The majority of casino bonuses come with wagering requirements attached. Casinos that offer bonuses without wagering requirements will state as such right in the promotional material – just because a promotion makes no mention of wagering requirements, that does not mean that there aren’t any. Only that you may need to look harder to find them.
No-deposit bonuses tend to come with higher wagering requirements than other bonus types. This is because casinos would like players to stick around after claiming a no-deposit bonus instead of spending it and never looking back.
Wagering requirements are determined by each casino, which means there isn’t really an ‘industry standard’ value. Requirements can range from as low as x15 to as high as x50 or even higher. It’s always a good idea to find out the wagering requirements of a bonus or promotion before you accept it.