What existing customer betting offers really cost in Great Britain

Updated October 2026

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Most punters sign up, take the welcome offer, and quietly drift off the bookmaker’s radar. That drift is exactly the moment the marketing department shifts gear. Welcome packages end on day seven; existing customer offers are what fills the rest of the year. Some of them look generous on the screen. Almost none of them stay generous when the small print is worked through. The wagering multiple, the minimum price, the seven-day expiry, the “free bet whose stake is not returned” — these are the lines that decide whether an offer pays the bettor or pays the operator.

This is a working page for that judgement, not a celebration of promotions. Ten licensed bookmakers are reviewed below: what each one does for the customer who has already signed up, what the offer costs in time and in turnover, and where the small print erases the headline. The new Gambling Commission rules in force since 19 January 2026 cap wagering requirements at ten times the bonus and ban mixed-product promotions outright. Those rules frame every figure on this page; every operator on this page is a Commission licence holder, and the gap between a “free” offer and an honest one is the gap this page is built to measure.

*Current as of 30 October 2026, verified against the Gambling Commission’s public register of remote operating licences.*

Bonuses and free bets: the core vocabulary

A betting bonus is not a gift. It is credit the operator lends against a promise that the punter will gamble a multiple of it first, at a price the operator sets, before a withdrawal is allowed. A free bet is a different shape: the punter is given a stake to play with, but if the bet wins, the stake itself is usually not paid back with the winnings. The two look similar on the betting slip. They cost the reader very differently.

The wagering requirement is the number that decides how much play the bonus demands. A £10 bonus at a 5x wagering requirement means £50 of qualifying bets before any withdrawal. The new Commission rules cap that figure at 10x for any bonus, so the worst legal case in Great Britain today is a £10 bonus costing £100 of bets. Free bets without a wagering condition are not covered by the cap, which is one reason operators prefer them.

The minimum odds are the second lever. A bonus that must be cleared at odds of 1/2 (1.50 in decimal) on singles costs the punter far less in expected losses than the same bonus at 5.0 (4/1) on accumulators, because high-priced bets carry more overround in the bookmaker’s favour. A reader who only ever sees “5x wagering” is missing half of what the offer demands.

Expiry, stake return and eligible markets finish the picture. A free bet that expires in seven days on horse racing only, at minimum odds of 1/2 with the stake not returned, is worth less than the same nominal amount on any sport, any price, in thirty days. The arithmetic at the end of this page works through one worked example to put numbers on the difference. Until then, the rest of this section establishes the words.

The four offers every punter meets

Sign-up offer. A one-time package for new customers, almost always a free bet or a matched deposit bonus. Commission rules cap its wagering at 10x; in practice most sign-up offers in the UK carry no wagering requirement at all because the headline perk is itself a free bet. Coral’s £40 in free bets for a £20 qualifying bet, Sky Bet’s £30 in free bets split into three £10 tokens after a £5 first bet, and BoyleSports’ £20 in free bets for a £10 qualifying bet all sit in this category. Each is a one-shot, claimed once per customer, and the customer then becomes an existing one.

Free bet. A token credited to the account, usable on a single bet (sometimes each-way or accumulator). The stake is usually not paid back on a winning free bet; the punter keeps only the profit. QuinnBet credits free bets valid for seven days, on any market at minimum odds of 1/2 (1.50), with maximum odds of 50/1 and straight accumulators allowed but the more elaborate Patent or Yankee structures excluded. Read the offer’s small print for the eligible markets and the price floor.

Price boost. A one-off inflated price on a specific market, available to all customers or to opted-in ones. bet365’s daily Bet Boosts, Unibet’s Uniboosts, and Kwiff’s Supercharge — which can lift a bet from 2/1 to 20/1 at random — all sit here. A boosted price carries no wagering requirement, but the boost itself is the perk; the punter’s stake and the boosted return are paid in cash.

Acca insurance, loyalty boost and refund. A safety net on accumulators (one leg lets you down, the stake is refunded as a free bet), an incremental boost as the accumulator grows (William Hill’s Football Acca Boost pays from 3% on a double up to 200% on twenty legs, capped at £10,000 per online bet), or a refund on a specific event type. BoyleSports runs both Acca Insurance (a free bet up to £20 if one leg of a five-plus acca loses) and Acca Loyalty (a free bet for accas settled at combined odds of 3/1 or more with five legs). Each is a paid-out-per-lot in addition to whatever the bet would have won.

What the small print always says

The small print is not optional reading. Three clauses repeat across almost every offer reviewed here, and a punter who knows them already is ahead of one who learns them the hard way.

Minimum odds. A qualifying bet below the minimum does not count. QuinnBet sets the floor at 1/2, Spreadex at 1/2, BoyleSports Acca Insurance at 1/2, William Hill’s acca boost at 1/5 per leg. A punter who backs a heavy favourite at 1/3 to clear a 1/2 floor has lost that bet’s contribution to turnover, and with it some of the bonus.

