You might sign the back of a money order only if you’re making one out to yourself. In that case, check with your bank before depositing it via mobile deposit — not all banks allow it.

Discover what a money order is, how to fill it out, and where to buy one. We'll also dive into when to use a money order or when to explore alternative options.

Once you've signed, you'll need to pay for the money order. Most places allow you to buy a money order with a debit card or cash, but other payment methods are less commonly allowed. 4.

Discover what a money order is in 2025 and where to buy one. ... To fill out a money order, write the payee information and sign it, just like a check from your own personal checkbook.

If you go through the U.S. Postal Service, you'll pay $2.35 for a money order up to $500, or $3.40 for a money order of $500.01 to $1,000. Postal military money orders cost just 79 cents.

To determine whether a USPS money order you have received is real, call the money order verification system at 866-459-7822. To report money order fraud, contact the U.S. Postal Inspection Service ...

You can't stop payment on postal money orders, though you can replace a lost or stolen money order. USPS may require up to 30 days to confirm loss or theft and up to 60 days to investigate the status.