400% Casino Bonus Offers in United Kingdom 2026 - Best 400 Deposit Bonus Casinos
The 400% casino bonus is among the offers which UK players are really looking forward to claiming. If you're interested in learning more about all those and if you want to find a new casino site to sign up with and claim a wonderful welcome match offer, we've got some top picks for you.
⭐ 2nd deposit up to £500
⭐ 3rd deposit up to £500
⭐ 10% Cashback at any time
UP TO £500 + 100FS
⭐ Every Monday Up To £200
⭐ Every Friday Up To £300
⭐ Get Up To £500 Code: C500
⭐ Casino Welcome Package £6500
⭐ 10% Cashback Bonus
⭐ Crypto Bonus 100% Up To £1000
150% UP TO £500 + 50FS
⭐ Up To £1000 Sport Bonus
⭐ Up To £1000 Crypto Bonus
⭐ Free Bets & Free Spins
Different types of 400 casino bonuses
The 400 deposit bonus casinos offer you several different varieties of that exciting offer which aren't that much diverse but still have their specifics. So, if you're up to online gambling with the best UK casinos with a 400 percent bonus, check out what your options are.
First deposit bonus offer
The most commonly found 400% deposit match bonuses are the ones which you'd be able to get once you sign up as a new casino and make your initial deposit. Of course, it'll need to stick to the minimum deposit requirements. You might be offered some free spins together with the bonus funds, too, which makes the promotion even more exciting.
Welcome bonus for crypto deposits
Some casinos without Gamstop that accept payments with digital currencies have a special welcome offer for players who make a deposit with crypto. Those are commonly with a high maximum bonus and the fact they match your initial deposit at 400% means that even if you credit just £10, you'll get a £40 bonus amount to use on selected games.
Welcome package
The top casinos that offer you 400% match promotions, though, don't do so when you make a single deposit. They've got a promotional package which allows you to claim the max bonus value along your first several top ups. It frequently features a cash bonus as well as some free spins to use on selected slots.
How to claim a 400 percent match deposit bonus UK?
The 400% match deposit bonus is an offer that's frequently credited on your initial top up which means you'd have to sign up as a new player in order to get this type of promotion. So, get the registration process started and, while filling in the data that you'd neet to enter, check whether you have to opt-in or provide a promo code to claim the offer. If not, after you've registered and logged into your account, go to the bonus section. There you'd be able to find the relevant welcome bonus. Read through the rules and activate the promotion. Then go to the deposit menu, pick a method, provide the data that's needed and pick an amount you'd like to top your account up with. Always keep in mind the minimum deposit required for bonus activation, of course.
Once you've confirmed, the money will reach your bankroll within a few seconds and the bonus will get automatically credited. Of course, if it needs a qualifying wager, you'd need to make it first.
Most important bonus terms and conditions
The best thing you can do is check the bonus conditions even before claiming the promotion. Because there are many important rules you'd need to know, such as:
- Do you need a bonus code? If you do need one, it might be featured in the terms and conditions of the offer.
- What is the minimum deposit amount? It might be the same as the minimum deposit limit in general but it might also be higher.
- What is the maximum bonus amount? There's a max limit on the promo cash you can get and crediting more money than it won't lead to higher bonuses.
- How many times do you need to wager the deposit bonus? With some promotions wagering is 35x bonus plus deposit. With others it's just 15x. Some offers require you to wager the bonus spin winnings a given amount of times, too.
- What are the eligible games? Depending on the casino, the first deposit bonus might be available for selected slots only, for all slot machines within the game library or for some live games, too.
- What is the time limit? You'll have a certain time limit to claim the bonus on your first deposit and then to wager it, too. Make sure you've gotten familiarized with that rule in order to be able to keep up with the expiry period of the promotion.
- What's the max bet with an active bonus? If you wager more than this limit, the bonus amount over that will either not count towards the wagering or will lead you to forfeit the bonus.
