Wagering requirements are the single most important factor that determines the real value of a bonus. We break down the formula, show examples, and explain when a bonus is not worth activating.
A wagering requirement (also called playthrough or rollover) is the condition a casino places between receiving a bonus and being able to withdraw funds. In essence, it is a multiplier that shows how many times a certain amount must be turned over in bets. Until the wagering requirement is met, bonus funds and any winnings derived from them are locked for withdrawal. This does not mean you cannot play — you play, you place bets, and each bet gradually reduces the remaining wager. The problem is that with every bet the casino takes its share (house edge), and the more bets you must make, the more the player statistically loses.
The formula is straightforward: the base amount is multiplied by the wagering multiplier. If a casino gives a $100 bonus with x35 wagering, the total bet volume is $100 * 35 = $3,500. This does not mean you will lose $3,500 — it is the total amount that must be wagered. With an average slot RTP of 96%, you lose an average of $4 for every $100 wagered. Over $3,500 in bets the average loss is $140 — more than the bonus itself. This is precisely why the calculation matters: without it, a player does not realise that a $100 bonus with x35 wagering can, on average, cost money rather than earn it.
This is a critical distinction that many players overlook. When a casino states "x30 wager on the bonus", the turnover is calculated only on the bonus amount: a $100 bonus means $3,000 in bets. But if the terms read "x30 wager on the bonus and deposit", with a $100 deposit and a $100 bonus the total base becomes $200, and the turnover is $6,000. That is a twofold difference. Some casinos bury this detail in the fine print, and the player only discovers the real conditions after activating the bonus. Before accepting any offer, confirm what the playthrough is based on — it changes the calculation dramatically. You can read more about this and other bonus nuances in our guide to bonus terms.
Not all games count equally towards a wagering requirement. The standard breakdown looks like this: slots — 100% (every dollar wagered counts in full), roulette — 10-20%, blackjack — 5-10%, video poker — 5-10%, live dealer games — often 0%. This means that if you need to wager $3,000 on slots, achieving the same result on roulette would require $15,000 to $30,000 in bets. Additionally, certain games and providers may be completely excluded, with bets in those games not counting at all. Playing them while a bonus is active is pointless, and at some casinos it is also risky: violating the rules can lead to the bonus and all winnings being voided.
Let us do the maths. The average slot RTP is 96%, meaning the house edge is 4%. With x40 wagering on a $100 bonus you need to bet $4,000. Average loss: $4,000 * 4% = $160. The $100 bonus effectively costs you $60 out of pocket. At x50 wagering the average loss rises to $200, and the bonus begins working against the player. The situation worsens if the wager applies to the bonus and deposit combined: with a $100 deposit and a $100 bonus at x40, the turnover is $8,000, and the average loss is $320. You lose more than you received. Add a maximum bet cap ($5 per spin) and a time limit (7 days), and the conditions become virtually impossible to meet.
A simple formula: effective value = bonus amount - (total turnover * house edge). For a $100 bonus with x30 wagering on slots with 96% RTP: $100 - ($3,000 * 0.04) = $100 - $120 = -$20. A negative value means the bonus is, on average, a losing proposition. A positive value only appears with low wagering: a $100 bonus with x20 wagering gives $100 - ($2,000 * 0.04) = $100 - $80 = +$20. This is why a x25 wager or lower is considered a good deal, x30-x35 is acceptable, and anything above x40 is unfavourable for the player. These are averages, of course — individual sessions can produce big wins, but over time the maths works against the player with a high wagering requirement. If you would like to compare bonus offers, take a look at our ranking of casinos with the best bonuses, where we evaluate terms using this methodology.
The higher the wagering requirement, the lower the real value of the bonus. At x50 or above, the bonus is mathematically unprofitable in most cases.
If the wager is calculated on the bonus and deposit combined, the actual turnover doubles. This is critical to factor in.
It means the bonus amount (or the bonus plus deposit) must be wagered 35 times before funds become available for withdrawal. A $100 bonus with x35 wagering requires $3,500 in total bets.
In theory, yes, but statistically, with a wagering requirement above x45, the probability of coming out ahead is extremely low. The more bets you must place, the more the house edge works against you.
Without wagering requirements, every player could claim a bonus and withdraw it immediately. The wager is the mechanism that turns a bonus from a gift into a marketing tool with conditions attached.
This guide provides concrete formulas and examples so that a player evaluates a bonus as a financial instrument, not as a gift.