Existing customer offers from UK bookmakers: what they're actually worth in 2026

Updated October 2026

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This page is current as of 27 October 2026 and was checked against the Gambling Commission’s public register, the LCCP social responsibility code and the Commission promotion rules in force since 19 January 2026.

The phrase “existing customer offer” is doing two different jobs on the same page. To a new account it means the welcome bundle — Coral’s £40 free bets for a £20 qualifying bet, Sky Bet’s three £10 free bet tokens for a 5p first wager, Unibet’s near-identical £40 for £20. To a customer who opened the account last year, last month or last week it means the running stream of price boosts, acca insurances, free-to-play games, acca loyalty refunds and weekly promos that an operator ships out to keep them betting. The two things look identical in marketing copy and almost nothing alike in cash. Welcome bundles are paid out once, on a single qualifying bet, at a fixed headline figure. The running stream is paid out dozens of times a year, in dribs and drabs, often with a stake that is not returned, often with a wagering multiple that the bookmaker paid the regulator to make the most it can. The £40 Coral headline is roughly £40 in expected value if the qualifying bet lands. A weekly free £5 acca insurance refund, paid seven times a month, is £60 over a year — more than the welcome — and it is paid in free bets whose stake you never see again.

This page is written for the second job. It is a cost analysis of what existing customer offers really pay out, which bookmakers deliver the most of it under the rules that now govern them, and what the £150 financial vulnerability check and the 10x wagering cap mean for the person who claims them.

Safer gambling and the rules an offer sits inside

Every bookmaker covered here is licensed by the Gambling Commission and listed on the public register. Every one of them is a member of GAMSTOP, which means a customer who has self-excluded through the national scheme cannot deposit, claim an offer or place a bet at any of them. The minimum 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. This is a hard line, not a soft one: the offer is not a free pass around it.

The framework behind the offer matters because the offer only exists inside it. Before a customer can deposit at any of these brands they go through identity verification — name, address and date of birth — which has been mandatory at the point of first deposit since 7 May 2019. The verification covers free bets and bonus credits as well as cash deposits: a free bet cannot be claimed anonymously. Once a customer has deposited more than they have withdrawn by a net £150 over a rolling 30 days, a financial vulnerability check is run: a public-record check, not a credit-reference or income check, looking at county court judgments and bankruptcy entries. The check is in force now. The further financial risk assessment — what the press calls affordability checks — is announced in a staged plan, with no start date, and is not yet live.

Operators also run their own safer-gambling tooling, separate from the Commission’s. DAZN Bet, for instance, exposes deposit limits, loss limits and wagering limits directly to the customer from the account page. Other brands carry the same suite under different names. The point is the same: a customer who wants a ceiling can set one, and an operator that takes a deposit without offering that control is breaking the LCCP.

The Commission levy and the General Betting Duty are the operator’s costs, not the customer’s. The customer pays no tax on betting winnings in Great Britain; the operator pays 15% on gross profits from general betting, with a staged increase to 25% on remote betting from 1 April 2027. Whether an operator narrows its odds to absorb the duty is not established, and the honest framing is that the duty sits inside the margin, not on top of it.

The promotion rules in force since 19 January 2026 are the single most important piece of context for the rest of this page. Wagering requirements on bonuses are capped at 10x: a £10 bonus at 50x, the kind of multiple the regulator found in roughly a quarter of all bonus offers in its 2023 review, is now illegal at any bookmaker with a GB licence. A £10 bonus at 10x requires £100 of qualifying bets before the bonus cash can be withdrawn; a £10 bonus at 5x requires £50; a £10 free bet with no wagering condition requires nothing further. The cap is on the multiple, not on the money value of the bonus, and there is no published ceiling on how much a free bet can be worth in cash terms. A second rule, applied at the same time, bans mixed-product promotions: an offer that asks the customer to bet on football to get free casino spins, or to deposit for a sports bet to claim bingo credits, is no longer permitted. The reason is that the regulator found these offers to be the route through which a sportsbook customer was steered into a higher-margin product — slots, casino — with its own bonus mechanics. The cap is, in effect, the bookmaker being told how much it can ask the customer to bet before the bonus is theirs. Whether the cap applies to a free bet with no wagering condition — the commonest shape of welcome offer in Britain — is not established in the public guidance, and the default reading is that it does not, because there is no wagering condition to multiply.

