Customer story
Stern & Hafferl Bau: Digital Logbook in Construction
Non-cash benefits. Real compliance obligations.
For any company with a mixed vehicle fleet, permanently assigned cars alongside shared pool vehicles, the question of accurate, legally compliant logbooks is not optional. Tax authorities require it. Employees resist manual records. And paper-based systems create exactly the kind of uncertainty that audits expose.
Stern & Hafferl Bau, the civil engineering division of the Stern & Hafferl group based in Gmunden, faced this challenge head-on. The answer was Commander’s Digital Logbook module.

Accuracy is non-negotiable
“Accuracy is our top priority. We do everything we can to work in compliance with the law and to create maximum transparency. With this system, we are succeeding quite well.” Those are the words of Christian Puck, Commercial Director, Stern & Hafferl Bau. They describe exactly why a digital logbook is not a luxury. It is a legal safeguard.
Commander records every trip automatically: start time, end time, distance, route, and driver. Private and business trips are distinguished clearly. The result is an audit-proof record that satisfies the Austrian tax authorities and eliminates disputes over non-cash benefit valuations.
Implementation that works, and that employees accept
Rolling out new software across a construction company’s vehicle fleet is not trivial. Drivers have to adapt. Managers have to trust the data. The system has to work without manual intervention on every trip.
At Stern & Hafferl Bau, the rollout succeeded on both counts. Managing Director Bmst. Ing. Markus Hilgarth confirmed: “The new telematics system from Rosenberger works very well, was successfully implemented in collaboration with Rosenberger, and has been very well received by our employees. We can highly recommend working with Rosenberger.”
That last point matters. A digital logbook only delivers its value when drivers use it correctly and consistently. Acceptance is not a given. It has to be earned through a system that is genuinely easy to use.
What the Digital Logbook delivers
- Automatic trip recording: no manual input required from drivers
- Clear separation of private and business journeys
- Legally compliant documentation for Austrian tax requirements
- Full fleet overview across permanently assigned and pool vehicles
- Transparent records that management, HR, and finance can rely on
Clarity where it matters most
The non-cash benefit question affects every company that provides vehicles to employees. Commander answers it automatically, without burdening drivers with paperwork and without leaving compliance to chance. Master your data. Decide with confidence.
Need audit-proof logbooks for your construction fleet?
Book a 30-minute demo and see how Commander's Digital Logbook module handles automatic trip recording, private/business separation, and compliance reporting, live, with your own questions.