Most car rental companies in San Francisco require a credit card for renting a car. This is to ensure payment for any damages or additional charges that may occur during the rental period. It's recommended to check with the rental company beforehand to understand their specific payment policies.

To rent a car in San Francisco, you will typically need the following documents:

• A valid driver's license, preferably an international driver's license if your license is not in English.
• A valid passport or identification card.
• A credit card in the renter's name for the security deposit and payment.
• Proof of insurance coverage, either through your personal insurance policy or through the rental company's insurance options.

There may be additional fees when renting a car in San Francisco. Some common fees include:

• Airport surcharge fee: If you pick up or drop off the car at the airport, there may be an additional fee.
• Additional driver fee: If you plan on having multiple drivers for the rental car, there may be an additional fee for each additional driver.
• Fuel fee: If you return the car with less fuel than when you received it, you may be charged a fee for refueling.
• Toll fees: If you use toll roads during your rental period, you may be responsible for paying the toll fees. Rental companies may charge an administrative fee for this service.
• Young driver fee: If you are under the age of 25, there may be a young driver fee.

Yes, most car rental companies in San Francisco offer the option to return the rental car to a different location. However, there may be additional fees associated with this option. It's best to check with the rental company beforehand to understand their policies and any additional charges.

Basic insurance, also known as collision damage waiver (CDW) or loss damage waiver (LDW), typically covers damages to the rental car in case of an accident or theft. It usually comes with a deductible or excess amount that you are responsible for paying.

Additional insurance, such as supplemental liability insurance (SLI) or personal accident insurance, provides additional coverage for third-party liability or personal injuries. It's optional and may be recommended depending on your personal insurance coverage and needs.

If you return the rental car late in San Francisco, you may be charged a late fee by the rental company. This fee can vary depending on the length of the delay and the rental company's policies. It's important to communicate with the rental company if you anticipate being late to avoid any additional charges or penalties.