Gambling Commission rules that took effect on 19 December 2024 reset what a welcome offer can ask of you. An operator holding a British licence cannot set wagering requirements above 10x the value of a bonus, and you can take the bonus plus any winnings it has produced before you finish the playthrough. Every sign-up promotion on the UK market now runs on that arithmetic.
Operators sell the headline figure. A £100 bonus reads as free money on the landing page, and the small print sits further down. Three things decide whether an offer pays you back: the playthrough attached to it, the games that count toward clearing it, and the ceiling the operator places on what you convert into cash.
Ten times £100 means £1,000 of wagering before bonus money turns into withdrawable cash. Operators pick which games count. Most UK sites weigh slots at 100 per cent, then weigh table games and live dealer tables at between 10 and 20 per cent. A £10 bet on roulette at 10 per cent weighting removes £1 from your playthrough target, so clearing a £1,000 requirement on roulette takes £10,000 of stakes.
Stake limits sit alongside the playthrough. A £5 maximum bet while a bonus is active is standard, and breaking it voids the bonus along with everything you won using it. Thirty days counts as a generous time limit, seven days shows up on plenty of sites, and the operator counts the days from the moment you claim rather than the moment you first spin.
Operators also have to hold bonus funds apart from your deposit, and the Commission bars them from making you wager your own money to unlock a bonus. You keep every penny you deposited, even when a playthrough target goes unmet.
Run the numbers on a standard offer. You claim £100 at 10x on slots with 96 per cent RTP, full game weighting, and a month to finish. The maths lands at £1,000 of turnover and £40 of expected loss across the playthrough.
£100 bonus, 10x playthrough, 96% RTP slots
Turnover needed: £1,000. Expected loss at a 4% house edge: £40. Expected value left in the bonus: £60.
That £40 is the price of the offer. It holds if you finish inside the time limit, stay under the maximum stake, and stick to games at full weighting. Break one condition and the cost climbs.
Game choice shapes the bill as much as the terms do. A slot at 96 per cent RTP costs you about 4 per cent of turnover in expectation, while a game at 94 per cent costs closer to 6 per cent. That turns a £1,000 playthrough into £60 of expected loss rather than £40.
Working out the bonus value after wagering is the step operators leave off the landing page. A £100 headline that costs £40 in expected losses is a £60 proposition, and that gap widens on games returning less than their advertised RTP.
Operators cap what you convert from bonus play, and £100 or £200 ceilings are common. A strong run to £700 on a 10x playthrough can land in your balance as £200, with the rest removed at the point the bonus converts.
Weighting and caps explain what pushes bonus costs up beyond the playthrough figure. A 10x requirement on a game weighted at 10 per cent behaves like 100x for clearing purposes, and a £200 cap can leave you with a fraction of a good session's winnings.
Free spins carry their own arithmetic. A bundle of 50 spins at 10p each holds £5 of staked value, and the winnings can land under a conversion cap of their own. Treat a spin bundle as a taste of a game rather than a route to a balance.
Deposit matches, reload bonuses and cashback price out the same way. A 50 per cent match up to £50 hands you £25 on a £50 deposit, and the playthrough applies to that £25 rather than to the deposit. A smaller bonus means a smaller wagering target and a smaller expected loss.
Cashback works on different terms. You get a slice of net losses back as real money with no playthrough attached, and the value depends on how much you stake rather than on the size of any win.
When a bonus dispute arises, the operator's complaints team handles it first. Take the matter to the Alternative Dispute Resolution scheme named in the terms if eight weeks pass without a resolution, and keep a transcript of any live chat that supports your case.
The ceiling and the weighting separate offers that look identical on a comparison page. Take two £100 bonuses, both at 10x, and follow each through to a withdrawal.
| Term | Offer A | Offer B |
|---|---|---|
| Playthrough | 10x | 10x |
| Slot weighting | 100% | 100% |
| Table game weighting | 20% | 10% |
| Conversion cap | £200 | £100 |
| Time limit | 30 days | 14 days |
Offer A gives you twice the room to convert winnings and twice the time to clear the target. Play the same £1,000 of slot spins at both sites and you keep a larger share of what you win at Offer A.
Every operator worth your deposit holds a licence from the Gambling Commission, and the licence number sits in the footer of the site. Check it against the Commission's public register, which lists the trading name, the licence status, and any regulatory action the business has faced.
The Platin Casino reviews on Trustpilot give you a quicker read on how customers rate cashout speed, bonus disputes, and support responses than any marketing page manages. Sort by most recent, then read the one and two star entries first, where customers post payout complaints long before they reach a regulator.
Two details matter more than the size of the offer: how long a withdrawal takes once your balance clears, and whether the operator lets you pull bonus funds out before the playthrough ends. Both answers sit on the bonus terms page.
UK deposits move through debit cards, PayPal, Apple Pay and Google Pay, open banking transfers through services such as Trustly, and Paysafecard for smaller top-ups. Credit cards stopped working for gambling deposits in April 2020, when the Commission banned them across the market.
Withdrawal speed splits by method. Open banking transfers and e-wallets land within hours at most sites, and card withdrawals take one to three working days. The hold that catches you out is the pending period, which runs from several hours to three days before the operator processes anything.
Verification slows the first withdrawal at any site. Upload your ID and proof of address before you claim a bonus, since an operator cannot release funds until those checks clear, and the pending period only starts after they finish.
Taking money out before you finish the playthrough is allowed, and it changes the cost you carry per bonus, since money you withdraw before the playthrough ends never meets the house edge. Cash out at £150 with the target half cleared and you keep the full £150.
Bonuses work as a small discount on play. Set a deposit limit before you claim an offer, and treat the bonus as a discount on the play you planned rather than a reason to play more. A reality check every 30 minutes, and a time-out when a session stretches past your usual, keeps the spend where you set it.
GamCare and BeGambleAware run free support lines and live chat for anyone who wants to talk through their gambling. GamStop blocks you from every UKGC-licensed site for a period you set, from six months to five years. Register before you claim an offer you cannot clear at the stakes you normally play.
The 10x cap gives you a floor to work from. A £100 bonus on 96 per cent slots costs around £40 in expected losses, and the weighting, the maximum stake rule and the conversion ceiling can push that figure higher. Read the terms and price the offer before you claim, then claim the ones where you come out ahead after the playthrough.
