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Best Online Casino Bonus Offers in the UK 2022



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Part of the appeal of online gambling is the rewards offered to players. An online casino bonus can provide an excellent platform for players to build from. Whether it be an online casino no deposit bonus or a matched deposit bonus, such promotions are available with most operators. Of course, some are more attractive than others. On this page, we will deliver the best online casino sign up bonus offers available in the UK. We will also discuss the key online bonus casino terms and conditions.

The Top Online Casino Bonuses Reviewed 

1. 2KBet Casino: 100% Bonus up to £100 + 100 Free Spins

2KBet was only founded in 2020. However, the brand’s online casino has already attracted many players. This is thanks, in part, to the welcome bonus on offer to new customers. Worth as much as £100 and the same number of free spins, a deposit of just £10 is required in order to qualify.

2kbet casino games

The bonus and winnings are available for 30 days, with 50x wagering requirements being in place. The maximum conversion is 3x the bonus amount, which should suit most players.

What we like:

  • Bonus funds and free spins available
  • Low minimum deposit
  • Games from top software providers
  • Ongoing casino promotions too

What we don’t:

  • High wagering requirements

2. 888Casino – 100% Bonus up to £100

888Casino has long been regarded as one of the best in the business. As well as an appealing no deposit bonus, a 100% matched deposit, up to £100, is available to new customers. While a deposit of at least £20 is required, 30x wagering requirements are realistic.

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Winnings are capped at £500, while players have 90 days to play the bonus through. While payment restrictions were found, the terms and conditions surrounding the 888Casino welcome bonus are fair. With thousands of games being available, it is well worth checking out what the casino has to offer elsewhere.

What we like:

  • Realistic wagering requirements
  • No deposit and matched deposit options
  • 90 day expiry
  • 2,000+ casino games

What we don’t:

  • Winnings capped at £500

3. Grosvenor Casino – Bet £20 Play With £50

The bonus from Grosvenor Casino works a little differently. Here, a deposit of £20 will give players a kitty of £50. A deposit of £20+ will be 100% matched, up to £20, with players having to choose from a £10 bonus for Classic Slot or Live Casino.


Then, spend another £20 on any Grosvenor Casino venue and the casino will match it. Bonus funds will be available for 30 days, with other terms and conditions being favourable. With Genesis Casino continuing to make a major impression on the industry, having been around since 1966, be sure to consider this bonus!

What we like:

  • Unique casino bonus
  • Realistic bonus terms
  • Hugely experienced operator
  • Large number of eligible games

What we don’t:

  • Lack of no deposit bonus

4. Genesis Casino – 100% Bonus up to £100 + 300 Free Spins

Genesis is another online casino to offer both bonus funds and free spins as part of its welcome package. 30 free spins are delivered upon a qualifying deposit being made. Then, 30 more free spins per day will be awarded for the next 9 days.

Genesis Casino Games

However, free spins can only be used on the Starburst slot. Free spins are valid for just 72 hours. A deposit of just £10 is needed here, however Skrill and Neteller payments will be excluded. 

What we like:

  • Bonus funds and free spins available
  • Low minimum deposit
  • 40x wagering requirements
  • Excellent all-round casino site

What we don’t:

  • Free spins only available on Starburst slot

5. Mr. Green Casino – 100% Bonus up to £100 + 100 Free Spins

Launched back in 2007, Mr Green is one of the world’s leading gambling operators. Mr Green has an excellent reputation when it comes to bonuses and promotions. New customers can win a bonus worth up to £100, as well as 100 free spins.

Mr Green online slots lobby

A deposit of just £10 is required, with the casino matching deposits up to £100. Wagering requirements of just 15x are found, making profiting from this bonus realistic. Free spins can be used on Lucky Mr Green only. 

What we like:

  • Low minimum deposit
  • Realistic wagering requirements
  • Bonus funds and free spins
  • Popular online casino

What we don’t:

  • Free spins restricted to just one game

Different Types of Online Casino Bonus 

Some are undoubtedly more common than others. However, there are a variety of bonuses available to players at online casinos today. It is important to understand the difference between each bonus. Below is a quick breakdown of the online casino bonus offers players in the UK can expect to find:

Matched Deposit Bonus

As you will see from the table at the top of the page, the most common promotion for new customers is a matched deposit bonus. Here, new players will see their opening deposit rewarded by a bonus. This will be 50%, 100% or 200% of your deposit. As such, it can provide players with a large opening kitty. Of course, terms and conditions are found, including wagering requirements, payment restrictions and expiry date. Offering a 100% matched bonus of up to £100 + 100 free spins, 2KBetCasino is one of the many online casinos offering such a bonus. 

