What Existing Customer Betting Offers Actually Cost in Great Britain

Updated October 2026

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Existing customer betting offers in Great Britain have changed. Since 19 January 2026 a single rule reshapes the arithmetic: the Gambling Commission caps wagering requirements on bonuses at 10x, and any promotion tying a sports bet to a casino bonus is banned outright. These pages look at what that does to the headline figures every bookmaker still publishes, and at the conditions the marketing does not put on the front of the ad. The angle is cost. A £40 free bet is not £40.

The data current as of 27 October 2026 and verified against the Gambling Commission’s public register and each operator’s own published terms.

How We Ranked the Ten Operators

A shortlist of ten brands was drawn from the Commission’s public register of remote betting licence holders for Great Britain. Every brand listed operates under a licence issued to a named company, and every licence is searchable by business name, trading name, domain or account number through the register. That is the starting condition. Beyond it, the ranking is built on five criteria: the value of the headline promotion stated as a cash equivalent after the book’s own rules; the minimum odds and qualifying stake that gate the free bet; the days the credit is valid for; whether the offer asks the customer to bet on more than one product type; and the wagering requirement on any bonus, which under the new rule cannot exceed 10x.

The ranking is descriptive. It compares what each operator publishes and what those terms cost a punter who claims the offer. It is not a prediction, not a tip, and not a recommendation to sign up anywhere. A bookmaker outside this list may serve a punter better, and a brand on this list may be wrong for a particular reader.

The Landscape at a Glance

Licence details were checked against the Commission’s public register on 27 October 2026. The table omits any column research does not consistently cover across the ten operators, which keeps the comparison honest. Where an offer type is not stated in the same form for every brand, the cell states only what that operator’s own terms say, in its own words.

What “Existing Customer Offers” Actually Means

An “existing customer offer” is any promotion an account holder who has already passed sign-up can claim. That covers most of what a bookmaker advertises beyond the first deposit. Free bets credited after a settled qualifying bet, odds boosts triggered by a minimum stake, acca insurance that refunds a losing leg as a free bet, profit boosts that multiply a winning return, and loyalty tiers that exchange points for free bets all sit in this category. Welcome offers, by contrast, target new customers only and usually require a first deposit and a first bet inside a short window; they are excluded from this page’s subject but feature here where they set the terms an existing account inherits.

The distinction matters for the cost calculation. A welcome bonus tends to be the headline figure because the marketing has the most to gain from new sign-ups. Existing-customer offers tend to be smaller, shorter, and tied to a specific event or stake. The arithmetic of value does not change between the two. What changes is the window in which the offer must be used and the qualifying bet that triggers it.

Three terms deserve their own definitions before any offer is read.

Wagering requirement. A multiplier applied to a bonus that says how much must be staked before the bonus, or its winnings, can be withdrawn. A £10 bonus with a 10x wagering requirement needs £100 of qualifying stakes before withdrawal. Under the Commission’s promotion rules in force since 19 January 2026 the cap on this multiplier is 10x. A bonus that requires more is no longer a lawful offer in Great Britain.

Minimum odds. The shortest price at which a qualifying bet (or a bet that counts toward a wagering requirement) may be placed. Minimum odds are stated in fractions by British bookmakers, and the decimal form is given beside each one for clarity. A bet at shorter odds than the stated minimum does not count toward the requirement.

Free bet. A credit placed on a bet whose stake is not returned with the winnings. If a £10 free bet is placed at odds of 3.00 and wins, the account is credited with £20 of profit, not £30 of return. This single difference is why a “£40 free bet” is rarely worth £40 and why a bonus with no wagering requirement is rarer than the marketing suggests.

The Statutory Frame: What the Gambling Commission Now Requires

The Gambling Commission licenses every operator that takes bets from customers in Great Britain. The framework is the Gambling Act 2005, as amended by the Gambling (Licensing and Advertising) Act 2014, which requires a Commission licence for any operator whose remote facilities are used in Great Britain regardless of where the company is based. A Gibraltar or Maltese licence does not substitute. Northern Ireland is outside the 2005 Act, so a “GB-licensed” brand is licensed for Great Britain, not the whole United Kingdom.

