What existing customer betting offers are actually worth in the UK

Updated October 2026

Licensed

Available in US

Fast payouts

18+ Only

The welcome bonus gets the marketing spend. What a bookmaker does for the punter who has already signed up, deposited, and settled their first qualifying bet is where the long-term value either shows up or quietly disappears. This page looks at exactly that — the offers aimed at customers who are already on the books, what each one demands in return, and how the Gambling Commission’s promotion rules of 19 January 2026 have reshaped the playing field.

Currency stamp: data current as of 27 October 2026, verified against the Gambling Commission’s public register of remote licence holders.

The Landscape of Existing Customer Offers in Britain

An “existing customer offer” is anything a bookmaker sends to someone who has already passed verification and made their first deposit. Welcome bonuses get the press; the daily or weekly reload, the acca insurance, the price boost, the free-to-play game with a cash prize, and the loyalty points scheme are what fill the inbox afterwards. They are the reason a punter stays with one operator rather than moving to the next promotion.

The marketing leans hard on language that flatters. “Risk-free” usually means a free bet whose stake is not returned. “Boosted odds” usually means a one-off price improvement with stake limits attached. “Free bet” usually means credit that expires in seven days and cannot be withdrawn as cash. The page sits inside the gap between the headline and what the small print actually hands over.

Three shifts have changed the market since the start of 2026. The Gambling Commission’s promotion rules cap wagering requirements on bonuses at 10x, killing the 50x monsters that used to dominate the small print. Mixed-product offers — the “bet on football, get free spins” bundle — are banned. And the advertising rules around who can appear in a gambling ad (no one who is or seems to be under 25) sit beside the existing whistle-to-whistle TV blackout. The net effect: a smaller, more honest menu than the one that existed in 2024.

What counts as an existing customer offer

Anything sent after the first qualifying bet has settled. The most common types:

• Free bet — credit issued to the account, usually with a 7-day expiry and a minimum odds floor of 1/2 or 1.5
• Price boost — a one-off enhancement on a named selection, often with a maximum stake cap
• Acca insurance — a refund as a free bet if one leg of an accumulator lets you down, almost always with conditions attached
• Acca boost — a percentage uplift on winnings based on the number of legs, paid in cash
• Loyalty free bet — credit issued for hitting a weekly or monthly betting volume
• Free-to-play predictor game — no stake required, a cash or free-bet prize pool
• Money-back as cash — rarer under the new rules, but still appears on specific events

Each of these carries a different cost-to-the-reader profile. A free bet returned as credit costs the bookmaker nothing if it loses. An acca insurance refund paid as a free bet costs the operator the original stake only when the bet wins but one leg fails. A cash boost on a winning acca costs the operator real money on every winning bet, which is why the percentage is much lower than the headline might suggest.

What the Gambling Act 2005 Actually Requires

The framework is the Gambling Act 2005, administered by the Gambling Commission — a non-departmental public body sponsored by the Department for Culture, Media and Sport. The Act covers Great Britain (England, Scotland and Wales). Northern Ireland runs on different, older legislation and is outside the Commission’s licensing perimeter; an operator licensed for Great Britain is not, by that fact, licensed for Northern Ireland, and a GB licence never regulates a bet placed there.

Since the Gambling (Licensing and Advertising) Act 2014, any operator whose remote facilities are used in Great Britain needs a Commission licence wherever the company is based. Sections 33 and 36 of the 2005 Act, as amended, are the teeth: providing gambling facilities in Great Britain without the licence the Act requires is a criminal offence aimed at the operator — up to 51 weeks’ imprisonment on summary conviction, a fine up to level 5, or both (six months in Scotland). The offence is aimed at the operator, not the customer.

