Wagering requirements explained: cost to the operator vs value to the player

Updated 2026-10-20

Rates last checked 2026-10-20

A wagering requirement is the number of times a player must stake a bonus (sometimes bonus plus deposit) before winnings from it can be withdrawn. Players see it as the catch. Operators see it as the mechanism that turns a bonus from a cash giveaway into something the house edge partly pays for. Both views are right, and the maths that connects them is simple enough to do on the back of an envelope, or in the bonus cost calculator.

The core idea: the house edge works on bonus money too

Every pound staked on a slot with 96% RTP returns 96p to the player on average and keeps 4p for the house. If a player must stake a £50 bonus ten times, they will on average lose 4% of £500, which is £20. What is left, £30, is what the bonus is worth to a player who finishes, and what it costs the operator to pay out.

Before tax, bonuses are close to zero-sum: what the average player gains is what the operator spends. The gap between “value” and “cost” opens up in three places: perception (players judge the headline, not the expected value), completion (most players never finish, so the operator's cost per claimer is far lower than the value to a finisher), and tax (which can make the operator's cost higher or lower than the player's gain).

How cost changes as wagering rises

Take a £50 bonus on a £50 deposit, 96% RTP slots, 70% of first-time depositors claiming and £150 GGR per FTD. The completion rates below are illustrative, not measured: more wagering means fewer players finish.

Three things happen as wagering goes up:

• Value per finisher falls in a straight line: £50, £48, £40, £30, £10, then nothing.
• Fewer players finish, which compounds the fall in cost per claimer.
• Above a certain multiple, the expected value is zero: the house edge on the turnover exceeds the bonus.

The zero-value multiple

The point where the expected edge equals the bonus is easy to find:

At 96% RTP and 100% weighting that is 25x the bonus. At 97.5% it is 40x; at 94% it is about 17x. This is why 35x and 40x offers, common in the UK until the January 2026 cap, were worth little in expectation to the average player and cheap for operators, even though some lucky players did cash out.

RTP and game weighting

The house edge does the work, so the games a player chooses matter as much as the multiple. Low-edge games like blackjack recover very little during wagering, which is why operators reduce their contribution (weighting) or exclude them. A 10% weighting means a player needs £10 of real stakes for every £1 that counts.

At 99% RTP and full weighting, a 10x requirement recovers only £5 of a £50 bonus and the finisher keeps £45. Weighting that game at 10% restores the edge: £5,000 of real stakes recovers £50, and the expected value drops to nothing. Clear weighting tables are a fairness issue as well as a cost one; most regulators require them to be prominent.

Bonus only versus bonus plus deposit

“10x bonus” and “10x bonus plus deposit” read alike but are not. On a 100% match the second doubles the turnover, which doubles the edge recovered. In our base UK example, the cost per first-time depositor falls from £6.30 to £2.10. Players and comparison sites have learned to read the difference, so the cheaper version also scores lower on attractiveness. Compare them in the calculator.

Where tax breaks the zero-sum

• Non-deductible GGR tax (the UK): the operator's after-tax cost equals the player's expected value, but it is paid out of a smaller post-tax margin.
• Deductible or NGR-based tax: the state shares the cost. The operator's after-tax cost is lower than the value the player receives.
• Stakes tax (German virtual slots): the turnover a wagering requirement creates is itself taxed. The operator's cost can exceed the player's value several times over.

Our calculator applies each regime explicitly, and the country-by-country table lists which markets fall into which group.

Designing a fair offer that still pays back

• Pick the multiple from the value you want a finisher to keep, not from habit. At 96% RTP, 5x leaves 80% of the bonus with a finisher, 10x leaves 60%.
• Remember the cap: the UK allows at most 10x. Other markets have their own limits (Denmark also caps at 10x).
• Set the headline to what the segment is worth. A smaller wager-free bonus is often clearer for players and cheaper per FTD than a large wagered one.
• Use max cashout to limit tail risk on no-deposit offers, but keep it proportionate; very low caps attract complaints.
• Measure completion. It is the input that most changes the result, and it changes with every rule change.