Expiry. Most free bets expire in seven days from credit. QuinnBet, BoyleSports, Dabble all use seven days. The Commission rules do not prescribe an expiry; the operator does. The punter who does not use the free bet in that window loses it.

Stake not returned. A winning free bet pays profit only; the stake is consumed. A £10 free bet at odds of 3/1 returns £30 of profit, not £40 of total return. The bonus-turnover section below works through what that single clause means in real money over a clearing cycle.

The top ten: how the shortlist was built

This page ranks ten UK-licensed bookmakers on what each does for the customer who already has an account. The order is editorial, not algorithmic, and the criteria are spelt out so a reader can disagree with the weighting and still see the work.

Three things matter, in this order. First, the offer’s headline value compared with its qualifying bet: a £40 free bet for a £20 qualifying bet is twice the value-per-pound of a £20 free bet for a £10 qualifying bet, and that ratio is the first thing to check. Second, the conditions that govern the perk: wagering multiple, minimum odds, expiry, stake-return rule, eligible markets. Third, the supporting cast of features that decide whether the punter uses the offer at all — Cash Out, Bet Builder, Best Odds Guaranteed on horse racing, live streaming, the daily free bet clubs.

The Gambling Commission’s public register is the starting gate: every brand on this page holds a remote operating licence for Great Britain. The rank ordering below is then built on the criteria above, and only those criteria. Two brands can hold similar licences and offer very different value to the existing customer; the table at the end of this section makes that difference plain.

The selection at a glance

The brands below the top five are not second-class citizens. BetVictor, Kwiff, Sporting Index, QuinnBet, Copybet, 10bet, DAZN Bet, Star Sports, Midnite and Dabble are all licensed and several run the kind of existing-customer perks that suit particular readers. The order above puts the brands with the broadest everyday perk catalogue at the top; readers who know what they want from a bookmaker should look further down the page for the specialist fit.

Existing customer offers at ten UK bookmakers

The reviews below cover the brand, the licence, and the offer — what each one does for the customer who has already signed up. Verdicts are the page’s own, and they are written to close on what actually distinguishes the brand, not on what every bookmaker on the high street already does.

Coral — daily free games and an Odds Booster on hundreds of markets

Coral sits under LC International Limited, which also runs Ladbrokes; the brands share a Commission licence family but present distinct products. The existing customer catalogue is wide rather than deep. A free daily Reward Shaker hands out small perks — free bets, price boosts, casino spins — for opt-in customers, and the Odds Booster applies improved prices to hundreds of markets each day. Football Super Series is a free-to-play predictor game with a £10,000 jackpot, run daily during the football season. Welcome terms restrict deposits to debit card or instant bank transfer; credit cards are not accepted, and that rule has held since the national credit-card ban in 2020. The deposit methods on the cashier page include Apple Pay, Visa, Visa Electron, Mastercard, Revolut Pay, Google Pay, TrueLayer, Earthport and Trustly, which is a long list by UK standards.

Coral’s existing customer offer is the breadth of the catalogue rather than any single headline perk. The Reward Shaker is worth a few pounds a day to an active customer, the Odds Booster improves prices that the customer would have taken, and Football Super Series is a free shot at a four-figure prize. The downsides are the granularity: a customer chasing one specific perk has to read the day’s terms; the cashier page for promotions lists small print in a longer scroll than most. For a high-volume football punter who logs in most days, Coral is a serious existing-customer bookmaker.

Sky Bet — three £10 free bet tokens and a steady free bet club

Sky Bet runs under SBG Sports Limited. The welcome structure — three £10 free bet tokens after a £5 first bet at 1/1 or greater — doubles as the foundation of the existing customer offer: Sky Bet runs free bet clubs that credit the same £10-token shape to active customers on a weekly or promotion-driven basis. The brand’s strong areas are football and racing; the free bet tokens can be used across the sportsbook at minimum odds that match the welcome floor.

The free bet club is the draw. A punter who places a qualifying volume of bets each week collects free bets the following week, with the cycle structured to keep existing customers active. Sky Bet does not run a daily free game on the Coral model, and its acca insurance catalogue is narrower than BoyleSports’. For a punter who likes football and racing and bets through the week, Sky Bet is a sensible second-bookmaker alongside a deeper in-play brand. The licence and the welcome shape also make it a clean first bookmaker for a customer who wants three tokens to deploy at three different times rather than one big free bet.

BetTom — a 50%-back welcome and the same shape repeated

BetTom runs under Bet Tom Limited. The sports welcome is 50% back as a free bet up to £50, with a parallel 50% back as free slot funds up to £50 for casino play. That is the structure research carried; under the new Commission rules, the cross-product shape of that welcome would now be impermissible if BetTom still attached the sports bonus to a casino opt-in, and a customer who sees it advertised should re-check the current terms against the post-19 January 2026 rule before claiming. The existing customer offer builds on the same shape: 50%-back insurance on selected sports for opted-in customers.

