A wagering requirement is the amount of qualifying betting that must be completed before bonus funds or bonus-related winnings become withdrawable. It is also called playthrough or rollover.
The multiplier alone does not tell you the cost. “10x wagering” can mean 10 times the bonus, 10 times the deposit plus bonus, or 10 times the winnings produced by an offer. Those are very different obligations.
Start with the number the multiplier applies to
The basic formula is:
Required qualifying turnover = applicable bonus base × wagering multiplier
The bonus base is the amount named in the terms. Suppose a player deposits $50 and receives a $50 bonus.
| Offer wording | Calculation | Required qualifying turnover |
|---|---|---|
| 10x bonus | $50 × 10 | $500 |
| 10x deposit plus bonus | ($50 + $50) × 10 | $1,000 |
| 10x free-spin winnings, after winning $18 | $18 × 10 | $180 |
An advertisement that shows only “10x” leaves out the most useful part of the calculation. The full terms should identify the base clearly.
Qualifying turnover is not always the same as actual betting
Casino offers often assign different contribution rates to different games. Slots may count at 100%, while blackjack, video poker, roulette, or live-dealer games may count partially or not at all. The exact percentages are offer-specific.
When a game contributes less than 100%, use:
Actual betting needed = remaining qualifying turnover ÷ game contribution rate
If $500 of qualifying turnover remains and blackjack contributes 10%:
$500 ÷ 0.10 = $5,000 of actual blackjack wagers
That does not mean blackjack is necessarily permitted or sensible for the offer. It shows why a low contribution percentage can make a seemingly modest requirement much larger in practice.
Estimate the mathematical cost, not just the workload
The required turnover creates expected loss on the games used to clear it.
Expected playthrough loss = actual amount wagered × house edge
Suppose an offer requires $500 of slot turnover and the selected game has a 96% RTP. The corresponding house edge is 4%.
$500 × 0.04 = $20 expected loss
If the usable bonus is $50, a rough pre-restriction value is:
Rough bonus value = usable bonus − expected playthrough loss
$50 − $20 = $30
This is an average, not a guaranteed result. Slot volatility can produce a zero balance before the requirement is completed or a much larger balance that later faces withdrawal limits. The calculation also ignores deposit risk, maximum-bet rules, excluded games, expiry, and any cap on bonus winnings.
Six terms can change the answer
A wagering multiplier should never be evaluated alone.
1. Bonus base
Confirm whether the multiplier applies to the bonus, deposit plus bonus, free-spin winnings, or another amount.
2. Game contribution
A game that contributes 20% requires five times as much actual betting as a game that contributes 100%.
3. Maximum permitted bet
Many offers limit the stake that can be placed while bonus funds are active. Exceeding the cap may breach the terms even if the platform accepts the wager.
4. Expiry
A requirement that expires quickly can pressure the player to increase speed or session length. The deadline does not improve the offer’s expected value.
5. Maximum cash-out
Some promotions cap the amount that can become withdrawable. A large result above the cap may not be fully payable under the bonus terms.
6. Order of balances
The rules may specify whether cash funds or bonus funds are used first. That affects what can be withdrawn and which wagers count.
Regulation is jurisdiction-specific
Rules for bonus offers are not universal. In Great Britain, the UK Gambling Commission’s revised Social Responsibility Code took effect on 19 January 2026. It prevents covered licensees from applying wagering requirements above 10 times to bonus funds in promotional offers. The Commission’s final wagering-requirement wording defines the requirement as wagers totalling a specified value before funds become withdrawable.
That 10x cap applies within the Commission’s licensing framework. It should not be assumed to govern offers in other countries, tribal jurisdictions, sweepstakes models, or unregulated websites.
Compare two offers by usable value
Consider two deposit bonuses on the same 96% RTP slot.
Offer A
- $50 bonus
- 10x bonus wagering
- $500 required turnover
- Expected playthrough loss: $20
- No cash-out cap
Rough value before variance and other restrictions: $30.
Offer B
- $75 bonus
- 10x deposit plus bonus on a $75 deposit
- $1,500 required turnover
- Expected playthrough loss: $60
- Maximum bonus cash-out: $100
Rough value before the cap and variance: $15.
The larger headline bonus is not automatically the better offer. It creates three times the required turnover in this example.
Wagering requirement versus locked deposit
A bonus condition should be distinguished from a rule that prevents withdrawal of the player’s own deposited money. In regulated markets, consumer rules may require operators to separate cash and bonus balances and to explain restrictions clearly. The exact legal protection depends on the jurisdiction and licence.
Before accepting an offer, check whether declining or cancelling the bonus releases the cash balance, forfeits bonus winnings, or affects open bets. Do not assume the platform’s button labels explain the full consequence.
A quick reading method
When reviewing a promotion, write down five figures:
- usable bonus amount;
- multiplier and its base;
- qualifying turnover;
- game contribution rate;
- estimated house edge of the permitted game.
Then calculate actual betting and expected playthrough loss. Finally, read the non-mathematical restrictions: maximum bet, expiry, eligible games, withdrawal cap, country limits, identity requirements, and reasons the bonus may be voided.
A wagering requirement is not automatically unfair, and a low multiplier is not automatically valuable. It is a conversion rule between promotional credit and withdrawable money. The real question is how much action, cost, and restriction stand between the two.