Deposit bonus bets are promotional offers provided by online sportsbooks to attract new customers or retain existing ones. When a user makes a qualifying deposit, the sportsbook matches a percentage of that amount, granting them bonus funds to use for betting. These bonuses often come with specific terms, such as minimum odds or wagering requirements, which must be met before withdrawing any winnings. Deposit bonus bets enhance the betting experience by allowing users to explore more betting options without risking their own money upfront.