A deposit sign-up bonus is an enticing incentive offered by financial institutions, online casinos, or trading platforms to attract new customers. Typically, it involves matching a percentage of the initial deposit, providing extra funds or credits to enhance the user’s experience. For example, a platform might offer a 100% bonus on the first deposit up to a certain amount, allowing users to start with more capital. However, these bonuses often come with specific terms and conditions, such as wagering requirements, so it's essential for users to read the fine print before claiming the offer.