Yes, money orders do expire. The expiration date is typically printed on the front of the money order and can vary depending on the issuer. 

For example, some money orders may expire in one year, while others may be valid for several years. 

If you are not sure when a money order expires, you can check the issuer’s website or contact their customer service.

When a money order expires, it means that the issuer will no longer honor or cash the money order.  

This can be a problem if you have a money order that you need to use after it has expired. 

If you try to cash an expired money order, it will likely be rejected, and you may not be able to get your money back.

However, not all hope is lost if you have an expired money order. In some cases, you may be able to get a refund or have the money order reissued. 

The process for doing so will vary depending on the issuer, so it is important to follow their instructions carefully.