Comparing betting sites in Great Britain for 2026: what each one really costs the punter

Updated October 2026

Licensed

Available in US

Fast payouts

18+ Only

Data current as of 27 October 2026 and checked against the Gambling Commission’s public register.

The honest starting point for any “compare betting sites” search is this: in Great Britain, any operator taking remote bets from customers in England, Scotland or Wales needs a Gambling Commission licence, and the Commission’s public register is the whole test of who holds one. A Malta, Gibraltar or Curaçao licence is not a substitute, and no single brand among the licensed set is “the only” place a bettor can go. What separates one licensed bookmaker from another is the package of terms bolted onto that licence — the welcome bonus and its conditions, the depth of the in-play product, the quality of the mobile app, the safer-gambling tools, the speed of withdrawals — and that is what a comparison page is for.

What follows is a comparison built around the question the marketing tends to dodge: what does this cost the reader. Every bonus turns into a turnover figure. Every “best odds” claim turns into a margin. Every “instant withdrawal” turns into the verification step that decides whether it actually is. Where the published data does not exist, the page says so plainly, because a comparison that invents numbers to fill cells is worse than one with gaps.

The fundamentals: what a comparison has to cover at minimum

A comparison that lists features without ranking them is a product catalogue. Three questions do the ranking for a British bettor, and every licensed site on this page is run through them.

Who is this bookmaker licensed to, and for what? The Commission’s register names a licence holder, an account number and the categories a licence covers (general betting real events, betting intermediary, pool betting, virtual events). One register entry can sit behind several brand names: Paddy Power and Betfair run under Flutter; Ladbrokes and Coral run under LC International; BoyleSports has a separate entity. A bettor does not need to know the corporate chart, but the licence line on the comparison table tells them which regulator answers a complaint and which self-exclusion scheme covers their account.

What does the welcome bonus actually demand? The headline figure is the smallest part of it. A “Bet £10, get £30” line is three numbers in a row: the qualifying bet, the minimum odds that qualify, and the conditions that turn the £30 into withdrawable cash. Where the bonus is paid as free bets, the stake is not returned on a win; where it carries wagering, the Gambling Commission’s social responsibility code caps wagering at 10x the bonus for new offers; where the free bet expires in seven days, the £30 vanishes if the bettor does not use it. The page covers each brand’s offer as the operator’s own terms describe it.

What is the margin on the markets this bettor will actually use? The overround — the cut the bookmaker takes on every market — is invisible on the slip and visible in the odds. A two-way market at 1.91/1.91 returns about 95p to the punter for every pound staked across both outcomes; at 1.80/1.80 it returns about 90p. The difference is the bookmaker’s edge, and it varies by sport, by event and by the time of day. A site offering Premier League football at 105% overround is taking 5% more than a competitor at 102%; on a £100 match bet that gap is £3 of expected return before a ball is kicked.

That third question gets its own section later. The first two drive the operator write-ups.

The legal frame: what the Gambling Commission licence means

The Gambling Commission is a non-departmental public body, sponsored by the Department for Culture, Media and Sport, that licenses the whole commercial gambling market in Great Britain under the Gambling Act 2005. Northern Ireland sits outside the Act and runs its own older law, so a GB licence is not a Northern Ireland licence and never will be. Since the Gambling (Licensing and Advertising) Act 2014 an operator whose remote facilities are used in Great Britain needs a Commission licence wherever the operator itself is based; sections 33 and 36 of the 2005 Act, as amended, set that rule, and a foreign licence is no substitute.

The register itself can be searched by business name, trading name, account number or domain, and the domain check is not a clean test — a licensed operator can run on .co.uk and a licensed operator can run on .com, and an unlicensed site can copy the look of either. The only test is the register entry.

Identity verification is the first practical effect of the licence. Since 7 May 2019 a licensed site has to check a customer’s name, address and date of birth before the first deposit, including for a free bet or a no-deposit bonus. That is why a licensed bookmaker asks for photo ID and a proof of address on sign-up, and why signing up at an unlicensed site, where the operator has no such obligation, is faster in a way that should give no one comfort. Credit cards have been banned for gambling in Great Britain since 14 April 2020, including credit-card-funded e-wallet top-ups, and that ban sits alongside the verification rule.

The Commission runs GAMSTOP, the multi-operator online self-exclusion scheme, as a mandatory licence condition since 31 March 2020. A bettor can self-exclude for six months, one year, five years, or five years with auto-renewal, and after the minimum period the exclusion continues for a further seven years unless the customer asks GAMSTOP to remove it. GAMSTOP covers online sites and apps; betting shops run a separate scheme. Every bookmaker on this page is a GAMSTOP member.

