Wagering requirements (x30, x40): the real cost of a bonus

A bonus is a credit conditioned on a volume of bets, called rollover or wagering. Typical offer: 100% up to $500, rollover x30. You deposit $500 and receive $500 in bonus. To turn that bonus into withdrawable money, you must place 30 × $500 = $15,000 in cumulative bets. The stricter variant applies the rollover to deposit plus bonus: x30 on ($500 + $500) = $30,000 to wager. The difference between the two wordings doubles the work. It is the first line to read in the terms. Almost always added to that: • A minimum odds requirement per qualifying bet, often 1.50 or higher • A validity window, usually 7 to 30 days to complete everything • A maximum stake per bet while wagering, often $5 to $10 in casino • In casino, game weighting: slots count 100%, roulette and blackjack 10 to 20%, sometimes zero

The expected value of a bonus works out as: Real value ≈ bonus amount − (rollover volume × the site's margin) Sports betting example: a $500 bonus, rollover x30 on the bonus alone ($15,000 of bets), against a typical bookmaker margin around 5%. Value ≈ $500 − ($15,000 × 5%) = $500 − $750 = −$250 That bonus has negative expectation: completing it costs you more, statistically, than the bonus pays. By contrast a $100 bonus with x5 rollover on the bonus alone ($500 of bets, $25 of margin) is worth roughly +$75. The quick rules: • Rollover of x10 or less on the bonus alone: generally worth taking • x20 to x35: playable if you were going to bet that volume anyway • x40 and above, or rollover on deposit plus bonus: treat it as entertainment, not as value

Beyond the multiplier, four clauses deserve a systematic read. 1. Sticky versus withdrawable. On a sticky bonus, the bonus amount itself never becomes withdrawable — only the winnings it generates. A headline like 300% up to $1,500 is often sticky. That is not a flaw, but it changes the arithmetic entirely. 2. Maximum stake during rollover. Going over the cap, even once, even unknowingly, can void the bonus and the winnings with it. If the limit is $5, a single $10 spin can invalidate everything. 3. Withdrawals that void the bonus. Requesting a withdrawal before the rollover is complete generally cancels the bonus and any winnings tied to it. Decide before you start: bonus, or liquidity. 4. Low-risk strategies are prohibited. Covering both outcomes of a match, betting red and black simultaneously — the terms forbid these explicitly and the detection is good.

Take it if: • You were going to play a volume close to the rollover anyway • The rollover is x10 or less on the bonus alone • You play games weighted at 100% and the maximum stake does not constrain you Decline it if: • You want to be able to withdraw quickly — liquidity and an open rollover are incompatible • The rollover applies to deposit plus bonus at x30 or more • You mainly play table games, where 10 to 20% weighting makes the real rollover five to ten times longer On most sites you can decline a bonus at the moment of deposit or through support, and for a regular bettor that is often the rational choice. Each operator's actual conditions are set out on our individual review pages.