Best Betting Sign-Up Offers in Great Britain: What They Really Cost in 2026

Updated October 2026
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How much is a welcome offer actually worth, and what does it cost you to turn it into withdrawable cash? That is the question underneath every “best betting sign-up offers” search, and the answer in Great Britain has shifted twice in twelve months — once because the Commission tightened the bonus rules in January 2026, and once because the affordability framework the press keeps calling “checks on punters” has been announced but not implemented. This page reads every offer the same way a sharp punter reads it: as headline pounds attached to a qualification, an expiry and a wagering requirement, and as a margin the bookmaker keeps whatever your bet does. Ten GB-licensed brands sit underneath that filter, and the words the marketing puts on them — “free”, “risk-free”, “boosted” — survive it or do not.

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Kalooki Sportsbook is operated by Kalooki Sports Book Ltd (company number 12938274), licensed by the Gambling Commission under account number 57730, and is a GAMSTOP member.

*Current as of 27 October 2026 · verified against the Gambling Commission’s public register of operating licences.*

How a Sign-Up Offer Works in Great Britain

The shape every welcome offer takes

A betting sign-up offer in Great Britain is a one-time promotion handed to a new customer who opens an account, deposits and places a first bet. In its cleanest form the customer stakes a small qualifying amount — typically £5, £10 or £20 — at minimum odds somewhere between 1/2 (1.50 decimal) and 2.0 (1/1), and in return receives a fixed value of free bets or bet credits. Coral calls this shape “bet £20, get £40 in free bets”; Sky Bet hands over three £10 free bet tokens when a customer places a 5p first bet at 1/1 or greater; Spreadex gives £60 in free bets for a £10 fixed-odds bet. Betmaster, BetGoodwin, Vbet and Unibet each run their own version of the same shape, with a different qualifying stake and a different headline return.

Three things vary across the ten offers on this page. The first is what you must stake to qualify. The second is what you actually receive, because free bets and deposit bonuses are two different things and the Commission treats them differently. The third is the deadline: most free bet tokens expire seven days after issue, and an unclaimed qualification sits unused when the window closes.

Free bet, deposit bonus, risk-free bet

A free bet is a token the bookmaker credits to your account once the qualifying bet has settled. The stake is not paid back with the winnings: place a £10 free bet at 3/1 and a winning return is £40 of profit, not £50. A deposit bonus is added to your account as withdrawable bonus money once you have met a wagering requirement — a turnover multiple applied to the bonus, which makes the bonus and any winnings tied to it available for withdrawal. A “risk-free” bet is, in almost every case, a free bet issued only if your first bet loses — Unibet’s Spreadex-adjacent shape and Vbet’s £10 free bet on a losing first bet both fit this pattern — and the reader should treat the word “free” as descriptive of price, not of cost. A free bet whose stake is forfeited costs the customer the wagered amount on every outcome; that cost is the wagering opportunity foregone, and it is the reason a £10 free bet at long odds is worth more to you than the same free bet at short odds.

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Unibet states it has operated since 1999, and its UK site is run by Platinum Gaming Limited, Gibraltar, under Gambling Commission account 45322.

What the headline number leaves out

The headline number is the offer; the terms behind it are the cost. Minimum odds are a filter on what counts as a qualifying bet. The expiry is the deadline by which free bet tokens must be used. Stake-not-returned means a winning free bet returns profit only. Maximum winnings or maximum stake caps may sit on top of bonus-funded bets. Some offers gate the qualification on a payment method: Coral and Unibet both require a debit card or instant bank transfer for the qualifying deposit, ruling out e-wallets and pay-by-mobile for that first deposit. None of those numbers appear in the headline figure, and a reader who only reads the headline will over-estimate the offer.

The UK Rules That Govern Every Offer

The Gambling Commission and the licence register

Every bookmaker named on this page holds a remote operating licence from the Gambling Commission under the Gambling Act 2005 — a licence that authorises the operator to advertise to and accept customers from Great Britain. The Commission’s public register lists each licensee, the trading names they run and the categories of licence they hold. Five categories matter for sports betting: remote general betting standard (real events), which covers fixed-odds sports betting; remote general betting standard (virtual events); remote general betting limited; remote pool betting, for off-course pool betting on horse and dog racing; and remote betting intermediary, the licence that runs a betting exchange such as Smarkets. The register is searchable by business name, trading name, domain or account number, and it is the only place a licence can be confirmed by a reader. Domains prove nothing: a GB-licensed operator may run on .co.uk, .com or both.