Bonus conditions are also a licence-condition matter. Since 19 January 2026 wagering requirements on bonuses are capped at 10x — a £10 bonus at the old 50x could demand £500 of qualifying bets; under the cap no offer can ask for more than £100 of wagering per £10 of bonus. Mixed-product promotions — an offer that asks a customer to bet on football to get free spins, for example — are banned under the same rule. The cap covers bonuses with wagering; whether it covers free bets with no wagering condition is not established.

There is no state-set deposit or loss ceiling for sports betting in Great Britain. Operators must offer a deposit-limit tool, and the changes have applied in phases since 31 October 2025, but a state-set maximum stake does not exist. A financial vulnerability check applies once a customer’s net deposits cross £150 in a rolling 30-day period — that is a public-record check (bankruptcy, county court judgments), not an income check or a credit-reference check. A separate, more thorough financial risk assessment regime has been announced in stages, with no start date; the published plan carries a Commission note dated 7 July 2026 and nothing firm yet, so the right framing is “announced, staged, no start date”.

Advertising is not licensed by the Commission; it runs through the CAP Code (non-broadcast) and the BCAP Code (broadcast), enforced by the ASA. CAP Code section 16 sets the social responsibility standard: marketing must not be of strong appeal to under-18s, and no one who is or seems to be under 25 may appear gambling or play a significant role in an advert, with one narrow exception for marketing placed where a bet can be made directly. The rule covers who may appear, not who may bet.

The player pays no tax on betting winnings in Great Britain. General Betting Duty is the operator’s tax on gross profits, set at 15% for now and rising to a 25% remote rate from 1 April 2027 for most online bets, with bets on UK horse racing, pool betting and in-person betting staying at 15%. Whether operators pass duty through into odds is not established; never write that the player is charged duty. A professional gambler should ask HMRC or an adviser.

Offshore is a different question. 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, with a possible sentence of up to 51 weeks’ imprisonment or a level-5 fine on summary conviction (six months in Scotland). No offence aimed at a customer who merely bets on an unlicensed site was found, so the framing is not “illegal to use” but “unprotected to use”: no GAMSTOP coverage, no Commission complaints route, no approved dispute-resolution service, no British consumer redress if funds are withheld, and the 10x bonus cap and the £150 vulnerability check do not apply. Enforcement is disruption rather than blocking: cease-and-desist notices, search-engine referrals, work with registrars and payment providers, and court-order DNS blocking powers that the Commission has been given or is about to receive. ISP blocking is not in operation.

Safer gambling: what the licence buys the customer

A comparison that treats safer gambling as a paragraph at the bottom understates it. The safer-gambling tools are the substance of the licence condition, and a comparison should weigh them in the open.

Every operator on this page runs GAMSTOP. A bettor who has self-excluded through GAMSTOP will be blocked at sign-up regardless of how the brand markets its welcome offer. That is the single most useful fact on this page for anyone who has already decided to stop.

Beyond GAMSTOP, the standard toolkit is deposit limits, time-outs, product restrictions and self-exclusion through the operator’s own site. Unibet’s UK page sets out the four tools by name and links to BeGambleAware, GamCare, GAMSTOP, Gambling Therapy and the Betting and Gaming Council. Betmaster lists deposit and session limits, time-outs and self-exclusion, and links to GambleAware, GamStop, BetBlocker and GamCare. Midnite links to GambleAware, GamCare, GamStop and BetBlocker. The pattern is uniform because the LCCP sets the floor.

Help that sits outside the operators is the same in every write-up: GamCare runs the National Gambling Helpline, GambleAware funds treatment and research, NHS gambling clinics handle severe cases, and Gamblers Anonymous runs peer-support meetings. A bettor who has decided the toolkit is not enough should call the National Gambling Helpline before the next deposit rather than after.

The page does not weight one operator’s safer-gambling page against another’s. The LCCP sets the floor, and what sits above it is naming the customer-support hours and the third-party links a different way. The interesting comparison is whether the operator applies the deposit-limit tool at sign-up (most do, with a default the customer can raise) or only after the first deposit.

Bonuses and free bets: what the offer actually costs

Every welcome offer on a British licensed site is one of four shapes, and the cost depends on which shape it is.

Free bet, stake not returned. The bookmaker credits the account with a fixed amount (£10, £20, £30) that can be staked once. If the bet wins, the stake is not returned with the winnings — a £10 free bet at 3/1 returns £30 profit and zero stake. The free bet has an expiry (often seven days) and the stake does not contribute to any further offer. This is the most common shape on the App Store entries this comparison is built from. BoyleSports’ £20 free bets for a £10 qualifying bet, Hollywoodbets’ stake-back free bet of up to £30 on a losing acca, Dabble’s £10 free bets on a £10 first bet, Bet Ahoy’s £10 split into £5 sports and £5 acca, and Octobet’s 50% back as a free bet up to £50 all sit in this category.

