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.

If you receive a $100 bonus with a 20x wagering requirement, you must place $2000 in total bets.

• It prevents instant withdrawals of free casino funds
• The multiplier usually ranges from 20x to 50x
• It can apply to the bonus alone or the deposit plus bonus

The Concept of Game Weighting

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

If a game contributes 10%, a $10 wager only removes $1 from your remaining playthrough total.

Time Limits and Maximum Bets

Casinos impose strict deadlines to encourage faster gameplay and higher risk-taking from the player.

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

Smart players look for smaller bonuses with low, achievable playthrough multipliers.