The relevant licence categories are remote general betting standard (real events), remote general betting standard (virtual events), remote general betting limited, remote pool betting and remote betting intermediary (the latter covers betting exchanges). A spread-betting product that is a financial contract is regulated by the Financial Conduct Authority, not the Commission; a spread-betting product that is a bet is inside General Betting Duty and the Commission’s regime. The distinction is drawn by the contract, not the brand name.

Two Commission rules do the heavy lifting on this page. The first is the bonus cap, in force since 19 January 2026: wagering requirements on bonuses cannot exceed 10x, and mixed-product promotions that ask the customer to gamble on two or more product types (for example betting and casino) are banned. Whether the 10x cap applies to free bets with no wagering condition, and whether any cap exists on the money value of a bonus, is not established in the Commission’s published guidance. The second is the financial vulnerability check, in force since 30 August 2024 and triggered since 28 February 2025 when a customer’s net deposits exceed £150 over a rolling 30 days: the operator runs a public-record check for county court judgments and bankruptcy, not a credit-reference or income check. The planned next stage, the financial risk assessment (often called “affordability checks”), was announced in a Commission article dated 7 July 2026 as a staged rollout with no start date.

Advertising is not licensed by the Commission. It runs through the CAP Code for non-broadcast media and the BCAP Code for broadcast, both enforced by the Advertising Standards Authority, alongside the Commission’s marketing conditions. The CAP Code section 16 requires marketing to be socially responsible, of no strong appeal to under-18s, and never to feature someone who is or seems to be under 25 in a significant role (with an exception for marketing placed where a bet can be made directly). Since 1 August 2019 betting advertisements are not shown on live television from five minutes before a sporting event to five minutes after, before the watershed; horse and greyhound racing are excluded.

What a Free Bet Actually Returns

The arithmetic behind the headline.

A free bet is a stake whose value is not returned when the bet wins. Place a £10 free bet at odds of 3.00 and the account is credited with £20 of profit, not £30 of return. Compare that to a cash bet of £10 at the same price: that returns £30 of which £20 is profit and £10 is the original stake. The difference is the £10 stake, which the free bet never gives back.

For a combination bet the odds of the legs multiply into one price. Three legs at 2.00, 3.00 and 4.00 give combined odds of 24.00. A £10 free bet on that combination wins £230 of profit if all three legs win, not £240.

The core calculation, on a fixed scenario. Coral’s sports welcome offer credits £40 in free bets when a £20 qualifying bet is placed at minimum odds of 2.0. If that £40 is split into four £10 free bets and each is used on a single at average odds of 3.00, the expected profit is £40 × (3.00 − 1) ÷ 3.00 = £26.67 of expected profit before any losing free bet is counted, which trims the figure further when the market’s margin is applied. The £40 headline is therefore worth somewhere in the mid-£20s on average, and that is before the 7-day expiry forces the bettor to find prices inside a tight window.

The same shape applies to every existing-customer offer that pays in free bets: the headline number is the gross credit, the expected value is the credit multiplied by the net-price-per-unit-bet (odds − 1) divided by the odds, applied to a market with the operator’s built-in margin. The punter’s edge comes from beating the margin. The book’s edge comes from the margin itself.

What the 10x Wagering Cap Does to an Offer

A wagering requirement of 10x means a £10 bonus requires £100 of qualifying stakes before any winnings can be withdrawn. The arithmetic belongs to the offer’s terms and runs as follows: required turnover equals the bonus base (the bonus alone, or the bonus plus deposit, as the offer states) multiplied by the wagering factor; the number of bets equals the turnover divided by the stake per bet; only bets at or above the minimum price count toward the turnover.