An empty football stadium with floodlight masts at dusk
Midnite's site cites Gambling Commission licence 101839 and shows in-play events, an acca builder, popular accas and price boosts with maximum-stake limits.

A bookmaker on this list runs as a remote operator and is registered with GAMSTOP, the national multi-operator self-exclusion scheme. The Commission’s LCCP makes GAMSTOP membership a condition of every remote licence. Every site must verify a customer’s name, address and date of birth before the first deposit, and that requirement applied as far back as May 2019 — there is no anonymous play at a licensed brand, and a free bet still goes through the same checks.

The £150 financial vulnerability check and the announced affordability reviews

Two pieces of player-protection regulation sit in force now, and a third is on the way. The financial vulnerability check, in LCCP condition 3.4.4, runs from 30 August 2024 and applies to any remote customer whose net deposits — deposits minus withdrawals — exceed £150 over a rolling 30-day window; the rule switched from guidance to hard condition in February 2025. It is a public-record check, looking at markers like county court judgments, and it is not an income check.

A separate tier of “financial risk assessments” — the affordability checks the papers have described in their briefings — was announced in a Commission article of 7 July 2026 with no start date. Write that as “announced, staged, no start date”, not as in force. Until that framework is active, the vulnerability check is the only mandatory intervention that triggers at a spending threshold, and even it asks the public-record question rather than the open-ended affordability one.

The bonus rules that took effect in January 2026

Two changes to the Commission’s promotion rules took effect on 19 January 2026. The wagering requirement on a bonus is capped at 10x — a £10 bonus may ask for no more than £100 of qualifying wagers, where older offers asked for 50x or higher. A mixed-product promotion is banned: an offer that requires gambling on two or more product categories — for instance, betting on football to qualify for free casino spins — is now outside the rules. The 10x cap puts a ceiling on how steep a turnover can be; the mixed-product ban closes a route by which bookmakers used to lock customers into a casino alongside a sportsbook. Whether the 10x cap applies to a free bet whose only condition is stake-not-returned is not established: research found no Commission statement on that point, so the answer is treated as unsettled.

The taxation that does not touch the punter

The player pays no tax on betting winnings in Great Britain. General Betting Duty is the operator’s tax on gross profits, currently 15%. From 1 April 2027 a new remote betting rate of 25% applies within it; remote bets on UK horse racing, self-service terminal bets, pool betting and in-person betting stay at 15%. Spread betting sits at 3% on financial products and 10% on the rest. None of those rates are charged to the customer. Operators decide whether to pass the duty through in odds, and the Commission’s research has not established whether they do — that is a settled tax fact, not a customer-facing one.

What an unlicensed brand costs the customer

A Curaçao-licensed or Maltese-licensed site is not licensed in Great Britain at the point of consumption. Section 33 of the Gambling Act 2005 makes providing gambling facilities in Great Britain without a Commission licence an offence — aimed at the operator, not at the customer. No offence aimed at a customer who uses an unlicensed site was found. What the customer loses is the protective frame: no GAMSTOP coverage, no Commission complaints route, no approved dispute-resolution service, no British consumer redress if funds are withheld, and no exposure to the 10x bonus cap or the £150 vulnerability check. Enforcement is disruption rather than blocking — cease-and-desist notices, search-engine referrals, registrar and payment-provider pressure, court-order DNS blocking powers that are being prepared rather than in operation. The framing is licensed-versus-unlicensed, not safe-versus-unsafe, and the costs are asymmetric in the customer’s direction.

Responsible Gambling Tools and Where Help Is Found

The safer-gambling tools that operate at the account level

GB-licensed bookmakers run their own safer-gambling tooling, and the regulator audits it. DAZN Bet offers deposit limits, loss limits and wagering limits as account-level controls. Most brands on this page expose the same three: deposit caps the customer sets on themselves; time-out for a cooling-off window; and self-exclusion requests that, separately from the account, are mirrored to GAMSTOP. Every limit is a choice the customer makes; no regulator sets a default ceiling, and no bookmaker publishes a stat saying how often customers hit theirs.

