A wagering requirement (also known as playthrough or rollover) is a multiplier that determines how many times you must bet your bonus funds before they become withdrawable cash. These requirements exist to prevent players from claiming a bonus and immediately withdrawing it without playing, allowing the operator to provide larger credits.
There are two main types of requirements: Bonus-Only, where only the awarded bonus amount is subject to the multiplier, and Deposit + Bonus, where both your deposited funds and the bonus are locked together. The latter creates a higher total amount to wager, which is a critical detail to check before accepting an offer.
As you place bets, a progress bar or counter in your account tracks how much you have wagered. Once the total amount bet equals the requirement, the remaining bonus funds are converted to cash. The specific multiplier for any given offer is always displayed clearly alongside the promotion in your account dashboard.