The calculation on the offer terms. Coral’s £40 free bet welcome requires a £20 qualifying bet at minimum odds of 2.0. Once credited, the £40 in free bets carries a 7-day window and is paid as free bet credit, not bonus cash, so the 10x cap applies only if any bonus cash is attached to the offer. For offers where the bonus is cash and the wagering multiple is stated as 10x, a £10 cash bonus requires £100 of qualifying turnover. At a typical £10 stake per bet that is 10 bets. At minimum odds of 2.0 and a market margin of around 5%, the expected cost of clearing the offer is £100 × 0.05 = £5, so the punter clears a £10 bonus for an expected £5 of margin cost, which leaves the offer worth £5 of expected value before any winning selection is priced in. Where the wagering multiple is lower (and the cap now forbids anything above 10x), the cost scales down with it. Where the base is bonus plus deposit, the turnover scales up by the deposit amount.

The conclusion is a band, not a single figure, and the band is conditional on the market being bet on, the stake per bet, and the margin the operator runs on that market. Under the cap, no offer in Great Britain should require more than a 10x multiple, and most existing-customer offers pay in free bets rather than bonus cash, which keeps the 10x cap from biting the punter at all.

How the Calculation Lands in the Real Market

An offer’s cost depends on three things the marketing tends to keep off the page.

The first is the market. A free bet used on a Premier League match winner (a 1X2 market with three outcomes) carries a lower margin than the same credit used on a same-game builder (which combines markets from one event into one bet) or a long-shot acca (which compounds margin across legs). The punter who uses a free bet on a market with the lowest margin on the site is closest to the headline value of the credit.

The second is the minimum odds. A free bet that may only be used at minimum odds of 1.5 has a smaller expected value than one usable at any price, because the longer odds carry a higher (odds − 1) ÷ odds ratio on a winning bet. QuinnBet’s free bets, for example, require minimum odds of 1/2 (1.50) and cap maximum odds at 50/1, which narrows the field for the punter who would prefer to use a credit on a longer price.

The third is the expiry. A 7-day expiry on free bets, which most of the operators in this ranking state, forces the punter to find qualifying prices inside a tight window. Some offers, including William Hill’s Football Acca Boost, run until 30 May 2027; others expire inside seven days of credit. The shorter the window, the less time the punter has to find a price that justifies the credit.

The Bet-Builder and Same-Game Multi

A bet builder combines markets from one event into a single bet, available pre-match and in-play; bet365 calls its version Bet Builder+, which extends across one event, and Kwiff runs a Bet Builder+ that combines builders from different games. The margin on a same-game multi is the compound of the margins on the underlying markets, and that compound is higher than the margin on any single market in the multi. A free bet used on a bet builder is therefore worth less in expected terms than the same free bet on a single. The trade-off is that a builder is the only way to combine correlated selections from one match into a single price.

Acca Insurance and Loyalty

Acca insurance refunds a stake as a free bet if one leg of a qualifying accumulator loses. BoyleSports’ version requires opt-in, a £5 minimum stake, minimum odds of 1/2 and pays a maximum refund of £20 as a free bet expiring in 7 days; bets must be placed and settled on the same day. Acca loyalty pays a free bet when a minimum number of legs at a minimum combined price settle as winners; BoyleSports’ scheme requires a £5 stake, minimum combined odds of 3/1 and 5 or more settled legs. Both refunds are paid in free bet credit, not cash, and the stake is not returned.

Profit Boost and Daily Boost

A profit boost multiplies the winnings on a settled bet, usually by a percentage. Copybet’s Daily Profit Boost goes up to 15%. A boost of 15% on a winning £10 single at odds of 3.00 adds £3 of profit, taking the total to £23 instead of £20. The boost is paid as cash or as bonus funds depending on the operator’s terms; where it is paid as bonus funds the 10x wagering cap applies. Where it is paid as cash with no wagering condition it is the cleanest value on the page.

