An online bingo deposit bonus is a promotional offer provided by bingo sites to attract new players and reward existing ones. Typically, this bonus matches a percentage of the player's initial deposit, allowing them to play with extra funds. For example, a 100% deposit bonus means if you deposit $50, you receive an additional $50 to play with. These bonuses often come with specific wagering requirements, so players should read the terms carefully. Overall, deposit bonuses enhance the gaming experience, providing more opportunities to win while enjoying the excitement of online bingo.