The licence categories that matter here

Five categories cover everything a sports punter meets online:

• Remote general betting standard (real events) — the standard online sportsbook licence, held by every brand reviewed on this page
• Remote general betting standard (virtual events) — covers computer-simulated events, a separate category
• Remote general betting limited — a smaller perimeter for lower-volume operators
• Remote pool betting — Tote-style pool products on horse and dog racing
• Remote betting intermediary — the licence for betting exchanges such as Smarkets

The Commission’s public register is the whole test of whether a brand holds a licence. It can be searched by business name, trading name, domain, or account number. Domain proves nothing — licensed operators use .com as well as .co.uk. The check is the register entry itself, against the legal entity behind the brand.

The promotion rules of 19 January 2026

Two changes reshaped the offers landscape at the start of the year. First, wagering requirements on bonuses are now capped at 10x: a £10 bonus at 50x used to demand £500 of qualifying bets; under the cap, the same £10 bonus can require no more than £100 of qualifying bets. Second, mixed-product promotions are banned — any offer that ties betting to casino, bingo, or lottery play in one bundle is no longer permitted. Whether the cap applies to a free bet with no wagering condition at all, and whether any cap applies to the money value of a bonus, are points the published rules do not settle.

The Commission’s advertising rules run through the CAP Code (non-broadcast) and the BCAP Code (broadcast), enforced by the ASA. CAP Code section 16 sets the social responsibility bar — marketing must not be of strong appeal to under-18s, and no one who is or seems to be under 25 may be featured gambling or play a significant role in an advertisement. The rule is about who appears in the ad, not who may place a bet.

The whistle-to-whistle TV blackout has been in place since 1 August 2019: betting advertisements do not run on television from five minutes before a live sporting event broadcast to five minutes after it, before the 9pm watershed. Horse and greyhound racing are excluded. It is an industry code adopted by the broadcasters, not a statute.

Identity, Age, and the Reality of Playing at a Licensed Site

Identity verification is not optional. Since 7 May 2019, every GB-licensed operator verifies a customer’s name, address, and date of birth before the first deposit can be made or the first bet placed — including a bet funded by a free bet or bonus. The minimum age is 18. There is no anonymous play at a licensed site.

The financial vulnerability check sits on top of that. Since 28 February 2025, the check (LCCP condition 3.4.4, in force in its current form since 30 August 2024) applies once a customer’s net deposits exceed £150 in a rolling 30-day window. It is a public-record check — looking at indicators such as bankruptcy or county court judgments — not an income check and not a credit reference check. Financial risk assessments (the deeper “affordability checks” of the press) are announced, staged, with no start date.

Credit cards are banned for gambling in Great Britain since 14 April 2020 (LCCP condition 6.1.2), including credit-card-funded payments through an e-wallet. Debit cards and bank-based payments are not covered by that ban. Whether a state list of permitted payment methods exists, whether cryptocurrency deposits are allowed at licensed operators, and whether a British named-account rule applies, are points the published framework does not settle — payments are described qualitatively and from each operator’s own terms.

Tax

The punter 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, while remote bets on UK horse racing, bets on self-service betting terminals in licensed premises, pool betting, and in-person betting stay at 15%. Spread betting has its own rates (3% financial, 10% other). Until 1 April 2027 the remote rate stays at 15%. Whether operators pass duty on through odds is not established, and the player is not charged duty at the betting slip.

Responsible Gambling Tools and Where to Get Help

GAMSTOP is the national multi-operator online self-exclusion scheme and a mandatory licence condition for online operators since 31 March 2020. Self-exclusion periods are six months, one year, five years, or five years with auto-renewal. After the minimum period the exclusion stays in place for a further seven years unless the customer asks GAMSTOP to remove it. GAMSTOP covers online sites and apps; the high-street betting shops run their own self-exclusion scheme.

Deposit limits (RTS 12): operators must offer a gross deposit limit on a fixed time frame. The first changes applied on 31 October 2025; a second phase was postponed to 30 September 2026. There is no state-set deposit or loss ceiling for betting — the limits are the customer’s choice. Loss limits and wagering limits sit alongside the deposit limit as standard safer-gambling tools.

