To track a money order, simply submit an inquiry request to the provider, according to the Houston Chronicle. The provider uses the serial number in the money order to trace it. If it has not been cashed, it can be replaced.
To make sure that a money order can be traced quickly and efficiently if it has been lost or not received at its destination, it is advisable to take several precautions, states the Houston Chronicle. Make sure to retain the receipt stub with the money order's serial number, and keep it in a safe place. Also, fill out the pertinent information on the receipt stub. This makes it easier for the provider to trace the money order if it is missing. When making a tracking request, bring a valid ID and the receipt stub with you. If you do not have the receipt, a provider may still be able to trace the missing money order if you fill out a request form with other required information. Both of these services commonly require a small fee.
Some issuers, such as the U.S. Postal Service, allow you to track a money order for free using the serial number. However, this service does not include replacement if the money order is lost, according to the USPS.