Write your address in the purchaser section. Include your account number if you're paying a bill.Fill in the name of the payee. Fill in the recipient's name. Fill out your money order using a black or blue pen and print clearly. Because money orders are prepaid, you'll need to pay for yours upfront. Fill out the money order at the counter with a retail associate. Pay the dollar value of the money order plus the issuing fee. When filling out a money order, you'll need some basic information, such as the recipient's name and your address. Find out if you can pay with a MoneyGram and then buy one.