The best casino bonuses & welcome offers in the UK

Compare the latest online casino welcome offers and quickly find the best ones for you.

We review the latest UK casinos each month to highlight the top 4 deposit bonuses worth claiming right now. Scroll down to learn about the terms, gaming libraries, ongoing offers, and average withdrawal times of these online gambling sites.

1

Expert rating

4.9/5

Grand Ivy - Best single deposit bonus

Bonus

150% up to £300 & 75 Bonus Spins on Big Bass Bonanza

Pros

✅ Big bonus match – one of the highest match bonuses in the UK

✅ Fair 35x wagering

✅ Daily Bonus Wheel and frequent prize giveaways for existing players

Cons

❌ Doesn’t offer a no deposit free spins bonus

Grand Ivy Casino’s 150% match up to £300 and 75 free spins on Big Bass Bonanza offers more upfront value than most UK sites. You’ll also get access to a Daily Bonus Wheel – spin it every 24 hours for a shot at bonus spins, cash, or deposit match offers.

The site regularly runs high-value promotions, including giveaways worth up to £30,000 in cash and £10,000 in prizes like Apple tech and luxury travel.

👩‍💻 User review: “I’ve had no problem with this site whatsoever. On my 1st deposit, I won £400, withdrew, and it was in my account within 30 minutes. Great game selection.” 5/5 ⭐

– Kirsty Allen, Trustpilot review, 9th June 2025

💡 Editor’s insight: “To get better chances of a return when meeting the 35x rollover, stick to high RTP slots like Rage to Riches by Play’n GO – it has a 97.12% RTP, one of the highest around. Avoid table games and jackpots, as they don’t count towards wagering.”

– Adam Volz, 17th June 2025

Visit SiteRead Grand Ivy Review

2

Expert rating

4.8/5

Dream Vegas - Best bonus for slots players (free spins no wagering)

Bonus

100% up to £300 + 150 Bonus Spins

Pros

✅ Can use free spins on a selection of NetEnt slots

✅ Daily Vegas Perks and big weekly giveaways

Cons

❌ No VIP loyalty rewards

Although this welcome bonus from Dream Vegas gives you less bonus cash than Grand Ivy’s, you get double the number of spins. What’s more, your no wagering free spins aren’t locked to a single game – you can choose to spin the reels of various popular NetEnt games, including Starburst or Aloha.

Once signed up, you’ll also unlock Daily Vegas Perks like extra bonus spins and free bingo tickets. Combine this with 2,500+ games from over 100 providers, and Dream Vegas is ideal if you’re looking for frequent bonuses and access to one of the largest online gaming libraries in the UK.

👩‍💻 User review: “I signed up yesterday, deposited £100 using Apple Pay, I withdrew £771 winnings, and it was in my account within 24 hours...” 5/5 ⭐

– Lyall Richardson, Trustpilot review, 3rd August 2025

💡 Editor’s insight: “A big plus with this bonus is flexibility – you can use your free spins on selected slots and the bonus funds on most of the 2,500+ games. Just note: you’ll need to deposit £20 to get 50 spins, and over £200 for the full 150. If you’d rather start smaller, a £10 deposit unlocks the 100% match bonus from Pub Casino.”

– Adam Volz, 18th July 2025

Visit SiteRead Dream Vegas Review

3

Expert rating

3.7/5

Las Vegas Casino - Exclusive offer

Bonus

100% up to £300 & 50 Free Spins on Big Bass Bonanza

Pros

✅ Loyalty rewards program

✅ Free multiplayer bingo rooms

Cons

❌ £100 win cap on free spins

Casino.org readers can unlock an exclusive bonus at Las Vegas Casino with code LVCBASS – a 100% match up to £300 plus 50 free spins on Big Bass Bonanza, one of the UK’s top RTP slots (96.71%).

You’ll have 30 days to complete the 40x wagering, which provides you with more breathing room than other sites, such as 666 Casino. However, free spins are valid for 7 days and are subject to a maximum win cap of £100.

👩‍💻 User review: “Just signed up this evening. Had a fairly decent experience and withdrew some money.” 4/5 ⭐

– Dree, Trustpilot review, 22 May 2024

💡Editor’s insight: “A solid bonus if you love Big Bass Bonanza. Just be realistic about the win cap – it’s ideal for casual play but not for trying to win huge jackpots.”

– Adam Volz, 16th July 2025

Visit SiteRead Las Vegas Casino Review

4

Expert rating

4.4/5

Karamba - Another exclusive offer for casino.org readers

Bonus

100% up to £250 + 250 Spins

Pros

✅ Low minimum deposit – just £10

✅ Fair 35x wagering

✅ 6 weekly promotions for existing players – 60 free spins every Sunday

Cons

❌ Free spins expire in 24 hrs

If you’re a big slots fan and looking to extend your gametime, Karamba’s 100% deposit match up to £250 and 250 free spins on Big Bass Bonanza is an ideal offer – exclusive to casino.org readers!

