Wagering requirements, are often known as playthrough requirements. These are the conditions that online casinos and other gambling sites put on bonuses and promotions. These requirements show how many times you must wager the bonus or promotion amount before you can withdraw any winnings earned with it. In most cases, wagering requirements will be expressed as a multiple of the bonus or promotion amount, or as a multiple of the bonus plus deposit amount. For example, a wagering requirement of 30x means you must wager the bonus or promotion amount 30 times before withdrawing any winnings.