GAMSTOP and how long it lasts

GAMSTOP is the national multi-operator online self-exclusion scheme. Membership is mandatory for every remote operator under the LCCP. Excluded periods are six months, one year, five years, or five years with auto-renewal; the smallest period is six months, and after the minimum period has run the exclusion remains in place for a further seven years unless the customer asks GAMSTOP to remove it. GAMSTOP covers online sites and apps. Betting shops run a separate service and are not in scope.

Where a punter gets help

GamCare runs the National Gambling Helpline. GambleAware funds treatment and education. The NHS runs gambling clinics for harm cases that need clinical input. Gamblers Anonymous runs mutual-aid meetings across the country. None of those are bookmaker services, and none of them are profit-tied.

Bonuses, Free Bets and What They Cost to Clear

The arithmetic behind a turnover requirement

A wagering requirement is a multiple the operator applies to a bonus before the bonus and any winnings tied to it become withdrawable. Under the Commission’s January 2026 rules that multiple may be no greater than 10x. A £10 bonus at 10x requires £100 of qualifying bets before the bonus clears. Each qualifying bet must be at minimum odds the offer states, typically between 1/2 (1.50 decimal) and 3.0 (decimal). The minimum odds filter is a margin the customer is forced to bet into — at odds of 1/2 the implied probability is roughly 67%, and the bookmaker’s margin is several points on top.

What the bonus is worth depends on what your bets do. Under the simplest working: turnover is bonus base multiplied by wagering factor; bets needed is turnover divided by stake per bet; expected cost is turnover multiplied by the margin of the market you are betting on. Where turnover is £100 at a market margin of 5% the expected cost of clearing is £5 of value lost to margin, and the £10 bonus is worth £5 of expected value before any qualifying deposit or any minimum-odds constraint. The figure is a band, not a point estimate, and the result depends on the market you bet into.

What a free bet is worth on average

A free bet whose stake is not paid back with a win has a value that depends entirely on the odds you take. The arithmetic: free-bet value = free-bet amount × (odds − 1) ÷ odds × the payout share of the market you are betting on. A £10 free bet at 5/1 (6.00 decimal) on a market whose payout share is 95% returns £10 × (5 ÷ 6) × 0.95 = £7.92 of expected value before any minimum-odds filter; the same free bet at 1/2 (1.50 decimal) on the same market returns £10 × (0.5 ÷ 1.5) × 0.95 = £3.17. Longer odds make the free bet worth more, shorter odds waste it.

Why minimum odds exist and why they matter

A bookmaker’s minimum-odds rule for a free bet is a margin-avoidance tool. At odds of 1/5 the implied probability of winning is over 83%, and the bookmaker’s margin on a market where prices are clustered near certainty eats most of the free-bet value. The minimum odds the offer states — Unibet’s 2.0, Spreadex’s 1/2, BoyleSports’ acca insurance at 1/2 — represent a threshold above which the operator is willing to wear the cost. A punter who bets every free-bet token at minimum odds derives value from the offer but loses the upside; a punter who hunts for the longest single selection available on a market where the operator has under-priced an outsider extracts more value from the same token.

Where the bet stops being a bargain

Three failure modes turn a sign-up offer into a cost rather than a benefit. The first is using bonus money on a heavy-margin market — a market where the operator’s overround sits at 8% or higher, common in lower-league football and outright tournament betting. The second is leaving the free-bet tokens to expire. The third is using the offer as a route into bet-builder or acca bets that pile several legs together — the more legs, the higher the multiplied margin, and the lower the payout share for the same risk. None of those failures are advertised, and all of them are common.

The Ten Best Sign-Up Offers in Great Britain

The criteria the comparison rests on

Three matters decide a sign-up offer’s standing on this page. The first is the headline return in pounds sterling for a stated qualifying stake. The second is the operational cost of turning that return into withdrawable money: minimum odds, the qualifying-bet filter, the payment-method constraint, the expiry. The third is the second-order product — a sportsbook whose welcome offer works alongside live in-play, Bet Builder, price boosts, acca insurance and a clean interface lands a higher standing than one whose welcome offer sits on top of a thin product. The ten brands below are GB-licensed remote operators on the Commission’s public register, listed as a comparison rather than a recommendation.

