The wagering requirement (also known as playthrough or rollover) is the most critical part of any bonus. Mechanically, it is a multiplier that determines how many times you must bet your bonus funds before they turn into withdrawable cash. For example, if a bonus has a wagering requirement, you cannot simply withdraw the credit; you must place bets totaling the multiplier times the bonus amount.
Why does this exist? Wagering requirements prevent players from claiming a bonus and immediately withdrawing it, which allows operators to offer larger credits while ensuring the funds are used for entertainment.
It is important to distinguish between Bonus-Only wagering (where only the bonus amount is multiplied) and Deposit + Bonus wagering (where both your deposit and the bonus are included in the calculation). The latter requires significantly more betting to clear. You can track your progress in your account dashboard, and the specific multiplier for any given offer is always clearly displayed alongside the promotion details.