Best Online Casino Bonuses UK July 2025

Types of Casino Bonuses

When you play online, you’re opening yourself to a new world of casino bonus offers. With reduced operating costs, online operators can afford to incentivise further playing on their platforms by offering top online casino bonuses.

Why do operators give bonuses? It’s simple, bonuses mean more deposits, and when you’re having more fun playing online, you’re more likely to play. It’s a win-win scenario. Let’s look at some of the most common UK casino bonuses you can score as a player at the best online casinos.

Welcome bonus

The online casino bonus sign-up deal is the first offer you’ll get as an online player. Every online casino offers something different, so it’s key to compare deals to get the best.

Usually, a casino welcome bonus is a deposit match of 100%. When you register and deposit the minimum to the maximum amount, the operator will match your deposit 100%.

This deal comes with wagering requirements, time limits, and potentially max bet and payout rules, which are critical to understand and take note of – we explain them in more detail further down the page.

Deposit bonuses

Let’s take an example:

• Deposit £10-1,000 and get a 100% cash match with 15x wagering requirements on withdrawals.

If you decide to sign up and deposit £100, your new casino account now contains £200 to play with. And if you instead deposit £300, you’d have £600 to play with. Deposit deals also feature as a casino bonus for existing players, but the match percentage is lower when it’s an ongoing promo, 20-50%.

No deposit bonus

No deposit bonuses are also a form of a welcome bonus, but these deals are even better. If you’re looking for a casino bonus that lets you play for free and win real money prizes, you want an online casino bonus no deposit UK offer. However, as an online casino no deposit bonus gives you free cash without the need to deposit; they are often smaller promos than matched deposit bonuses, maxing out between $10-50.

Let’s look at more of the online casino bonuses available for existing players. After the welcome bonuses, this is one of the most common ways casinos tempt you to play more.

Registered Players: VIP bonus & loyalty bonuses

VIP and loyalty clubs can be big earners for casino regulars. These reward every wager you make online with loyalty and tier points that you can later exchange for bonuses. The tier rewards equate to a level, and each comes with progressively better perks, like free spins, bigger withdrawal limits, and better conversion rates.

A loyalty club is essential for VIPs and high rollers; it can lead to plenty of significant bonuses and perks, such as a personal account manager.

Deposit Lotteries

Deposit bonuses come in all sizes and shapes. They are the number one online casino bonus you’ll find at gambling sites. Whether it’s a lottery, wheel spin, prize draw, or reload offers, you can get a better deal with each deposit at the best online casinos.

Cashback

Cashback online casino bonuses are an awesome form of deposit deal. Most cashback bonuses work by refunding a percentage of your losses over the promo period. All you need to note with this top casino bonus is that the refund is on net losses, so your total when all wins are subtracted.

High roller bonuses

High roller bonuses are bigger, better and come more often. As we pointed out earlier, a VIP club is essential if you’re a high roller. However, if you’re playing at a casino without a club, then ensure the upper caps on bonuses are high and suitable for your playing budget and style. If not, consider another UK online casino.

200% casino bonus

The UK online casino bonus scene is highly competitive, so it is possible to find the best online casino bonuses and reload deals that offer up to 200%. If you’re looking for casinos that provide sky-high bonuses, look at the options in our toplist and pick an online casino bonus to claim!

How to claim a Bonus in the UK 2022

Every online casino has a promo page. This is where you’ll find all their offers listed, alongside the terms and conditions (bonus rules) and instructions on how to claim each. Some online casinos may also use casino bonus codes to award offers. A bonus code is like a password to claim a unique bonus.

Your first point of call when checking for bonuses is the promos page. You can also register for a UK online casino’s marketing emails to get all the latest info and online casino bonus codes straight to your inbox.

Claiming a bonus step by step:

• Go to the promos page
• Look for a bonus you’re interested in
• Click on the offer and read the rules and terms.
• Follow the deposit instructions
• Start playing!

Wagering Requirements

Wagering requirements (WR)are the withdrawal rules associated with a bonus. These prevent you from taking a cash bonus and withdrawing immediately. The WR is a multiple, like x15.

In this case, if you deposit £100 with a 15x requirement, you have to playthrough £1,500 to withdraw any winnings made with the bonus.

More recently, there’s been a greater debate within the industry about whether WR create encouragement for excessive gambling, which has been pointed to by the UKGC.

Our advice is to look for the lowest requirements on any deal, as these are the most flexible withdrawal conditions.

Special shout out to no wagering casinos: No wagering bonuses and casinos are those sites and deals that come without wagering requirements. These operators are boldly striking out and making future online casino bonuses fairer for all!

Maximum Win

Maximum win conditions are a more predatory clause that we’re not fans of at CasinoReviewers; when this condition is present, you agree to a maximum win condition on the bonus as the casino states.

The Minimum Deposit

Minimum deposit limits are standard. To get an online casino bonus, you must make the minimum deposit as stated in the terms and conditions.

Restrictions on Payment Methods

You may also find that a casino limits the type of payment method with which you can claim a deposit. To avoid issues, double check your method isn’t listed before you opt-in and claim a UK online casino bonus.