Odds Boosts and Best Odds Guaranteed

An odds boost raises the price of a specific market above the headline figure. Ladbrokes and Star Sports run them on selected events; Coral’s Odds Booster covers hundreds of markets. Best Odds Guaranteed (BOG) pays the higher of the price taken and the starting price (SP) on UK and Irish horse racing, and Ladbrokes, Unibet and Kalooki Sportsbook all state it as a feature. BOG is paid on the winning return and does not compound margin in the way a profit boost does; it is closer to a price concession than a promotion, and it is one of the few offers where the punter’s expected value can move above the headline.

Responsible Gambling and the Self-Exclusion Framework

Every GB-licensed online operator takes part in GAMSTOP, the national multi-operator online self-exclusion scheme that became a mandatory licence condition on 31 March 2020. Self-exclusion periods are six months, one year, five years, or five years with auto-renewal, and after the minimum period the exclusion stays in place for a further seven years unless the customer asks GAMSTOP to remove it. GAMSTOP covers online sites and apps; betting shops use a separate multi-operator service.

Identity verification is required before the first deposit or wager, including for free bets and bonuses, since 7 May 2019. That means licensed operators check name, address and date of birth before any credit can be claimed, which is why anonymous play is not available on a GB-licensed site. The verification is a licence condition, not an optional safeguard.

Safer gambling tools are required of every operator. DAZN Bet states it provides deposit limits, loss limits and wagering limits as standard; the wider industry offers time-outs, reality checks, session limits and product blocks. The Commission’s Remote Technical Standards (RTS 12) require operators to offer a gross deposit limit on a fixed time frame; the first changes applied on 31 October 2025 and a second phase was postponed to 30 September 2026. There is no state-set deposit or loss ceiling for betting; limits are the customer’s choice.

Help is available outside the operators. GamCare runs the National Gambling Helpline. GambleAware funds treatment and research. The NHS runs gambling clinics across Great Britain. Gamblers Anonymous runs peer-support meetings. A punter who feels the offer is shaping their decisions rather than the other way around can self-exclude through GAMSTOP and contact any of the above for confidential support.

The Tax Position in Great Britain

The player pays no tax on betting winnings in Great Britain. That is the headline rule, and it is general information rather than tax advice; a professional gambler, or anyone whose betting is treated as a trade, should ask HMRC or an adviser. General Betting Duty is the operator’s tax on gross profits from betting, currently 15%; from 1 April 2027 a new remote betting rate of 25% applies within it, while remote bets on UK horse racing, bets on self-service betting terminals in licensed premises, pool betting and in-person betting stay at 15% (HM Government policy paper of 26 November 2025). Until 1 April 2027 the remote rate stays at 15%. Whether operators pass duty on through odds is not established; never write that the player is charged duty. The Commission’s statutory levy is a separate charge, not a tax.

Offshore and the Loss of Protection

A GB licence is compulsory at the point of consumption. Providing gambling facilities in Great Britain without the licence the Act requires is an offence under section 33 of the Gambling Act 2005, aimed at the operator; on summary conviction the penalty is up to 51 weeks’ imprisonment, a fine up to level 5, or both (six months in Scotland). There is no offence aimed at the customer who merely bets on an unlicensed site, and a customer should not be told that using one is illegal. What the customer loses is protection: no GAMSTOP coverage, no Commission complaints route, no approved dispute-resolution body, no British consumer redress if funds are withheld, and no obligation on the operator to honour the 10x bonus cap, the £150 vulnerability check, the credit-card ban or any other LCCP condition. Enforcement against unlicensed operators is disruption rather than blocking: cease-and-desist notices, search-engine referrals, work with registrars, hosts and payment providers, and court-order DNS blocking powers the Commission has been given or is about to receive. ISP blocking is not in operation.

The honest framing is licensed equals checks, limits, GAMSTOP and the bonus cap, but also verification before the first bet; unlicensed equals none of those protections and possible loss of funds. Neither is the safe choice by default.

