there is no limit from the bank. anything over $3000 will be kept on file by the bank, anything over $10000 and the infomation that a deposit came into your account and the amount is passed on to the goverment. if you pay taxes on the money as gambling winnings it will be treated as income,like any other income. if you do not pay taxes and the goverment finds out you have a problrm. the key is , if they find out, because there are so many deposits to so many accounts over $10000 it's just very difficult to keep track. what you do is up to you. some would pay taxes some would not.either way try not to worry about it. worrying ruins everything good about gambling. if you think your going to worry about it. pay the taxes. if you think you will not give it a second thought worrying. don't pay the taxes. it is just like another bet. risk/reward. it's up to you.