Hotels are allowed to store credit card details, but they must strictly adhere to the Payment Card Industry Data Security Standard (PCI DSS) to do so legally and safely. When you make a reservation, the hotel typically "captures" your card information to guarantee the booking or to process a pre-authorization for incidentals. In 2026, most reputable hotels use "tokenization," where your actual card number is replaced by a unique digital identifier (a token) in their local database. This way, if the hotel's system is hacked, the criminals only find useless tokens rather than your actual financial data. Under data protection laws like the GDPR in Europe or the CCPA in California, hotels must also have a clear privacy policy stating why they are storing your data and for how long. You have the right to ask a hotel to delete your stored payment information once your stay is completed and all charges have been settled. However, many hotels keep a "guest profile" on file to make future bookings easier, which often includes your preferred payment method. It is always recommended to use a credit card rather than a debit card for hotel stays, as credit cards offer much stronger legal protections against unauthorized or fraudulent charges.