At any given moment, a player’s balance at these free bonus casino sites is divided into cash balance, which is the amount that he has deposited into his player account, and bonus balance. The bonus balance is the amount that the player does not deposit; it comes from the bonus which is offered by the site. For example, if there is a 100% match bonus on the first deposit, and the player deposits $50 into their account.
The casino will match the deposit and give an additional $50 to the players. As a result, the total amount in the player’s account would be $100. Out of this amount, $50 is the cash balance and $50 is the bonus balance. If the bonus consists of free spins, the bonus balance will also include all the free spins that are credited to the player’s account.