The Operators in Detail

Each operator below holds a remote general betting standard (real events) licence issued by the Gambling Commission and is searchable on the Commission’s public register. The licence number and licence holder are stated for verification. What follows is what each operator’s own terms and the Commission’s register record show, plus the page’s judgement of what that means for the punter.

BetUK

LeoVegas Gaming PLC holds the licence and runs BetUK under account 039198-R-319450-029. The welcome offer is four £10 free bets credited after a qualifying deposit and sports bet within 7 days of registration; two of the free bets are football accas of 4+ selections and two are multiples of 2+, each valid for 7 days. Opt-in is required. The structure splits the credit into accas rather than singles, which means the punter using the free bets must accept the compound margin of a multi rather than the lower margin of a single.

The split structure is the point. A punter who would have used all £40 on singles cannot do so here. The offer suits a regular acca punter who would bet those selections anyway; it costs a single-bet punter expected value compared with a flat free-bet offer.

Copybet

Copybet UK Limited holds account 053774-R-330743-010. The headline existing-customer features are the Acca Booster, which pays up to a 100% cash bonus on accas of 3+ selections, and the Daily Profit Boost, which goes up to 15%. Both are paid as cash according to the App Store listing and are event-led, which means the offer appears for a specific match or meeting rather than running as a standing promotion. The 10x wagering cap does not bite a cash bonus with no wagering condition.

The Acca Booster is the strongest single feature on this page: a 100% cash bonus on a winning acca is paid in money, not free bet credit, and the punter keeps the stake. A punter whose betting is acca-led will find Copybet’s existing-customer terms the most generous in this ranking; a single-bet punter will find less to claim.

Ladbrokes

LC International Limited holds account 054743-R-330863-014, which covers remote general betting standard (real events) and remote betting intermediary, the latter meaning Ladbrokes runs exchange infrastructure alongside its sportsbook. The headline existing-customer features are odds boosts on horse and greyhound bets, Best Odds Guaranteed on UK and Irish racing, in-play markets and Acca Boosts. The welcome offer for new customers is not the subject of this page.

Best Odds Guaranteed is the quiet value: a punter who takes a price on a UK or Irish horse early and sees the SP drift higher is paid at the higher price, with no wagering requirement and no margin compound. Ladbrokes suits a punter whose betting is horse-racing-led and who wants the long-term edge of BOG alongside an exchange infrastructure for lay bets.

Bet600

Tyche Tech Limited holds account 044731-R-323941-016. The welcome offer requires 5 qualifying single bets of £10 or more at minimum odds of 2.0 within the first 7 days, after which one £10 free bet is credited. The structure is heavier on qualifying volume than most welcome offers: £50 of qualifying bets for £10 of free bet credit, against a Coral-style £20 qualifying bet for £40 of free bets.

The high qualifying volume is the cost. A punter who would have bet £50 in the first 7 days anyway will claim the offer at near-zero cost; a punter who has to manufacture the qualifying volume pays the margin on £50 of betting for £10 of expected-value credit. The offer suits a high-volume punter in their first week on the site.

Bet Ahoy

Bet Ahoy Ltd holds account 100094-R-341742-003. The welcome offer is “Bet £10 & Get £10 in Free Bets”, split into a £5 sports bet and a £5 acca. The qualifying bet is a single £10 stake, the credited free bets are valid for 7 days, and the offer sits at the lower end of the value scale on this page.

The split between a sports single and an acca is a margin compromise: the £5 single carries lower margin, the £5 acca carries higher. A punter who would have bet on a single anyway will find the £5 acca credit the harder half to use at expected value.

Betway

Betway Limited holds account 039372-R-319367-029. The welcome offer credits £40 in free bet tokens (4 × £10) on settlement of a first bet of at least £10 at minimum odds of 2.0, with a 7-day expiry and debit card deposits only. The debit-card restriction is the qualifier most worth noting: an e-wallet deposit does not qualify.

