Write your address in the purchaser section. Include your account number if you're paying a bill.1 Check that the money order amount is correct. Fill in the recipient's name. I'm gonna give you some brief information on how to fill out a money order. When filling out your money order, you'll need to have some basic information, such as the name and address of the person receiving the money order. Filling out a money order is a straightforward stepbystep process. Just follow these instructions and you'll be ready to send your money. When filling out a money order, you'll need some basic information, such as the recipient's name and your address.