#ad
18+
This site contains commercial content
Advertisement Disclosure
This independent comparison website helps consumers choose the best available gambling products matching their needs. We offer high quality advertising services by featuring only established brands of licensed operators in our reviews. We receive commission for advertising the brands listed on this page. This may influence brand ranking. Please note that although we endeavor to provide you with up-to-date information, we do not compare all operators on the market.

Best Casino Bonus Codes in the UK – Latest Promos for May 2021

Bonuses are one of the features that make online casinos stand out from the crowd and attract new customers, but sometimes you need to say the magic words before you can access them and win real money. On this page, we’ll be taking a look at all the casino bonus codes you need for accessing the best online casino offers.

Actual Bonus Codes for Exclusive Welcome Bonuses for May 2021
Online Casino Bonus Bonus Code Rating Secure Link T&C’s
25 Free SpinsAfter Deposit ARCADE 4.6/5 Get Bonus Full T&Cs apply. First-time depositors only (18+ UK exc NI). Min Deposit: £10. Max Offer: 25 Free Spins [on a game of our choice]. Free Spins Winnings will be capped at £2.50 and credited as bonus funds. 40x wagering applies to bonus funds. Unused Free Spins expire after 7 days. 
500 Free SpinsFor Slots Players NBWELCOME500 4.5/5 Get Bonus Full T&Cs apply. *New players, £10+ deposits, no e-wallets / prepaid cards, 30x Playthrough on Bonus and 50x on Free Spins. T&Cs apply
77 Free SpinsNo Deposit Required + £200 Bonus WELCOME777 4/5 Get Bonus Full T&Cs apply. New players only • No Deposit Offer: Claim in 48 hrs • 14 day expiry • Free Spins (FS) wins credited as bonus & capped at £10, exc. JP win • Deposit Bonus Offer: FreePlay (FP) wins credited as bonus & capped at amount received, exc. JP win • Valid for selected games • Bonus wins capped at £500 • 50x wagering - req. vary by game • Bonus expires within 90 days Withdrawal restrictions & T&Cs apply: No Deposit Offer & Deposit Offer
100 Free SpinsOn Spinning Wilds KAR100 4/5 Get Bonus Full T&Cs Apply. First Deposit Only. Min. deposit: £10. Game: Spinning Wilds, Spin Value: £0.10. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies.
£60200% Match Bonus OCUK 4/5 Get Bonus Full T&Cs apply.New customers only. Min deposit £10. Bonus spins credited as follows: 40 spins upon first deposit, with additional 2×30 spins 24 and 48 hours thereafter. Spins coin value: £0.01; 35x wagering; 7 days/24 hours expiry for deposit match/bonus spins. Max stake and game restrictions apply. Full Ts & Cs apply. 18+. BeGambleAware.org
100 SpinsOver Three Deposits KAR100 4/5 Get Bonus Full T&Cs apply. 18+, Welcome Bonus: New Players only. Min Deposit: £10. Max bonus £50. 100 spins require 3 deposits: min second and third deposit ‎£20. WR 35x, spins valid for 24hrs, on selected games.
500% up to £500Deposit Match Bonus FBWELC 4/5 Get Bonus Full T&Cs apply. Full T&Cs apply. Available to new customers from selected countries only. 18+. Deposit £10 or more to qualify. The bonus and extra spin winnings must be wagered 80x. General bonus terms apply.
100% up to £50First Deposit + 25 Spins MEGA 4/5 Get Bonus Full T&Cs apply. First Deposit Only. Min. deposit: £20, max. Bonus £50. Game: Ninja Master, Spin Value: £0.20.WR of 60x Bonus amount and Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Free Spins must be used before deposited funds. 
100% up to £50For New Players Start 4/5 Get Bonus Full T&Cs apply. First Deposit Only. Min.deposit: £20, max.Bonus £50. Game: Ninja Master, Spin Value: £0.20. WR of 60x Bonus amount and Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10 % (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Free Spins must be used before deposited funds. Bonus Policy applies.
A Laptop with cartoon present and cash icons.

Top 5 UK Bonus Code Casinos

  • 🥇 SlotsMillion ✪ Best Bonus Code – OCUK
  • 🥈 Arcade Spins ✪ Top Deposit Bonus Code – ARCADE
  • 🥉 NetBet ✪ Most Free Spins Bonus Code – NBWELCOME500
  • Karamba ✪ Best Low Wagering Code – KAR100
  • 777 Casino ✪ Top New Promo Codes – WELCOME777

As you can see in the table above, there are a number of real money and bonus spins welcome bonuses that can only be accessed via promo codes. For a more general overview of the real money deposit bonus offers – both with and without bonus codes – head over to our bonus page. To learn more about bonus codes in detail, check out our bonus code guide. There, we will explain the differences between the best no deposit bonuses, deposit free spins and how new customers can use a bonus code to win real money.