The structure is the cleanest on the page: £40 of free bet credit in £10 units usable on any market, no acca restriction, no product-type tie-in. The debit-card rule cuts off e-wallet depositors from the headline offer. A punter who deposits by debit card and wants flat free bet credit will find Betway the most flexible headline of the ranking.

Fitzwilliam Sports

SBKI Limited holds account 048760-R-335434-009. Fitzwilliam Sports describes itself as a Dublin bookmaker with capped membership and runs a “High Stakes Welcome” subject to compliance criteria. Membership is not open by default; the offer exists for accounts that have been admitted under the operator’s own criteria.

The capped-membership structure means the page cannot quote the welcome terms in full because the qualifying criteria are not published at large. A punter whose account has been admitted will see the offer in-app; a punter who has not been admitted will not be able to open one. The operator sits in this ranking because it holds a GB licence and serves a niche it has chosen to serve, not because the welcome is open to all.

BetGoodwin

Goodwin Racing Limited holds account 002927-R-327985-008. The welcome offer is “Bet £10 & Get £15 in Free Bets”, split into a £5 sports bet, a £5 acca and a £5 Sub-Cover bet. Sub-Cover is a Goodwin-specific market type: it pays out if a named selection in a horse race finishes in a covered place position. The £5 Sub-Cover credit is usable only on that market.

The Sub-Cover credit is the qualifier. A punter who bets on horse racing will find the £5 Sub-Cover credit useful; a punter whose betting is football-led will find that third of the credit harder to place at expected value. The 50% return on the qualifying stake (£15 for £10) is the highest headline ratio of the welcome offers on this page, before the split structure is accounted for.

LiveScore Bet

LiveScore Betting and Gaming (Gibraltar) Limited holds account 056859-R-332720-005. The payment methods are debit cards (Visa and Mastercard), Apple Pay, PayPal, Pay by Bank (Open Banking) and Revolut Pay. The breadth of the payment list is the qualifier: a punter who prefers Pay by Bank over debit card will not be excluded from any offer by deposit method.

Existing-customer promotions are stated in the promotions tab rather than at sign-up. A punter who values payment flexibility will find LiveScore Bet useful; a punter who wants a single headline existing-customer offer stated up front will find the operator’s communications more event-led.

Kalooki Sportsbook

Kalooki Sportsbook Limited holds account 057730-R-333396-005. The bookmaker advertises instant withdrawals by bank transfer within minutes, Best Odds Guaranteed on UK and Irish horse racing, in-play betting, daily boosts and extra place races, and is a GAMSTOP member. The withdrawal speed is the structural qualifier: most operators process bank transfers inside hours, not minutes, and Kalooki’s stated window is the tightest on this page.

A punter who values withdrawal speed will find Kalooki the strongest match in the ranking; a punter whose priority is the headline offer value will find the brand’s welcome smaller than Betway’s or Coral’s and the existing-customer terms more race-led.

Reading the Small Print

Five conditions recur across the ten operators and are worth scanning before any offer is claimed.

Minimum odds. The shortest qualifying price is stated as a fraction (1/2, evens, 5/1) and converts to a decimal beside it. A bet at shorter odds than the minimum does not count toward a wagering requirement or toward a free-bet trigger.

Expiry. Most free bets in this ranking expire 7 days after credit. An offer credited on a Monday morning and left unused by the following Sunday is gone. The expiry is the single commonest reason a free bet’s expected value is wasted.

Payment method. Coral’s welcome requires a debit card or instant bank transfer; Betway’s welcome is debit-card deposits only; credit cards are banned for gambling entirely in Great Britain (since 14 April 2020), including credit-card-funded e-wallet payments. A punter who deposits by credit card or by an e-wallet funded from a credit card will not qualify.

Product type. The Commission’s promotion rules ban offers that ask the customer to gamble on two or more product types (betting and casino, betting and bingo). A punter who sees a sports-bet offer that credits casino free spins should treat it as not a lawful offer in Great Britain.