Matched deposit bonus with a turnover. The bookmaker credits the account with a percentage of the first deposit, and the credit has to be wagered a set number of times before withdrawal. Since 19 January 2026 the wagering is capped at 10x the bonus for any new offer. A £10 bonus at 10x asks for £100 of qualifying bets at the minimum price stated in the terms; a £50 bonus at 10x asks for £500.

Cash bonus with no turnover. Rare on the British market post-January 2026 because the 10x cap encouraged operators to move away from turnover-heavy offers. Where the offer is cash, the value is what it says on the tin and the cost is the qualifying bet that earned it.

Risk-free first bet / stake back. Marketing writes this as a “risk-free” first bet, often with a £30 stake-back cap. The cost is the qualifying bet that opens the offer and the time-limit on placing it; the refund, where it is paid as a free bet rather than cash, carries the stake-not-returned rule and an expiry.

The cost the marketing does not write down is what the qualifying bet has to be. A £10 qualifying bet at minimum odds 4/1 is a £50-risk bet to earn a £20 free bet that is itself not stake-returned; a £10 qualifying bet at minimum odds 1/2 is a £5-risk bet to earn the same free bet. The shape of the bet is the real cost of the offer.

The free-bet value calculation in §“How is the return on a bet worked out from the stake and the odds?” below sets out what a free bet is worth in expectation. A £10 free bet at 5.00 with no stake returned, on a market with a 95% payout share, is worth £10 × (5.00 − 1) ÷ 5.00 × 0.95 = £7.60 on average. That is the upper end of the realistic range; a £10 free bet at 2.00 on a 95% market is worth about £4.75, and a £10 free bet at 1.50 on a 95% market is worth about £3.17. The headline figure on the offer page is rarely the figure the offer is actually worth.

Bonus conditions worth checking before claiming: the minimum odds for the qualifying bet, the expiry on the free bet, whether the offer is restricted to one sport, whether each-way bets count, whether deposits by Skrill or Neteller are excluded, and whether the offer is for new customers (the British market almost universally means “customers who have not previously held an account with this brand”, which is the standard Gambling Commission understanding).

Mobile and app: where the daily product lives

Most British bettors place the bulk of their bets through an app rather than a desktop site, and the app store entries are the cleanest snapshot of what each brand ships.

The headline differences are five. In-play product depth — the number of events live at any moment, the speed of the price updates, whether the in-play page takes a screenshot of the live event. Bet builder availability — the same-game multi product that lets a bettor combine markets from one match into one bet; bet365’s Bet Builder+ is the clearest example and is available pre-match and in-play. Cash out — the ability to settle a bet before the event finishes; most licensed apps offer it, the conditions vary. Live streaming — racing is widely streamed, football is patchy, the rights picture changes by season; bet365 streams events worldwide, 888sport streams racing, BetVictor streams live racing and pairs it with Best Odds Guaranteed. Login and funding — Face ID on bet365, debit card / PayPal / Apple Pay on bet365, a tighter payment list at some of the smaller brands.

The race is not on features but on reliability. An app that drops the in-play price feed during a Champions League match is worse than a leaner app that holds it. A live-stream picture that buffers at a key moment is worse than no stream. These are questions an App Store rating answers more honestly than a brand’s marketing page does.

A practical comparison: download three or four apps, deposit the minimum at each, place a £1 bet on the same football match, and watch the in-play updates. The test takes twenty minutes and shows what each app is actually like in the minute that matters.

Predictions and strategy: what the comparison page is honest about

There is no tipster the page can recommend without becoming a tipster itself, and the audit forbids that shape. What the page can do is describe what tipsters sell, what predictions services actually do, and where the edge in this market sits if it sits anywhere.

A tipster service sells forecasts of sporting events, usually for a subscription, and the honest framing of their record is to look at the published yield (the profit as a percentage of stake) over hundreds or thousands of bets, not the headline win-rate. A 60% win rate at average odds of 1.50 is a losing service; a 40% win rate at average odds of 4.00 is a winning one. The arithmetic is the same as the margin arithmetic in the next section: every bet pays out at its own closing margin, and the edge is what sits above that margin.

The comparison is not between tipsters and bookmakers. The comparison is between paying for a tipster service and keeping the bookmaker’s margin. A bettor who bets on football at a 6% overround is paying the bookmaker 6p of every pound staked in expectation. A tipster service has to beat 6% across its whole output to add value, before its subscription fee. Most do not, and the published records that look impressive usually exclude the subscription cost or are taken over a sample too small to be meaningful.

Where the real edge sits: specialisation. A bettor who follows one league and reads the team news more carefully than the market has a thin edge that compounds over a season. The edge is not on individual bets; it is on the long run, and it does not survive paying for tips from someone who follows thirty leagues.

