As we cover in our walkthrough of making a deposit, each sportsbook will have a minimum amount of money you are required to deposit for each transaction. This is based on which payment method you choose. However, there is no minimum for how much money you need to have in your account at one time. Your account won’t be shut down if you have a balance of zero dollars. If you choose to withdraw all your money after football season, and keep your account empty until next NFL season, you can do that.