No Deposit Bonus

Such bonuses are hugely appealing to players. This is because no financial investment is required. Simply completing the registration process will result in a bonus, albeit a small one. This is likely to be as high as just £20. However, with this effectively being free funds to play with, online casino no deposit bonus offers are well worth taking advantage of. A no deposit bonus worth 88 free spins is available at 888Casino.

Free Spins Bonus

For fans of online slots, free spins bonuses are likely to appeal. Rather than bonus funds, bonus spins are offered by online casinos. For example, Betfred offers 100 free spins to new players depositing £10+. Spins are likely to be available on selected slots, with wagering requirements once again coming into play.

Reload Bonus

For existing customers, reload bonuses are one of the most popular bonuses. Offered to players who deposit over a specific amount in the required timeframe, reload bonuses are available at an increasing number of casino sites. At Genesis Casino, players can earn a 25% bonus worth up to £100 on a Friday. 

Comparing the top 10 Casino Bonus Offers 

We have already listed our top ranked online casino bonus offers available today. However, the table below goes into a little more detail, including the key terms and conditions to consider: 

Online Casino Welcome Bonus Key T&Cs Payment Restrictions
2KBet Casino 100% Bonus up to £100 + 100 Free Spins 50x wagering requirements, selected games only, 30 day expiry Skrill deposits excluded
888Casino 100% Bonus up to £100 £20 minimum deposit, selected games only, bonus wins capped at £500, 30x wagering requirements, 90 day expiry,  Skrill & Neteller deposits excluded
Grosvenor Casino Bet £20 Play With £50 £20 minimum deposit, selected games only, 30 day expiry,  None
Genesis Casino 100% Bonus up to £100 + 300 Free Spins £10 minimum deposit, 40x wagering requirements, 14 day expiry,  Skrill, Neteller, PayPal and Paysafecard deposits excluded
Mr Green Casino 100% Bonus up to £100 + 100 Free Spins 35x wagering requirements, £10 minimum deposit, 7 day expiry None
10Bet Casino 50% Bonus up to £50 + 25 Free Spins £15 minimum deposit, 40x wagering requirements, maximum winnings of 10x bonus Skrill & Neteller deposits excluded
Mr. Play Casino 100% Bonus up to £200 + 100 Free Spins £10 minimum deposit, 50x wagering requirements,  None
Sloty Casino 100% Bonus up to £100 + 300 Free Spins £10 minimum deposit, 40x wagering requirements, 14 day expiry,  E-wallets excluded
Karamba Casino 100% Bonus up to £50 + 100 Free Spins £10 minimum deposit, 35x wagering requirements  Skrill excluded
777 Casino 100% Bonus up to £200 £10 minimum deposit, 50x wagering requirements, 90 day expiry Skrill & Neteller excluded

Which Payment Methods Can I Use For Online Casino Bonuses? 

As you will have read in the table above, some online casinos bonuses come with payment restrictions. This will mean that your preferred method of payment could be excluded from the promotion. In most cases, it is e-wallets that are ineligible. This means that punters looking to add funds via Skrill, Neteller, PayPal or Paysafecard may have to look for an alternative. Of course, having made your opening deposit, you can then switch to your no.1 payment option. With credit cards being banned for gambling purposes in the UK, it is recommended to use a debit card for your first deposit. This will put you in a position to qualify for any online casino bonus that may be on offer. 

Online Casino Bonus Key Terms and Conditions 

Before signing up with a casino, it is important to look at its bonus terms. Terms and conditions will impact both how players qualify in the first place, as well as how they profit from the bonus. Below are some of the most common bonus T&Cs, which players must familiarise themselves with:

  • Minimum Deposit – In order to qualify for an online casino bonus, a deposit will generally be required. Deposits made below this value will not be eligible. So, whether it be £10, £20 or £50, ensure that you add the required funds to your account. Payment restrictions may also come into play. This will impact which payment methods are eligible for a bonus. 
  • Wagering Requirements – Unfortunately, winnings made from a casino bonus will not be available to withdraw immediately. In most cases, wagering requirements must be completed beforehand. This means betting the total bonus amount anywhere from 10x to 50x. Of course, the higher the wagering requirements, the more unrealistic profits will be. 
  • Eligible Games – When using an online casino bonus, players must consider eligible games. Bets placed on other games will not contribute to the wagering requirements. Meanwhile, some games will contribute more to the wagering requirements than others.
  • Expiry – When looking to meet the wagering requirements set, players will have a specific number of days. This can be anywhere from 7-90, with the type of bonus determining the exact period of time. Bonuses that remain after the expiry date will most likely be forfeited.
  • Maximum Winnings – In order to cover their own backs, many online casinos will set maximum winnings. This means that regardless of how much players make from a bonus, earnings will be capped at this amount. This can be as much as thousands of Pounds, with beginners and high rollers normally catered for.

