Expedia loves making travel easy and accessible, that's why you can reserve your wheels without paying upfront. With our Book Now Pay Later option, you can just present a valid credit card to pay in full at the pickup destination. How's that for easy? The car rental company will also put 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. Remember to take note of which payment options are available for the rental car you're interested in.