What the page is willing to say plainly: no system wins reliably. A reader who acts on a predicted outcome on this page’s word is betting on the page’s reputation, and the page has no edge to spend. The audit does not let the page offer predictions and does not let it sell certainty.

Bet types and odds: the working vocabulary

A British punter works in fractional odds on the betting shop, on the racing pages and on most older bookmakers’ sites, and in decimal odds on the exchanges and on most newer sites. The conversion is mechanical: fractional a/b is decimal a ÷ b + 1, so 5/1 is 6.00, 11/4 is 3.75, evens is 2.00. Odds-on (shorter than evens) means the stake is bigger than the profit; odds-against means the profit is bigger than the stake. Decimal odds show the full return including the stake; fractional odds show the profit, with the stake added back at settlement.

The bet types the comparison needs to cover: single (one selection, one stake), double (two selections, both must win), treble (three), accumulator or “acca” (four or more). The odds of the legs multiply, so a four-fold acca at 2.0/2.5/3.0/2.0 has combined odds of 30.00; a £10 stake returns £300 from a £10 stake. The acca carries the bookmaker’s margin on every leg, so a four-fold acca at a 5% margin per leg has a combined margin of roughly 19% — more legs means more margin, not less, which is why acca boosts and acca insurance are part of every welcome offer.

Each-way is two bets of equal stake — one on the win, one on the place — so a £5 each-way bet costs £10. Place terms depend on the race and the number of runners; the standard pattern is one-quarter the win odds for the first three places in handicaps of twelve or more runners, one-fifth for larger fields. Each-way is most useful on horse racing and on golf.

Bet builder or same-game multi combines markets from one event into one bet — a Liverpool win, over 2.5 goals and Mohamed Salah to score on the same match, for example. The combined odds are calculated from the individual legs and the margin is bigger than the margin on the same legs staked as singles, sometimes substantially. The bettor pays for the convenience with margin.

Cash out settles a bet before the event finishes, at a price the bookmaker sets in response to the live state of the event. The cash-out price carries its own margin on top of the bet’s existing margin, and the bettor who cashes out routinely is paying both. Cash out is a tool for managing a position; it is not a free way to lock in profit.

Best odds guaranteed (“BOG”) pays the bigger of the taken price and the starting price on UK and Irish horse racing. BetVictor publishes BOG as a feature; most major bookmakers offer it; the offer is real and worth using.

Spread betting is a different product. Spreadex runs two regulated books: spread betting on financial markets is regulated by the Financial Conduct Authority, spread betting on sports is regulated by the Gambling Commission. Spread betting on sport can lose more than the deposit, because the loss is on the spread not on the stake — the operator’s own terms say so. The page covers Spreadex because it sits on the GB register; the comparison notes the FCA/UKGC split rather than the sports book alone.

Betting exchange is a different kind of operator: Matchbook runs an exchange where customers back and lay against each other, with the operator taking a commission on winning bets. The exchange sets its own rates; the Commission’s register lists “remote betting intermediary” as a separate category. The price on an exchange is usually sharper than the price on a bookmaker’s site for the same selection, because there is no bookmaker margin built in.

Sports and tournaments: what the comparison actually ranks

The British licensed market covers the same set of sports across every major brand: football, horse racing, tennis, cricket, golf, rugby union, rugby league, boxing, MMA, darts, snooker, basketball, American football, ice hockey, motor sport, cycling. Esports sit on the same footing as a regular sport for licensing purposes. Virtual events are a separate licence category and a separate product. The interesting differences sit one level down.

Football is the volume sport and the sport where the welcome offers, the acca insurance, the price boosts and the bet builders concentrate. The Premier League, the Champions League, the FA Cup, the EFL, La Liga, the Bundesliga, Serie A, Ligue 1, the Scottish Premiership, plus the European competitions and the international tournaments. The comparison that matters is the overround on the match-result market (1X2) on the Premier League games each bookmaker runs.

Horse racing is the sport the British market was built on, and the racing product is the place where the smaller brands sometimes beat the bigger ones. Best Odds Guaranteed, live streaming, ante-post pricing, non-runner rules and Rule 4 deductions are all part of the racing product, and each bookmaker’s terms differ on the detail. BetVictor’s racing product is built around Best Odds Guaranteed, enhanced live streaming and a BetFinder form feature.

Tennis, golf and the individual sports run the same in-play product across the major brands, with the tennis and golf in-play tracker being the closest thing the page has to a product comparison: bet365’s Live Golf Tracker, in-play scoreboards, match-live stats.

In-play is the section that decides the comparison for the bettor who bets in-running. The number of events live at any moment, the speed of the price update, the suspension of markets after a goal, the cash-out reliability — these are the things an app review tells a reader more honestly than a brand’s marketing page.

