UK Bonus Wagering Cap: The 10x Rule Explained

For most of the last decade, the honest answer to “is this casino bonus worth taking?” was usually no. A £100 bonus carrying a 35x wagering requirement obliged you to stake £3,500 before the money became yours, and £3,500 of turnover on a typical slot costs about £140 in expected losses. You were being offered £100 in exchange for an activity that, on average, cost you more than £100.

That is no longer the shape of the UK market. Social Responsibility Code provision 5.1.1 of the Gambling Commission's licence conditions now prevents operators from applying wagering requirements that make a customer play through bonus funds more than ten times. The change took effect on 19 January 2026— postponed from an originally announced date of 19 December 2025 — and it applies to every operator licensed in Great Britain except holders of gaming machine technical and software licences.

What the Rule Says

Two prohibitions were added to the existing rewards and bonuses provision. Operators must not:

• apply wagering requirements that require a customer to play through bonus funds more than 10 times; or
• include more than one type of gambling product — betting, casino, bingo, lottery — within a single incentive.

The second point matters more than it looks. Cross-product offers were a standard acquisition technique: claim a free bet on the football, then discover the qualifying conditions send you to the slots. The Commission's position is that an incentive should not push a customer into a form of gambling they did not choose. That practice is now prohibited outright rather than merely discouraged.

What the Cap Does to the Arithmetic

The cost of clearing a wagering requirement is not the stake, which comes back to you on average; it is the house edge applied to the total turnover. On a slot with a 96% return to player, every £100 staked costs £4 in expectation. So the expected cost of a bonus is roughly the required turnover multiplied by one minus the RTP.

On a £100 bonus that produces two very different pictures:

• Old 35x requirement. £3,500 of turnover. Expected cost at 96% RTP: about £140. Against a £100 bonus, an expected loss of roughly £40 for taking the offer.
• Capped 10x requirement. £1,000 of turnover. Expected cost at 96% RTP: about £40. Against a £100 bonus, an expected gain of roughly £60.

You can run the same calculation for any offer, including game contribution rates and your own deposit, with our wagering requirements calculator.

One caution, and it is not a formality. Expected value is an average over a very large number of repetitions. It says nothing about what happens to any individual bonus, where the ordinary outcome is still to lose the deposit. A positive expected value does not make gambling a way to make money, and treating it that way is the reliable route to losing more than you intended. If the arithmetic is the reason you are considering an offer, the arithmetic is also the reason to walk away from most of them.

What the Cap Does Not Cover

The multiplier is only one of several terms that determine what an offer really costs. The cap leaves the following untouched, and they are where the remaining cost hides:

• Game contribution. Slots typically count 100% towards the requirement, while blackjack and roulette often count 10% or less and some titles are excluded entirely. A 10x requirement cleared on a game contributing 20% needs five times the turnover. This is now the single most important number in a bonus's terms.
• Time limits. A requirement you cannot physically clear inside the window is worth nothing regardless of the multiplier.
• Maximum stake while wagering. Frequently £5 per spin. It caps how fast you can clear and, with a time limit, can make an offer impossible.
• Maximum win from bonus funds. A cap on winnings truncates the upside without reducing the turnover you have to produce.
• Sites without a Gambling Commission licence. The rule binds British licensees. An operator outside that perimeter is not covered, which is one more reason the licence is the first thing to check.

What to Do With an Offer Now

The practical sequence has not changed, only the numbers have. Confirm the operator holds a Gambling Commission licence. Read what the multiplier applies to and confirm it is at or below the cap. Find the contribution rate for the games you actually play, not the headline rate for slots. Check the time limit against how much you would realistically stake in that period. Then put the four figures into the calculator and look at the expected cost rather than the headline bonus.

For the underlying mechanics — how requirements are structured, why deposit-plus-bonus terms used to double the cost, and how contribution rates compound — see casino bonus wagering requirements explained and our reference guide to understanding wagering requirements.

Where This Sits in the Wider Reform

The bonus cap is one item in a sequence of consumer-protection changes running through 2025 and 2026. The other one with a near-term deadline is the standardisation of gross deposit limits on 30 September 2026. We track the full set of dates, each with its primary source, in the UK gambling regulation tracker.

Sources

• Gambling Commission, Gambling promotions to be safer and simpler — announcement of the cap and the mixed-product ban, and the revised commencement date of 19 January 2026.
• Gambling Commission, Licence Conditions and Codes of Practice, Social Responsibility Code provision 5.1.1 (Rewards and bonuses), paragraphs added on limiting wagering requirements and banning the mixing of products within incentives.
• Gambling Commission, Previous changes to the LCCP — effective dates and provision references.

Verified 19 August 2026 against the Gambling Commission's published announcement and LCCP change log. If you are reading this materially later, check the tracker for subsequent amendments.