Bonus Buy Slots in the UK: What the Feature Costs and Where It Stands

Updated September 2026

Licensed

Available in US

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The bonus-buy button sits in a strange corner of the online slots catalogue. It looks like a shortcut — pay a fixed multiple of your stake, jump straight to the bonus round — and the marketing copy tends to dress it up in exactly that language. The arithmetic of the feature is duller. A bonus buy is a wager like any other, sized up and paid in one lump, and the same Commission rules that govern ordinary spins govern it: the same stake ceiling, the same game-cycle timer, the same auto-play ban. Anyone telling a UK player otherwise is running outside the licence that lets a casino take bets in this country in the first place.

What follows is a working comparison of ten Gambling Commission-licensed UK operators, drawn from the Commission’s own public register on 18 September 2026, alongside the rules the buyer of a bonus round has to live under. The page treats the bonus-buy feature as a paid-for incentive built into a game’s mathematics — which is what it is — and works through what that costs a player who presses the button.

Currency and register note: the figures and licence entries below were verified against the Gambling Commission’s public register on 23 September 2026.

What a Bonus Buy Actually Is

A bonus-buy slot charges a fixed price — usually 50x to 100x the chosen base stake — and the press of the button takes the player straight into the bonus round, bypassing the base game entirely. The round plays out under the same reel configuration and the same random number generator as it would have done had the player earned it organically, and the price of the buy is the size of a single wager rather than a separate payment outside the spin economy.

The feature has its roots in the broader evolution of the slot itself. Charles Fey built the first automatic slot machine, the three-reel Liberty Bell, in San Francisco; it paid ten nickels (50 cents) for three aligned bells. Before him, Sittman and Pitt of Brooklyn had a poker-based machine in 1893 with five drums holding 50 card faces, though it made no automatic payouts. Herbert Mills produced the first copy of the Liberty Bell in 1907, and Norwegian mathematician Inge Telnaes patented in 1984 the random-number-generator reel-stop technology that lets manufacturers weight symbol probabilities independently of physical reel frequency — the underlying mechanic a bonus buy ultimately sits on top of.

Volatility describes how a slot distributes its wins: a low-volatility slot pays smaller amounts more often, a high-volatility slot pays larger amounts less often. Most bonus-buy rounds are designed around the high end of that scale, since the marketing pitch is “the big round, right now”. Return-to-player is the theoretical long-run percentage a slot returns across a vast number of spins; UK operators must monitor actual RTP against the advertised figure and raise alerts when performance falls outside the acceptable range, and the Commission reviews those monitoring processes in annual games testing audits.

What the bonus-buy feature does not do is change the mathematics of the round. A round bought for 100x the base stake is the same round a player would have entered after a sequence of organic spins; the buy simply transfers the wager into a single payment and pays the variance up front. That is the line that the rest of this page keeps returning to, because the same line is what brings the feature inside the Commission’s stake-limit framework rather than outside it.

How the Bonus Buy Slots Into UK Stakes and Loss Rules

The Gambling Commission’s stake and loss rules apply to a “game cycle” — one complete sequence of a slot’s events from wager to result, including any feature round triggered inside it. A bonus buy is one game cycle. That puts it inside the £5 ceiling for players aged 25 and over (in force since 9 April 2025) and inside the £2 ceiling for players aged 18 to 24 (in force since 21 May 2025), and the price the button offers is fixed against the same ceiling any ordinary spin sits under. A bonus buy advertised at “100x stake” cannot offer itself at £100 against a £5 ceiling; the available price at that stake level is the £5 cap, with everything above it blocked at the platform. The Commission’s own statement of the rule, when announcing the £2 tier, named 18-to-24-year-olds as the highest-problem-gambling-score age group and cited their lower disposable income alongside ongoing neurological development as the basis for the lower ceiling.

The same regulatory frame governs loss rather than stake. There is no state-set deposit or loss ceiling in Great Britain; the obligation instead sits with the operator, which must prompt a customer to set a financial limit before the first deposit (in force since 31 October 2025). The earlier obligation on the operator’s side — a permanent ban on auto-play, a minimum 2.5-second spin cycle, a ban on losses disguised as wins — applies equally whether the round was earned organically or bought at the press of a button.

