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Best Online Casino Bonuses UK 

This online casino bonus overview provides you with the most important details about how to claim your bonus, where to find the perfect bonus for your particular needs, and how to fully understand wagering requirements and bonus terms.

What Exactly is a Casino Bonus?

An online casino bonus is simply a certain amount of bonus funds you can wager on games without the need to use your casino cash balance. These offers come in different forms, including bonuses that only qualify through deposits and some that are not set on deposit requirements. Furthermore, there are different types of bonuses, including free spins, deposit match bonus, bonus money, and much more. If you want to play with bonus funds, read bonus terms before claiming your bonus.

The Inner Workings of Casino Bonuses

Online casino bonuses are given in specific numerical values. They are set on particular wagering requirements that need to be met. Wagering/playthrough requirements require you to wager the total value of your bonus a certain number of times (usually x30 or x40) before being able to win and withdraw real money.

For guides on specific types of bonuses, including wager bonuses, read our Casino Legends bonus overviews and learn more about earning loyalty points for extra rewards, winging big with a high roller bonus, and even how to get cashback bonuses as loyal players.

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Casino Legends Approved Casino Bonuses

Whether you are looking for exclusive casino bonus offers, free spins on your first deposit, a wager bonus, or looking to win big with a high roller bonus, our top recommended casino bonus can work for you.

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Our content features affiliate links, through which we may earn a commission on casino registrations and deposits. Rest assured, we only recommend casinos that are licensed and have been thoroughly vetted by our casino experts. Discover the facts with us, then dive into play.

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Unibet – Casino Welcome Offer

Deposit £10 and get a £40 Casino Bonus

  • Minimum £10 Qualifying Deposit
  • Debit Card Only
  • Up to x50 Wagering Requirement
  • 30 Day Expiry Timeframe

Payment methods

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32Red – incREDible Match Welcome Bonus

Get a 150% match up to £150

  • Minimum £10 Qualifying Deposit
  • Debit Card Only
  • Up to x50 Wagering Requirement
  • 7-Day Expiry Timeframe

Payment methods

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MrQ – Welcome Bonus Offer

Sign up and deposit just £10 at to claim 20 Free Spins.

  • Minimum £10 Deposit
  • No wagering requirements
  • Each spin is worth 10p, so that’s £2 in spins completely free.
  • 48 hours Expiry Timeframe

Payment methods

The Bonuses mentioned here are Casino Legends approved for fairness and are offers that may assist in your online gambling experience. Always consider bonus terms of offers before opting in. Claim your preferred welcome bonus today.

How Do Casino Bonuses Work?

Casino bonuses work by simply giving you a certain amount of casino credit to use on eligible games and wagers without the need to use your cash balance. In some cases, however, your cash balance will be used as part of the playthrough before the bonus credit is used. All bonuses that require a deposit fall under wagering requirements. This means that if a bonus has a wagering requirement of x40 you will be required to bet x40 on the initial value of the bonus before being able to withdraw real money obtained through the welcome offer. Initially, the bonus value provided to you as part of the bonus may be used on popular casino game titles but is mostly limited in selections. Generally, live table games and progressive jackpots are excluded. If these games are, however, not excluded from the bonus, they may not contribute much to the wagering requirements, which will cause you to take longer to meet the wagering requirements.

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How Are Casino Match Bonuses Calculated?

Most welcome bonuses from online casinos include a match bonus or either 150% or 200%. If you are looking for the perfect welcome offer, you may have noticed that with the percentage figures, there may also be a maximum limit on the deposit amount that can be matched. As an example, 32Red’s incREDible Welcome Offer has a 150% match for deposits up to £150.

See examples of what to expect through a bonus match in the table below.

Deposit Amount

Bonus %

Bonus Amount

Total Bankroll

£10 150% £15 £25
£100 150% £150 £250
£20 200% £40 £60
£200 200% £400 £600

A match bonus provides you with an amount of credit depending on the size of your deposit. It is important to consider that the higher the amount of bonus you get, the longer duration it will take to finish your wagering requirements and start to win real money.

Guide on How to Claim Your Online Casino Bonus

Claiming your online casino bonus is easily done by first choosing the type of bonus you are considering for your online gambling journey. Whether you are looking for a welcome offer, free spins, a deposit match, or even a no-deposit bonus, the guide below can help you claim your bonus in no time.

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Step 1: Consider Casino Legends Approved Casinos

Casino Legends provides you with the most important details about casinos with the most helpful bonus offers for different types of games. Not only will you find your perfect welcome bonus, but you can rest assured that the casino has been inspected by us for fairness and legality.

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Step 2 – Consider the Bonus Terms

Bonus terms should always be considered before opting in. Consider factors such as expiration date and wagering requirements before you commit.

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Step 3 – Opt-In

The next step in claiming your bonus is to simply opt in for the offer after accessing your preferred casino site.

