Do PSN wallet funds expire?

I recently applied a $50 PlayStation Network credit to my account, but I only used part of it. How long will this money stay in my account, and does it ever expire? Will I get a notice if they do? Either way, what happens?


Solution 1:

According to Sony themselves, your wallet funds do not expire.

A PSN gift card however, does, if not applied to your wallet within a year of purchase.