The Best Promo Codes for Extra Free Spins

One of the most common rewards you can expect in return for entering casino bonus codes UK are free spins on a variety of popular real money slot games. Deposit free spins offers are ideal for new players or long-time fans of slots, as they present no risk and allow you to get to grips with some great titles for free. Instead of bonus money that you could put towards any title, these bonus spins are usually only for specific slots. Sometimes operators will even offer free spins no deposit bonuses to help entice in new customers.

Online Casino Promo Codes for Extra Free Spins
Online Casino Bonus Bonus Code Rating Secure Link T&C’s
25 Free Spins ARCADE 4.6/5 Get Bonus Full T&Cs apply. First-time depositors only (18+ UK exc NI). Min Deposit: £10. Max Offer: 25 Free Spins [on a game of our choice]. Free Spins Winnings will be capped at £2.50 and credited as bonus funds. 40x wagering applies to bonus funds. Unused Free Spins expire after 7 days. 
500 Free Spins NBWELCOME500 4.5/5 Get Bonus Full T&Cs apply. *New players, £10+ deposits, no e-wallets / prepaid cards, 30x Playthrough on Bonus and 50x on Free Spins. T&Cs apply
77 Free Spins + £200 Bonus WELCOME777 4/5 Get Bonus Full T&Cs apply. New players only • No Deposit Offer: Claim in 48 hrs • 14 day expiry • Free Spins (FS) wins credited as bonus & capped at £10, exc. JP win • Deposit Bonus Offer: FreePlay (FP) wins credited as bonus & capped at amount received, exc. JP win • Valid for selected games • Bonus wins capped at £500 • 50x wagering - req. vary by game • Bonus expires within 90 days Withdrawal restrictions & T&Cs apply: No Deposit Offer & Deposit Offer
100 Free Spins KAR100 4/5 Get Bonus Full T&Cs Apply. First Deposit Only. Min. deposit: £10. Game: Spinning Wilds, Spin Value: £0.10. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies.
100 Spins KAR100 4/5 Get Bonus Full T&Cs apply. 18+, Welcome Bonus: New Players only. Min Deposit: £10. Max bonus £50. 100 spins require 3 deposits: min second and third deposit ‎£20. WR 35x, spins valid for 24hrs, on selected games.

These bonuses from casino promo codes are often offered in conjunction with a deposit match bonus, but the number of spins available is not reliant on the value of your real money deposit amount. So long as you meet the minimum requirements of the deal, you’ll be able to avail of the free spins as advertised in the casino bonuses pages.

There are also many free spins deals that do not require you to enter a promo code. To learn more about these deposit free spins, you can take a look at our general free spins guide. As you’ll soon see, there’s a wealth of free spin goodies to be explored that don’t need a bonus code.

Another time when you might be asked to use a promo code when making a real money deposit into a casino is if you want to take advantage of certain casino cashback bonus offers. As always, just check out the small print of the deal to be sure it suits your needs. These types of deposit casino bonuses are a kind of insurance when you don’t win real money from certain wagers.

The Best Bingo Bonus Codes

Real money slot fans aren’t the only ones who can get in on the casino bonus codes UK. As a matter of fact, you’re often more likely to find promo codes for bingo sites and other gambling operators than you are for most online casinos. From these bonus spins and bonus money offers, you can win real money that eventually you can withdraw. Take a look at our pick of some of the best bingo bonus codes below.