Stake return. A free bet’s stake is not returned. A £10 free bet at odds of 3.00 wins £20, not £30. This is the single biggest difference between the headline figure and the expected value.

The Verdict on the Ranking

The ranking is descriptive, not predictive. Each operator holds a Commission licence, runs a stated existing-customer offer structure, and accepts debit cards and bank-based payments. The page’s judgement is on what each operator’s structure costs the punter who claims it.

Betway offers the cleanest flat free-bet structure for a debit-card depositor. Copybet runs the strongest acca-led existing-customer terms through its Acca Booster. Ladbrokes suits a horse-racing punter who wants BOG and exchange infrastructure alongside a sportsbook. Kalooki Sportsbook suits a punter who values withdrawal speed over headline value. Coral, BetUK and BetGoodwin each split their credit into singles and accas, which costs single-bet punters expected value and suits acca-led punters. Bet600’s high qualifying volume makes its welcome the most conditional on the punter’s natural betting pattern. Bet Ahoy’s lower headline value is the trade for a simpler qualifying structure. Fitzwilliam Sports sits outside the open market by its own membership criteria. LiveScore Bet’s payment breadth is its quiet strength.

A punter who would bet on singles should pick a flat free-bet offer and avoid acca splits. A punter who would bet on accas should pick an offer that pays on accas. A punter who would bet on horse racing should pick an operator with Best Odds Guaranteed and accept that BOG is the long-term edge rather than the headline. The 10x wagering cap means no offer in this ranking can ask the punter to bet more than ten times the bonus to clear it; the cost is in the minimum odds, the expiry and the stake return, not in the multiplier.

Frequently Asked Questions

What is the maximum wagering requirement on a betting bonus in Great Britain?

Since 19 January 2026 the Gambling Commission caps wagering requirements on bonuses at 10x. A £10 bonus at 10x needs £100 of qualifying bets before withdrawal; anything above the cap is not a lawful offer in Great Britain, and mixed-product promotions that require gambling on two or more product types, for example betting and casino, are banned outright under the same rule.

What do minimum odds and the wagering requirement mean in a sign-up offer?

Minimum odds are the shortest price at which a qualifying bet or a bet toward a wagering requirement may be placed, stated as a fraction by British bookmakers with the decimal form given beside it. The wagering requirement is the multiplier applied to the bonus that says how much must be staked before winnings can be withdrawn, and only bets at or above the minimum odds count toward it.

Why is the stake of a free bet not paid back with the winnings?

A free bet is a credit whose stake is not returned when the bet wins, which is the structural difference between a free bet and a cash bet. A £10 free bet at odds of 3.00 returns £20 of profit, not £30, and the expected value of the credit is the stake multiplied by (odds minus 1) divided by the odds, applied to a market with the operator’s built-in margin.

Can a bet on sport be tied to a casino bonus under the Commission’s promotion rules?

No. Mixed-product promotions, which are offers that ask the customer to gamble on two or more product types such as betting and casino, betting and bingo or betting and lottery, have been banned under the Commission’s promotion rules since 19 January 2026 alongside the 10x wagering cap.

How can it be checked that a bookmaker holds a Gambling Commission licence?

The Commission’s public register can be searched by business name, trading name, domain or account number and is the whole test of whether a brand holds a licence. Every operator in this ranking appears on the register with a remote general betting standard (real events) licence, and the licence numbers and holders are stated in the table above for verification.

Are betting winnings taxed in Great Britain, and who pays General Betting Duty?

The player pays no tax on betting winnings in Great Britain, although a professional gambler whose betting is treated as a trade should ask HMRC or an adviser. General Betting Duty is the operator’s tax on gross profits from betting, currently 15% with a remote betting rate of 25% from 1 April 2027 for remote bets excluding UK horse racing, self-service betting terminals, pool betting and in-person betting.

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