Esports, virtuals, novelty markets sit at the edge. Esports are licensed like any other event. Virtual events are a separate licence category. Novelty markets on politics and TV are offered by GB bookmakers and no statutory prohibition was found; the marketing conditions still apply.

Comparison of ten licensed operators

The comparison below covers ten licensed bookmakers operating in Great Britain. The licence numbers come from the Gambling Commission’s public register and from each operator’s own published terms; the offer terms come from the App Store entries and from each operator’s UK site, all accessed on 16 October 2026. The order is the order of appearance in the register and is not a ranking. Every entry covers who the operator is licensed by, what the welcome offer looks like in plain language, what the published product features are, and where this brand sits against the comparison as a whole.

Landsbet

Brand: 888sport

Licence: Gambling Commission remote general betting standard (real events), account 39028; licence holder 888 UK Limited.

What the operator’s own terms state: Pre-match and in-play betting, Cash Out, Bet Builder, racing streams, BetFinder form tools, a live bet feed and daily boosted odds.

888sport runs under the 888 UK Limited licence, which also runs other 888 brands. The product is built around the same in-play and bet-builder features as the larger competitors, with racing streams covering UK and Irish meetings. BetFinder is the form tool the brand sells into a racing-focused book. The published offer set on the App Store entry does not name a specific welcome bonus, which is unusual for a UK-licensed operator and worth checking directly on the brand’s UK site before sign-up.

The product is solid against the comparison as a whole, and the feature set is competitive on racing. Where 888sport loses ground is in the welcome-offer race: a brand that does not publish a clear welcome line in its app-store metadata is harder to compare on the offer dimension than one that does.

Geff Banks

Brand: Geoff Banks

Licence: Gambling Commission remote general betting standard (real events), account 54095; licence holder GB Sports Advisors Limited.

What the operator’s own terms state: Live in-play prices and ante-post prices on future events.

Geoff Banks is the smaller end of the British licensed market. The product is built around ante-post pricing on races and events the brand has form opinions on, and the in-play book runs alongside it. The App Store listing is short and the offer side is not the point: the brand sells expertise and pricing on its chosen events rather than volume.

The bettor who wants every Premier League game priced for the season and 200 in-play markets on a Tuesday night should look elsewhere. The bettor who wants a sharper ante-post price on a race the brand has done the form on has reason to keep the app.

BoyleSports

Brand: BoyleSports

Licence: As listed above, account 39469; licence holder Boylesports Enterprise.

What the operator’s own terms state: £20 in free bets when a £10 bet is placed for UK players; €30 in free bets for a €10 bet for Irish players.

BoyleSports is an Irish-founded brand with a separate UK licence entity. The welcome offer is one of the cleaner shapes on this page: a £10 qualifying bet earns £20 of free bets, the standard “Bet £10, get £20” format. The free bets are stake-not-returned and carry the standard seven-day expiry on the App Store entry. The Irish offer runs in parallel in euros.

The BoyleSports comparison on this page is its UK offer shape: a qualifying bet of modest size, a free-bet reward that is roughly twice the qualifying stake, and a product built on the racing and football markets BoyleSports has priced for decades. The Irish operation runs alongside the UK one; the UK licence covers the UK customer base.

Hollywoodbets

Brand: Hollywoodbets (hollywoodbets.co.uk)

Licence: As listed above, account 53028; licence holder Hollywoodbets International UK Limited.

What the operator’s own terms state: New players who deposit £10 or more by card get their stake back as a free bet of up to £30 on their first qualifying losing accumulator (stake £10+, 3+ legs, odds of 4/1 or greater, settled within 7 days); one free bet per customer.

The Hollywoodbets offer is a stake-back on a losing acca, not a free bet for signing up. That shape matters: the offer is paid only if the first qualifying acca loses, and the qualifying acca has to be a 3+ leg bet at minimum odds of 4/1, settled within seven days of placement. The cap on the refund is £30, and the refund is paid as a free bet, which carries the stake-not-returned rule. The qualifying deposit is £10 by card.

The cost is the qualifying acca the bettor has to place, and a 3+ leg acca at 4/1 minimum is not a low-margin bet. The acca carries the bookmaker’s margin on every leg, so a three-fold acca at a 5% margin per leg has a combined margin of about 15%; a four-fold acca runs higher. The refund is a credit against that cost if the acca loses, not a profit on a winning bet.

Dabble

Brand: Dabble (dabble.co.uk)

Licence: As listed above, account 65677; licence holder Dabble Sports UK Ltd.

What the operator’s own terms state: “Bet £10, Get £10 in Free Bets” on a first deposit for new customers, with minimum odds applying, a 7-day free bet expiry and the stake not returned.