This UK gambling site is also one of the most generous for existing player bonuses. You can get free spins 4 days a week, a cash back bonus every Monday, and a 25% deposit match every day.

👩‍💻 User review: “Won £1800 from £10 bonus wagered 450 gambled a little and withdrew £1200 within 36 hours. Trust layer is the way to go. No ID needed” 5/5 ⭐

– David B, Trustpilot review, 29th July 2025

💡 Editor’s insight: “If you value slot game time, this Karamba casino bonus is great value for money. What's more, this site updates its slots library every week with the latest releases to ensure you’ve always got new games to play using your bonus cash.”

– Ben Perks, 14th August 2025

Visit SiteRead Karamba Review

These untrustworthy casinos use unfair terms, ignore support requests, and sometimes don’t pay out. Avoid the risk – claim casino bonuses from our toplist, as every site has passed our 25-step review process to ensure fair terms, fast payouts, and real support.

Expert Rating

1.2/5

Why you should avoid
• Reports of unpaid bonus winnings
• Unfair terms
• No UK licence

Expert Rating

1.6/5

Why you should avoid
• Accounts closed unfairly
• Confiscated bonus funds
• Unresponsive customer support

Expert Rating

1.3/5

Why you should avoid
• Delayed payments
• Withheld bonus winnings
• Uses malware

Before you claim any casino bonus, it pays to read the small print. Use this quick checklist to spot the offers that are actually worth your time.

Bonus breakdownOur bonus calculator shows exactly what you’ll get before you claim. Just choose a casino and deposit amount to see your total playable balance.

Bonus Calculator

Choose a casino:

How much do you want to deposit?

£20£50£100£200

£

Deposit£20get£20as free money

Bonus info:

Free money

£20

Total credit

£40

Playthrough

£700

Wagering requirement: x35

Claim offer

T&Cs Apply to All Bonuses. 18+ only. Gamble Responsibly.

UK casino bonuses come in all shapes and sizes – each with its own rewards and rules. Scroll down to learn everything you need to know before claiming.

• 

  First deposit bonuses

  ✅ Doubles your spending power

  ✅ Common across most UK casinos

  Also known as deposit match bonus, this type of offer gives you extra cash based on how much you deposit. Usually, a casino matches your first payment by 100%. For example, when you join Pub Casino and deposit £10 or more, you’ll get an extra £10 to spend.

  💡 Expert tip: First deposit bonus cash gives you more chances to win but comes with wagering requirements. So if you get £10 bonus cash with 35x wagering, you’ll need to bet £350 on games before you can withdraw any winnings. Slots usually count 100% towards this, but table and live dealer games often count less or not at all.

• 

  Free spins bonuses

  ✅ Great for slot lovers

  ✅ Often included in welcome packages

  Free spins bonuses give you a number of spins, ranging from 5 to 150, on either one or selected games by a certain provider like NetEnt (creator of Starburst). Winnings are usually paid as bonus cash, which means you’ll need to meet wagering requirements before you can withdraw. However, a few casinos offer free spins with no wagering, so you can withdraw what you win straight away.

  💡 Expert tip: Grand Ivy and Magic Red Casino give you free spins with no max win cap and 0x wagering – meaning what you win is yours to keep.

  Check out our list of the best free spins bonuses
• 

  No deposit bonuses

  ✅ No money required to play

  ✅ Good way to test new casinos risk-free

  As the name suggests, no deposit free spins let you try a slot game without spending a penny. Only a few sites, such as Aladdin Slots, still offer them. Before claiming, be aware that they have high wagering requirements and typically offer only 5 to 10 free spins.

  💡 Expert opinion: As the spin count is low and the wagering requirements of these promos are high, your chances of winning real cash are slim.

  View the latest no deposit bonuses
• 

  Cashback bonuses

  ✅ Get a percentage back of your losses

  ✅ Low to no wagering requirements

  Cashback bonuses return a percentage of your net losses over a day or week. The terms of these deals vary: sometimes the cashback is paid in real cash or bonus funds that have wagering requirements.

  💡 Expert insight: Want a solid cashback bonus? All British Casino offers 10% cashback with no wagering, meaning you can cash it out immediately.

• 

  Reload Bonuses

  Online gambling sites offer reload bonuses to players who have already made at least one deposit. Online casinos usually give you a 50% reload bonus, so if you make a payment of £50, you'll receive an extra £25 in your account.

  ✅ Typically match a percentage of the deposit, like 50% or 100%

  ✅ Can often be used on a wide range of games, including slots and table games

  ✅ Increase your money without wagering more

• 

  Refer a friend bonuses

  Some online casinos provide a referral link or code that rewards both you and your friend if they sign up and make a deposit. Most gambling sites give you bonus cash, free spins on slots, or free sports bets.

  📷 Our favourite: Virgin Games rewards you with a £20 bonus when your referral deposits £10 or more and bets a minimum of £50 on its games.

