To the mortgage lender, a person who uses his money gambling on sports or gambling is unreliable, because this indicates that the person may squander the money on gambling and then have no way to repay the loan. Even if your bank statement shows that you regularly transfer your gambling winnings into your account, your association with a gambling service is all the proof they need to conclude that you are financially irresponsible. However, if you can control your gambling habits, getting a mortgage at some point will be possible, if you plan correctly. Therefore, plan several months in advance if you are thinking about getting a mortgage.