The smaller footprint of BetTom means the existing customer catalogue is narrower than the bigger brands. The brand’s strength is its bonus percentage on the welcome rather than the depth of its free-bet club. For a customer who likes a higher-percentage welcome and does not mind a smaller in-play offering, BetTom is a credible option. For a customer who wants daily free games, an Odds Booster catalogue and live streaming of every Premier League game, the bigger houses will serve better.

Unibet — daily Uniboosts, Best Odds Guaranteed and live streaming

Unibet’s UK site runs under Platinum Gaming Limited, Gibraltar, on Commission account 45322, and the brand states it has operated since 1999. The existing customer offer rests on three pillars. First, daily Uniboosts — improved prices on selected markets, published each morning and available across sports. Second, Best Odds Guaranteed on UK and Irish horse racing — the punter gets the bigger of the price taken and the starting price, which is a structural perk rather than a one-off. Third, Bet Builder, Cash Out on thousands of markets, and live streaming through Unibet TV across football, tennis and several other sports.

Unibet is the bookmaker for the existing customer who has already settled into the rhythm of betting. The combination of Best Odds Guaranteed and daily Uniboosts makes the racing and football offerings better than the headline suggests; live streaming means a customer does not have to subscribe to a separate service to watch the games they have bet on. For a punter who watches the racing and football calendar daily and wants a single bookmaker that pays the starting price when it drifts, Unibet is one of the cleanest existing-customer packages in the UK.

bet365 — Bet Builder+, Super Boosts and a deep in-play catalogue

bet365 runs under Hillside (Sports) ENC and is the largest of the brands on this page by existing-customer footprint. Bet Builder+ combines markets from one event into a single bet, available both pre-match and in-play. Super Boosts are daily improved prices on selected markets; Winnings Boosts apply to Bet Builders and selected singles; daily Bet Boosts run on top. The in-play catalogue is the deepest of any bookmaker on this page, with markets on football, tennis, basketball and several US sports updated ball-by-ball.

The existing customer offer at bet365 is the volume of perks rather than any one perk. A punter who bets in-play on football and uses Bet Builder will find a price boost waiting on most days, and the Winnings Boosts apply without an opt-in. For a customer who wants one bookmaker to handle most of their betting, bet365 is the strongest single existing-customer relationship on this page. The downsides are the ones common to every large bookmaker: small print is denser, and the cashier pages run longer than the boutique brands.

William Hill — Football Acca Boost and a capped but generous loyalty perk

William Hill runs under WHG (International) Limited. The Football Acca Boost is a loyalty perk rather than a one-off: it applies to accas of two or more legs with each selection at 1/5 or bigger, pays from 3% on a double up to 200% on twenty or more legs, and caps the boost at £10,000 per online bet. The promotion runs through 30 May 2027, which gives an existing customer a long horizon to use it. Football is the focus; the boost does not extend to the racing catalogue.

For an accumulator punter, William Hill’s boost is the best loyalty perk on this page by raw percentage at the top end. A 200% boost on a winning twenty-leg acca is the difference between a five-figure payout and a four-figure one. The 1/5 per-leg minimum is the catch: every leg has to be at least a short-priced favourite, and that constrains the type of acca that lands in the boost window. For a customer who already backs short-priced football multiples, William Hill is the strongest existing-customer relationship on the high street. For a customer who likes long-priced outsiders, the boost never triggers.

BoyleSports — Acca Insurance and Acca Loyalty, both seven-day free bets

BoyleSports runs under BoyleSports (Gibraltar) Limited. Two existing customer perks define the brand. Acca Insurance refunds the stake as a free bet (up to £20) if one leg of a five-plus accumulator loses; the qualifying bet must be at least £5 at minimum odds of 1/2, must be opted in, and must be placed and settled on the same day. Acca Loyalty pays a free bet when an acca of five or more settled legs wins at combined odds of 3/1 or more, again with a £5 minimum stake and opt-in, and the free bet expires in seven days.

The combination is the draw: insurance for the unlucky accumulator and a loyalty perk for the lucky one. For a punter who builds five-plus-leg football accas as a regular habit, BoyleSports’ existing customer offer is one of the strongest on this page. The £20 cap on the insurance refund is the limit; high-stake acca players will hit that ceiling on a single bad leg. The Irish-facing version of the brand pays the same shape in euros, which is a useful note for cross-border customers.

Spreadex — Acca Boosts and a fixed-odds plus spread betting dual product

Spreadex runs under Spreadex Limited and combines fixed-odds betting with financial spread betting. The fixed-odds arm is regulated by the Gambling Commission; the spread betting arm is regulated by the Financial Conduct Authority, and Spreadex’s own homepage notes that spread betting losses can exceed deposits. Acca Boosts give a cash boost from 5% up to 100% on football accas of three or more legs, with the percentage rising as legs are added. The new customer offer of £60 in free bets for a £10 fixed-odds bet, with a 28-day qualifying window and a 1/2 minimum odds floor, is the foundation.

