Yes, international money orders do expire. The validity period of an international money order varies depending on the issuer.  

Typically, the expiration date is printed on the money order itself, and it is usually one to three years from the date of issue. 

However, some issuers may have a shorter or longer validity period.

It is important to note that if an international money order is not cashed before the expiration date, it will be considered void and will have no value. 

It is important to note that if an international money order is not cashed before the expiration date, it will be considered void and will have no value. 

This means that if you have an expired international money order, you will not be able to cash it or receive a refund. 

It is important to act quickly and cash the money order before it expires.

One of the main reasons why international money orders have an expiration date is to ensure that the payment can be processed quickly and efficiently.