Brand Licence holder and account Welcome offer on the operator’s own terms
LiveScore Bet LiveScore Betting and Gaming (Gibraltar) Limited · account 56859 Payment methods include debit cards (Visa, Mastercard), Apple Pay, PayPal, Pay by Bank (Open Banking) and Revolut Pay; the brand’s welcome terms are stated in its own offer
Vbet SCGO Limited · account 44662 £10 free bet when a new, verified customer stakes £10 or more on a first bet that loses
Betmaster BM Solutions GB Ltd · account 65699 Welcome offer is published in the operator’s terms and visible to a new customer at account opening
Geoff Banks GB Sports Advisors Limited · account 54095 App offers live in-play prices and ante-post prices on future events; welcome terms sit inside the app
Coral LC International Limited · account 54743 Bet £20, get £40 in free bets at minimum odds 2.0 (1/1); debit-card or instant-bank-transfer qualification; 7-day expiry
Smarkets (and SBK) Smarkets (Malta) Limited · account 39173 SBK sportsbook offer: £20 first deposit and a £20 bet at minimum odds 3.0 for £60 in free bets within 48 hours
bet365 Hillside (UK Sports) ENC · account 55148 Bet Builder+ combines markets from one event, available pre-match and in-play; Super Boosts, Winnings Boosts and daily Bet Boosts; welcome terms sit in the customer journey
Kwiff Eaton Gate Gaming Limited · account 44448 Supercharge feature can instantly boost odds from 2/1 to 20/1 on single or multi bets; Bet Builder+; welcome terms sit in the customer journey
BetGoodwin Goodwin Racing Limited · account 2927 Bet £10 and get £15 in free bets, split as a £5 sports bet, a £5 acca and a £5 Sub-Cover bet
NetBet Netbet Enterprises Limited · account 39170 Daily Boosts, Profit Boosts and free bet offers; Bet Builder with instant dynamic odds; welcome terms sit in the customer journey

LiveScore Bet

A mobile-first sportsbook running on a Gibraltar-incorporated licence, with the wider LiveScore group providing a deep fixture list and a strong in-play product. The Commission’s register lists LiveScore Betting and Gaming (Gibraltar) Limited under account 56859 as the remote general betting standard (real events) licensee. Payment methods are an unusual strength: Visa, Mastercard, Apple Pay, PayPal, Pay by Bank (Open Banking) and Revolut Pay, which gives a customer a wider choice of how to fund a qualifying deposit than the average sportsbook on this list. The welcome offer’s terms live on the operator’s own pages rather than in a press release, which means the headline pounds and the qualifying conditions sit side by side at sign-up. For the punter who wants payment flexibility alongside the welcome offer this is the strongest match in the table.

Vbet

A sportsbook originally better known outside the UK, whose GB offering runs through SCGO Limited under account 44662. The welcome offer is the simplest shape on this list: a new, verified customer stakes £10 or more on a first bet; if that bet loses, a £10 free bet is credited. There is no welcome offer on the win path. The “free” word in the marketing is therefore a free bet issued only on a loss — stake-not-returned on the free bet itself — and the qualifying bet must lose to trigger the offer at all. A punter who wants a binary welcome, with one outcome rewarding them and the other leaving them empty, reads this offer plainly. A punter who reads “free bet” as a guaranteed receipt on top of a win reads it wrongly.

Betmaster

A bookmaker whose UK footprint runs through BM Solutions GB Ltd, a Malta-registered company, on the Commission’s register under account 65699. The remote general betting standard (real events) licence is the standard sportsbook authorisation. The welcome offer’s headline is published in the operator’s own terms at account opening; the qualifying-bet conditions, the expiry and the minimum-odds filter sit in the customer journey rather than in a marketing email, which means they are visible before deposit. A brand to read in detail on its own terms page rather than to take from a third-party summary, because the headline that drives a sign-up is rarely the headline that settles a withdrawal.