Spreadex suits a punter who wants both fixed-odds betting and spread betting under one account. For a customer who only wants fixed-odds betting, the Acca Boost is competitive with William Hill’s at the high end and slightly weaker at the low end, and the 28-day qualifying window for the welcome is one of the longest on this page. For a customer who is curious about spread betting, Spreadex is the cleanest single-account entry point on the UK market, with the FCA-side risk disclosure a customer should read carefully before staking.

Smarkets (SBK) — exchange backbone, sportsbook front

Smarkets runs under Smarkets (Malta) Limited on Commission account 39173, and the sportsbook is branded separately. The SBK sportsbook welcome is £60 in free bets for a £20 first deposit and a £20 bet at minimum odds of 3.0 (2/1), credited within 48 hours. Existing customer perks include Cash Out, Bet Builder, live horse racing streams, and selected daily boosts. The exchange backbone underneath means a punter can lay off positions from the sportsbook onto the exchange at the same firm — a feature that no other bookmaker on this page offers.

For a punter who already understands betting exchanges, SBK is the most interesting existing-customer product on this page. For a punter who only bets the sportsbook side, the existing customer offer is narrower than Unibet or bet365 — Smarkets does not run a daily free game, and the acca insurance catalogue is shallower. The minimum odds of 3.0 on the welcome qualifying bet are also higher than most of the UK market, which rules out short-priced favourites.

Kalooki Sportsbook — instant withdrawals and Best Odds Guaranteed on racing

Kalooki Sportsbook runs under Kalooki Sports Book Ltd, company number 12938274, on Commission account 57730. The brand’s existing customer offer is built around the cashier. Instant withdrawals by bank transfer within minutes is the headline, and is rare on the UK market — most bank transfers settle in hours rather than minutes. Best Odds Guaranteed applies to UK and Irish horse racing. In-play betting, daily boosts, and extra place races fill out the racing and football offerings.

For a punter who values fast withdrawals above all else, Kalooki is the cleanest existing-customer relationship on this page. For a punter who bets mostly in-play on football, the daily boosts are present but the in-play catalogue is narrower than bet365’s. The brand is smaller than the bigger houses, and the existing-customer perks lean racing rather than football.

What the bonus actually costs: a worked turnover example

The new Commission rules cap wagering requirements on bonuses at 10x. To see what that means in real bets, take a bonus from the bank: a £40 sign-up free bet package attached to a qualifying bet of £20 at minimum odds of 1/1, expiring in seven days, with no further wagering requirement. The kind of structure Coral and Unibet both advertise.

Two cases need separating. The first is the welcome offer where the headline is a free bet rather than a cash bonus. There is no wagering requirement on the £40 of free bets themselves — the qualifying bet of £20 is the only stake the punter has to put down. The free bets are then used on markets at minimum odds, with the stake not returned on a win. The value of the free bet is, on average, what the formula at the bottom of this page produces for a free-bet-value calculation.

The second case is the cash bonus with a wagering requirement, which is the shape the 10x cap bites on. A £10 cash bonus at the maximum 10x wagering requires £100 of qualifying bets. Spread over a typical minimum stake of £5 per bet, that is twenty bets at minimum odds, which the operator sets and which is usually 1/2 (1.50) on singles. The £100 of turnover, multiplied by the bookmaker’s margin on the markets the punter clears the bonus on, is the expected cost of clearing. A typical football 1X2 margin of 5% on a £100 turnover is £5 of expected loss — meaning the punter ends, on average, with a £10 bonus, £5 of expected losses, and a net gain of £5 before considering the time spent.

That is the headline. The reality is messier. The 10x cap is the maximum, not the floor: many operators attach a much smaller multiplier, and a £10 bonus at 1x is a £10 turnover which is one bet. The Commission rules also ban mixed-product offers — a bonus that demands a turn of the bonus on football and then on casino is now impermissible. The punter who sees such an offer attached to a Commission-licensed brand should re-check the current terms before claiming, and if the offer still attaches a casino wagering, should raise it with the operator or move on. The rules have been in force since 19 January 2026.

State the result as a band, not a single figure: the expected cost of clearing a £10 bonus at 10x wagering on a 5% margin market is £5; on a 7% margin market it is £7; on the tighter 3% margins the bigger houses run on Premier League 1X2 it can fall to £3. The wagering cap gives the punter a known ceiling; the margin decides where inside that ceiling the punter lands.

How to read a small print

Three rules of thumb for the small print of any offer reviewed here or elsewhere.

First, the minimum odds clause is the bet that disqualifies the punter’s stake from the turnover. A £5 accumulator at odds of 1/3 does not count toward the wagering requirement of a bonus whose minimum odds are 1/2. The punter’s stake still went on the bet, but the operator’s bonus counter stays unchanged. This is the most expensive clause in any small print because the punter does not notice.

Second, the expiry clause kills unused free bets. A £10 free bet that expires in seven days is worth nothing to a punter who does not log in during that week. The punter did not lose money on the bet that was not placed; the punter lost the bonus entirely.

