Car rentals by their nature process particularly large amounts of personal data: ID and driving licence data, addresses, payment information, sometimes even location data from GPS systems. Thus every rental falls under the General Data Protection Regulation (GDPR) and the Federal Data Protection Act (BDSG). Those who work cleanly here avoid not only fines but also build trust with customers.

Which data arises in car rental?

Typically, with every rental you collect a range of sensitive information. This includes:

  • Identity data from ID and driving licence (name, date of birth, ID number)
  • Contact and address data
  • Payment and creditworthiness data
  • Contract, damage and handover documentation (incl. photos)
  • If applicable, location and telemetry data from GPS-tracked vehicles

The legal basis: what may you process data for?

Every processing needs a legal basis under Art. 6 GDPR. For the rental contract itself this is usually Art. 6(1)(b) GDPR (contract performance) – without ID and contact data no contract comes about. For fraud prevention and damage documentation one often relies on legitimate interest (Art. 6(1)(f) GDPR). GPS tracking and marketing, by contrast, often need explicit consent (Art. 6(1)(a) GDPR).

Data minimisation and storage period

The principle of data minimisation (Art. 5(1)(c) GDPR) requires collecting only the data that is really necessary. Equally important is storage limitation: data may not be kept indefinitely. But observe commercial and tax retention periods (up to 10 years under HGB/AO for invoices and contracts). In practice this means: clear deletion concepts instead of paper shuffling in the filing cabinet.

Copy of ID and driving licence – allowed?

Simply checking ID and driving licence is permissible and sensible for initiating a contract. Permanently storing a complete copy is more delicate under data protection law and should be limited to the necessary extent and justified. A documented authenticity check with targeted capture of the relevant fields is generally more data-economical than an unfiltered full copy.

Technical and organisational measures (TOM)

Art. 32 GDPR requires appropriate security measures. These include:

  • Access restrictions: only authorised employees see customer data
  • Encrypted transmission and storage
  • Data processing agreements (Art. 28 GDPR) with all service providers (hosting, CRM, mailing)
  • Traceability: who changed which data and when?

Why a digital solution eases data protection

Paper receipts in a folder are a data protection risk: they are hard to protect, hard to delete and easy to lose. Specialised rental software with role-based access, encryption, automatic deletion deadlines and hosting in Germany implements many GDPR requirements structurally – instead of imposing them manually on every employee.

Conclusion

Data protection in car rental is not a paper tiger but everyday reality. Those who cleanly separate legal bases, minimise data, meet deadlines and rely on secure systems protect themselves from fines and strengthen customer trust at the same time. The easiest way there is an end-to-end digital, GDPR-compliant process instead of loose notes and Excel lists.