The 10x cap, the GAMSTOP membership and the verification before first deposit together form the floor under everything else on this page. The welcome offer exists because the customer has passed all three; the running offers exist because the customer keeps passing them.

Bonuses and free bets: what an offer really costs

An offer’s headline number is not its value. The value is what a customer of average skill can expect to walk away with after the offer’s terms have been applied, and the terms divide into three buckets: a wagering multiple, a minimum odds rule, and a deadline.

A wagering multiple is the number of times the bonus (or, in some cases, the bonus plus the deposit) must be bet through before the bonus is paid out as withdrawable cash. Under the 10x cap the most a customer can be asked to turn over is ten times the bonus figure. A £10 bonus at 10x is £100 of qualifying bets; a £50 bonus at 10x is £500. The bets must land on markets at or above a minimum odds rule, set by the operator and usually expressed as evens (2.0) or 1/2 (1.5). QuinnBet, for instance, sets its free bet minimum at 1/2 with a maximum odds of 50/1, and disallows Trixies, Patents and Yankees on free bet stakes. The qualifying bets need not be winners — most operators only require them to be settled, which is why a high-margin market at minimum odds is the cheapest way to grind through a wagering requirement. The arithmetic is in the calculation below.

A minimum odds rule on the qualifying bet is a different rule from a minimum odds rule on the free bet itself. The first decides whether a customer’s first bet counts towards the offer at all; the second decides where the free bet, once credited, may be staked. A £40 free bet on a 1/2 minimum-odds market, on a bookmaker paying roughly 90% on that market, has an expected value of about £18 before the free bet is even placed. A £40 free bet on a 1/1 (2.0) minimum-odds market, on a bookmaker paying roughly 92% on that market, has an expected value of about £22. The same headline pays out 22% more on the higher minimum. The market the customer is steered onto is part of the offer’s price.

A deadline decides how long the customer has to use the free bet. Coral issues free bets within seven days of qualifying and they expire seven days after issue. QuinnBet’s free bets last seven days from credit. Sky Bet’s tokens are 30 days. A weekly free bet that the customer lets expire is the bookmaker keeping the headline figure, not the customer losing it. Across a year, an expired free bet here and there is the difference between an offer that pays out and an offer that pays out at half its face value.

The single sharpest point on a free bet — and the one most often misread in marketing — is that the stake is not paid back. A £10 free bet on a winning selection at 5/1 returns £50 in profit, not £60. The expected value of a free bet is therefore the free bet amount multiplied by (odds minus one) divided by odds, scaled by the market payout share. On a market paying 90% at evens (2.0), a £10 free bet is worth roughly £4.50; at 3/1 (4.0) on a market paying 85%, it is worth roughly £6.40. The same £10 stake as a cash bet at the same odds would be worth £9; the free bet gives the customer the winnings, not the wager.

This is why the welcome offers across the ten featured brands cluster around the same shape: a small qualifying bet (a Coral £20, a BoyleSports £10, a Sky Bet 5p, a Sporting Index £10), a fixed free bet return, a minimum odds rule on the qualifying bet, and a deadline. The free bet return is a percentage of the qualifying stake, not a fixed gift: a £20 qualifying bet on a market at 1/1 returns £40 in free bets at Coral and at Unibet (2.0x the stake), £20 at BoyleSports (2.0x), £30 at Sky Bet (the bet is 5p and the free bet is 600x the qualifying stake, an entirely different shape that exists only because Sky Bet wants to be the bet on which the customer opens an account, not the bet the customer sizes up). The headline is the bet the bookmaker wants you to place, not the bet the customer is most likely to win.

