Claiming a massive casino bonus is incredibly exciting, but the free money always comes with a catch.

Also known as "playthrough" or "rollover," this rule dictates exactly how and when you can withdraw funds.

The Mathematics of Rollover

It is expressed as a number (e.g., 30x) indicating how many times you must wager the bonus amount.

You do not need to lose this amount; you simply need to make wagers totaling that specific sum.

• It represents the total betting action required
• Some bonuses have zero wagering, though rare
• Always calculate the total playthrough before accepting

How Different Games Contribute

Casinos assign different "weighting" percentages to various games based on their inherent house edge.

Slot machines almost always contribute 100%, meaning a $1 bet reduces your requirement by exactly $1.

Other Important Bonus Terms

If you fail to clear the bonus within the specified period, both the bonus and winnings expire.

Furthermore, there is almost always a maximum bet limit in place while a bonus is active.

A bonus with a massive monetary value is useless if the wagering requirements are mathematically impossible to meet.