Follow these five simple steps for filling out a money order: Fill in the recipient's name. Write your address in the purchaser section.Fill in the recipient's name. Fill in the name of the recipient in the "pay to" section. Check that the money order amount is correct. Acceptable forms of payment include cash, money orders, checks, and credit cards. Cash - do not mail cash. 1. Enter the recipient's name and address. List the name and address of the person or business you're sending money to. If you are filing a joint return, enter your SSNs in the same order as your names.