The Government’s reasoning for the lower ceiling is worth keeping in view when weighing whether the buy feature suits a particular reader: 18-to-24-year-olds carry the highest problem-gambling score of any age group, lower disposable income and ongoing neurological development, and the £2 stake limit is calibrated to that cohort. A bonus-buy slot at that age bracket is, by design, a smaller purchase than the same title at age 25 and over. That is not a marketing caveat; it is the rule.

Why a Bonus Buy Counts Toward Wagering Caps and Other Licence Conditions

A bonus buy is a stake. The same is true of the wagering cap, in force since 19 December 2025, which limits wagering requirements to 10x the bonus amount for any promotion a UK-licensed operator runs. Mixed-product bonuses — stake on one product to receive free play on another — have been banned under the same rule. Both moves matter for a reader thinking about a bonus-buy session inside a promotional structure, because the price of the buy is the size of a single wager that the wagering multiple applies to in the same way as a normal spin.

The Commission keeps separate machinery for the feature itself. The Live return-to-player performance monitoring regime requires operators to compare actual RTP against the advertised figure and raise alerts when performance falls outside the acceptable range; a bonus-buy slot is not exempt from this. A confirmed RTP performance error triggers a key event the operator must submit to the Commission. Annual games testing audits review these monitoring processes. The published RTP of a bonus-buy slot is therefore a working number, not a label — the operator has both the obligation and the audit trail to defend it.

What that frame does not do is soften the cost of the feature for the player. The advertised RTP of a bonus-buy round is typically lower than the RTP of the base game, sometimes by 1–3 percentage points, on the basis that the operator has priced the buy to recover the cost of skipping organic triggers. A bonus-buy round can still beat the long-run average over a single session; the RTP is the average, not a guarantee. None of which alters the fact that the feature sits inside the same rules as any other slot, and the operator’s own RTP monitoring is the apparatus a reader falls back on when a bonus-buy slot’s behaviour looks unusual.

The Bonuses and Free Spies Question — How Promotions Sit Beside a Bonus Buy

A bonus-buy round and a promotional offer are two different things and they don’t always stack cleanly. A free-spin offer on a particular slot is a fixed-cost entry into a real-money round, and the question of whether the slot’s bonus-buy button can be pressed using a free-spin balance depends on the operator’s own promotion terms — there is no Commission rule that addresses the question one way or the other. The Commission’s wagering cap of 10x (in force since 19 December 2025) applies to the bonus amount and not to the buy price; it does not, on its own, stop an operator from offering free spins that can be used inside a bonus-buy round.

What the cap does is narrow the room a promotion can occupy. A bonus that lands at 10x wagering means that for every £10 of bonus money the player must place £100 of qualifying wagers before withdrawing the bonus as cash. A buy at 100x the base stake counts as one wager of that size — large enough to clear the wagering multiple in a single press at the highest end, but with the full variance of a bonus round sitting behind it. Promotional free spins are typically smaller in stake than a bonus buy, and a reader planning to clear a wagering multiple with one bonus-buy press is planning around a round whose base stake is capped at £5 (£2 for 18–24-year-olds).

The Commission’s stance on the question of credit, deposit and identity checks is the part of the rule set that runs underneath all of this. Credit cards have been banned for gambling since 14 April 2020, including credit cards routed through e-wallets; name, address and date of birth are verified before the first deposit or any play (since 7 May 2019); GAMSTOP self-exclusion is a mandatory condition of every online licence. A bonus-buy session at any operator named below is bound by all of those conditions in exactly the same way as any other session, and a site claiming that the bonus-buy feature sits outside one of them — outside GAMSTOP, outside the deposit prompt, outside the stake cap — is making a claim the licence does not support.

Comparing Ten UK-Licensed Operators on Bonus-Buy Slot Coverage

The table below compares ten Gambling Commission-licensed operators against four matters: the licence holder, the GB remote casino operating licence number, the domain’s status on the public register, and the operator’s support for bonus-buy slots. Several brands in the set share a single licence account, and the Commission’s register is the single source for each entry. Where the table shows an em dash, research carried no figure; where the table shows a status, the status is the register’s own classification.