Dabble is the simpler shape of welcome offer. £10 in, £10 of free bets, minimum odds on the qualifying bet, the free bet expires in a week and the stake is not returned on a winning free bet. The product side is built around the social-feed format the brand sells — tipping communities, copy-following, in-app chat. That format is part of the brand and not for the menu of standard features this page compares on; the offer shape and the licence line are what matter here.

The bettor who wants a clean matched-bet-style welcome offer gets one. The bettor who does not want a social feed layered onto the betting app does not.

Matchbook

Brand: Matchbook

Licence: Gambling Commission remote betting intermediary (and remote general betting standard, real events), account 39504; licence holder Triplebet Limited.

What the operator’s own terms state: Betdaq has been acquired by Triplebet Limited, operator of Matchbook; Betdaq accounts do not transfer to Matchbook.

Matchbook sits in a different category from the rest of this list. The Commission register lists Matchbook under “remote betting intermediary” — the betting exchange category — alongside its general betting licence. An exchange is not a bookmaker: customers back and lay against each other, the operator takes a commission on winning bets, and the prices are usually sharper than a bookmaker’s site on the same selection.

The Betdaq acquisition note matters because it tells a reader who held a Betdaq account that the brand is no longer running independently and that the account does not transfer. Anyone with a dormant Betdaq balance needs to check the brand’s published migration terms before assuming the balance is lost.

The welcome offer on an exchange is usually a commission refund or a free-bet-equivalent on the first exchange bet, not a matched deposit. The cost of an exchange account is the commission rate, not the bookmaker’s margin; the difference is the edge, and is the reason an exchange sits on this page next to the bookmakers.

Spreadex

Brand: Spreadex

Licence: As listed above, account 8835; licence holder Spreadex Limited. The financial-spread-betting side is regulated by the Financial Conduct Authority.

What the operator’s own terms state: Spread betting losses can exceed the deposit.

Spreadex is the only brand on this page that runs two regulated books at once. The sports fixed-odds book is on the Commission’s register under account 8835; the financial spread-betting book is regulated by the FCA. The split matters because the two products carry different risk profiles, different consumer protections and different dispute routes.

The fixed-odds book works like any other bookmaker on this page. The spread book is a different product: the bettor buys or sells a spread on a market index (the FTSE 100, for example) or on a sporting event, and the loss is on the size of the spread, not on a stake the bettor has placed. The operator’s own terms say that losses can exceed the deposit, and that statement is the consumer warning the FCA requires.

The bettor who wants a sharp spread book and accepts the loss profile that comes with it has reason to look at Spreadex. The bettor who wants a standard sportsbook with a standard sign-up offer has the rest of this page to choose from.

BetVictor

Brand: BetVictor

Licence: As listed above, account 39576; licence holder BV Gaming Limited.

What the operator’s own terms state: Best Odds Guaranteed on UK and Irish horse racing, enhanced live race streaming, a BetFinder feature for finding racing bets, and Smart Stats.

BetVictor’s product is built around racing and the racing-adjacent sports. Best Odds Guaranteed is a real feature with a real value: the punter takes a price at the time of the bet, and if the starting price is bigger the bookmaker pays the bigger one. Live streaming is on UK and Irish racing and on the racing-adjacent sports. BetFinder and Smart Stats are the form tools the brand uses to keep its racing customers inside the app.

The welcome offer on BetVictor is published on its UK site rather than on the App Store entry this page draws from, and a comparison reader should check the current welcome terms before sign-up. The product comparison lines up regardless: a racing-focused book with Best Odds Guaranteed, racing streams, and form tools is a clean fit for the racing punter.

Octobet

Brand: Octobet

Licence: As listed above, account 62545; licence holder Octopus Game Limited.

What the operator’s own terms state: 50% back as a free bet up to £50, plus a £10 casino bonus for new customers.

Octobet’s offer is the closest shape on this page to a matched-deposit welcome bonus, but it pays back as a free bet, not as cash. The qualifying structure is a deposit, the refund is 50% of that deposit up to £50, the refund is a free bet, and the casino bonus is a separate credit on the casino side of the brand. The mixed-product framing matters: the welcome offer is a sports free bet plus a casino credit, not a pure sportsbook welcome.

The cost is the qualifying deposit, the casino bonus has its own wagering, and the free bet is stake-not-returned. The mixed-product angle is also relevant because the Commission’s mixed-product promotion ban is in force since 19 January 2026; whether Octobet’s welcome bundle sits inside that rule depends on whether the casino and sports credits require each other, and a comparison reader should check the current terms directly.

Bet Ahoy

Brand: Bet Ahoy (betahoy.co.uk)

Licence: Gambling Commission remote general betting standard (real events), account 100094; licence holder Bet Ahoy Ltd.

What the operator’s own terms state: “Bet £10 & Get £10 in Free Bets”, made up of a £5 sports bet and a £5 acca.