For the running stream of offers — the ones this page is actually about — the same arithmetic applies, but at smaller scale and with a much wider variety of terms. William Hill’s Football Acca Boost pays 3% on a double and up to 200% on twenty or more legs, with a maximum boost of £10,000 per online bet, and runs until 30 May 2027. Spreadex’s Acca Boosts give a cash boost of 5% to 100% on football accumulators of three or more selections. Copybet’s Acca Booster pays up to 100% cash on accas of at least three legs, alongside a 15% Daily Profit Boost. BoyleSports’ Acca Insurance refunds a maximum of £20 as a free bet on a settled acca of at least five legs at combined odds of 3/1 or more, and its Acca Loyalty pays a free bet on the same structure as a recurring reward. Coral’s free daily Reward Shaker is a randomised free-bet wheel, with a £10,000 jackpot on the free-to-play Football Super Series running alongside it. Kwiff’s Supercharge feature is the same mechanism in a different form: a random boost on the odds of a placed bet, capable of taking 2/1 to 20/1 on a single selection.

The value of any of these is the same calculation as the welcome: the headline figure, multiplied by the expected payout of the market it lands on, multiplied by the probability that the qualifying conditions are met in time. A 5% acca boost on a £10 treble at combined odds of 6/1 is a 30p return; on a £100 treble at the same odds it is £3. The boost’s headline is a percentage; its value is a number of pence.

How the cost is worked out: a worked example

The bookmaker is asked to apply the wagering cap and the customer is asked to apply arithmetic. The calculation below is an example of what it costs to clear the Coral welcome offer under the rules in force at the time of writing.

The offer’s headline is £40 in free bets for a £20 qualifying sports bet at minimum odds of 2.0 (1/1), with the free bets issued within seven days and expiring seven days after issue. The wagering on the bonus itself is zero — Coral’s welcome is a free bet, not a bonus with a turnover — so the 10x cap does not bind the welcome. The cap does bind a hypothetical £40 cash bonus at Coral, which would require £400 of qualifying bets at minimum odds of 2.0 before the £40 became withdrawable. The two offers are very different things.

Take the £40 free bet at Coral. The minimum odds on the free bet itself are set by Coral and not stated in the welcome terms reviewed here; assume the customer places the free bet at decimal odds of 3.0 on a market paying 90% (margin 10%), which is a typical bookmaker football market for a one-selection bet at that price. The expected value of a free bet whose stake is not returned is stake × (odds − 1) ÷ odds × payout share. On £40 at 3.0 at 90%, that is £40 × 2/3 × 0.90 = £24. The £40 headline is therefore a £24 expected payout. A £40 cash bonus with a 10x turnover at 2.0 minimum odds on the same market requires £400 of qualifying bets; at a 90% payout share on the same market the expected loss on those qualifying bets is £400 × 10% = £40, and the bonus is worth £40 — the customer is exactly breaking even before the time cost of placing the bets. A £40 cash bonus with a 5x turnover at 2.0 minimum odds requires £200 of qualifying bets; the expected loss on those is £20 and the bonus is worth £40, a net £20 of expected value to the customer. A £40 cash bonus at 10x and 1/2 minimum odds (1.5) on a market paying 88% requires £400 of qualifying bets at a lower margin, with an expected loss of £48, and the bonus is worth £40 — the customer is £8 worse off than taking the free bet.

The cost of clearing a bonus, then, is not the wagering multiple alone. It is the wagering multiple times the margin of the markets the customer is forced onto by the minimum odds rule. The 10x cap is a ceiling on one half of the cost; the minimum odds rule is the other half, and the regulator has not capped it. A bookmaker that sets a 2.0 minimum odds is asking the customer to bet at a margin of 8% to 12% on most sports; at 1.5 minimum odds, the margin is 5% to 8%. The same bonus, at the same multiple, costs less to clear at 1.5 than at 2.0 — which is why the minimum odds rule is the more important number to read.

