Bonus on deposit is a popular incentive offered by online casinos and betting sites to attract new players and retain existing ones. When users make a deposit, they receive a percentage of that amount as a bonus, which can be used to play games or place bets. This bonus enhances the gaming experience by providing extra funds, allowing players to explore more options without risking their own money. However, it's essential to read the terms and conditions, as wagering requirements may apply before any winnings can be withdrawn.