Geoff Banks

A sportsbook app published by GB Sports Advisors Limited, the licensee behind account 54095 on the Commission’s register. The product is built around live in-play prices and ante-post markets on future events — the kind of betting a customer places weeks ahead of the football season or the next Cheltenham meeting. The welcome offer sits inside the app and is governed by the operator’s standard terms. For the punter whose calendar runs to the next Group 1 rather than to this weekend’s Premier League fixture this is the brand whose product describes the bettor.

Coral

A long-established British high-street and online bookmaker running under LC International Limited, a Ladbrokes Coral plc company, on the Commission’s register under account 54743. The UK sports welcome offer is the most generous headline on this list: bet £20 at minimum odds 2.0 (1/1) and receive £40 in free bets, credited within 7 days and expiring 7 days after issue. The catch sits in the qualifying deposit, which is restricted to a debit card or instant bank transfer — Apple Pay, Google Pay, Revolut Pay and the wallet options are visible on the cashier but do not qualify the welcome. Coral also runs a free daily Reward Shaker, an Odds Booster on hundreds of markets and free-to-play games including Football Super Series with a £10,000 jackpot. Two things are worth reading before staking: the qualifying payment-method restriction, and the seven-day expiry on a £40 token set you can lose in a weekend of mistimed bets.

Smarkets and SBK

A betting exchange and its sister sportsbook. Smarkets runs as a remote betting intermediary under Smarkets (Malta) Limited, account 39173, which is the exchange licence category and not the standard sportsbook one. SBK is the sportsbook brand inside the same group. SBK’s UK welcome offer is the most generous on this page: a £20 first deposit combined with a £20 bet at minimum odds 3.0 for £60 in free bets within 48 hours, with Cash Out, Bet Builder and live horse racing streams alongside. The minimum odds filter at 3.0 is far steeper than the 1/2 or 2.0 most brands apply, and the qualifying stake of £20 (rather than £10) is steeper too — it prices the offer out of the casual-punter bracket and into the brackets of punters who already have a betting strategy. For the matched-bettor or sharper punter whose qualifying bets are at higher prices by habit, this is the right offer.

bet365

The largest sportsbook on this list and one of the largest in the world, running under Hillside (UK Sports) ENC on the Commission’s register under account 55148. The product is the headline. Bet Builder+ combines markets from one event into a single bet, available pre-match and in-play; Super Boosts and daily Bet Boosts price up markets the operator has selected; Winnings Boosts apply to Bet Builders and selected singles. The welcome offer is published through the customer journey rather than in a static landing page, and the headline numbers vary by jurisdiction and by date. For the punter whose habit is a same-game acca or a price-boosted headline the brand is the right match. For the punter whose interest is the binary welcome offer against the smallest possible qualification, several other brands on this list land a larger return per pound staked.

Kwiff

A sportsbook built around the unpredictability of its product rather than around a deep fixture list. The “mystery bet” mechanic hands customers an instantly boosted price on the bet they placed — and the Kwiff Supercharge feature can move a single price from 2/1 to 20/1 in one tap, on singles or multis. Bet Builder and Bet Builder+ (combining Bet Builders from different games into a multi) are built into the product, with a guaranteed weekend acca boost on top. The license runs through Eaton Gate Gaming Limited under account 44448. Welcome terms are stated in the app. For the punter whose interest is the bet-builder mechanic and who treats the Supercharge as a feature rather than as marketing, this is the right match; for the punter whose interest is the cheapest qualification at the largest headline return, the £10 free bets at lower minimum odds on other brands are likely a better fit.

BetGoodwin

A horse-racing-focused brand with a sportsbook bolted on, running under Goodwin Racing Limited on the Commission’s register under account 2927. The welcome offer is a £15 split bet — a £5 sports bet, a £5 acca and a £5 Sub-Cover bet — for £10 staked. Each token has its own expiry and its own market restrictions, and the headline £15 should be read as £5 of three different products rather than as £15 of one. For a punter whose first bets are across formats, this is a useful shape; for the punter whose habits are singles or doubles, three £5 tokens are worth less than one £15 token at the same minimum odds.