Help is available through GamCare (which runs the National Gambling Helpline), GambleAware, the NHS gambling clinics network, and Gamblers Anonymous. GamCare’s number is the first port of call; the NHS clinics offer face-to-face treatment in several regions; Gamblers Anonymous runs peer-support meetings. None of them is run by the bookmaker.

A point worth stating plainly: an offshore, unlicensed site offers none of this. No GAMSTOP coverage. No Commission complaints route. No approved dispute-resolution body. No British consumer redress if funds are withheld. The 10x bonus cap does not bind them. The £150 vulnerability check does not bind them. Saying “unlicensed” is shorthand for “no British consumer protection at all” — it is not the same as “easier to use”.

Bonuses and Free Bets: What the Headline Really Means

Every existing customer offer sits inside a small-print envelope. The shape of that envelope is what decides what the offer is actually worth.

A free bet is a credit. It expires, it carries a minimum-odds floor, and the stake is usually not returned with the winnings. A £10 free bet at odds of 3.0 returns £30 in profit, not £40. The free bet is not the punter’s money and the bookmaker is not paying it back.

An acca insurance is a refund as a free bet if one leg lets you down. The free bet that comes back carries the same expiry and minimum-odds conditions as a standard free bet — and the qualifying bet must usually be placed and settled on the same day.

A price boost is a one-off enhancement on a named selection, often with a maximum stake. The stake cap on the boosted price is usually far below the cap on the un-boosted price, so the boost moves the headline number without moving the actual ceiling on what a punter can win from it.

An acca boost is paid in cash on winning accumulators, with a percentage that rises with the number of legs. From 3% on a double up to 200% on twenty or more legs is the kind of ladder William Hill publishes for football accas, with a £10,000 maximum boost per online bet.

A money-back-as-cash refund is rarer under the new rules. When it appears, it usually applies to a specific event (a named bore draw, a specific horse race) and not to a general promotion.

The 10x cap and what it costs to clear a bonus

The calculation that matters is straightforward. Under the 19 January 2026 cap, a £10 bonus at 10x needs £100 of qualifying bets. At a stake of £10 per bet, that is ten bets. Each bet must be at or above the minimum odds the operator names — minimum odds of 1/2 (1.50) is the common floor for free-bet clearing, but some offers require minimum combined odds on accumulators, and a stake placed below the minimum does not count.

The honest band for clearing a £10 bonus under the cap is ten to twenty qualifying bets, depending on whether the minimum odds are met on the first attempt or whether a bet is voided and re-placed. Where the same scenario is run twice, both must give the same result.

Expected cost comes from the market margin. Required turnover of £100 at a market margin of, say, 5% gives an expected cost of £5. That is what clearing the offer costs on average. The £10 bonus has expected value above £5 only if the bonus payout carries no further condition. Most do.

Why the offer is being evaluated

The mechanism that the new promotion rules set up is simple: less of the punter’s money tied up in clearing requirements, no cross-product bundles to mislead, and a clearer separation between betting and casino. The marketing copy has not caught up. “Risk-free” still means a free bet. “Best odds” still means the headline price on a boosted selection. “100% bonus” still names a multiplier rather than a guarantee.

The arithmetic the page carries through the rest of this article is the average over many bets under stated assumptions. It is not a guaranteed outcome for any single punter. It promises no win, no payout, and no return.

The Ten UK Bookmakers Compared

Every brand reviewed below holds a Gambling Commission remote licence for Great Britain, verified against the Commission’s public register. The order is the order of review, not a ranking.

BetTom — the matched-percentage small print

BetTom’s headline is “50% back as a free bet up to £50”, with a matching 50% back as free slot funds for casino play. The full terms govern both halves, and a punter treating one half in isolation reads only half the agreement. The Commission’s mixed-product promotion rules from 19 January 2026 restrict how the two halves can be bundled for new customers; the existing customer position is the cleaner read.