Licensing and Account Summary

Bonus-Buy Support

The licence-account column tells a reader something the brand name does not: Paddy Power, Betway and BetVictor each sit under a separate licence account, while Virgin Games sits as a white-label domain on Gamesys Operations Limited’s licence. A white-label site trades under another company’s licence, and Virgin Games’ status on the register reflects exactly that — the licence account is Gamesys, the brand is Virgin, the brand is not itself a licence holder. The remaining brands in the set are listed as active domains of their respective licence accounts, which means the operator of record and the brand on the front of the website are one and the same. Every brand in the set takes part in GAMSTOP, because GAMSTOP participation is a mandatory condition of every online licence; an operator named here that does not connect to GAMSTOP has either had the connection switched off or is trading on someone else’s licence account and routing around it.

The empty column is the right one to leave empty. Research did not carry a confirmation, listing or comparable data point for bonus-buy slot coverage at any of these ten operators — neither the Commission’s register nor any of the consulted material lists which operators run which slots under what pricing structure for the bonus-buy button. A reader who wants to know whether a particular brand on this list offers a specific bonus-buy slot is reading a row that says “—” and a row that says “—” is one the page is honest about. The licensed-by-Commission column tells them the brand is allowed to offer the feature; the support column tells them whether research confirmed that this brand does.

Paddy Power — A Mature Brand on a Single Licence Account

Paddy Power runs on PPB Games Limited’s account (39411), holding the remote casino licence 039411-R-319335-010. The brand is listed as an active domain of this account. Research did not confirm any specific bonus-buy slot line-up here; the table shows an em dash for that detail.

What the licence-account column does say, plainly, is that Paddy Power is on a single named licence with the brand and the licence-holder operating as one entity, and that the Commission’s register confirms both the licence and the domain. The brand is therefore one a reader can verify directly on the register by name. GAMSTOP applies — every online licence-holder is required to participate — and the standard package of Commission rules on stake limits, deposit prompts and RTP monitoring applies alongside it.

For a reader comparing this row against the others, the practical question is whether the bonus-buy titles the player wants are present. That is a catalogue question the register does not answer, and the table is right to leave the cell empty until the answer can be given from a named source. As a row in a comparison, Paddy Power’s position is the position of any mature, well-established UK-licensed brand: a licence that is current, a domain that is active, a feature set the catalogue either carries or doesn’t.

kwiff — A Smaller Licence Account With an Active Domain

kwiff runs on Eaton Gate Gaming Limited’s account (44448), holding the licence 044448-R-323408-017. It appears on the register as an active domain. This licence account is a marker of a brand that arrived in the 2020s.

What makes kwiff stand out in this comparison is not a confirmed bonus-buy offering — research carries no data point for that either — but the structural fact of a smaller, newer licence account. The same Commission rules apply: GAMSTOP participation, the £5/£2 stake ceiling, the 10x wagering cap, the 2.5-second spin cycle, the deposit-prompt obligation. The brand is bound by the same frame as the larger ones, and the licence holder is verifiable on the register.

A reader weighing this row against, say, bet365’s row is weighing two licensed operators with very different catalogue sizes and very different histories. The Commission’s register treats them identically — both are current, both are active, both are bound by the same LCCP and Remote Technical Standards. The comparison the page can do with research in hand is the comparison on what the register shows; the comparison on what each brand’s bonus-buy catalogue contains is a comparison research did not back.

Betway — A Long-Standing Licence on a Single Account

Betway runs on Betway Limited’s account (39372), holding the licence 039372-R-319367-029. The brand is listed as an active domain. Betway’s licence account is one of the lower-numbered in the Commission’s sequence, similar to older operators.

Data regarding specific bonus-buy coverage is not available through the Commission’s public register. Where the table shows an em dash, no research confirmation was found.

The page’s job at this row is the job the page does at the other rows: state what research backed, leave what it didn’t, and let the comparison run on the matters the comparison can run on. A reader looking for the bonus-buy button on a specific Betway title is reading a comparison that points them to a brand that is verifiably licensed and that the comparison does not otherwise characterise.

bet365 — A Large-Scale Operator on a Hillside Licence Account

bet365 runs on Hillside (UK Gaming) ENC’s account (55149), holding the licence 055149-R-331499-004. It operates as an active domain. This licence belongs to a higher account-number band, typical of more recent registrations.

The single largest licensed operator in the set, on most reader-facing measures of catalogue size. Research carried no specific bonus-buy catalogue data point for bet365; what research did carry is the licence-account identification, and what the comparison on this row can claim is therefore narrow. The brand is licensed; the licence is current; the domain is active. The brand is bound by the same Commission rules as every other licence-holder. The catalogue comparison is a comparison research does not back, and the table is right to leave the cell empty.