Types of Casino Bonuses and Promotions

An online casino bonus, no matter what type, can greatly enhance your overall gaming experience, yet some may be more beneficial for your own personal needs. Whether you are looking for the perfect start to an online casino, a deposit without the requirement of a deposit, or simply free spins to stick to the slot games, find your preferred offer below.

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Welcome/Sign-up Bonus Offers – Best For Newbies

Welcome offers are considered by many UK players to be the best casino bonus type if you are only getting into gaming now or new to a specific casino. Welcome offers are there to help you have the perfect start at the casino and assist in gaining experience with different types of games, or you to test out different strategies. Generally, welcome bonuses require you to deposit to qualify for the offer. This, however, is mostly worthwhile as online casinos do not have very high minimum deposit requirements. Welcome offers may be offered as a Match Deposit Bonus, which matches your deposit amount by up to 200%; meaning, if you deposit £10, you can receive up to £20 free bonus money. This can be seen with the 32Red welcome bonus, where you can get up to a £150 match of 150%.

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No Deposit Bonus – Best for Free Gaming

If you are looking to opt-in for a bonus purely for the pleasure of playing casino games without the chance of winning immediate real money prizes, then you will enjoy a no-deposit bonus. No deposit bonuses simply don’t require a deposit and assist you in playing games at no cost. It is, however, important to consider that generally, you will not be able to win real money through a no-deposit bonus, and it would only help as a means to practise games or try new strategies unless there is a wagering requirement which requires you to play through a certain amount and then be able to win real money.

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Free Spins

Welcome bonuses generally have free spins attached to them or are available in mini-games that are built into slots. Free spins can only be used on selected slot titles when attached to a welcome bonus or other promotions and may not be used on progressive jackpots ‘’depending on the casino’’.

Wagering Requirements Explained

Online casino bonuses are essentially given out to assist you in having more ‘’play-time’’ which could increase your potential of winning in the long run. Most bonuses have wagering requirements set out that need to be met before you can win and withdraw real money obtained through the bonus credit. Wagering requirements are generally displayed by the number of times the bonus value will have to be played. Generally, wagering requirements need to be played through up to x50. For example, if you receive a £40 bonus with an x50 wagering requirement, you will be required to wager the bonus value x50 before the terms are met.

It is recommended to always read a casino’s bonus terms and general terms and conditions before opting in for a bonus. Casino Legends only provides information on bonuses by approved casinos with Fair Gambling Policies, such as Unibet and 32Red. Casino Legends always have your best interests in mind. Read our thoroughly researched bonus overviews for a greater understanding of how you can get the most out of different types of bonuses.

More Promotion Types Available To Look Out For

If you sign up with an online casino that is licensed and regulated by the UK Gambling Commission, you can look forward to many fair promotions other than what is most well-known. Trusted online casinos such as 32Red, Unibet, mFortune, and MrQ are among the most generous with promotions. Some online casinos, including Unibet, go as far as to provide their members with promotions around live tournaments in poker games, better odds with horserace betting, and much more. Be sure to stay up to date on the latest offers from trusted casinos and how to get the most from your bonus offers with our Casino Legends bonus overviews.

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General Online Casino Bonus Terms and Conditions

Different online casinos will not have the same terms and conditions in place for their bonus use, but some important factors are considered to be generally in place by most casinos. Some of the most general bonus terms and conditions found with licensed and regulated casinos include having a deposit paid through a particular payment method, adhering to wagering requirements, making a minimum qualifying deposit, and more. By adhering to bonus terms and finishing the wagering requirements, you will be able to experience the best in online gambling with a chance to win real money.

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Casino Bonus FAQ

  • What is a casino bonus?

    A casino bonus is simply a form of free credit which you can use on top of your cash balance at the casino, thus providing you with more play-time and a greater chance at placing a winning wager in the long run. Bonuses may, at times, require a deposit, yet some bonuses are known specifically as no-deposit bonuses, which means you do not have to deposit to qualify for the bonus offer.

  • How Online Casino Bonuses Work

    As a new or existing member of an online casino, you will be presented with various offers where you either need to make a deposit or not. Generally, with deposit bonuses, you will need to meet wagering requirements before you can make a withdrawal of your winnings. As an example, if an online casino bonus of £100 bonus money has a wagering requirement of x40 you will need to wager the bonus money amount x40 before your winnings count as real money.

  • What bonus codes are used to redeem special bonuses?

    Bonus codes are available in affiliate programs to provide customers with a special bonus offer not usually available from the particular online casino. Bonus codes are generally found in the form of a string of numbers and letters which you need to enter in the designated code block when signing up with an online casino.

  • Can I withdraw my casino bonus?

    No. Casino credit may not be withdrawn from your casino account as it is purely provided to you as assistance in getting to know games and being able to play longer to have a greater chance at striking luck. Some online casinos, such as 32Red, do, however, provide you with a choice to withdraw winnings obtained through your bonus at the cost of losing your remaining bonus credit.