The brand is a smaller name than the major high-street operators. That cuts both ways: a smaller bookmaker often runs tighter margins to win volume, and a smaller bookmaker often runs a thinner market depth. Verification is standard for any GB-licensed operator, so the registration path looks the same as any other brand on this list.

The judgement: a worthwhile look for a punter who already bets with BetTom and reads the small print, less compelling for someone choosing where to open a fresh account.

Coral — the daily free-to-play machine

Coral runs a Reward Shaker that a customer can claim once per day, an Odds Booster on hundreds of markets, and a Football Super Series free-to-play game with a £10,000 jackpot. Three offers a day, every day, all of them on the existing customer side of the fence.

The licence is held by LC International Limited — the same entity that runs Ladbrokes, which matters because it means Coral and Ladbrokes are not independent operators for any regulatory purpose. Welcome offers at Coral require a debit card or an instant bank transfer to qualify; the site lists Apple Pay, Visa, Visa Electron, Mastercard, Revolut Pay, Google Pay, TrueLayer, Earthport and Trustly among its payment options.

The judgement: a strong daily-engagement brand for the punter who logs in most days and uses the Shaker. Less compelling for the once-a-week punter, who lets the daily offers expire.

Dabble — the social-feed betting angle

Dabble’s existing customer position is built around its social-feed format: a customer follows other punters, copies their bets, and earns free bets through the platform’s mechanics. The headline “Bet £10, Get £10 in Free Bets” is a sign-up line; the existing-customer side of the business is the feed itself.

Free bets expire in 7 days. The stake is not returned. Minimum odds apply. That last phrase is the one to read carefully — a free bet whose minimum odds floor sits at 6/4 is a very different beast from a free bet whose floor sits at evens.

The judgement: distinctive if the social-feed format appeals, ordinary on the standard free-bet mechanics. A punter who likes a flat staking plan and follows tipsters inside the platform gets the most out of it.

Sky Bet — the 5p entry and the three £10 tokens

Sky Bet’s sign-up offer hands a new customer three £10 free bet tokens for a first single or each-way bet of at least 5p at odds of 1/1 or greater. The 5p entry threshold is the headline — no other major brand asks for a qualifying stake that small. The three-token split is the small print: a punter wanting a single £30 free bet does not get one.

The operator is SBG Sports Limited, the same parent that runs other Sky-branded betting products. Existing customer offers sit on the Sky Bet club side, with regular free bet clubs for settled stakes on football and racing.

The judgement: a clean sign-up offer for the small-stake punter who wants to try a major brand without risking much, with an existing-customer pipeline that rewards settled volume.

Kalooki Sportsbook — instant withdrawals and the BOG rail

Kalooki Sportsbook is operated by Kalooki Sports Book Ltd (company number 12938274) and is a GAMSTOP member. The brand advertises instant withdrawals by bank transfer within minutes, Best Odds Guaranteed on UK and Irish horse racing, in-play betting, daily boosts and extra place races. That is the menu.

The payments angle is the standout: instant withdrawals by bank transfer set a different expectation from the “1–3 working days” wording that dominates the rest of the market. Whether the bank side of that promise delivers as quickly as the operator’s own end is not in the small print.

The judgement: a useful brand for the punter whose main complaint about other bookmakers is payout speed, with a racing-led existing-customer offer stack.

Sporting Index — fixed odds plus spread bets in one bundle

Sporting Index’s existing customer offer is a bundle: a £10 fixed-odds bet at minimum odds of 1/2 unlocks three £10 fixed-odds free bets, three £5 Total Goals spread bets, three £5 Winning Favourites spread bets and a £1 Race Index spread bet. The qualifying bet cannot be placed in play or cashed out early.

That qualifier is the one to read carefully. Spread betting carries a different risk profile from fixed odds — losses can exceed the stake — and a punter treating the bundle as one fixed-odds promotion misses half of what is on the table.

The judgement: a strong bundle for the punter who already uses both fixed odds and spread markets. A fixed-odds-only punter takes only the headlines and skips the spread legs.

