A sports betting deposit bonus is an incentive offered by online sportsbooks to attract new customers and reward existing ones. Typically, it matches a percentage of the initial deposit, allowing bettors to have extra funds to wager on their favorite sports. For example, a 100% deposit bonus up to $200 means that if you deposit $200, you’ll receive an additional $200 in bonus funds. These bonuses often come with specific terms and conditions, such as wagering requirements, so it's essential for bettors to read the fine print before claiming the offer.