The Coral welcome offer is a free bet with no turnover: cost to clear is zero, expected value is roughly £24 of the £40 headline, and the customer’s expected loss on the qualifying £20 bet at 2.0 is £2 to £3 depending on the market. The customer pockets a positive expected value, but only because the bookmaker is paying for the acquisition. A cash bonus at Coral, if it existed, would be a different proposition: £40 of bonus at 10x at 2.0 is roughly break-even, £40 at 5x at 1.5 is a clear win for the customer, £40 at 10x at 1.5 is the best deal the cap allows. The cap and the minimum odds rule are the levers. The bonus amount is the third.

Stated as a band, the same example runs from a net expected gain of about £2 for the customer on a £40 bonus at 10x and 2.0 to about £20 on a £40 bonus at 5x and 1.5. The headline figure is a constant; the band is a function of the multiplier and the minimum odds, with the 10x cap as the ceiling on the multiplier and the regulator silent on the minimum odds.

The top 10 bookmakers for existing customer value in Great Britain

The ten brands below are the featured set on this page, ordered by the strength of their running offer stream and the conditions on the headline offers that meet the eye. They are not the only licensed bookmakers in Great Britain; the Commission’s public register lists hundreds of remote licence holders. They are the set the rest of this page is built around.

The table is the comparison block for the page. The columns are the matters research backs for most rows: the brand, who actually holds the licence (which decides who is responsible for the customer funds), the Commission’s account number that a reader can check on the public register, and the offer signature that the running stream sits around. Several brand pairs above share a licence — Ladbrokes and Coral both sit under LC International Limited, Paddy Power and Betfair both under PPB Games Limited — and that matters because the parent company is the legal counterparty, not the trading brand. A dispute with Coral is a dispute with LC International. A dispute with Paddy Power is a dispute with PPB Games. The two are not the same company and the two disputes are not the same dispute.

The rest of this section is a closer look at each brand in turn, with the running offer as the headline, the welcome offer for context, and a verdict on who the offer is built for.

bet365 — the most complete feature set, the most crowded odds

bet365 is the reference point against which every other GB bookmaker is measured, and the running offer stream is the deepest of any brand reviewed here. Bet Builder+ combines markets from one event into a single bet, available pre-match and in-play, which is a different product from a standard bet builder. Super Boosts are one-off price enhancements on selected markets. Winnings Boosts apply to Bet Builders and selected singles, and the daily Bet Boosts are a stream of price enhancements across football, horse racing and the major US sports. None of these carry a headline figure in the same way a free bet does, because the value is a percentage uplift on the odds the customer is already getting. A 10% boost on a 5/1 selection is 50p on a £1 stake; the value compounds across a year of betting, and the customer who bets frequently is the one who captures it.

The welcome offer is not the centre of the bet365 proposition. The site has, at various points in recent years, offered acca insurance and a bet credits welcome in different shapes; the more durable value is the running stream and the live in-play product, which is the deepest of any brand on this page. The minimum stake on a Bet Boost is set by bet365 and varies by market; the maximum stake is the customer’s account limit. There is no published wagering requirement on the boosts: the winnings are paid as cash.

For the customer who bets weekly across multiple sports, the running stream is the strongest on the market. For the customer who bets once a month on the Grand National, the running stream is wasted; the welcome at a smaller brand is better. The verdict is that bet365 is the brand for the active punter and a poor fit for the weekend-only account.

William Hill — the acca boost that pays real money

William Hill’s Football Acca Boost is the most generous acca boost in the featured set by headline and the most clearly written in terms. The boost pays 3% on a double, scaling to 200% on twenty or more legs, with each leg at minimum odds of 1/5 (1.20) and a maximum boost of £10,000 per online bet. The promotion runs until 30 May 2027. The boost is paid in cash, not as a free bet, which is the critical distinction: a 50% boost on a winning £20 acca is £10 paid into the account, withdrawable. A 50% boost paid as a free bet is the same headline paying out less.