Latest Online Bingo Promo Codes in the UK
Bingo Site Bonus Offer Bingo Bonus Code Rating Secure Link T&C’s
£20 Bonus BINGO 5.0/5 Get Bonus Full T&Cs Apply. UK only. Win up to 500 Free Spins from Mega Wheel on 1st deposit. 24-hour expiry. Max bet £2.50, max spins win £8 per 10 spins, max Bonus win £150, selected games & 65x wagering on winnings. No Neteller/Skrill. Deposit/withdrawal fees apply.
£60 Bonus WIN70 5.0/5 Get Bonus Full T&Cs apply. Full T&Cs apply. 18+. New players only. Dep. min £10 to get £20 bingo bonus + £40 games bonus (total max bonus £60). Valid once. Bonus wins capped at £100, exc. jp wins. To withdraw wins related to bingo bonus, wager 2x the deposit + bonus funds. To withdraw games bonus & related wins, wager 50x the amount of the bonus; wagering req. vary by game. Deposits can be withdrawn at any time. Withdrawal restrictions & Further T&Cs apply
Monday £300 Prize Pool + Free Game WINWIN 4.7/5 Get Bonus Full T&Cs apply. 18+. New Casino players only. Deposit required. Min stake £10 on qualifying games. 40x wager reqs (bonus only) on selected games. 24hrs to accept. Bonus valid for 48hrs. Certain deposit types excluded. Bets covering >70% of Roulette table excluded. T&Cs Apply.
Monday £3 Bingo Slots Bonus MINIMONDAY 4.7/5 Get Bonus Full T&Cs apply. 18+. New Casino players only. Deposit required. Min stake £10 on qualifying games. 40x wager reqs (bonus only) on selected games. 24hrs to accept. Bonus valid for 48hrs. Certain deposit types excluded. Bets covering >70% of Roulette table excluded. T&Cs Apply.
£20 Bonus COACH 4.0/5 Get Bonus Full T&Cs apply. New players only. Deposit min £10 to get 250% bingo bonus (max bonus £250). One 1st Deposit Bonus available per player. To withdraw winnings related to bingo bonus, wager 2 times the deposit + bonus funds; wagering requirements vary by game. This offer may not be combined with any other offer. Deposits can be withdrawn at any time. Withdrawal restrictions and Further T&Cs apply

Bonus codes, as offered by bingo sites, can allow you to access a wide variety of deals – spanning from free games to free spins or bonus money. To learn more about the kinds of deposit casino bonuses available, and about playing real money bingo online more generally, we recommend that you check out our online bingo guide.

No Deposit Casino Bonus Codes

Perhaps the most sought-after of all bonuses online are no deposit bonuses. As the name suggests, these free spins no deposit bonus deals reward players with absolutely no obligation to make a deposit. You can learn more about these exciting offers on our dedicated no deposit casino bonus page.

As a quick overview, when describing types of no deposit options, you can think about bonus spins and free bonus cash as common options.

  • Live Casino Bonus Available
  • Great Game Selection
888casino Bonus £88 Free Play
Bonus Code: WELCOME1 Get Bonus
Full T&Cs apply. New players only • No Deposit Offer: Claim in 48 hrs • 14 day expiry • FP wins are credited as bonus and capped at €10, exc. JP win • 50x wagering • Deposit Bonus Offer: €20 min deposit • Valid for selected games • Bonus wins capped at €500 • 30x wagering – req. vary by game • Bonus expires within 90 days • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply.

As you might expect, casino bonus no deposit deals are quite rare. As such, there is less variety among them than you might find with deposit match bonuses, many of which often require just a small investment. However, as a springboard for new players, these deals can be a perfect introduction to online casinos.

With so many options available, across bonus codes and no codes, deposit match and no deposit, new players can often feel overwhelmed. That why we try to rank the best deals in our top offers overview and give players the tools to identify good offers.

Free Spin Casino No Deposit Bonus Codes

As you’re probably starting to notice, there’s a lot of mix-and-match potential among bonuses and their respective bonus codes. We’ve already covered free spins and no deposit bonuses, but in this section we’ll take a look at what happens when these two bonus types combine into free spins no deposit deals.

Bonus Code: WELCOME777 Exclusive Games
77 Free Spins with No Deposit
Full T&Cs apply. New players only • No Deposit Offer: Claim in 48 hrs • 14 day expiry • Free Spins (FS) wins credited as bonus & capped at £10, exc. JP win • Deposit Bonus Offer: FreePlay (FP) wins credited as bonus & capped at amount received, exc. JP win • Valid for selected games • Bonus wins capped at £500 • 50x wagering - req. vary by game • Bonus expires within 90 days Withdrawal restrictions & T&Cs apply: No Deposit Offer & Deposit Offer

No deposit free spins are arguably the lowest risk offers available to players. You get all the benefits of learning the rules and features of exciting games without having to spend a penny. You’ll most likely find these deals at new casinos, which utilize them as incentives for players to join.

As has been stated elsewhere, these are ideal offers for first-time players who want to dip a toe into the world of online casinos, without taking a financial hit. If that sounds like you, we definitely recommend that you use the link provided above to claim the featured bonus.

