Okay, perhaps you add deposits all year. The way it is normally, as long as it is under $10,000 each deposit, you don't have to prove anything or fill out anything. But when it goes over that, there is some kind of form the transfer in bank has to complete stating that it is not laundered funds. I'm not sure how that works. I only know the limits. But different circumstances might change things. Plus if it goes over that you have to justify where it came from. And yes, at the start they do want an idea what you will be depositing.