Most car rental companies in Scuol require a credit card for renting a car. This is typically used for a security deposit and any additional charges incurred during the rental period. However, there may be some rental companies that accept alternative forms of payment. It's recommended to contact the rental company directly to inquire about their payment policies.

When renting a car in Scuol, you will typically need the following documents:

• A valid driver's license from your home country or an international driver's license.
• Proof of insurance coverage, either through your own policy or by purchasing rental car insurance.
• A valid passport or identification card.
• A credit card in the main driver's name for the security deposit and payment.
• Additional identification may be required by the rental company, so it's best to check their specific requirements.

The cancellation policy for car rentals in Scuol may vary depending on the rental company. It's important to review the terms and conditions of your specific rental agreement for details on their cancellation policy. Some rental companies may offer free cancellations up to a certain time before the rental period begins, while others may charge a cancellation fee. It's recommended to contact the rental company directly if you need to cancel your reservation.

Sometimes car rental companies in Scuol have a minimum age requirement of 25 years old. However, there are some rental companies that may allow drivers under 25 to rent a car, but they may charge an additional young driver surcharge. It's best to check with the rental company directly for their age restrictions and any additional fees for drivers under 25.