To fill out a money order you need to first fill out the who the payee is, the purchasers information and sign it. Underneath the "Pay to the Order Of" line, you'll find the "Purchaser, Signer for Drawer" line.Write your signature on that line. Fill in the recipient and your address; for bills, include an account number; sign it; keep proof of payment. It's similar to signing a check. You'll see a line for the purchaser's signature, usually on the front of the money order near the bottom. Complete the fields below to proceed with your refund request. If you don't have the original copy of the money order or receipt, please fill this form instead. To fill out the money order, you will need to "Pay to" U.S. Department of Homeland Security. Checks or money orders should be made payable to "Arizona Secretary of State.