A Wave Share Account is the foundation of your membership. We call it a share because it represents ownership in Wave Federal Credit Union. You can join the credit union with a $5 minimum deposit. Your share account earns interest and you can choose from a basic share account or, for higher interest plus additional benefits, open an Electronic Share Account. As an added advantage, borrow up to 90% of your Share balance at a rate 3% over the interest you are earning on your Share Account.