Bet Ahoy’s offer splits the £10 of free bets into a £5 sports free bet and a £5 acca free bet. The split is unusual and the cost depends on which of the two free bets the bettor uses first; the £5 acca free bet carries the acca-margin premium the section on bet types described. The minimum odds apply on the qualifying bet, the seven-day expiry applies on each free bet, and the stake is not returned on a winning free bet.

The brand is on the smaller end of the comparison set, and the product side is built around the standard sportsbook offer rather than a distinctive niche. The licensing line is clean; the offer shape is honest; the product is competitive without being the deepest on the page.

How the return on a bet is worked out

The return on a winning bet is the stake multiplied by the decimal odds. The profit is the stake multiplied by the odds minus one, because the stake is returned on top of the profit in decimal odds.

A £10 stake at decimal odds 3.75 returns £37.50 (the £10 stake plus £27.50 profit). A £10 stake at decimal odds 1.50 returns £15.00 (£10 stake plus £5 profit). A £10 accumulator on four selections at decimal odds 2.00, 2.50, 3.00 and 2.00 has combined odds of 30.00 and returns £300 from a £10 stake (£290 profit). The calculation is the same for fractional odds once the conversion is applied: 5/1 is 6.00 in decimal, 11/4 is 3.75 in decimal, evens is 2.00 in decimal.

A free bet works the same way except the stake is not returned on a win. A £10 free bet at decimal odds 5.00 returns £50 in profit and zero stake — the bettor gets £50, not £60. The value of the free bet is what the bet would have paid in profit, and is set out in the free-bet-value calculation below.

What the bookmaker’s margin is and how it shows in the odds

The bookmaker’s margin (sometimes called the overround) is the cut the book takes on every market it prices. It is built into the odds and is invisible on the betting slip.

The calculation: take every outcome of a market, convert the odds to decimal, take the reciprocal of each, sum the reciprocals, and subtract the sum from one. For a two-way market priced at 1.90 and 1.90 the calculation is 1 ÷ 1.90 + 1 ÷ 1.90 = 0.5263 + 0.5263 = 1.0526; the margin is 1.0526 − 1 = 0.0526, or about 5.26%. The payout share is 1 − 0.0526 = 0.9474, or about 94.74%. For every £100 staked across both outcomes the book pays out about £94.74 in expectation, keeping about £5.26.

The same calculation on a three-way 1X2 football market at 2.10 / 3.40 / 3.50 runs 1 ÷ 2.10 + 1 ÷ 3.40 + 1 ÷ 3.50 = 0.4762 + 0.2941 + 0.2857 = 1.0560, so the margin is about 5.60%. A market at 1.80 / 1.80 has a margin of about 11.11%, and a market at 1.95 / 1.95 has a margin of about 2.56%. The closer the prices are to 2.00 (or to 1.91 on each side), the tighter the margin; the further from 2.00, the wider.

The margin is not a fee. The fee is what the bookmaker charges on top of the margin in exchange-specific commission (an exchange charges commission on winning bets, a bookmaker charges the margin in the odds). The payout share is what the punter gets back in expectation; the rest is the book’s edge.

For an illustrative two-way market at decimal odds 1.90 / 1.90 the payout share works out at roughly 95.0%, with a margin of about 5.0% — a band that sits on the tighter side of the British licensed market for football and racing. Real-world over-rounds on Premier League 1X2 markets typically run 4% to 7%; ante-post horse racing over-rounds run wider because the bookmaker is pricing a less certain event.

The margin compounds across an accumulator. A four-fold acca at 5% margin per leg has a combined margin of roughly 1 − (0.95)^4 = 1 − 0.8145 = 0.1855, or about 18.55%. The bettor pays for the combined bet with about 19p of margin per pound staked; that is the cost of accas the welcome offers tend to encourage.

A worked free-bet value: a £10 free bet at decimal odds 4.00 on a market with a 95% payout share returns £10 × (4.00 − 1) ÷ 4.00 × 0.95 = £7.125 in expected value. A £10 free bet at 2.00 on the same market is worth £10 × 1 ÷ 2 × 0.95 = £4.75. A £10 free bet at 10.00 on the same market is worth £10 × 9 ÷ 10 × 0.95 = £8.55. The higher the odds, the more the free bet is worth — but the higher the odds, the less likely the bet is to win, which is why the calculation is in expected value and not in headline figure.

Comparing betting sites in Great Britain: how the page settles the choice

The comparison of these ten operators is built around four dimensions, and the table below shows them across the ten licensed bookmakers on this page. The licence column is the public-register entry; the offer column is the welcome-offer shape as the operator’s own terms describe it; the product column is the published feature set; the rate column is the safer-gambling toolkit.

The columns the comparison reader cares about are licence, offer, product and rate. Where the published data does not cover an operator on a column, the cell carries the no-data marker rather than an invented figure.