Additional Info About Promo Codes at a UK Casino

Now that we’ve covered the most common forms of promo code bonuses available, we can get into the nitty gritty of what makes these deals worthwhile and how to spot a legitimate offer. There’s more to it than just looking at the bonus amount or the advertised deposit free spins. The next couple of sections will expand upon these topics, so read on to learn more. Alternatively, you can skip ahead to our frequently asked questions.

Why Use Casino Bonus Codes to Claim Bonus Offers?

Given the fact that there are so many casinos available that don’t require bonus codes to claim casino bonuses, you might find yourself asking “What’s the point of using bonus codes anyway?” In short, codes exist to give customers more options and allows casinos to appeal to a broader player base with a tempting way to win real money. They’re also known as bonus vouchers.

For instance, codes are a simple way to launch and promote limited-time offers, that otherwise would not appeal to new players or would go largely unnoticed by loyal players. Offering a bonus code an inobtrusive, totally optional way for new customers and existing ones to access greater rewards, should they wish to do so. A great way to offer deposit free spins or bonus money for players who are ready to continue their experience, rather than those just starting out.

In this regard, bonus codes are a great way to reward loyal customers. It’s often difficult to track down a bonus code unless you’re keeping a close eye on an operator’s promotions page or social media feed, trawling for new no deposit bonuses or bonus money, so access to codes rewards players for their brand loyalty and awareness.

The Steps to Claim a Bonus using a Bonus Code

If this is your first time using a bonus code to avail of an offer, don’t fret. The process of claiming the bonus amount is exceedingly simple, and typically follows the same three steps across all operators. For your convenience, we’ve outlined those steps for using a deposit bonus code below:

1
Choose a Casino

Choose a casino and/or bonus that appeals to you from our select rankings of casino bonuses for new customers.

2
Create an Account

Create an account by clicking the “register” or “join” button and filling the registration form.

3
Enter the Code

Enter the code into the available code box, which is often found alongside the available payment methods to claim your bonus.

Naturally, there are exceptions to every rule, so while the above steps will largely be universal, we still recommend that you pay careful attention to the terms and conditions of your chosen casino and deposit bonus offers. It is here that you’ll learn about any restrictions or limitations placed on the offer. Even if you can win real money, there will be t&cs on how to do so.

The terms and conditions will also clue you into which games are excluded from or included in the offer, any wagering requirements you will be expected to meet, or any behaviours on your part that might exclude you from opting into the deal.

These wagering conditions for even the best no deposit bonuses or deposit casino bonuses will more often than not require you to playthrough the bonus amount before you will be able to withdraw any of your winnings.

What Are the Characteristics of a Good Bonus Offer?

For many newcomers to the online casino scene, it can be difficult to ascertain which sites are worth visiting and which offers are legitimate. To help you on your quest, we’ve outlined some of the most important factors to look out for below.

Serious Offers Come from Licenced Casinos

If you’ve read any of our other pages and articles, you’ll know that player safety is always our number one priority. While many bonus offers online seem appealing, there are some shady sites that use offers to lure players into a scam. A good way of avoiding scams is by looking for a valid licence.

Licences are issued by the official state gambling regulator in each country or region. For the UK, this is the Gambling Commission. Sites are only issued a licence from the GC once they’ve met the regulator’s high security and safety standards. For a full overview of sites licenced by the GC, check out our list.

You can find licence information by scrolling to the bottom of your chosen casino’s page. You can also look for other security measures, such as certificates of valid encryption software. You can do this by clicking the small lock icon in the left corner of your browser’s address bar. When playing with real money, it’s important to take security and safety seriously before claiming deposit bonus offers.

Rules and Conditions

As with all things in life, it’s a good idea to read the fine print before signing up for casino bonuses. One reason for this, is so that you can get acquainted with the deal’s wagering requirements. This refers to the number of times you’re required to wager the value of your deposit and/or bonus before you can withdraw. Even a bonus no deposit deal will have wagering requirements attached. Perhaps you could find a no wagering bonus, which are among the favourites. Importantly, there will never be a max withdrawal of your funds, as that goes against UK law.

Other important terms for casino bonuses include deadlines and periods of validity. This is the window of time in which you can meet the wagering requirements before the free bonus deal becomes void. Finally, the terms will also let you know of any wagering maximums, which might also delay your progress to meeting the requirements of the casino bonuses.