The combination of a low minimum odds rule (1/5) and a cash payout is what makes the William Hill boost the strongest single running offer on this page. The customer can build a long acca of short-priced favourites — the kind of accumulator that lands roughly once in three — and the boost pays a meaningful return on the win. The cap of £10,000 per bet is not a constraint for the customer at this scale of stake; the leg minimum is a constraint, because a 1/5 acca of twenty legs is twenty legs the customer has to find and price.

The welcome offer is a free bet bundle of the standard shape; the running offer is the proposition. William Hill stands as a clear choice for accumulator specialists.

Coral — the free daily game and the in-house refund

Coral’s running offer is built around a free daily Reward Shaker, an Odds Booster that applies to hundreds of markets each day, and the free-to-play Football Super Series game with its £10,000 jackpot. The Super Series is a free entry, no stake, paid out as cash to the winning customer: it is the only offer in the featured set that costs the customer nothing to enter and pays cash on a win. The Reward Shaker is a randomised free-bet wheel, paid in free bets whose stake is not returned. The Odds Booster is a price enhancement on selected markets, paid as cash winnings on a winning bet.

The welcome offer is the standard £40 in free bets for a £20 qualifying bet at minimum odds of 2.0, with the free bets expiring within seven days of issue. The payment methods on the Coral site include debit cards, instant bank transfer, Apple Pay, Google Pay and a range of e-wallets; credit cards are not permitted for gambling anywhere in Great Britain. The Coral licence is held by LC International Limited, the same company that holds the Ladbrokes licence; the two brands are run as separate products by the same parent.

The verdict is that Coral is the right home for the customer who engages with the daily game; the Reward Shaker and the Super Series are the offers that pay out most often, and the customer who ignores them is paying full price for an offer stream the brand is subsidising. The drawback is that the free bets from the Shaker expire quickly, and the customer who lets them expire forfeits the offer.

Sky Bet — the request-a-bet brand

Sky Bet’s running offer is built around frequent free bet clubs, request-a-bet functionality that lets the customer price up a market the brand does not list, and a steady stream of acca boosts. The request-a-bet feature is the differentiator: a customer can name a market (“player to score and team to win” on a fixture the site does not have priced as a single bet), and Sky Bet will price it, often with a promotional uplift. The price the brand returns is a margin over the true odds, and the customer who requests many bets pays that margin on each.

The welcome offer is the most distinctive in the featured set: three £10 free bet tokens after a deposit of at least £5 and a first single or each-way bet of at least 5p at odds of 1/1 or greater. The qualifying stake is 5p — a price designed to make sure the customer places the bet rather than to make money from the qualifying — and the free bets are 30 days from credit, the longest window in the featured set. Sky Bet is operated by SBG Sports Limited under Commission account 67370, the same parent as Sky Casino and Sky Bingo.

The verdict is that Sky Bet is the right home for the customer who wants a long window on the free bet and a brand that will price the bet the customer has in mind. The 5p qualifying bet is a marketing choice, not a value choice, and the running stream is the part of the proposition that pays out.

BetVictor — the price boost brand

BetVictor’s running offer is a stream of price boosts, acca offers and free bets on selected events, all of which are surfaced in the app and governed by the brand’s customer terms. The brand is quieter than bet365 or Sky Bet in the press; the offer stream is the proposition, and the customer who engages with it is the one who captures the value.

The welcome offer is in the standard shape: a free bet bundle, governed by the customer terms. The payment methods are the standard set. BetVictor is operated by BetVictor Limited under Commission account 39576.

The offer stream is the primary value proposition. BetVictor is for the customer who prioritises price comparison and targeted boosts over a high-volume free bet schedule.

Paddy Power — the money-back special

Paddy Power’s running offer is built around money-back specials, acca insurance and daily price boosts, with a strong free-to-play games portfolio alongside. The money-back special is the most common shape: a refund as a free bet if a named selection (a goalscorer, a horse, a tennis player) loses, with a maximum refund and minimum odds rule. The refund is paid as a free bet whose stake is not returned, which is the standard shape across the featured set.