Then you'd do well to also check what is the max win limit on the first deposit casino bonus which you'd be able to convert into real money. Any sum above that won't be withdrawable.
Top-notch games to play on casinos with 400 deposit bonuses
If you're up to claiming some top-tier bonuses, rest assured, you'd be able to play on some great casino games, too. Those feature some of the most exciting games available for UK players and let's see what the best sites out there have gathered for you.
Best casino slots
The most popular opportunities are the slots and you'd have access to all the best of them. Readily available are titles by Pragmatic Play, NetEnt, Play'N Go, Blueprint Gaming and many others. With popular games like Starburst, Big Bass Bonanza, Big Bass Splash, Book of Dead, Legend of Cleopatra and so on you've got many choices to pick from. And you'd be getting access to many games with bonus features like multipliers, bonus rounds and even progressive jackpots. Megaways slots are also abundant and same's true about various Drops & Wins or Bonus Buy titles. High RTP slots are everywhere and many high volatility games of Nolimit city are also easy to find. You'd be able to play classic paylines slots, mechanics of the cluster pay type, plenty of pay-everywhere slots and so on.
Table games
Some of the not-so-famous games and the RNG blackjack, roulette, baccarat and poker. They aren't widely played but the collection of them is still quite a good one. And the varieties are astounishing, especially when it comes to video poker. At the same time, though, many other games are also available. Those include bingo, slingo, crash games (think RideX), arcade games like Plinko, mini games and so on.
Live casino games
You'd be able to play on various live dealer games, too. If you fancy cards, your best bet will be blackjack, baccarat and poker. Or you can hit the roulette tables and try to predict the winning number. Game shows are also quite interesting, especially when it comes to titles like Monopoly Live, Crazy Time, Money Wheel and the like.
What payment methods allow you to get a 400 welcome bonus?
To claim the welcome bonus at casino offering it, you'll have to make your first deposit and there are several payment methods allowing you to do so:
- Debit or credit cards
Even though the UKGC-licensed casinos accept debit cards only, with the best non Gamstop gambling sites you'd be able to use to use credit cards, too. Usually Visa and Mastercard are available everywhere while some sites accept Visa Electron and Maestro also. Limits usually start from £10. - Open banking: That's a popular modern feature which allows you to make instant transfers from your bank account. Usually offered on withdrawals, too, it's commonly used for larger sums.
- Crypto: Many sites outside Gamstop provide you with crypto payment options, such as Bitcoin, Ethereum, Litecoin, Dogecoin, etc.
There are also some e-wallets allowed, such as Skrill, Neteller and Paypal. The thing is, they are usually excluded from claiming any of the bonuses.
Benefits of playing at online casino sites that offer a 400 bonus
With the sites that credit you such lump amounts towards your deposit, you'd be getting:
- the chance to try more games without investing more of your real money
- the chance to win more real money on a lower deposit
- a top-tier gambling experience with various other bonuses included
- various payment methods offered with instant deposits and fast withdrawals
- the opportunity to play on mobile just like on desktop
- a great selection of slots, live casino games and table games
Best alternatives to 400 casino bonus UK: Other types of first deposit bonuses and welcome packages
The 400% match online casino bonus is quite hard to find. That is why there are some top-tier alternatives you can pick instead:
- 500% match: That's a promotion where the casino will match your initial deposit with 500%. An even rarer offer, to be honest.
- 300% match: Now here's where you'd be getting more opportunities because various casinos may offer a welcome bonus package that amounts to 300% match in total.
- 200% match: With most of the sites, though, casino players who make their first deposit will be able to get a bonus of 200 percent match.
- 100% match: Those are the most common offers where the bonus value matches the amount of the deposit made.
And while the online casino 400 percent bonuses are quite a good deal, there are many other promotions which can also give you a good boost on your first deposit.
