Expedia is a big believer in knocking down the barriers to travel, that's why you can reserve your rental car without paying in advance. With our Book Now Pay Later option, you can just hand over a valid credit card to pay in full at the pickup spot. It's that easy! The car rental company will also place a hold on your credit card for the security deposit. For some cheaper deals online, you may have to pay at the time of booking. Take note of which payment options are available for the rental car you're interested in.