Third, the stake-not-returned clause turns a “£30 free bet” into something whose expected value is well below £30. The free-bet-value calculation at the bottom of this page works through what that gap looks like in decimal; a punter who treats a free bet as cash equivalent overstates the perk by roughly the stake fraction of the odds.

A free bet’s honest value

A £10 free bet at odds of 3/1 (4.0 in decimal), stake not returned, on a market with a 95% payout share, returns on average £10 × (4.0 − 1) ÷ 4.0 × 0.95 = £7.13 of expected profit. That is the honest value of the headline £10 free bet; the £10 face value is the figure on the betting slip, not the figure in the pocket.

The same £10 free bet at odds of 5/2 (3.5 in decimal) is worth £10 × (3.5 − 1) ÷ 3.5 × 0.95 = £6.79. The lower the odds, the lower the expected value, because the stake fraction of the return grows as odds shorten. The punter who takes a free bet at odds-on is taking the least valuable version of the perk on offer.

Overview: how the existing-customer market fits together

The UK sports betting market in Great Britain is one of the most licensed markets in the world. Every brand on this page holds a remote operating licence from the Gambling Commission under the Gambling Act 2005; every brand is required to verify a customer’s name, address and date of birth before the first deposit (since 7 May 2019); every brand takes part in GAMSTOP, the national online self-exclusion scheme.

The market’s shape in 2026 is defined by three structural facts. First, the Commission licenses the whole commercial market — there is no state monopoly and no cap on the number of licences — which means the punter has more licensed bookmakers to choose from than in almost any other country. Second, the cross-border licensing rules under the Gambling (Licensing and Advertising) Act 2014 mean a Curaçao-licensed or Malta-licensed brand whose remote facilities are used in Great Britain also needs a Commission licence; a foreign licence alone is not enough. Third, advertising is not licensed by the Commission at all — it runs through the CAP Code (non-broadcast) and the BCAP Code (broadcast), enforced by the ASA, alongside the Commission’s LCCP marketing conditions.

The result is a crowded, well-regulated market where the customer’s existing relationship with a bookmaker is the single biggest determinant of the value the customer extracts. Welcome offers are written for new customers and decline over the first month. Existing customer offers are written for the long tail — and that is the offer book this page measures.

The shape of the catalogue

The existing customer offer catalogue across the ten brands on this page falls into four families. The first is the free bet club: a weekly or monthly free bet credited for a qualifying volume of betting. Sky Bet’s token structure is the model. The second is the odds improvement: daily price boosts, Best Odds Guaranteed on racing, accumulator percentage boosts, Supercharged prices. Unibet, bet365, William Hill and Kwiff each run versions of this. The third is the insurance and refund: a stake returned as a free bet if a specific event happens (one leg of an acca loses, a football-specific matches pick is a loser). BoyleSports, BetTom and several of the bigger houses run versions of this. The fourth is the free game: a daily or weekly free-to-play predictor game with a cash prize. Coral’s Football Super Series is the model.

A punter who uses one bookmaker heavily will extract more value from a free bet club than from a daily boost catalogue, because the qualifying volume is already there. A punter who spreads bets across several bookmakers will extract more value from odds improvements and free games, because the volume threshold of any one club is harder to clear.

What an offer costs the operator

The other side of the offer is what it costs the operator. 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, self-service betting terminal bets, pool betting and in-person betting stay at 15%. Spread betting has its own rates: 3% on financial spread bets and 10% on others. The Commission also levies a separate charge on licensed operators, which is not a tax.

Whether operators pass duty on through odds is not established. The punter pays no tax on betting winnings in Great Britain. The £40 free bet headline at Coral, the £30 free bet headline at Sky Bet, the £60 free bet headline at Spreadex and SBK are paid out of the operator’s margin, which sits inside every price on the betting slip.

The Commission announced, on 7 July 2026, a staged plan for financial risk assessments — the affordability checks of the press — with no start date. Until that plan lands, the only affordability-style check in force is the financial vulnerability check under LCCP condition 3.4.4 (in force since 30 August 2024, applied to remote betting customers whose deposits minus withdrawals exceed £150 in a rolling 30 days since 28 February 2025), which is a public-record check and not an income check. The punter who crosses the £150 threshold in a month can expect a public-record check, not a payslip upload.

UK betting law and the Gambling Commission

The Gambling Commission regulates commercial gambling in Great Britain under the Gambling Act 2005. Northern Ireland is outside the Act, with its own older law, so the rule is to write “Great Britain licence” or “GB-licensed” and not to imply the Commission regulates Northern Ireland. Since the Gambling (Licensing and Advertising) Act 2014, a remote operator whose facilities are used in Great Britain needs a Commission licence wherever it is based; sections 33 and 36 of the 2005 Act as amended set out the offence of providing gambling facilities without the licence the Act requires.

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. Quote no count of licensed operators without an access date, because the register changes weekly. Licensed operators use .com as well as .co.uk, so the domain proves nothing — a .com is no less licensed than a .co.uk, and a .com with no licence on the register is unlicensed.