  ✅ Boost your balance with bonus rewards for referring friends

  ✅ Share your gaming experience with friends

  ✅ Both you and your friend benefit

• 

  Game specific promotions

  Game specific promotions offer free spins or bonus money to use on a particular game. Gambling sites use these promotions to promote a new release or addition to their lobbies.

  ✅ Try new games for free

  ✅ May include unique features tailored to the games

• 

  Mobile casino bonuses

  Mobile casino bonuses are rewards designed for players who gamble using their mobile devices, such as phones or tablets. These offers often include free spins or bonus cash for downloading a casino app or playing on mobile.

  ✅ Specific bonuses for Android and iOS devices

  ✅ Exclusive offers

  View our list of the best mobile casinos for bonuses from trusted providers
• 

  Monthly, weekly or daily promotions

  To keep you from playing at other sites, some casinos have bonuses available on a daily, weekly, or monthly basis. Again, these come in all shapes and sizes – from free spins to deposit match offers. For example, Magic Red Casino gives away free spins everyday, and Coral Casino enters you into monthly prize draw for a chance to win real cash prizes.

  ✅ Regular offers

  ✅ A variety of seasonal promotions throughout the year

  ✅ Get varied prizes

We don’t list every big offer we find. Our expert team reviews each UK casino bonus using a thorough 25-step review process to discover whether it’s genuinely worth claiming. Here are some of the key areas we assess:

• Real bonus value

  Our team rates bonuses based on real value. The best offers give you a fair mix of bonus cash and free spins, low wagering requirements (ideally 35x or lower), and clear terms. Wagering tells you how many times you need to bet the bonus before you can withdraw winnings. For example, a £10 bonus with 35x wagering means you'd need to bet £350. We also check maximum win caps, time limits, and whether your bonus can be used on a wide range of games by top providers.

  💡 Expert pick: Looking for a mix of free spins and bonus cash? Grand Ivy Casino gives you a 150% match up to £300 plus 75 spins on Big Bass Bonanza.

  
• Wagering contribution

  Not all games count equally towards wagering. UK casinos often limit which games you can play with bonus funds – or how much each game contributes to clearing the wagering requirement. Slots usually contribute 100%, but some casinos restrict you to a small pool of low-RTP or less popular games. That’s bad news for players, as it makes it harder (and less fun) to meet the bonus terms. We only recommend sites that let you use your bonus on a wide range of top slots that contribute fully – giving you the best shot at turning bonus funds into real cash.

  💡 Expert pick: Pub Casino allows you to meet the turnover requirements by playing high RTP slots.

  
• Withdrawal process

  Trying to make a withdrawal only to have it held up is frustrating. That’s why we favour casinos with average payout times under 24 hours. We also only approve sites that support trusted UK payment methods like debit cards, PayPal, and Apple Pay, all of which use strong encryption to keep your details secure.

  💡 Expert pick: Grand Ivy Casino processed our withdrawals in under 3 hours in our latest tests.

  
• Ongoing rewards

  A one-off welcome bonus is fine, but we look for casinos that continue to reward loyal players. Weekly spin offers, reload deals, and loyalty perks all help a casino climb our ratings, as they help extend your play time, give you better chances of winning and let you try new games with limited risk.

  💡 Expert pick: Magic Red Casino has eight ongoing promotions for existing players (one of the most generous in the UK), including a daily free spins offer.

  
• Easy to claim

  We only recommend bonuses that are easy to claim and available to most players. That means a low minimum deposit (ideally £10 or less) and a simple activation process. If you have to jump through lots of hoops to claim it, it doesn’t make the list. A good example is the Magic Red Casino welcome offer: you only need to complete its quick sign-up process and make a £10 deposit to unlock 100 free spins with no wagering.

  💡Expert tip: Sometimes a casino will ask you to complete a KYC (Know Your Customer) check when claiming a bonus – this is standard practice. To avoid unnecessary delays, ensure you have valid identification and proof of address ready when signing up.

  
• Mobile compatibility

  Claiming and using bonuses should be just as easy on mobile. We test how well you can claim, play, and cash out using your phone or tablet. Only casinos with fast-loading games, smooth navigation, and simple banking processes get our approval.

  💡 Expert tip: One of the best mobile casinos in the UK is All British Casino. It has a 4.2/5-rated iOS app and a fast, user-friendly mobile site that works smoothly in both portrait and landscape modes.

  
• Overall rating

  Plenty of licensed casinos offer generous bonuses, but that doesn’t mean they’ll make our list. If a platform fails in one key area – whether that’s poor mobile design, unclear terms, or weak support – we don’t recommend it. We score bonuses based on the full player experience, ensuring that every offer we list comes from a site that delivers on all fronts – from signing up to cashing out.

  

Although claiming bonuses can give you extra chances to win, gambling should always be seen as entertainment – not a way to make money. Set limits, stick to your budget, and only ever play with what you can afford to lose. If you're struggling to stay in control, avoid claiming casino bonuses and contact professional support services like Gamblers Anonymous or GambleAware for free, confidential help.