You cannot pay with a credit card. Fill out the money order at the counter with a retail associate.Pay for the money order using cash, debit card, or a traveler's check. Locations like the USPS won't let you pay for a money order with a check or credit card. Fill in the recipient's name. Checks are not accepted to purchase money orders. Credit cards may NOT be used to purchase money orders. Main information page for students concerning FERPA, tuition, 1098-T, make a payment, payment plans, payment deadlines and refunds. Know how and who you'll pay: Be prepared with cash or a debit card, the name of the payee and the amount you want to send. You can typically pay for money orders using cash or a debit card.