Sign the back of the money order in the "Payee Signature" line, and only after the person or business you're paying has received it

A money order has two signature lines: one for you (the purchaser) and one for the person receiving the money (the payee). You sign the front when you buy it at the post office, bank, or convenience store. The payee signs the back after they receive it, just before they cash or deposit it. If you sign the back before handing it over, you've made the money order negotiable — meaning anyone who holds it can cash it, not just the person you intended to pay.

The order of signing matters because it protects both you and the payee. Your signature on the front proves you purchased it. The payee's signature on the back proves they received the money and accepted it. If you sign both lines yourself, you've defeated the whole point of using a money order instead of cash.

Key Takeaways

  • Sign the front of the money order (the purchaser line) when you buy it, before you leave the counter.
  • Never sign the back payee line yourself — that signature belongs to the person or business you're paying.
  • Write the payee's name on the "Pay to the Order of" line in black or blue ink before you hand it over.
  • If you make a mistake on either signature line, ask the seller for a replacement — do not cross out or white out a signature.
  • Keep your receipt until the payee confirms they've cashed or deposited the money order.

What to write on the "Pay to the Order of" line

Before you sign anything, fill in the name of the person or business receiving the money on the line that says "Pay to the Order of." Use the exact legal name — for a person, their full name as it appears on their ID; for a business, the registered business name. Write in black or blue ink, not pencil. If the payee is a company like "ABC Plumbing LLC," write it exactly that way.

If you make a mistake on this line, do not cross it out or use white-out. Ask the seller for a replacement money order. A corrected name line raises red flags for banks and can cause the payee to reject it or delay cashing it.

Signing the front as the purchaser

The front of the money order has a line labeled "Purchaser Signature" or sometimes "From" — this is where you sign. Sign it with your normal signature, the same one you use on checks and legal documents. Use black or blue ink. This signature proves you bought the money order and authorizes the payment.

You must sign this line before you leave the counter where you bought it. Most sellers will not hand you an unsigned money order. If they do, sign it immediately in front of them so there is a record that you did. Never leave a money order unsigned.

Why the payee must sign the back

The back of the money order has a line labeled "Payee Signature" or "Endorsement." This is where the person or business you're paying signs. They sign it only when they are ready to cash or deposit it — usually at their bank or the post office. This signature proves they received the money order and accepted the payment.

If you sign this line before giving them the money order, anyone who finds it or steals it can cash it in your name. The money order becomes as good as cash. If the payee signs it and then loses it before depositing it, they can report it missing and request a replacement, but if you signed it for them, that protection is gone.

What to do if you sign the back by mistake

If you realize you've signed the payee line before handing over the money order, contact the seller immediately. Most post offices and banks will replace a money order that has been signed incorrectly, especially if you still have the receipt and can show you purchased it. Bring your ID and the receipt.

Do not try to use a money order you've already signed on the back. A bank or post office teller will likely refuse it because the signature does not match the name on the "Pay to the Order of" line. The payee will also refuse it because it is already endorsed in someone else's name.

Keeping your receipt and tracking the money order

When you buy a money order, you receive a receipt with a tracking number. Keep this receipt until the payee confirms they have cashed or deposited the money order. The tracking number lets you verify that the money order was received and processed if there is ever a dispute.

If the payee says they never received it, you can use the receipt to file a claim with the issuer (the post office, bank, or MoneyGram, depending on where you bought it). If you lose the receipt, you can still file a claim, but you will need the money order number, the amount, the date of purchase, and the payee's name. Having the receipt makes the process much faster.

Common mistakes to avoid

Do not use a pen that is hard to read — use black or blue ink that is clear and permanent. Do not sign in pencil; it can be erased. Do not sign with initials or a nickname unless that is your legal signature. Do not cross out or white-out any line on the money order; ask for a replacement instead.

Do not give an unsigned money order to anyone. Do not sign the payee line yourself. Do not leave blank the "Pay to the Order of" line and expect the payee to fill it in — they should not have to, and some banks will reject it. Fill in every required field before you hand it over.

Frequently Asked Questions

What if I sign the back by accident and the payee has already received it?

Contact the payee and ask them to sign below your signature or to return the money order so you can get a replacement. If they have already cashed it, the transaction is complete and there is nothing to do. If they have not cashed it yet, they can take it to their bank and explain that there are two signatures on the back.

Can I sign a money order with a different name than the one on my ID?

No. The purchaser signature must match the name on your ID. If you are buying a money order as a gift or on behalf of someone else, you still sign with your own name. The "Pay to the Order of" line is where you put the recipient's name.

What if the payee loses the money order after I've signed it?

If you signed only the front (purchaser line), the payee can report it lost and request a replacement from the issuer using the money order number. If you signed both the front and the back, the payee can still report it lost, but the process may take longer because the money order is already endorsed.

Do I need to sign a money order if I'm mailing it?

Yes. Sign the front before you mail it. Do not sign the back. The payee will sign the back when they receive it and are ready to cash or deposit it. Signing the front protects you by proving you purchased it; signing the back before mailing it defeats that protection.

Can someone else sign the money order on my behalf?

No. You must sign the purchaser line yourself. If someone else signs it, the money order may be rejected or flagged as fraudulent. The only exception is if you have a power of attorney, in which case that person can sign your name with "POA" written after it, but this is rare for money orders.