For a reader comparing this row against the others, the relevant marker is the licence-account shape rather than the catalogue: a single ENC-registered operator with one licence account and one active domain. That is a clean structure; it is the structure the table records and the structure the comparison runs on.

Unibet — Platinum Gaming’s Active UK Domain

Unibet runs on Platinum Gaming Limited’s account (45322), holding the licence 045322-R-324275-019. It operates as an active domain. The brand is an established operator in the UK market, with a licence account in the middle of the Commission’s sequence.

Coverage details for this operator are not part of the current research data. The brand is verifiable via the public register.

What the row tells a reader is what every other row in the table tells a reader: a brand is licensed, the licence is current, the catalogue question is a question the page cannot answer from research. The brand-vs-brand comparison is a comparison on the matters research backed; the catalogue-vs-catalogue comparison is one the table does not run.

888casino — A Single Licence-Holder on a Recognised Brand

888casino runs on 888 UK Limited’s account (39028), holding the licence 039028-R-319297-014. It operates as an active domain. This is among the lower-numbered licence accounts, reflecting an early registration.

Specific bonus-buy coverage is not confirmed in research data for this brand. The brand is verifiable on the register.

A reader comparing 888 against the others is reading a brand with one of the older UK licence accounts, on a single named licence-holder. That is the shape the table records; it is what the comparison can do with research in hand. The catalogue question is left to a comparison that research did not back.

Virgin Games — A White-Label Brand Under Gamesys Operations

Virgin Games operates under Gamesys Operations Limited’s account (38905), which holds the licence 038905-R-319430-022. It is listed as a white-label domain, meaning the brand trades on the licence holder’s authority.

That structural distinction is the one the table records. Research data does not detail specific bonus-buy coverage at Virgin Games. A white-label operator is bound by the same LCCP and Remote Technical Standards as a directly-licensed operator.

For a reader weighing this row, the practical fact is that the brand and the licence-holder are different entities. The page records that, and the comparison runs on the same matters for every row.

Midnite — A Newer Licence Account With an Active Domain

Midnite runs on Dribble Media Limited’s account (42647), holding the licence 042647-R-321653-022. It appears as an active domain. The licence is in a mid-sequence band.

Research did not confirm a specific bonus-buy catalogue at Midnite. The brand is a single-name operator on a single licence account, verifiable by name and account number.

A reader comparing Midnite against the older majors is comparing a brand on a more recently-issued licence account, with the same Commission obligations. The catalogue comparison is a comparison research does not back; the licence comparison is one the page can run and does.

Betfred — A Mature Licence-Holder With an Active Domain

Betfred runs on Petfre (Gibraltar) Limited’s account (39544), with the GB remote casino operating licence 039544-R-319290-010 active on the Commission’s public register as of 18 September 2026, and Betfred listed as an active domain. The licence sits in a low-numbered account band — the same band as Paddy Power, Betway and 888 — a marker of one of the earlier wave of licence-holders. The licence-holder is Gibraltar-registered, which is not unusual among the larger UK-licensed brands; the licence itself is a Gambling Commission licence and the regulatory obligations are the Commission’s.

Research did not confirm a specific bonus-buy catalogue at Betfred. The brand is verifiable on the register by name and account number.

For a reader weighing Betfred against the others, the relevant markers are the licence-account age (lower-numbered, mature) and the licence-holder registration (Gibraltar-registered). Both are facts on the public record. The catalogue question is one research did not back; the comparison on what research backed is the comparison the page runs.

BetVictor — A BV Gaming Brand on a Single Licence Account

BetVictor runs on BV Gaming Limited’s account (39576), with the GB remote casino operating licence 039576-R-319370-028 active on the Commission’s public register as of 18 September 2026, and BetVictor listed as an active domain. The licence sits in the same lower-numbered account band as Paddy Power, Betway and 888 — a marker of one of the earlier wave of licence-holders.

Research did not confirm a specific bonus-buy catalogue at BetVictor. The brand is a single-name operator on a single licence account, verifiable by name and account number.

The row records the same shape as the other mature-brand rows: a low-numbered account, an active domain, a current licence. The catalogue comparison is left to research that did not back it; the licence comparison is the comparison the page can run.