NetBet

A sportsbook with a casino alongside it, running under Netbet Enterprises Limited on the Commission’s register under account 39170. Daily Boosts and Profit Boosts sit on the pricing side; Bet Builder with instant dynamic odds sits on the same-event-multi side. The licence is a standard remote general betting one and the company runs a casino product on a separate licence. Because the Commission’s January 2026 rules ban mixed-product promotions, a sportsbook-and-casino brand cannot offer a promotion that asks a customer to bet on football to qualify for casino spins. Where the welcome terms do invite casino play, those casino-specific terms run on the casino’s own licence and on its own wagering rules. For the punter whose interests stay on sports, the brand is a competent choice; for the punter who splits time between the sportsbook and the casino, the welcome terms should be read for which side they qualify on.

What a Wagering Requirement Looks Like in Practice

Working the arithmetic the Commission caps

The headline wagering multiple on a welcome offer in Great Britain is capped at 10x from 19 January 2026. A £10 bonus at 10x requires £100 of qualifying turnover before the bonus and any winnings tied to it become withdrawable. The qualifying turnover is the sum of stake across the qualifying bets; at a £10 stake per bet that is 10 qualifying bets. At a £5 stake it is 20. Each qualifying bet must clear the operator’s minimum-odds filter, normally somewhere between 1/2 and 2.0.

The expected cost of clearing the bonus is the turnover multiplied by the margin of the market you are betting on. The margin is the share of every pound staked the bookmaker keeps across all outcomes of a market — for a Premier League match priced at the bookmaker’s standard 5% margin, £100 of qualifying bets costs £5 of margin in expectation. A £10 bonus on a £100 turnover at 5% margin is worth £5 of expected value before any minimum-odds constraint is applied. The value is a band rather than a point. The margin rises as you bet into smaller leagues and as you build accumulators, and either change collapses the expected value below the bonus headline.

The same calculation on the free-bet path

A free-bet whose stake is not paid back is worth the free-bet amount multiplied by (odds − 1) divided by odds, multiplied by the payout share of the market you bet on. A £10 free bet at 5/1 (6.00 decimal) on a market at 95% payout share returns £10 × (5 ÷ 6) × 0.95 = £7.92 of expected value. A £10 free bet at 1/2 (1.50 decimal) on the same market returns £10 × (0.5 ÷ 1.5) × 0.95 = £3.17. The longer the odds, the more value the free bet holds; the shorter the odds, the more you leave on the table.

Why the headline number and the cleared value are not the same

A £40 free-bet token is worth £40 only if you back a winner at minimum odds, with the stake not returned. The expected value of that token under any normal betting strategy is closer to the formula above. The headline number is a ceiling — the maximum you could realise on a single winning bet — and the cleared value is what the same token is worth on average. A reader who only reads the headline over-estimates the offer; a reader who reads the formula and uses it on the offers on this list sees each one more sharply. Where the same calculation runs on the bonus-turnover path, the £10 headline at 10x turnover on a 5% margin costs £5 of expected value against the £10 bonus, before any minimum-odds constraint and before any qualifying deposit. The bonus pays back in expectation only on the bets where the margin is light.

How the 10x cap changes the comparison

Before 19 January 2026, offers in this market were allowed to run at 50x, 30x or even higher wagering multiples. The cap is the sharpest regulatory shift on this page and the one that has changed which offers matter. Every bookmaker whose welcome offer attached a bonus rather than a free bet has had to scale the offer’s mechanics down — either by reducing the wagering multiple to 10x, by replacing the bonus with free bets (which are not in scope of the cap), or by making the offer a smaller bonus. Several offers on this list run on the free-bet path for exactly this reason: free bets have no wagering requirement, and the cap does not bite them. The brand names have not changed; the structure of the offer underneath them has.

Reading the Bonus Rules Before You Deposit

The eight lines you should never skip

The first is the qualifying stake and the minimum odds. The second is the qualifying payment method: a debit card or instant bank transfer is the most common restriction, and a wallet-funded qualifying deposit silently disqualifies the welcome. The third is the expiry on the free bets — seven days is standard but a few brands run shorter. The fourth is the minimum odds that apply when you use a free bet token: tokens used below the floor give no value to the customer. The fifth is the maximum winnings cap or stake cap on bonus-funded bets. The sixth is the wagering multiple and the qualifying turnover on the bonus (if a bonus is involved). The seventh is the markets that do not count toward the qualification — virtual events, casino, sometimes eSports. The eighth is the rule on what happens to bonus money when you withdraw: most operators void the bonus balance at the moment a withdrawal is requested, killing any unfinished turnover.

