The 2023 White Paper
The UK Government published High Stakes: Gambling Reform for the Digital Age in April 2023. The white paper emerged from a review begun in December 2020, triggered by widespread recognition that the Gambling Act 2005 — drafted before the smartphone era and the dominance of online gambling — required substantial updating to address new patterns of harm.
The review was controversial from the outset. The gambling industry — which generates approximately £14 billion in gross gambling yield annually — lobbied against the most restrictive proposals, particularly affordability checks and slot stake limits. Campaigners and clinicians argued for more ambitious measures. The white paper represented the government's attempt to balance industry sustainability against evidence of significant harm, particularly among the approximately 0.4% of the adult population estimated to be problem gamblers and the larger group experiencing moderate risk.
Online Slot Stake Limits
One of the most tangible consumer-facing reforms was the introduction of stake limits for online slot games. From September 2024, UKGC-licensed operators are required to cap online slot stakes at:
- £5 per spin — for customers aged 25 and above
- £2 per spin — for customers aged 18 to 24
The limits apply to online slots only. They do not affect virtual table games (roulette, blackjack, baccarat), live dealer games, sports betting, in-play betting, or poker. The lower limit for 18-to-24 year olds reflects research showing that young adults are a higher-risk group for gambling harm, with higher rates of problem gambling and less established impulse control.
Land-based slot machines (B-category machines in casinos and betting shops) are not affected by the online stake limits — their limits are set under separate gaming machine regulations.
Financial Risk Checks
The affordability check regime — formally referred to as "financial risk checks" — was among the most debated proposals in the white paper. The checks are structured in two tiers:
- Light-touch checks — automated, frictionless checks using credit reference data. These trigger at £500 net losses within a rolling 30-day period. The customer is typically unaware the check is occurring; the operator simply confirms their financial situation does not indicate the level of loss is causing harm.
- Enhanced checks — triggered at £25,000 net losses within a rolling 12-month period. Operators may request documentation from high-spending customers to verify that losses at this level are within the customer's financial means. Implementation is being phased, with the UKGC consulting on operational details.
The thresholds were substantially revised from the white paper's original proposals (£125 and £1,000 respectively) following a period of public consultation during which the industry argued the original thresholds would affect a large proportion of recreational gamblers and create disproportionate friction.
Statutory Gambling Levy
The statutory gambling levy came into force in April 2025. It replaces the previous voluntary Research, Education and Treatment (RET) system, under which operators self-reported contributions to approved charities and research bodies. Voluntary contributions were widely criticised as inadequate — total voluntary RET funding was approximately £10 million per year against an industry generating billions in annual yield.
Under the statutory levy, all UKGC-licensed operators pay a mandatory contribution based on their gross gambling yield. Rates vary by operator type and are set by the Secretary of State. Total levy proceeds are targeted at approximately £100 million per year, distributed to NHS England (for specialist gambling treatment), GambleAware (for the national helpline, early intervention, and awareness programmes), and commissioned research bodies.
The levy is collected by the UKGC and distributed through a commissioning framework. Operators no longer have discretion over which organisations receive their contributions.
Advertising Restrictions
The white paper proposed a package of advertising reforms, implemented through updated UKGC codes and revised Advertising Standards Authority (ASA) guidance:
- Sports sponsorship white list — restrictions on gambling advertising in and around live sports, particularly TV broadcasts accessible to children
- Bonus restrictions — enhanced requirements for clear, non-deceptive bonus terms; restrictions on offering incentives to customers showing signs of harm
- Celebrity and influencer restrictions — gambling advertising cannot use personalities likely to appeal primarily to under-18s
- Targeting restrictions — online behavioural targeting of gambling advertising must not use characteristics associated with vulnerability or under-18 interest profiles
Shirt and stadium sponsorship by gambling brands remains permitted in Great Britain, though the industry agreed a voluntary Premier League front-of-shirt sponsorship phase-out which came into effect at the start of the 2026–27 season.
Implementation Status
Not all white paper proposals require primary legislation. Many are implemented through UKGC LCCP updates (which are licence conditions operators must comply with as a condition of holding a licence) or through secondary legislation. The main milestones:
- September 2024 — Online slot stake limits (£5/£2) effective
- April 2025 — Statutory gambling levy in force
- 2025–2026 — Financial risk checks phased implementation
- Ongoing — Advertising guidance updates through ASA code revisions