Offshore Sites and the GAMSTOP Question

The “bonus buy slots not on gamstop” thread of this subject points at a market of sites that operate outside the Gambling Commission’s licence regime — typically Curaçao-, Malta- or Gibraltar-registered, with no obligation to participate in GAMSTOP, no Commission oversight, no requirement to honour the £5/£2 stake ceiling, no obligation to monitor actual return-to-player against advertised figures, and no ADR route for player complaints. Section 33 of the Gambling Act 2005 makes it an offence to provide gambling to people in Great Britain without a Commission licence; the Commission disrupts illegal sites through cease-and-desist notices, search-engine delisting referrals, and payment and hosting referrals, but has no ISP-blocking power. No penalty attaches to the player. What a player loses on an unlicensed site is protection, not stake money.

The stake-limit question is the sharpest part of that comparison. A licensed UK casino’s bonus-buy button is bound by the same game-cycle ceiling as any other spin: £5 for adults aged 25 and over, £2 for those aged 18 to 24. An offshore site that lets a player press a bonus-buy button at, say, 200x stake without checking age or country of residence is not bound by either ceiling. The Commission’s statement of the £2 lower limit tied the lower ceiling to a specific cohort with a higher problem-gambling score and a specific set of neurological and economic markers. A site that routes around that cohort identification is routing around the reasoning, not around an arbitrary figure.

The argument some offshore sites make is that anonymity is a feature. The Commission’s position is that anonymity is the absence of a feature a licensed site must run. Name, address and date of birth are verified before the first deposit or any play (since 7 May 2019). GAMSTOP self-exclusion runs from the player’s registration. A bonus-buy slot at a licensed UK casino is a slot the player cannot buy their way into while self-excluded. An offshore site that does not connect to GAMSTOP is offering exactly the opposite — a slot the player can buy into in spite of a self-exclusion they have asked to be honoured. The first is a feature; the second is the absence of one.

What a Bonus Buy Costs a Player in Real Terms

A bonus buy is a single wager, sized up. The exact cost varies with the slot, the chosen stake and the bonus round’s design; the typical range is 50x to 100x the base stake. At the Commission’s stake ceiling of £5 (£2 for 18–24-year-olds), a 100x buy costs £500 to press (£200 for the under-25 cohort). The result of the press is one round played under the slot’s bonus-round mathematics; the round may return more or less than the buy price, and the RTP figure the operator advertises for the bonus round is the long-run average across a vast number of such presses.

That is the part of the picture the marketing copy tends to flatten. A 100x buy at the £5 ceiling looks like “press for £500, win up to X”. The shape of the round behind the press is the shape of any bonus round: a fixed reel configuration, a fixed paytable, a fixed probability distribution over outcomes. The buy is a single wager against that distribution, sized up. The Commission’s RTP-monitoring regime requires the operator to track the actual RTP against the advertised figure and to raise alerts when the actual figure falls outside the acceptable range — a working audit trail, not just a published figure. The reader pressing the button at a licensed UK casino has that audit trail behind the press; the reader pressing it at an offshore site does not.

A worked illustration with the £5 stake cap and the 10x wagering multiple (in force since 19 December 2025) makes the sizing concrete. Take a hypothetical £50 bonus with the 10x wagering cap — the operator must let the player withdraw the bonus as cash after £500 of qualifying wagers. A single 100x bonus buy at the £5 stake cap clears the wagering multiple in a single press. That is the route the figure runs to: a bonus cleared in one round, with the full variance of a bonus round sitting behind it. For a player with a smaller bankroll, the same bonus-buy round at the £2 stake cap for 18–24-year-olds would cost £200 to press, against a £500 wagering target — one press that does not quite clear the multiple, with a second press required to reach the £500 mark. The cap and the wagering multiple combine into a sizing the operator cannot push higher.

The cost is what it costs. The advertised RTP is the long-run average; the round is one round, and the variance of a single round is what it is.

Responsible Play Around the Bonus Buy Feature

The Commission’s responsible-gambling framework sits around the bonus-buy feature in three places: stake limits, the financial vulnerability check and the GAMSTOP self-exclusion scheme. The £5/£2 stake cap is the first; the financial vulnerability check (a check against public data at £150 net deposits in a rolling 30 days, in force since 28 February 2025) is the second; the GAMSTOP scheme (mandatory for every online licence since 31 March 2020, with self-exclusion periods of six months, one year or five years) is the third. None of the three is optional at a licensed UK casino, and a site that does not run any of them is not licensed.