Restrictions on the Game

This is a bigger term and condition to know about; most online casino bonuses will list a game contribution rate (GCP) for games and exclude some from us in a bonus.

• GCP: This is how much a game contributes to the wagering requirements. Slots are usually 100%, and table games are 20-50%.
• Excluded games: Those not included in the GCP or named as excluded from wagering cannot be played with bonus money.

Expiry

Every online casino bonus has an expiry date, and rightly so; it keeps things moving along and lets UK casinos launch new promos regularly. However, the time limit must be fair, as you’ll have to meet any wagering requirements in it. 30+ day deals are the best casino bonus expiry terms.

Betting Limit

Like the max win limit, this rule is more controversial and commonly used by online casinos in bonuses. The bet limit states the max amount you can bet on one round, hand, or spin using bonus money. You need to know the limit, agree it is fair, and keep to it. Otherwise, you could find your bonus and any winnings void.

Summary

• Online casino bonuses are one of the best ways to enhance your online gambling experience, but what’s on offer changes at every gambling site.
• You need to select a UK online casino that has top deals and fair terms (see our casino recommendations for the top picks).
• The terms and conditions are the rules you agree to in using a bonus, so check the wagering requirements and other significant terms before depositing.
• Remember that after the online casino bonus sign-up offer, you can use casino bonuses for existing players to enjoy free spins, cashback bonuses, tournaments, reload offers, VIP clubs, and more.
• Compare casinos to make sure you get the best online casino bonuses for your budget and playing style. Once you’re happy with your pick and the bonus potential, register to play and let the online rewards stack up.

Latest news from Casinoreviewers.com

The latest news articles about online gambling in the UK

17 March, 2023

There’s a need for responsible gambling — ICE London 2023

The International Casino Exhibition (ICE) of 2023 took place in London in February, drawing over 40,000 attendees worldwide. Its theme was ‘Stronger Together’, and responsible gambling was its focal point. Here, the campaigners claimed that the gambling industry was not doing enough to address the issue of gambling addiction. The Consumer Protection Zone (CPZ) comprised […]

Read More

17 March, 2023

Yggdrasil and Jelly launch Fury of Hyde Megaways that brings the 19th Century London to life

On 21 February 2023, Yggdrasil and Jelly, two highly reputable real-money gaming studios, signed an agreement and released a fascinating online slot, Fury of Hyde Megaways. This is the first Curious Cases Series slot depicting London’s 19th-century dark time when famous killers wandered the city’s dark streets with the untouchable Mr Edward Hyde at the […]

Read More

17 March, 2023

There’s a need for responsible gambling — ICE London 2023

The International Casino Exhibition (ICE) of 2023 took place in London in February, drawing over 40,000 attendees worldwide. Its theme was ‘Stronger Together’, and responsible gambling was its focal point. Here, the campaigners claimed that the gambling industry was not doing enough to address the issue of gambling addiction. The Consumer Protection Zone (CPZ) comprised […]

Read More

17 March, 2023

Yggdrasil and Jelly launch Fury of Hyde Megaways that brings the 19th Century London to life

On 21 February 2023, Yggdrasil and Jelly, two highly reputable real-money gaming studios, signed an agreement and released a fascinating online slot, Fury of Hyde Megaways. This is the first Curious Cases Series slot depicting London’s 19th-century dark time when famous killers wandered the city’s dark streets with the untouchable Mr Edward Hyde at the […]

Read More

Still Unsure if You Should Claim a Casino Bonus?

Check out our guides for No Deposit Bonuses, Free Spins, or Cashback. Alternatively, you can learn more about the popular no deposit bonus in the video below. Best of luck!

Casino Bonuses in the UK FAQ

Below are our answers to some of the most common questions asked about UK casino bonus offers.

How do I find the best casino bonus?

At CasinoReviewers, we make it our business to know the best UK casino bonuses out there. From the best online casino bonus no wagering offers to welcome promos up to 200%, cashback deals, and the best online casino bonus codes, to learn more and find the best bonuses start exploring our site!

What are wagering requirements?

Wagering requirements are a common casino bonus rule that prevents you from taking a cash bonus and directly cashing out. The wagering requirement is the amount you must first playthrough before you can withdraw money made using an online casino bonus.

What is a no wagering casino?

A no wagering bonus and casino is a site or deal without wagering requirements. This type of bonus and casino site is becoming popular for obvious reasons. However, you might find that due to ditching the wagering requirement, the UK casino bonuses as these sites are lower value.

Is it worth taking casino bonuses?

It is worth taking online casino bonuses when they come with fair terms and conditions and will enhance your play. Generally, the lower the wagering requirements, the better. Look for online casinos with plenty of offers that match your style and will add something to your casino experience.

What are the best online casino bonuses?

Casino bonuses come in all different forms; it’s one of the ways UK online casinos differentiate themselves. Bonuses are subjective to your playing style and budget. You’ll find sites offering matched deposit offers, no deposit deals, free spins, loyalty, VIP clubs, reload bonuses, cashback offers, tournaments, prize giveaways, and much more. Get in on the action and pick a UK online casino to play at now!

Are casino bonuses fair?

If you stick to licensed UK casinos for gaming, all legitimate sites will have fair casino bonuses so you do not get scammed.