A matched deposit bonus is a popular promotional offer used by online casinos and sportsbooks to attract new players. When a user makes a deposit, the operator matches a percentage of that amount, effectively doubling the player's initial funds up to a specified limit. For example, a 100% matched deposit bonus on a $100 deposit would give the player an additional $100 in bonus funds. This incentive allows players to explore more games or betting options, but it often comes with wagering requirements that must be met before withdrawing any winnings.