The financial vulnerability check matters for bonus-buy play because the buy is a large single wager relative to ordinary spin costs. A player whose deposits take them past £150 in a rolling 30-day window will trigger a public-data financial vulnerability check; the check may prompt further customer interaction. The auto-play ban (in force since 31 October 2021) keeps a player from pressing the bonus-buy button on a chain of automated presses, and the 2.5-second spin-cycle minimum keeps any single round — including the bonus-buy round itself — from running faster than 2.5 seconds from press to result. The deposit prompt (in force since 31 October 2025) ensures a player has set a financial limit before the first deposit.

The GAMSTOP self-exclusion scheme is the third leg of the structure. A player who has registered with GAMSTOP for six months, one year or five years cannot gamble at any GB-licensed online operator during the exclusion period, and the period cannot be cancelled early. A bonus-buy slot at a licensed UK casino is a slot the player cannot buy their way into while self-excluded. The mechanism is what stops a player from circumventing an exclusion decision through the bonus-buy button. A bonus-buy slot at an offshore site that does not connect to GAMSTOP is the opposite of that mechanism.

A Note on Game-Cycle Design and the £5 Stake

A bonus-buy button priced at 100x stake, when the Commission’s stake ceiling is £5 (£2 for 18–24-year-olds), has its effective price set by the ceiling: £500 at the £5 cap, £200 at the £2 cap. The button does not offer itself at higher prices within the licence. The Commission’s reasoning for the £2 ceiling — a higher problem-gambling score, lower disposable income, ongoing neurological development in the 18–24 cohort — is the reasoning that set the figure. The lower ceiling is calibrated, not arbitrary.

That is the shape of the rule that frames the whole comparison. A bonus-buy slot is a slot the player presses a button to enter. The button is bound by the same ceiling as any other slot spin, and the same RTP-monitoring regime applies to the round the button buys. The comparison between two licensed operators is a comparison on the licence structure, the catalogue and the bonus-buy title availability — not on the rule, which is the same for every operator in the table.

The Wider Slot Landscape Outside the Bonus-Buy Feature

The wider slot catalogue at any licensed UK operator includes ordinary slots without a bonus-buy button, table games, live-dealer games and the multiplayer crash-game genre. Aviator, developed by Spribe — a games studio founded in 2018 — was released in 2019 and is described by Spribe’s CEO as “the first true multiplayer crash game in the regulated igaming space”. The game runs a multiplier curve from 1.00x until the round randomly crashes; the player must cash out before the crash to win the stake multiplied by the current value. Spribe has reported more than 42 million active users on Aviator and around 350,000 bets per minute across more than 5,000 operators worldwide.

The crash-game genre is a different shape from a bonus-buy slot: a continuous multiplier curve rather than a fixed reel configuration, a cash-out decision rather than a buy decision. The Commission’s stake caps apply to the game cycle, which the genre’s design has the operator defining; the same £5/£2 ceiling, the same spin-cycle minimum, the same auto-play ban apply in principle. The catalogue context is the context the table does not run a comparison on, because the table’s matter is the bonus-buy feature rather than the rest of the slot catalogue.

Quick Reference: The Rules in Plain Terms

The rules a reader pressing a bonus-buy button at a licensed UK casino has to live under, in the order they bite:

• Stake ceiling per game cycle: £5 for ages 25 and over (from 9 April 2025); £2 for ages 18 to 24 (from 21 May 2025).
• Wagering requirement cap on promotions: 10x the bonus amount (from 19 December 2025). Mixed-product bonuses banned.
• Spin cycle minimum: 2.5 seconds. Auto-play banned. Losses disguised as wins banned.
• Reverse withdrawals: banned since 31 October 2021 — once a player requests a withdrawal, the funds cannot be re-gambled.
• Credit cards: banned for gambling since 14 April 2020, including credit cards routed through e-wallets.
• Identity check: name, address and date of birth verified before the first deposit or any play, since 7 May 2019.
• Deposit prompt: operator must prompt a customer to set a financial limit before the first deposit, since 31 October 2025.
• Financial vulnerability check: at £150 net deposits in a rolling 30 days, against public data only, since 28 February 2025.
• GAMSTOP self-exclusion: mandatory for every online licence since 31 March 2020; six months, one year or five years; cannot be cancelled early.

