides:

Insight into kilometers driven per customer or project
Efficiency in route planning
Better accountability to customers or clients
Save time on administration
Reliable evidence during a Tax and Customs Administration audit

Moreover, it helps prevent errors with expense claims or tax returns. The sooner you automate, the lower your risk of an additional assessment or fine. Read also: what are the penalties for incomplete mileage records?

Ready to automate your mileage tracking?
With TrackJack, you automatically maintain a complete mileage log that is fiscally compliant, always exportable, and approved by the Tax Authorities.

View our mileage tracking solutions
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