You Should Be Aware of These Conditions:

Allowed Payment Methods

When selecting your bonus offer, you might find that some payment methods are excluded from triggering casino bonuses no deposit deals. This is not always the case, but it’s worth checking the terms and conditions ahead of time to make sure your favoured method is available. Here’s a list of the most common payment options:

There are a couple of important things that new customers need to be aware of when making payments at online casinos. For starters, you’re often required to use the same method for withdrawals as you did to make your deposits, whenever available. This is an anti-money laundering measure used by many operators to protect the real money transactions.

You’ll also find that most payment methods have different minimum deposit requirements, and the processing time could be longer or shorter depending on the option you choose. Therefore, for the sake of player comfort and accessibility, the best casinos will always have a broad range of options to use when using a deposit bonus code.

Thanks to the protections and laws from the United Kingdom Gambling Commission, there are no max withdrawal restrictions for real money gamblers in the UK. The only type of max withdrawal proviso that can be enforced is that there could be max winnings from bonus spins up to a certain cap.

New Casinos with Bonus Codes

The latest online casinos and deals are being launched all the time, which is why our team of casino devotees keeps a close eye on the latest developments in casinos with a bonus code. This page is regularly updated to give you access to the newest casino bonus codes around in our official ranking, so check back often. Until then, you can also find the latest deals without and with bonus codes below.

The Latest UK Casino Bonuses and Codes

Conclusion: Always Check for UK Bonus Codes

There’s no harm in taking your time to do a check for UK casino bonus codes, as the casino bonuses are changing all the time. We recommend checking this page before making any deposits to see if you can’t add some extras on top of what you’d be getting normally by using a deposit bonus code – or if you’re lucky, get a free spins no deposit deal. Below is a quick overview of some current bonus code deals you can consider for the chance to win real money, or you can also look at our list of the best real money casinos.

Overview of the Best UK Bonus Code Casinos
Best Bonus Codes NetBet
Best Low Wagering Code 888ladies
Top Microgaming Bonus Code Karamba
New Promo Codes NetBet
Slots Bonus Code Arcade Spins
No Deposit Bonus Code mFortune
Free Spins Bonus Code NetBet
Free Play Cash Promo Code 888casino
Blackjack Bonus Code 888casino
Roulette Bonus Code SlotsMillion
Bingo Promo Code Ladbrokes
£20 Bonus Code NetBet

FAQ

We hope that this page has answered any queries you might have had about casino bonus codes, deposit bonus offers and the types of no deposit bonus that are out there. We hope that you now feel comfortable playing at any of the operators featured here and have chosen the best no deposit casino with a bonus code. If you’re unsure about anything, feel free to read our frequently asked questions below.

🥇 What is the best casino promo code?

That largely comes down to personal taste and what you're looking for. There's a lot of variation between promo code bonuses, so we recommend casting an eye over our ranking of the best promo code offers to see which one jumps out at you.

🏆 What are the latest casino no deposit bonus codes?

This is often subject to change, as many offers are available for a limited time only. Furthermore, many new deals are launched every month. That's why we keep our page updated with the latest bonus information. You can find our pick of the latest casino no deposit bonus codes in our guide to no deposit offers.

💳 Are there any no deposit casino bonus codes for existing players in the UK?

There are sometimes no deposit casino bonus codes offered for existing players in the UK, but these kinds of deals are typically offered for a limited time only. This most common form of no deposit deals for existing customers are free spins.

😎 What are casino promo codes?

Promo codes are kind of like passwords that, once entered, can allow casino players to access a variety of different deals and rewards. To learn about codes in greater detail, you can take a look at our overview of online casino promo codes.

💡 What should I be aware about while claiming casino promo codes?

When claiming casino promo codes, the same precautions apply as they would when joining an online casino site. You need to check for a valid licence, encryption software and fair terms. For the full overview of what to look out for, check out our guide to what makes a good offer.

⚖️ Do all online casinos offer a promo code?

No, many casinos do not offer promo codes at all. To learn more about these casinos and their various code-free offers, we recommend that you read our general bonus guide.

🎁 Are there any special bonus codes for mobile casino players?

While it's not impossible that you'll find a mobile-specific bonus that requires a promo code online, these kinds of deals are exceedingly rare. Instead, you're more likely to find mobile bonuses that do not require any promo codes.

🔍 Can I also find promo codes for bingo offers?

Yes, there are many promo codes for bingo bonuses available online. To see which deals we think are the best, take a look at our bingo bonus codes overview.