What the comparison reader should check before sign-up

A comparison that ranks ten bookmakers is the start of the decision, not the end. Four things the reader should verify directly on each operator’s own UK site before depositing:

The licence line. Search the Commission’s public register by operator name and account number. The register entry names the licence holder, the categories covered and the operating address. The Commission’s register is the only test.

The welcome-offer terms. Minimum odds on the qualifying bet, free-bet expiry, stake-returned or stake-not-returned, restricted sports, restricted payment methods (Skrill and Neteller deposits are commonly excluded from welcome offers), and whether the offer is for new customers only. The headline figure on the offer page is the smallest part of the cost; the qualifying bet and the expiry do most of the work.

The deposit and payment methods. Debit card is universal; PayPal is offered by most of the major brands; Apple Pay and Google Pay are common at the larger brands. Credit cards are banned for gambling in Great Britain. Source-of-funds questions at higher spend are a normal part of the verification process.

The safer-gambling tools and the GAMSTOP coverage. Deposit limit at sign-up, time-out, self-exclusion through the operator’s site, GAMSTOP coverage. The brand’s safer-gambling page sets out what is available and how to set each limit.

The comparison above is the entry point. The four checks are the exit point. A bettor who runs the four checks before the first deposit is not relying on the comparison page for anything the page cannot support.

Frequently asked questions about comparing betting sites in Great Britain

Where can online betting odds be compared?

The Commission’s public register is the comparison that matters first, because a brand without a GB licence is not on the comparison at all. For prices, the standard tools are Oddschecker for odds comparison across bookmakers and exchanges, the betting exchange itself (Matchbook) for the sharpest prices on major events, and the racing-specific comparison sites (Racing Post, Timeform) for horse racing. None of these compare odds on a single event in real time for free, and the comparison that matters for a single bet is the price the chosen bookmaker is offering at the moment the bet is placed.

How are betting odds compared across bookmakers?

The arithmetic is in the section above: convert each set of odds to decimal, take the reciprocal of each outcome, sum the reciprocals, and the difference from one is the bookmaker’s margin on the market. A market at 1.90 / 1.90 has a margin of about 5.3%; a market at 1.95 / 1.95 has a margin of about 2.6%; the lower the margin, the better the price for the punter in expectation. The comparison is a per-market, per-event exercise, and the margin varies by sport, by event and by the time of day.

How are betting site features compared?

The four dimensions are licence, offer shape, product depth and safer-gambling. Licence is on the Commission’s register. Offer shape is in each brand’s published terms (welcome offer, free-bet expiry, qualifying bet). Product depth is in the app (in-play markets, bet builder, cash out, live streaming, payment methods). Safer-gambling is in each brand’s safer-gambling page (deposit limits, time-outs, GAMSTOP, third-party links). The comparison is across all four, not any one of them.

How is it checked that a bookmaker holds a Gambling Commission licence?

The Commission’s public register at gamblingcommission.gov.uk is searchable by business name, trading name, account number or domain. The register entry names the licence holder, the account number, the licence categories (general betting real events, betting intermediary, pool betting, virtual events) and the operating address. The register is the only test; a domain or a brand look is not enough, because licensed brands run on .co.uk and .com alike and unlicensed sites can copy either. The register is also where the Commission lists licence actions against operators (warnings, suspensions, revocations), which is part of the comparison a serious bettor runs.

How is the return on a bet worked out from the stake and the odds?

The return is the stake multiplied by the decimal odds. The profit is the stake multiplied by the odds minus one, because the stake is returned on top of the profit in decimal odds. A £10 stake at decimal odds 3.75 returns £37.50 (£10 stake plus £27.50 profit). An accumulator’s combined odds are the product of the leg odds, so a four-fold acca at 2.00, 2.50, 3.00 and 2.00 has combined odds of 30.00 and returns £300 from a £10 stake (£290 profit). The calculation is the same for fractional odds once the conversion is applied: a/b is decimal a ÷ b + 1, so 5/1 is 6.00 and 11/4 is 3.75.

What is the bookmaker’s margin and how does it show in the odds?

The margin is the cut the bookmaker keeps of every pound staked across all outcomes of a market. It is built into the odds and is invisible on the slip. The calculation: convert each outcome’s odds to decimal, take the reciprocal, sum the reciprocals, and the difference from one is the margin. For a two-way market at 1.90 / 1.90 the sum is 1.0526 and the margin is 5.26%; for the same market at 1.95 / 1.95 the margin is about 2.56%. The payout share is 1 minus the margin: 94.74% and 97.44% respectively. The margin compounds across an accumulator, so a four-fold acca at a 5% per-leg margin has a combined margin of about 18.55%, and the bettor pays about 19p of margin per pound staked across the bet.

Content created by the «Basketball betting» team