Casino Bonus: Free spins & Casino Sign Up Bonuses May 2025

The popularity of online casinos now rivals that of sports betting sites in the UK, and thanks in part to the wide variety of game-play options, from online slots to blackjack and roulette. What better way to celebrate the release of a new game than a brand new casino offer? Free spins and leaderboard promotions are a common way for casinos to generate some buzz around the latest titles, and they’re usually targeted at online slot players. With so many top online casinos in the UK to choose from in May 2025, you can expect brand new casino promotions daily. This is great news for anyone looking to enhance their online casino gameplay with the latest giveaways, competitions, prize draws and free spins no deposit offers. Wagering requirements are perhaps the most significant restriction you’ll come across with bonuses.

👉 How we picked the best casino bonuses and welcome offers

Stake applies, new customers must opt in and claim offer within 24 hours and use within 30 days. Claim exclusive bonuses, including free spins, no deposit deals and generous deposit matches – all designed to give you the best possible start. Because high-roller bonuses are so much bigger than regular bonuses, they naturally have heavier and bigger wagering requirements as well.

• Decide if you prefer bonuses requiring an upfront deposit or no-deposit bonuses.
• Find casino bonuses, ranked by our experts using real player insights.
• This means that you can cash out everything after using the rounds.
• You may need to deposit more to continue playing and activate and withdraw the bonus.

LottoGo – 100% up to £200 & 200 Free Spins

An eye-catching 100% deposit match bonus with no maximum cashout awaits new players at Fun Casino, which can give you up is only official 4rabet to an extra £123 to play with. Simply deposit £10 using any payment method other than Neteller and Skrill (which have been excluded from the offer) to get your hands on it. You can take advantage of a 200% deposit match of up to £200 when you first join 888 Casino, alongside 30 no wagering free spins. The former requires a minimum deposit of £10 and can be used on selected slots, and must be claimed within 48 hours of creating an account.

up to £200 Bonus

We follow all the major UK casino sites with our advanced monitoring tools to track fresh bonuses before they expire. Once we find new deals, we put our expertise as industry veterans to the test verifying their details. With CasinoBonus.com, you’ll never miss out on the newest and best UK casino bonuses. Our list of the newest offers for UK players is dynamic and updates automatically as new promotions are released. The rarest of all casino offers, providing very little value to either you as a player or the casino itself. Always attached to a heft wagering requirement, they sound great, but what you see is what you get.

Use Gambling.com to compare the latest casino bonuses, read expert reviews and find the best deals. Make smarter decisions and get more from every spin, bet and bonus. Below is a quick overview of what is changing and how it may affect players looking to claim a casino sign-up bonus or other casino offers in 2025.

Some online casinos exclude certain games altogether from the wagering, so this is definitely something to read up on in the small print. For the high-rollers out there, matched deposit bonuses are likely to be your first choice of bonus. If you’re taking your first steps into the world of online casinos, no deposit bonuses, free spins, and low wagering bonuses will likely appeal most. A matched deposit welcome bonus sees casinos match your first deposit with additional cash at a specified rate. Matched deposit bonuses are displayed using a percentage to show how much bonus cash you could earn, ranging from 25% up to 500% at some online casinos.