Driving logbook for taxation – the most common mistakes and how to avoid them

Route-Tracker | Published 31.3.2026

The driving logbook is an important document for taxation, but problems often arise from incomplete or late entry of information. However, the most common errors can be avoided with a clear approach and up-to-date monitoring.

Incomplete information is a common problem

For tax purposes, the value of a driving logbook is based on how credible, consistent and accurate the entries are. If trips are missing, mileage is estimated or driving purposes are not clearly recorded, the reliability of the entire data may be impaired.

A particularly problematic issue is that people try to fill in the information later from memory. This makes it easy to forget details and can leave driving routes or mileage inaccurate.

Risks increase as the number of trips increases

The more work trips you make, the more important the accuracy of your driving logbook becomes. If you make several trips a day or use multiple vehicles, the chance of errors increases rapidly. At the same time, the tax implications also increase.

Inconsistent entries can lead to deductions not being accepted as expected. Therefore, keeping a driving logbook is not just an administrative obligation, but something that directly affects the financial bottom line.

Errors can be prevented with good practice

One of the most effective ways to reduce errors is to record your driving records immediately rather than later. When data is recorded during or shortly after a drive, it is more accurate and creates a coherent and credible record.

From a tax perspective, the most important thing is that the driving logbook is up-to-date, logical and as verifiable as possible. This is precisely why many are switching to electronic solutions instead of manual recording.