Answer: Filling out a money order is similar to writing a check. The specifics depend on where you buy your money order, but these instructions will help you get almost any money order filled out.
As with any check you write, make sure it can’t be altered. Write in ALL CAPS and use pen when you fill out a money order. The amount of your money order will be printed on the document.
You may also need to provide information about yourself as you fill out a money order. If there’s space for "Purchaser" or "Address," your information goes in that space. This information may be optional. Your payee doesn’t care where you are as long as the funds are there.
You can add additional details about your transaction to the money order. Account numbers, reference numbers, and notes can help ensure that your payee knows where the money came from. Add this information to the section marked "Re:" or "Memo." If there’s no space for additional information, just write it somewhere on the front of the document.
Some money orders require a signature, and some don’t. As you fill out a money order, look for a section marked "Signature," "Purchaser," or "Drawer."
After you fill out the money order completely, it’s ready to go. Hold on to any receipts, carbon copies, and other documents you got when purchasing the money order. You may need these if there’s a problem with your payment.