The promotional calendar that sits on top

Every bookmaker on this list runs ongoing promotions beyond the welcome offer. BoyleSports offers acca insurance and acca loyalty — acca insurance refunds a stake as a free bet if one leg lets you down, capped at a £20 refund on a £5 minimum stake at combined odds of 1/2 or greater with bets placed and settled on the same day; acca loyalty rewards an additional free bet on winning accas of five legs or more at combined odds of 3/1 or greater, expiring after seven days. William Hill’s Football Acca Boost covers accas of two or more legs at each selection of 1/5 or greater, ranging from 3% on a double to 200% on twenty legs, capped at a £10,000 maximum boost per online bet, in force until 30 May 2027. Coral runs a free daily Reward Shaker, an Odds Booster on hundreds of markets, and Football Super Series as a free-to-play game. Unibet runs daily Uniboosts, live streaming through Unibet TV, in-play betting, Best Odds Guaranteed on horse racing and Cash Out on thousands of markets. Each of these sits outside the welcome offer and each of them carries its own qualifying terms.

Frequently Asked Questions

How do I sign up to a betting site?

Open the operator’s site or app, click join, and supply a name, address, date of birth and contact details; the operator runs identity verification before the first deposit can be made and the welcome offer can be claimed. Make a qualifying deposit by a payment method the welcome offer accepts — most restrict the qualification to a debit card or instant bank transfer — then place the qualifying bet at the minimum odds the offer states. Free bets are credited once the qualifying bet settles.

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

Ten times the bonus. The Commission’s bonus rules in force from 19 January 2026 cap the wagering multiple on bonuses at 10x — a £10 bonus at 10x requires £100 of qualifying bets before the bonus and any winnings tied to it become withdrawable. Whether the cap applies to a free bet with no wagering condition is not established. Mixed-product promotions, where a customer must gamble on two or more product categories to qualify, are banned outright.

What do minimum odds and the wagering requirement mean?

Minimum odds gate which bets qualify. A minimum-odds filter of 1/2 (1.50 decimal) means a qualifying bet must return at least 1.5 times the stake if it wins, with shorter odds not counting toward the bonus or the free-bet trigger. The wagering requirement on a bonus is a turnover multiple: a £10 bonus at 10x means £100 of qualifying bets must settle before the bonus clears. Minimum odds and the wagering requirement together stop punters using the offer on short-odds favourites and clearing it in one bet.

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

Because the free bet is a stake the operator has underwritten. A £10 free bet at 3/1 (4.00 decimal) returns £40 of profit on a win, not £50 of profit plus the £10 stake back — the operator has given the stake, and giving it back on top would be a 25% bump on the offer’s headline cost. The cost falls on the customer only when the free bet loses; the upside, on a win, is the profit alone. That is why the same free bet at long odds is worth more to you than the same free bet at short odds: longer odds pay more profit per pound of stake-not-returned.

Can a sports bet be tied to a casino bonus under the Commission’s rules?

No. The 19 January 2026 rules ban mixed-product promotions outright — an offer that asks a customer to bet on one product category to qualify for a bonus on another is no longer permitted at a GB-licensed site. A sportsbook-and-casino brand can still offer separate welcome offers under each product’s own terms, but no offer is allowed to link the two. A separate casino welcome offer on a casino-licensed site is unaffected by the rule.

How can I check that a bookmaker holds a Gambling Commission licence?

Search the Commission’s public register by business name, trading name, domain or account number; the register lists each licensee, the categories of licence they hold and the account number against which the licence runs. The trading name on the site (Coral, bet365, Sky Bet) and the registered licensee name on the register (LC International Limited, Hillside (UK Sports) ENC) are often different companies, and the register reconciles them. Holding a GB licence means the operator is also on GAMSTOP. Unlicensed offshore sites do not appear on the register, and they offer none of the protections the licence confers.

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