Online Betting needs bookmaker, where a bookmaker (also known as turf accountant or Online Betting bookie) is a person or an organization that takes bets on different events at agree upon odds. Bookmakers will works according to the guarantee profit by attaining a balanced book, either by getting the wagered amounts on every outcome returning the odds or for Online Betting each outcome, by getting same number of bets. During large bets, a bookmaker can also buy bets from another bookmaker to lay off the risks.

Making money of bookmakers do not consists of bets themselves only, Online Betting buy also they acting as a market makers and trying to make profit from the event apart from the outcome of the event.