Mileage log generator (Fahrtenbuch)
A mileage log (Fahrtenbuch) pays off when you use your company car mostly for business: instead of the flat 1% rule, you only pay tax on your actual private share. The Finanzamt accepts it only if the log is complete, kept promptly and tamper-proof. This free generator covers every field required under § 4 EStDV and exports to CSV for your tax advisor.
Result
€0/h
Minimum break-even rate
Vehicle
Trips
| Date | Time | Odometer Start | From | To | Odometer End | Kilometers Driven | Purpose | Business Partner / Client | |
|---|---|---|---|---|---|---|---|---|---|
| 0 | |||||||||
| 0 | |||||||||
| 0 |
MILEAGE LOG
§ 4 EStDV
Legal note
A compliant mileage log must be kept promptly and be tamper-proof. This generator produces a CSV template covering the content requirements of § 4 EStDV — electronic mileage logs require tamper-proof software. Not tax advice.
All benchmarks and calculations are based on data available in 2026 and are not legally binding.
What every business trip entry needs
Each business trip belongs in the log with: the date, the odometer reading at the start and end, the origin and destination, the reason for the trip and the business partner or client you visited. For purely private trips the odometer readings are enough; for the commute to your first place of work a short note suffices. Late additions must be recognisable as such, and estimated or rounded kilometres are not allowed.
Why the Finanzamt rejects mileage logs
The most common reason is gaps: missing trips, contradictory odometer readings, or entries visibly written up in one sitting. Vague purposes like "client meeting" without a name, rounded kilometres and estimates also get logs thrown out. The second classic is the format: an Excel file that can be edited without a trace is not tamper-proof. If the log is rejected, the 1% rule applies retroactively for the whole year.
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