What may and may not be bet on

The Commission does not maintain a statutory list of permitted bets or markets. An operator holds a licence for a category — remote general betting standard (real events), remote general betting standard (virtual events), remote general betting limited, remote pool betting, or remote betting intermediary for exchanges — and offers markets under its own rules and the Licence Conditions and Codes of Practice. In-play betting is offered by GB bookmakers; the controls are operator-level licence conditions and customer-protection duties, not a statutory rule. Esports are treated like any other event; virtual events sit in a separate licence category. Bets on politics, TV shows and novelty markets are offered by GB bookmakers, and no statutory prohibition was found.

Spread betting that is not a financial product is inside General Betting Duty. Pool betting on horse and dog racing is a separate licence and duty. There is no statutory cap on stakes in sports betting: operators set their own maximum stakes and may restrict customers. The punter who sees a stake limit on a specific market is seeing the operator’s house rule, not a Commission rule.

Promotion rules in force since 19 January 2026

Two rules have reshaped the bonus market since 19 January 2026. First, wagering requirements on bonuses are capped at 10x — meaning a £10 bonus at 50x wagering (which would have meant £500 of qualifying bets) is now impermissible; under the cap no more than £100 of qualifying bets can be required. Second, mixed-product promotions are banned: an offer that requires the customer to gamble on two or more product types (for example a sports betting bonus that requires casino play as part of clearing, or a casino bonus that requires sports play) is impermissible. The phrase “bet on football to get free spins” is the canonical example of the rule.

Whether the 10x cap applies to free bets with no wagering condition is not established. Free bets without a wagering condition are not bonuses in the strict sense, and several operators still attach free-bet structures to welcome offers where the free bet is the perk rather than the clearing target. The punter who sees a “free bet” with no wagering requirement is most likely seeing a free-bet structure outside the cap, but should read the offer’s small print carefully — a free bet that requires a £50 turnover on the qualifying bet is a different shape from a free bet that requires no turnover at all.

There is no cap on the money value of a bonus, and the Commission rules do not prescribe a maximum free bet amount. The £40 free bet at Coral, the £30 free bet at Sky Bet, the £60 free bet at Spreadex and SBK are all legal under the cap.

Offshore brands and the point of consumption

A brand without a GB licence but offering facilities to customers in Great Britain is committing an offence under section 33 of the Gambling Act 2005. On summary conviction the penalty is up to 51 weeks’ imprisonment, a fine up to level 5, or both; in Scotland the custodial maximum is six months. The offence is aimed at the operator, not at the customer who bets on the unlicensed site — no offence aimed at the customer was found.

The honest framing for the punter is the loss of protection. An unlicensed site does not offer GAMSTOP coverage, does not accept Commission complaints, is not bound by an approved dispute-resolution body, gives the punter no British consumer redress if funds are withheld, is not bound by the 10x bonus cap, and is not bound by the £150 financial vulnerability check. The licensed equivalent — a GB-licensed site with verification before the first deposit — is a different shape of product. Neither is “the safe choice” by default, but the licensed brand offers a regulatory floor the unlicensed one does not.

Enforcement is disruption rather than blocking: cease-and-desist notices, search-engine referrals, work with registrars, hosts and payment providers. The Commission has been given, or is about to receive, court-order DNS blocking powers — never write that ISP blocking is in operation. The punter who bets on an unlicensed site is not committing a known offence, but is gambling on a brand that does not sit inside any British regulatory framework.

Safer gambling and the support network

Gambling harm is real and is not solved by safer-gambling messaging on a bookmaker’s homepage. The serious support network in Great Britain is built around GamCare, the National Gambling Helpline, GambleAware, the NHS gambling clinics, and Gamblers Anonymous. The punter who reads no further than this page should know that those four names exist; the punter who feels the need should reach one of them rather than escalate further betting.

GAMSTOP and self-exclusion

GAMSTOP is the national multi-operator online self-exclusion scheme and a mandatory licence condition for online operators since 31 March 2020. A customer can self-exclude for six months, one year, five years, or five years with auto-renewal. 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 service.

Every brand on this page is a GAMSTOP member, which is the licensed baseline. A self-excluded customer cannot deposit or place a bet at any of them. A customer who wants to self-exclude from a single brand can do so directly with the brand; a customer who wants to self-exclude from all UK-licensed online operators uses GAMSTOP.

Deposit limits and stake limits

Operators must offer a gross deposit limit on a fixed time frame under the Remote Technical Standards (RTS 12). The first changes applied on 31 October 2025; a second phase is scheduled for 30 September 2026, and whether it has gone live is not established. There is no state-set deposit or loss ceiling for betting in Great Britain: limits are the customer’s choice, and the operator’s job is to surface the limit-setting tool, not to impose it.

DAZN Bet, among the brands on this page, lists deposit limits, loss limits and wagering limits as its safer-gambling tools. Other brands offer the same tools under different headings. The punter who wants to set a deposit limit should set one before the first deposit, when the limit can be set to take effect immediately; raising a deposit limit usually takes 24 hours or longer, by design.