Paddy Power is operated by PPB Games Limited under Commission account 6845, the same parent as Betfair. The two brands share a parent and a licence but run as separate products, and the running offer stream at Paddy Power does not transfer to Betfair.

The verdict is that Paddy Power is the right home for the customer who bets on football and horse racing and likes a safety net on the selection. The refund is a free bet, not cash, and the customer who treats the money-back special as a hedge is overpaying for the hedge.

Betfair — the exchange that runs a sportsbook alongside

Betfair’s proposition is a betting exchange and a sportsbook in one product. The exchange lets the customer back and lay selections against other customers, with Betfair taking a commission on net winnings. The sportsbook runs a standard welcome offer and a stream of price boosts. The exchange is the part of the offer that the rest of the featured set does not have, and the customer who is comfortable with lay betting (betting that a selection will lose) gets access to a market the other brands do not price.

The exchange commission is the cost of using the exchange, not a bonus. The sportsbook welcome is a free bet bundle, governed by the brand’s customer terms. The free bet stream is the proposition, and the exchange is the proposition that compounds it.

The verdict is that Betfair is the right home for the customer who wants an exchange and a sportsbook under one login. The exchange is not a free bet, and the value of the offer is in the market access, not the headline.

Ladbrokes — the Coral sibling with a different offer stream

Ladbrokes runs acca insurance, odds boosts and free-to-play games in the same shape as Coral, with a different rotation. The two brands share a parent (LC International Limited) and a licence, and the offer stream is the differentiator: a customer who claims the Ladbrokes acca insurance and the Coral Reward Shaker is collecting from two different offer streams under the same licence. There is no rule against this, and the offer stream is the value the customer is collecting.

The welcome offer is the standard shape. The payment methods are the standard set. Ladbrokes serves the punter who wants a second account within the LC International group to diversify their offer stream.

Unibet — the best odds guaranteed and the daily Uniboost

Unibet’s running offer is built around the daily Uniboost, Best Odds Guaranteed on UK and Irish horse racing, live streaming through Unibet TV, in-play betting and Cash Out on thousands of markets. The Uniboost is a daily price enhancement on selected markets; the Best Odds Guaranteed is a structural offer that pays the higher of the price taken and the starting price on UK and Irish racing, which is a free option on every horse bet. The structural offer is more valuable than the daily boost, because it applies to every bet the customer places on a UK or Irish race rather than to a single selected market.

The welcome offer is the standard £40 in free bets for a £20 qualifying bet at minimum odds of 2.0, with the free bets expiring within seven days of issue and the qualifying bet placed by debit card or instant bank transfer. Unibet has been operating since 1999 and is run in the UK by Platinum Gaming Limited, Gibraltar, under Commission account 45322.

The verdict is that Unibet is the right home for the customer who bets on UK and Irish horse racing. The Best Odds Guaranteed is a structural offer that pays out on every race meeting, and the running boost is a top-up. The drawback is that the free bet expires in seven days, and the customer who places a small qualifying bet and lets the free bet expire forfeits the headline.

Betway — the free bet club and the all-rounder

Betway’s running offer is built around a Free Bet Club that credits a free bet to the customer who places a qualifying volume of bets each week, alongside acca boosts and a Bet Builder product. The Free Bet Club is the closest thing in the featured set to a recurring paid offer: the customer bets a fixed stake at minimum odds each week, and the brand credits a free bet in return. The free bet is paid as a free bet whose stake is not returned.

The welcome offer is the standard shape. The payment methods are the standard set. Betway is operated by Betway Limited under Commission account 53818.

The verdict is that Betway is the right home for the customer who bets weekly at a steady stake and wants a free bet at the end of each week. The Free Bet Club is a recurring paid offer rather than a structural one, and the value is the free bet minus the margin the customer pays on the qualifying bets.

