<prompt> Human: Greetings PF! I have been lurking here for quite some time, and would like to say thanks for sharing your stories and tips particularly your advice on investing and introducing me to mint.com. Now I am seeking your council on paying off my auto loan.I recently decided to pull some money out of investments free transaction and pay off my auto loan which I had previously thought was at 1.9 but after setting up my mint account, learned was at 3.9. Yes, ouch, but luckily I havent had it for very long.There is still a large amount owed on my car12,000, and I can easily make this payment in full. However, I thought I would first pay it off using my credit card capital one venture card before paying off my credit card in full. However, the bank doesnt allow me to pay off my loan using a credit card.So PF, is there any trick I can use to capitalize on my rewards, or should I just stop overthinking this, and make the payment by check? Is this banking policy common?  <response>: Most loans dont allow payment by credit card because it costs them money and they have no incentive or requirement to.One option is to set up an Amex Serve prepaid account, load it with a credit card up to 1000month, and then use their billpay service to send payments. Of course, it wouldnt allow you to pay off the loan all at once, but you could at least pay 1k of it for a few bucks in rewards and then keep using Serve to pay other bills to continue reaping said rewards. 