Copybet — the acca cash boost and the daily profit boost

Copybet’s two existing-customer headlines are the Acca Booster (up to 100% cash bonus on accas of 3+ selections) and the Daily Profit Boost (up to 15%). The first is paid in cash on winning accas, with a percentage that rises with the number of legs; the second is a smaller daily uplift on settled bets.

A 100% cash boost on a winning acca is the rare offer that costs the bookmaker real money on every winning bet, which is why the percentage is much lower than the marketing-friendly headline might suggest for shorter accumulators. The Daily Profit Boost’s 15% ceiling is the small-print reality.

The judgement: an acca-led brand for the punter whose staking plan is built around accumulators. Less compelling for the singles-and-each-way punter.

QuinnBet — the 7-day expiry and the odds ceiling

QuinnBet’s free bets are valid for 7 days from credit, usable on any market at odds of 1/2 (1.5) or greater, with a maximum odds ceiling of 50/1. Straight accumulators are allowed; Trixies, Patents and Yankees are not. The 50/1 ceiling is the small print that a casual reader misses — a free bet placed at odds of 100/1 does not count.

The licence is held by QuinnBet (Gibraltar) Limited. That is a different legal-entity arrangement from a UK-incorporated holder, and it does not affect the licence status in Great Britain (the Commission’s licence is what governs play here), but it is the entity on the register.

The judgement: a clean offer for the punter whose selections sit inside the 50/1 ceiling and who bets singles or straight accumulators. Less compelling for system-bet users.

10bet — the headline 100% with daily free bets

10bet advertises a 100% up to £50 betting bonus for UK sign-ups, with daily free bets and free spins as separate lines. The 100% is the headline; the daily free bets and free spins sit underneath it as the existing-customer pipeline.

Under the 19 January 2026 cap, a 100% bonus up to £50 at 10x wagering needs £500 of qualifying bets at stake of £10 per bet — fifty qualifying bets. That is the calculation the cap makes straightforward and the small print still manages to obscure.

The judgement: a competitive welcome line for the punter who will clear the bonus in full, with a daily-engagement pipeline underneath. The clear-the-bonus-in-full condition is the one the marketing copy does not state.

Smarkets and SBK — the exchange angle

Smarkets runs the SBK sportsbook as a separate product. The sportsbook welcome is £60 in free bets for a £20 first deposit and a £20 bet at minimum odds of 3.0, issued within 48 hours, with Cash Out, Bet Builder and live horse racing streams.

Smarkets itself is a betting exchange — the licence category is remote betting intermediary, which is the regulator’s term for an exchange — and a punter on the exchange side pays commission rather than taking free bets. The sportsbook welcome sits on top of that, which is the part most relevant to this page.

The judgement: an exchange-led brand for the punter who wants both back-and-lay and sportsbook in one account. The sportsbook welcome is competitive for the £20 qualifying stake.

The Calculation: What Clearing a Bonus Actually Costs

This calculation illustrates the standard terms for a typical bonus offer. The bonus is £10, the wagering multiple is 10x (the cap from 19 January 2026), the minimum odds are 1/2 (1.50), and the expiry sits at 7 days. Under the cap, the required turnover is £100; at a stake of £10 per bet, ten qualifying bets clear the bonus.

The honest band is ten to twenty qualifying bets. The lower bound is ten — one qualifying bet per £10 stake at the minimum stake floor. The upper bound of twenty reflects two practical frictions: the 7-day expiry means a punter who places a bet that voids (a non-runner, a Rule 4 deduction, a postponed event) loses a day on the clock, and the minimum-odds rule means a bet placed below 1/2 does not count toward turnover. Two voided bets and two sub-floor bets in a week double the qualifying-bet count from ten to twenty without the punter doing anything wrong.

Expected cost comes from the market margin. Required turnover of £100 at a market margin of, say, 5% gives an expected cost of £5 — what clearing the offer costs on average. The £10 bonus has positive expected value only if the bonus payout carries no further condition. Most do.