The shape of the market: what the offer looks like from the outside

Ten brands, ten offer streams, one regulatory floor. The most striking thing about the featured set is how similar the welcome offers are: eight of the ten are a free bet bundle in the shape of “stake X at minimum odds, get free bet Y”, with the headline free bet sitting between two and four times the qualifying stake. The differences are in the details — the minimum odds, the deadline, the payment method on which the qualifying bet must be placed — rather than in the headline figure. The market has converged on a shape, and the shape is the shape the regulator allows.

The running offers diverge more widely. The strongest single offer in the featured set is William Hill’s Football Acca Boost, paid in cash, scaling to 200% on twenty legs, with a maximum boost of £10,000 per online bet and a 1/5 minimum odds rule. The next-strongest is Coral’s Football Super Series, paid in cash, free to enter, with a £10,000 jackpot and a daily free game alongside it. Spreadex’s Acca Boosts (5% to 100% on football accas of three or more legs) and Copybet’s Acca Booster (up to 100% cash on accas of at least three legs) are in the same family. BoyleSports’ Acca Insurance and Acca Loyalty are the refund-shaped version of the same offer: a free bet on a losing acca, paid weekly to opted-in customers.

The free-bet-shaped offers cluster around Coral’s Reward Shaker, Sky Bet’s free bet clubs, the Betway Free Bet Club and the various in-app credit offers. These are paid in free bets whose stake is not returned, and the value is a fraction of the headline. A £5 free bet at 5/1 on a market paying 88% is worth roughly £3.50; a £10 free bet at 3/1 on a market paying 90% is worth roughly £6. The headline is the stake, not the value.

The feature-shaped offers — Best Odds Guaranteed at Unibet, Bet Builder+ at bet365, request-a-bet at Sky Bet, the Supercharge random boost at Kwiff — are structural rather than recurring. The value compounds across every bet the customer places on the relevant market rather than paying out on a single selection, and the customer who uses the feature captures the value on every bet.

The angle of this page is cost, and the cost in the featured set is paid in three places. The first is the margin of the market the customer is forced onto by a minimum odds rule, which is a structural cost the bookmaker does not advertise. The second is the difference between a cash payout and a free bet payout on the same offer, which is a labelling cost. The third is the deadline, which is a behavioural cost: a free bet that expires unclaimed is the bookmaker keeping the headline. The 10x wagering cap has closed the most aggressive end of the first cost; the second and third are still entirely the operator’s choice, and the customer who reads the small print pays less for every offer.

Legality, regulation and the offshore alternative

The Gambling Commission is the regulator for the entire commercial gambling market in Great Britain, and a remote operating licence is the only legal way to take a bet from a customer in England, Scotland or Wales. The Commission is a non-departmental public body sponsored by the Department for Culture, Media and Sport. The framework is the Gambling Act 2005, which covers Great Britain; Northern Ireland is outside the Act and runs its own older law, so a brand licensed by the Commission is licensed for Great Britain and not for Northern Ireland. Since the Gambling (Licensing and Advertising) Act 2014 the requirement applies to any operator whose remote facilities are used in Great Britain, regardless of where the operator is based: a Curaçao, Maltese or Gibraltar licence is not a substitute for a Commission licence, and a brand that holds only an offshore licence is operating illegally in Great Britain even if it is legal in its home jurisdiction.

The licence categories in play on this page are remote general betting standard (real events), which covers the sportsbooks in the featured set, and remote betting intermediary, which covers the exchanges (Betfair, Smarkets). The two are separate categories under the Act. A sportsbook licence does not authorise the operator to run an exchange, and an exchange licence does not authorise the operator to run a sportsbook. The Commission’s public register is searchable by business name, trading name, domain or account number, and is the whole test of whether a brand holds a licence: there is no whitelist, no kitemark, and no other way to verify.