The wider safety net

The financial vulnerability check under LCCP condition 3.4.4 is a public-record check — for example, bankruptcy or county court judgments — and is not an income check. It applies to licensed remote betting customers whose deposits minus withdrawals exceed £150 in a rolling 30 days, in force since 28 February 2025. A customer who crosses that threshold may be asked for permission to run a public-record check; the operator cannot run it without consent. The financial risk assessments announced by the Commission on 7 July 2026 are a staged plan with no start date, and the punter who hears that “affordability checks are in force” should know that they are not.

The credit-card ban for gambling in Great Britain has been in force since 14 April 2020 under LCCP condition 6.1.2. It covers credit-card-funded payments through an e-wallet, and means a debit card or bank-based payment is the only realistic route for a UK-licensed betting account. Apple Pay, Google Pay and the like are not credit cards and are not covered by the ban; the underlying funding source is what matters.

The shape of an offer: how to read a welcome package

A welcome package has five parts, and a punter who reads all five before claiming avoids most of the avoidable losses on this page.

Qualifying bet. The stake the punter must put down to unlock the offer. Coral’s £20, Sky Bet’s £5, BoyleSports’ £10, Spreadex’s £10, SBK’s £20. The lower the qualifying bet, the less the punter has at risk to access the headline perk.

Minimum odds. The price floor on the qualifying bet. Most UK welcome offers sit at 1/2 (1.50) or 1/1 (2.0); SBK sits at 3.0 (2/1) which is the strictest on this page. A punter who backs a heavy favourite below the floor loses the qualifying stake and does not unlock the offer.

Free bet issue. How soon the free bet is credited. Coral and BoyleSports issue within seven days; SBK within 48 hours. The faster the issue, the sooner the free bet expiry clock starts ticking.

Free bet expiry. How long the free bet is valid. QuinnBet, BoyleSports, Dabble all run seven days from credit. The Commission rules do not prescribe an expiry; the operator does. A punter who does not log in within seven days of credit loses the free bet.

Stake returned. Whether the stake of a winning free bet is paid back with the winnings. Most UK free bets do not return the stake. A £10 free bet at 3/1 returns £30 of profit, not £40. The punter who treats the headline as cash equivalent overstates the perk.

When to skip an offer

Three situations where the offer is best left alone. First, a bonus whose wagering requirement times the minimum stake exceeds the punter’s usual betting volume — a £100 turnover on a £5 stake means twenty bets at minimum odds, which is more than the punter would have placed anyway. Second, a free bet whose minimum odds rule and eligible market rule sharply reduce the markets the punter would have backed anyway. Third, any offer that requires the punter to verify identity documents beyond the standard name-address-DOB check; the standard check is the rule, the additional document upload is a red flag.

When to take it

Three situations where the offer is worth claiming. First, a free bet whose qualifying bet is below the punter’s usual stake at minimum odds the punter would have taken anyway. Second, a Best Odds Guaranteed perk on racing — that is a structural perk, not a one-off. Third, a daily free-to-play game where the punter can enter without staking anything on the betting side.

The customer journey: from sign-up to existing customer

The shape of an existing-customer relationship is a sequence, not a snapshot. Three moments matter.

Day one: the welcome claim. Place the qualifying bet at minimum odds, claim the free bet or bonus, set a deposit limit at the same time, opt in to GAMSTOP if there is a self-exclusion history, complete the name-address-DOB verification. The punter who sets a deposit limit at this moment cannot have that limit raised instantly, by design.

Week one: the free bet deployment. Use the free bet at minimum odds on a market the punter would have backed anyway; remember the stake is not returned on a win. A £10 free bet at 3/1 returns £30 of profit on a win, not £40.

Month one onward: the existing customer offer catalogue. Free bet clubs, daily boosts, acca insurance, free games. The punter who logs in three times a week extracts more value than the punter who logs in once a month, because the daily offers depend on daily activity. The bookmakers that pay Best Odds Guaranteed on racing pay it every race, not just on promotional days.

A note on what is not on this page

This page does not name a “best bookmaker” or rank the ten brands by single quality, because ranking on a single criterion — best odds, biggest free bet, deepest in-play catalogue — produces a different winner each time, and the punter who picks on a single criterion overpays on the others. The brands are reviewed in terms of what they offer the existing customer; the punter who wants the broadest catalogue picks differently from the punter who wants the deepest acca insurance, and both picks are on this page.

This page does not print a working bonus code or promo code. The Commission rules and the LCCP marketing conditions allow codes but the editorial choice is to describe the offers rather than hand the reader a code that may be expired, regional or one-shot. The reader who wants a code can find one on the operator’s own promotion page or in the welcome email after sign-up.

This page does not predict outcomes. No bookmaker’s catalogue or Commission rule changes the uncertainty of a sporting event, and the punter who treats an offer as a route to a winning bet misunderstands both the offer and the bet. The offer book on this page is what a gambler does once they have already decided to bet, not a route to betting more often.