Non Gamstop casino bonus offers vs promotions at UKGC licensed sites
The best non Gamstop casinos are frequently known for their great bonuses. Whereas the size of the bonus you'd be able to get with the UKGC-licensed sites is quite lower, something of the up to £100 kind, the top casinos not on gamstop frequently have max bonuses suitable for high rollers and reaching up to £5,000. If you'd like to learn more about the difference, check out this quick comparison table:
| UKGC-licensed sites | non Gamstop casinos |
| Lower max bonuses | Higher max bonuses |
| Often only up to 100% match | Usually over 100% match |
| Welcome bonuses commonly feature free spins only | Welcome bonuses frequently include free spins and cash bonuses |
| Wagering requirements vary | Usually wagering is 35x deposit plus bonus |
| Crypto payments not allowed | Sometimes offer special crypto first deposit bonuses |
| Usually on first deposit only | Frequently featured as welcome bonus packages |
Responsible gambling with the best casino 400 bonuses
Regardless of the match offer you're claiming, responsible gambling is always a must. In order to help you play safely, the top gambling sites provide you with:
- the option to set up deposit limits
- the opportunity to place limits on your losses or on money spent playing
- the chance to set up reality checks
- time-out periods
- a self-exclusion option
Make use of those to stay on track and don't risk more than you can afford to lose.
Best 400% match deposit bonus casinos: Which are the top sites offering you 400 percent promotions for casino games?
Since 400% match offers are rarely found, here we're going to show you some of them along with other casino sites which you can check out and claim great bonuses, even if not with such a huge match towards your first deposit.
- Betswagger: This top-tier gambling site has some of the most massive bonus offers with 100% match up to £5000 for casino games credited along with 100 free spins.
- Rolletto: There's a top-notch welcome bonus package with Rolletto where you'd get a total of 225% match towards your first three deposits.
- Freshbet: Freshbet casino has several separate promo offers such as 150% on first crypto deposits for up to £500 and 100% match offer for up to £1,500 of first top ups with fiat currencies.
- Mystake: Mystake casino is one of the best casinos without Gamstop which features a massive welcome bonus for its new customers worth 300% up to 1,500 euro.
- Goldenbet: Goldenbet's got top-tier bonus offers which allow you to claim hundreds of free spins (and claim those weekly even).
- Cosmobet: Now here's where we reach the 400% match offer which credits you up to 2,000 euro along your first four deposits and up to 1000 free spins.
- 30bet: 30bet's got casino fans covered with 100% match up to £100 for casino games along with 50 free spins and a 100% live casino bonus up to £300.
- Qbet: At Qbet casino fans will be able to play top-tier slots with extra bonus funds on a 100% match towards their first deposit up to £100 in max bonus funds that come together with 50 free spins.
- GQbet: GQbet features a wonderful welcome bonus which doubles your first deposit up to £500 and gives you 100 free spins, too.
- Velobet: Players at Velobet will also be able to claim a massive welcome package offer which gives you 330% along your first three deposits for a max of 2,000 euro and credits you 300 free spins, too.
Along with all those promo offers, on the top-tier gambling sites on our list you'd discover many opportunities, too. Starting with free spins and extra bonus cash and going up to some of the best VIP offers you can imagine.
400% casino offers FAQs
Are there any other bonuses with the best sites offering 400% match welcome packages?
Every online casino UK site offers different other promotions, too, that you'd be able to get along with the 400% deposit match. Those include various free spins, cashback, rakeback, reload offers and interesting tournaments or daily free games.
How much free spins can I claim with an online casino welcome bonus?
With some first deposit bonuses the casino can also credit you a given amount of free spins but their exact number depends on each particular site and the given bonus terms and conditions.
Do I need a promo code to claim the bonus money?
In most cases the bonus can be used without you having to input any promo codes. And sometimes bonus codes are needed but offered by the casino site itself.
Are there welcome online casino bonuses with no wagering free spins?
There are all sorts of online casino bonuses, including some that credit you no wagering free spins on sign up and first deposit.