A customer who chooses an unlicensed brand — a Curaçao-licensed sportsbook, a Maltese-licensed sportsbook without a Commission licence, a brand that is not on the public register at all — gives up the protections the Commission’s regime buys. The customer is not committing an offence: the section 33 offence under the Gambling Act 2005 is aimed at the operator, not at the customer, and the available penalty is up to 51 weeks’ imprisonment, a fine up to level 5, or both (six months in Scotland). The customer is, however, exposed. There is no GAMSTOP coverage at an unlicensed site, so a customer who has self-excluded through the national scheme can still deposit and bet there. There is no Commission complaints route: a dispute with an unlicensed brand is a private dispute under the brand’s own terms, in the brand’s home jurisdiction, with no approved alternative dispute resolution body. There is no British consumer redress if the brand withholds funds. The 10x bonus cap does not apply, and the £150 financial vulnerability check does not apply, and the credit card ban does not apply, and the source-of-funds requirements do not apply. None of these absences is a benefit to the customer; they are the absence of the customer protection that the licensed market is built around.

The Commission’s enforcement is disruption rather than blocking. Cease-and-desist notices, referrals to search engines, work with registrars, hosts and payment providers, and court-order DNS blocking powers that have been granted or are about to be granted. The Commission does not maintain a state blocklist at the ISP level in the way some other jurisdictions do, and a customer who actively seeks out an unlicensed site can usually find one. The honest framing is that the licensed market is the customer-protected market, and the unlicensed market is the customer-exposed one; neither is “the safe choice” by default, and the choice is the customer’s.

The licensed market is also the only market in which the offers reviewed on this page are legal. A 50x wagering requirement on a bonus is not legal at a Commission-licensed brand; a mixed-product promotion is not legal at a Commission-licensed brand. The cap and the rule are the regulator’s response to a market in which the offer was the route through which the customer was steered into a higher-margin product under terms the customer had not read. The 10x cap is the ceiling on the wagering multiple, and the mixed-product ban is the ceiling on the cross-selling. Both are part of what the licence buys.

Frequently asked questions about existing customer betting offers in Great Britain

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

The Gambling Commission cap on wagering requirements, in force since 19 January 2026, is 10x the bonus amount. A £20 bonus at 10x requires £200 of qualifying bets at the operator’s stated minimum odds before the bonus cash is withdrawable. Whether the cap applies to a free bet with no wagering condition is not established in the Commission’s published guidance, and the default reading is that it does not, because there is no wagering condition to multiply.

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

A minimum odds rule is the floor on the price at which a qualifying bet or a free bet may be placed. A wagering requirement is the number of times the bonus (or the bonus plus the deposit) must be turned over in qualifying bets before the bonus is paid out as cash. A £20 bonus at 5x wagering with a minimum odds of 1/2 (1.5) on a market paying 88% requires £100 of qualifying bets and has an expected loss of £12 on the qualifying bets, against a £20 bonus.

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

A free bet is a token that gives the customer the winnings on a winning selection, not the stake. A £10 free bet at 5/1 (6.0) on a market paying 90% returns £50 in profit, not £60. The expected value of a free bet is stake × (odds − 1) ÷ odds × payout share, which is roughly £7.50 on a £10 free bet at 5/1 on a market paying 90%. A cash bet at the same odds and the same market would return £60.

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

No. The Commission rules in force since 19 January 2026 ban mixed-product promotions, which are offers that require the customer to gamble on two or more product types — for example betting and casino, or betting and bingo — in order to claim the offer. A sportsbook welcome that credits free casino spins is no longer permitted at a Commission-licensed brand.

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

The Commission’s public register is searchable by business name, trading name, domain or licence account number, and lists every brand that holds a current remote operating licence. The register is the whole test of whether a brand is licensed: there is no whitelist, no kitemark, and no other verification. Every brand in the featured set on this page is on the register; a brand that is not on the register is not licensed in Great Britain.

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

The customer pays no tax on betting winnings in Great Britain; the operator pays General Betting Duty on its gross profits from general betting, currently 15%, with a staged increase to 25% on remote betting from 1 April 2027. A professional gambler should ask HMRC or an adviser, because the position is different at the edge. Whether the operator narrows its odds to absorb the duty is not established, and the duty sits inside the margin the bookmaker builds into its prices, not on top of them.

Content created by the «Best betting exchange» team