The calculation behind the page

The worked turnover example earlier in this page rests on a small number of formulas, all of which are standard betting arithmetic and not page-specific.

Payout. A winning single bet returns stake multiplied by the decimal odds, and the net profit is stake multiplied by (odds minus one). A combination bet’s odds are the multiplication of the legs’ decimal odds, with the stake returned only if every leg wins.

Margin. The bookmaker’s margin is the share of every unit bet on a market that the bookmaker keeps on average. For a two-outcome market at decimal odds o₁ and o₂, the payout share is 1 ÷ (1/o₁ + 1/o₂) and the margin is 1 minus that figure. A football 1X2 with all three outcomes priced has a payout share calculated across all three.

Free bet value. A free bet whose stake is not paid back has an expected value of the free-bet amount multiplied by (odds minus one) divided by the odds, multiplied by the payout share of the market. A £10 free bet at odds of 4.0 on a 95% payout share market is worth about £7.13 on average.

Bonus turnover. The required turnover is the bonus base multiplied by the wagering factor. Where the base is the bonus only, a £10 bonus at 5x is £50 of turnover; where the base is the bonus plus deposit, a £10 bonus on a £10 deposit at 5x is £100. The number of bets is the turnover divided by the stake per bet, and only bets at or above the minimum odds count.

Expected cost. The expected cost of clearing a bonus is the required turnover multiplied by the margin of the market the bonus is cleared on. A £100 turnover on a 5% margin market costs £5 on average. The Commission’s 10x cap puts a ceiling on the turnover; the margin decides where inside that ceiling the cost lands.

State these as statistical estimates, not guarantees. An estimate is an average over many bets under the stated assumptions; no single bettor’s outcome is guaranteed by the calculation.

The offer book at a glance

This table does not tell the punter which brand to choose. It tells the punter where to look. The brand with the broadest catalogue is bet365, the brand with the deepest acca boost is William Hill, the brand with the fastest withdrawals is Kalooki, the brand with the broadest racing BOG is Unibet, the brand with the cleanest acca insurance is BoyleSports, the brand with the broadest free-to-play game is Coral. Pick by what the punter already bets on; the offer book is built around the punter, not the other way round.

Frequently asked questions about existing customer betting offers

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

Since 19 January 2026 the Gambling Commission has capped wagering requirements on bonuses at ten times the bonus amount. A £10 bonus at the cap requires £100 of qualifying bets; a £10 bonus at any higher multiple is no longer permissible at a Commission-licensed brand. The cap applies to bonuses with a wagering condition; free bets without a wagering condition are not covered by the cap and remain subject to the operator’s own terms on expiry, minimum odds and stake return.

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

Minimum odds are the price floor below which a qualifying bet does not count toward the wagering requirement. A bonus whose floor is 1/2 does not count bets at 1/3 or shorter evens, and a £5 bet on a 1/4 favourite does not move the bonus counter. The wagering requirement is the total amount of qualifying bets the punter must place before any withdrawal is allowed, expressed as a multiple of the bonus. A £10 bonus at 5x is £50 of qualifying bets at or above the minimum odds.

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

Operators pay free bets as profit only because the stake itself is the perk. A £10 free bet at odds of 3/1 returns £30 of profit, not £40. The expected value of the free bet is the stake multiplied by (odds minus one) divided by the odds multiplied by the market’s payout share — a £10 free bet at 4.0 on a 95% payout share market is worth about £7.13 on average, well below the £10 face value. The clause protects the operator’s margin; the punter’s job is to use the free bet at a price that makes the expected value worth claiming.

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

No. Since 19 January 2026 mixed-product promotions are banned at Commission-licensed operators. An offer that requires the customer to gamble on two or more product types — for example, betting on football to unlock free spins on slots, or a casino bonus that requires sports betting as part of clearing — is impermissible. The punter who sees such an offer attached to a licensed brand should re-check the current terms before claiming; if the cross-product structure still attaches, raise it with the operator’s customer service or pick a different brand.

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

The Commission’s public register is the whole test. Search by business name, trading name, domain or account number; the register lists the licence categories the operator is permitted to offer, the trading names the licence covers, and any active regulatory action. Quote no count of licensed operators without an access date, because the register changes weekly. A licensed operator may use .com or .co.uk, so the domain proves nothing; an unlicensed brand is not on the register. Every brand reviewed on this page is on the register as of the date stamp at the top.

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

Betting winnings are not taxed on the punter in Great Britain; a winning bet pays out in full to the customer and the customer owes no tax on the profit. General Betting Duty is the operator’s tax on gross profits from betting, currently 15%, rising to a new remote betting rate of 25% from 1 April 2027 while remote bets on UK horse racing, self-service betting terminal bets, pool betting and in-person betting stay at 15%. Spread betting has its own rates: 3% on financial spread bets and 10% on others. The punter never pays duty directly; whether the operator passes duty on through odds is not established.

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