The assumption that drives the band: only the bonus amount is wagered, no additional deposits are made toward clearing, every qualifying bet is at or above the minimum odds, and the 7-day window is not exhausted by voided bets. Relax any of those and the band moves upward.

What the Comparison Found

The honest read of the ten brands is that no one of them dominates. Coral and Sky Bet offer the strongest daily engagement. BetTom and 10bet offer the most generous sign-up lines under the cap. QuinnBet, Dabble and Sporting Index offer clean small print. Kalooki offers the fastest withdrawals. Copybet offers the strongest acca-led existing customer line. Smarkets offers the exchange angle.

The arithmetic is the same shape on every one of them: a bonus has expected value only if the bonus payout carries no further condition, and the expected cost of clearing the bonus is the turnover times the market margin. Under the 10x cap, the worst-case turnover is now bounded — a £50 bonus at the cap is £500 of qualifying bets, fifty bets at £10 — and that bound is the part the marketing copy still obscures.

For the punter choosing where to keep their money, the daily-engagement offers (Coral, Sky Bet) suit the once-a-day punter. The acca-led offers (Copybet, William Hill-style ladders, BoyleSports) suit the accumulator punter. The race-led offers (Kalooki, plus Best Odds Guaranteed across several brands) suit the horse racing punter. The exchange angle (Smarkets, Betfair) suits the lay punter. The matched-percentage offers (BetTom, 10bet) suit the bonus-clearer who reads the small print in full.

The headline that best describes the state of the market is that the cap has tightened the small print, the marketing has not caught up, and the punter’s edge sits in reading what the offer costs rather than what it pays.

Frequently Asked Questions

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

Since 19 January 2026, the Gambling Commission’s promotion rules cap wagering requirements on bonuses at 10x — so a £10 bonus can require no more than £100 of qualifying bets, and a £50 bonus no more than £500. Whether the cap applies to a free bet with no wagering condition is not established in the published rules. A punter reading “ten new” gets the 10x cap; a punter reading “no wagering” reads an offer the rules do not yet classify.

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

Minimum odds are the floor below which a qualifying bet does not count toward the bonus turnover — minimum odds of 1/2 (1.50) is the common floor for free-bet clearing. The wagering requirement is the multiple of the bonus that must be turned over in qualifying bets before the bonus (or its winnings) becomes withdrawable. A £10 bonus with a 10x wagering requirement and minimum odds of 1/2 needs £100 of qualifying bets, each at odds of 1/2 or greater, before the bonus clears.

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

A free bet is credit, not cash. The bookmaker is paying out the winnings on a stake it never actually held — so the stake is deducted from the return. A £10 free bet at odds of 3.0 returns £20 in profit, not £30. That is what “stake not returned” means in the small print, and it is the rule the marketing copy of “free bet” usually skips.

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

Since 19 January 2026, mixed-product promotions are banned. An offer that requires gambling on two or more product types — for example “bet on football to get free spins” — is no longer permitted. Separate offers on each product remain permitted; the bundling is what the rules ban. A bookmaker running a casino welcome and a sports welcome as two standalone offers stays on the right side of the rule; a bookmaker tying them together does not.

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

The Commission’s public register can be searched by business name, trading name, domain, or account number. It is the whole test of whether a brand holds a licence — the domain extension (.com or .co.uk) proves nothing on its own. Every operator reviewed on this page holds an entry on that register, against the named licence holder for that brand. The check is the register entry itself, not a footer link on the brand’s homepage.

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

The player pays no tax on betting winnings in Great Britain — General Betting Duty is the operator’s tax on gross profits, currently 15% (rising to 25% on remote bets from 1 April 2027, with UK horse racing, self-service terminal bets, pool betting and in-person betting staying at 15%). Spread betting has its own rates (3% financial, 10% other). Whether the operator passes duty on through odds is not established; the player is not charged duty at the betting slip. A professional gambler asks HMRC directly, because the personal-tax position is a different question from the duty.

Content created by the «Grey Hound» team