Each rule is a Commission rule, applied at the operator level. A reader at a licensed UK casino has the full set; a reader at an offshore site has whatever that site decides to run.

Reading the Comparison on the Matters That Matter

The comparison the table runs is a comparison on licence-holder, licence number, domain status and bonus-buy support. The licence-holder column tells a reader who is on the other side of the bet — the entity that holds the licence and is accountable to the Commission. The licence number is the unique identifier the reader can use to look up the licence on the Commission’s public register; the structure of the number itself is documented by the Commission, with the leading six digits repeating the licence-holder’s account number and the “R” marking the licence as remote (online). The domain status tells the reader whether the website the player is visiting is on the register as active, inactive or white-label.

The bonus-buy support column is empty across the table — research did not back a specific data point for any of the ten operators. That is the right state for the table: the cells are honest. The licensed-by-Commission column tells the reader the brand is allowed to offer the feature; the empty support column tells the reader whether the brand is confirmed to do so, and in this case the answer is “not from research”. The catalogue comparison is one a reader has to run from the operator’s own catalogue pages.

A licence is the floor; the catalogue is the layer above. The page records the floor across all ten operators; the catalogue is a layer the page cannot compare without data research did not carry.

A Note on Player Tax and Operator Duty

Players pay no tax on gambling winnings in the UK. Operators pay Remote Gaming Duty, raised from 21% to 40% from 1 April 2026. The player-side tax position is not something a reader has to model into a bonus-buy decision; the duty figure is a marker of operator cost rather than player return. A reader comparing two operators is not comparing their tax treatment — both are bound by the same duty regime — but is comparing their catalogue, their licence structure and their bonus-buy title availability, which are the matters the comparison runs on.

The 1 April 2026 duty change has not been reflected in any operator’s catalogue as of 18 September 2026; it is a forward-looking tax shift the Commission’s own records do not yet show operating against. For a reader comparing operators today, the duty change is not a comparison variable; it is a context the comparison runs in.

Frequently Asked Questions

How much does buying the bonus round on a slot actually cost?

A bonus buy is priced as a multiple of the base stake, typically 50x to 100x. At the £5 stake ceiling (the cap for adults aged 25 and over), a 100x buy costs £500 to press; at the £2 ceiling (the cap for ages 18 to 24), the same buy costs £200. The round plays out under the slot’s bonus-round mathematics, and the buy is a single wager rather than a separate payment outside the spin economy.

Do bonus-buy slots count toward the same stake limits as ordinary spins?

Yes. A bonus-buy purchase is one game cycle under the Commission’s rules, and the £5/£2 stake ceiling applies to it in the same way it applies to an ordinary spin. The same spin-cycle minimum (2.5 seconds), the same auto-play ban, and the same RTP-monitoring regime apply to the round the buy triggers.

Is the bonus-buy feature available on every slot at a UK casino?

No. The feature is a slot-design choice, not a Commission rule; some titles offer it, some do not. A licensed UK casino’s catalogue carries both kinds, and the question of whether a particular slot has the feature is a catalogue question the Commission’s register does not answer.

How does the return-to-player rate change when the bonus is bought?

The advertised RTP for a bonus-buy round is typically lower than the base game’s RTP, sometimes by 1–3 percentage points, on the basis that the operator has priced the buy to recover the cost of skipping organic bonus triggers. The round is the same round a player would have entered organically; the buy simply transfers the wager into a single payment and pays the variance up front.

Are bonus-buy slots covered by GAMSTOP self-exclusion in the same way as ordinary slots?

Yes. Every GB-licensed online operator is required to participate in GAMSTOP, and a bonus-buy slot at a licensed site is covered by the same self-exclusion as any other slot. A player who has registered with GAMSTOP for six months, one year or five years cannot press the button at any licensed operator during the exclusion period; the period cannot be cancelled early.

Must a bonus-buy slot be offered only by a Gambling Commission-licensed casino in the UK?

Any operator taking customers in Great Britain must hold a Gambling Commission licence, under the Gambling (Licensing and Advertising) Act 2014; a Curaçao, Maltese or Gibraltar licence is not a substitute. Section 33 of the Gambling Act 2005 makes it an offence to provide gambling to people in Great Britain without a Commission licence. A bonus-buy slot, like any other slot, must be offered only by a licensed operator to be legally available to UK players.

Published by the jackpotslotsuk team.