How To Profit From Online Casino Bonuses 

No matter how good the bonus is, there are no guarantees that a profit will be made from it. However, there are steps which players can take to increase their chances of success. The following are our top 5 tips for profiting from an online casino bonus:

  1. Check the T&Cs – Before claiming any casino bonus, be sure to read the small print. There is nothing worse than being surprised by the high wagering requirements or payment restrictions after signing up and depositing. 
  2. Wagering Requirements Contribution – Different games will contribute varying amounts towards the wagering requirements. For example, slots may contribute 100%, while live dealer titles may only contribute 10%. Such facts will have a major impact on how quickly you can unlock bonuses.
  3. Low Variance Slots – Low, or even medium, variance slots are well worth playing with bonuses. While the size of the wins here may not be large, the number will appeal to newcomers. Such games make reaching the wagering requirements all the easier. 
  4. Track Your Progress – It can be easy to get carried away when using a casino bonus. However, rather than placing bets at will, be sure to regularly check on your progress. Doing so will allow players to see how close they are to reaching the wagering requirements. 
  5. Forfeit the Bonus? – It may sound crazy, but in some cases, it is actually better to forfeit the bonus. Most players will bet with real money first, rather than bonus funds. In the event of winning big with your own money, it could be worthwhile withdrawing immediately, thus forfeiting the bonus.

How To Sign Up For An Online Casino Bonus 

It is nice for players to have an understanding of how to claim an online casino bonus before getting started. Using the bonus from 2KBet Casino as an example, the following step by step guide will help players on their way:

Step 1: Register an Account

Having selected the bonus that best suits your needs, it is time to register an account with the casino in question. Whether it be via desktop, mobile or tablet, enter the website of the casino. Click or tap on the “JOIN NOW” button. Complete the registration form by entering the required personal details. At this point, also create a password for your account. Click or tap “Submit” in order to confirm. Verify your account via email to complete the sign-up process.

2kbet casino

Step 2: Deposit Funds

Login using your username and password. Enter the cashier page, before selecting the “Deposit” option. Select an eligible payment method from the list provided. Enter the amount, ensuring that you hit the minimum deposit requirement. If a debit card is selected, enter the card details, including expiry date and CVV code. Confirm the transaction and wait a few seconds for funds to appear within your account.

2kBet Deposit Options

Step 3: Claim Bonus

Within 48 hours of making a qualifying deposit, the amount will be doubled in the form of a bonus. For example, if you deposited £20, your opening balance will be £40. If you have not received your bonus within this timeframe, contact the casino’s customer service team.

Step 4: Place Bets

Place bets using your bonus in order to meet the wagering requirements. Look at which games are eligible, as well as how different titles contribute more to the wagering requirements. At 2KBet, this is 50x the bonus amount. 

2kbet casino live games

Step 5: Withdraw Winnings

Once you have met the wagering requirements, withdrawals will be available, should you have money left. When ready, enter the cashier page again, this time selecting the “Withdraw” option. It is recommended to use the same payment method for deposits and withdrawals. However, if you wish to use an e-wallet to speed things up then that is allowed.

Bottom Line on Online Casino Bonus Offers

When the terms and conditions are realistic, there is little doubt that an online casino bonus can be hugely rewarding for players. The majority of bonuses are reserved for new customers. However, reload and cashback bonuses help to keep existing customers satisfied too. Be sure to check out our top ranked offers, each of which comes from a licensed and fair online casino. 

Casino Bonus Online FAQ’s

Can I make money from a casino bonus online offer?

What are the key T&Cs surrounding online bonus casino offers?

Are online casino no deposit bonus offers available in the UK?

Can I claim an online casino bonus on mobile?

Which games can I play with bonus funds?

James is a freelance writer who specialises in the world of sports and iGaming, producing engaging and accurate content for online publications, including news articles, reviews, press releases and social media marketing.