Discover the Newest 400% Casino Bonuses

Unibet Casino Logo
1
Play

4.1 / 5

Min. Deposit

£10

Wagering

50X (Bonus)

Match Pecentage

400%

Online Since

1997

Bonus Terms

To claim the bonus, you must opt-in within 24 hours and use it within 30 days before it expires. After receiving the promotion, you will have to wager it 50 times before a cashout is possible.

Pros & Cons

Pros:

  • You acquire a £40 bonus for just a £10 deposit

Cons:

  • High rollover of 50x
Bonus Verdict

This bonus is perfect for those just getting started in the gambling world since players receive £40 for just a £10 deposit. Unibet Casino also set a 30-day expiry time, leaving punters enough time to wager their promotion.

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18+ begambleaware.org. New Customers only. Minimum Deposit £10 and Get £40 in Casino Bonus Funds. Debit card only. Up to 50x wagering, game contributions vary, max. stake applies, new customers must opt in and claim offer within 24 hours and use within 30 days T&C Apply, 18+
Foxy Games Casino Logo
2
Play

3.9 / 5

Min. Deposit

£10

Wagering

40X (Bonus)

Match Pecentage

400%

Online Since

2015

Bonus Details

After registration, you have 7 days to deposit and stake £10 on any slot game to receive a £40 slots bonus. You must wager the bonus 40x times only on selected games, excluding jackpot slots.

Remember to complete the wagering within 7 days. The spins come with no wagering and must be used only on Lock o’ The Irish. Each spin is worth £0.10.

Pros & Cons

Pros

  • Spins have no wagering
  • 7 days to collect the bonus is enough time
  • The bonus works on numerous games, including exclusive ones

Cons

  • 40x wagering is on the higher end
Bonus Verdict

This offer works great for UK players who want to try out different slot games, especially exclusive ones. What’s more, the spins have no wagering, meaning all the winnings go straight into your cash balance.

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New customers only. Spend £10, get £40 Slots Bonus (40x Wagering, selected games) + 40 Free Spins (Value £0.10 each, selected games). Claim & use within 7 days. T&C Apply, 18+
Gala Bingo Logo
3
Play

4.0 / 5

Min. Deposit

£5

Wagering

40X (Bonus)

Match Pecentage

400%

Online Since

2008

Bonus Policy

You must deposit and wager £5 to get a £20 bonus and 50 spins. The spins have no wagering requirements, and the bonus funds must be wagered 40 times within 7 days.

You can use the bonus cash on slots of your choice, while the spins can be used only on the selected slot games.

Pros and Cons

Pros

  • The spins are wager-free
  • The minimum deposit of £5 is low
  • You can use the funds on any slot of your choice

Cons

  • The spins are limited to the selected slots only
  • You have 7 days to meet the wagering requirements
Bonus Verdict

This welcome bonus is a great option for slots players, as they get both funds and no-wagering spins to use on slot games. The minimum deposit of £5 makes this promotion worthwhile, but keep in mind to wager the bonus funds within 7 days.

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18+. New customers only. Dep & spend £5 to get £20 slots bonus (40x wagering, valid 7 days, selected games) + 50 Free Spins (£0.10 value each, selected games only, accept & use within 7 days). Payment methods restrictions and T&Cs apply. T&C Apply, 18+
Coral Casino Logo
4
Play

3.9 / 5

Min. Deposit

£10

Wagering

40X (Bonus)

Match Pecentage

500%

Online Since

2002

Bonus Details

New players at Coral Casino can deposit £10 and receive the first deposit bonus. This offer will expire within 30 days.

The promotion carries 40x bonus wagering conditions. The operator does not mention a limit on the withdrawal amount.

Pros and Cons

Pros

  • A high percentage of 500% of the offer
  • A reasonable £10 minimum deposit
  • The offer has an extended lifetime of 30 days

Cons

  • The playthrough requirements of 40x are pretty high.
Bonus Verdict

Coral Casino has a great welcome offer with a high match percentage of 500% that can suit newbies and seasoned punters since the qualifying deposit is a reasonable £10. Although the 40x rollover can be challenging for inexperienced punters, they have up to 30 days to meet the conditions.

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New Casino players only. Deposit req (certain types excluded). Bet £10+ on qualifying games to get a £50 Bonus (selected games, 40x wag req, accept within 14 days, valid for 30 days) T&C Apply, 18+
mail

Only by email

4.5 / 5

GET 100 FREE SPINS NO DEPOSIT - Only By Email

This offer is available only by subscribing.

Your e-mail will not be shared with any third parties. By adding your e-mail you agree to receive daily casino promotions, and this will be the sole purpose it will be used for.

Unlock the Best 400% Deposit Bonus UK at Unibet Casino

Take advantage of the Unibet 400% deposit bonus offer to enhance your gaming experience. Deposit £10 and receive an extra £40 in bonus funds to get you started.

Pros

  • Enjoy a substantial match of £40 on a modest £10 deposit.
  • Bonus funds can be used on any slot games available on their platform.
  • The long validity period of 30 days is great.

Cons

  • The bonus funds come with a high wagering requirement of 50x.

Our Verdict on Unibet’s Offer

Our team finds this offer to be highly appealing for UK players, considering it’s coming from the renowned Unibet Casino. The 400% deposit bonus is a rarity in the UK market, making it a standout deal.

However, it’s crucial to note the 50x wagering requirement attached to the bonus, which could be challenging for some. Such high deposit matches are generally better suited for experienced British punters familiar with meeting promotional conditions. If high wagering requirements are daunting, we suggest exploring our list of low-wagering bonuses.

If you find the wagering challenging, we also included no-wager free spins in our database for a more suitable alternative.

Why Choose Unibet as Your 400% Deposit  Bonus Casino?

We recommend Unibet Casino to players who appreciate flexible payment options. With a minimum deposit of just £5 and equally low minimum withdrawals, it’s accessible for all. You can explore a vast collection of over 1900 slots and 250+ live tables. Additionally, their 24/7 live chat support ensures you can resolve any account issues at any time.

On the downside, there is no VIP program for existing player rewards. Also, Unibet processes withdrawal requests within approximately 24 hours, which is way faster than the industry average of 2 days. If fast payouts are essential for you, consider our other recommendations for quick payout casinos.

For more detailed information on the top-notch gaming website, refer to our comprehensive Unibet Casino review.

Foxy Games Welcome Bonus – Best Alternative

If you want to explore other similar alternatives to our first pick, Unibet. You can browse our ranking or go straight to the promotion page of Foxy Games. You will find a similar 400% match offer with a slightly less challenging rollover of 40x and 40 wager-free spins to make your journey on the website seamless.

How We Review a 400 Percent Bonus Casino

How We Review a 400 Percent Bonus Casino

Want to know more about how we review casinos with 400% bonuses? We have simplified our criteria to help our subscribers understand our research methods. Vlad George Nita has gathered factual data to show you that we provide the best 400% casino bonuses.

We started from a list of 20 bonuses, and after testing each site, the selection was trimmed down to 4. Our experts check each site for at least 5 hours, aiming to meet the wagering and cashout.

Please take a look at our tools of expertise.

Minimum deposit offer and bonus value

British players must deposit a minimum amount to activate their 400% bonuses. We strive to select offers with the lowest possible minimum deposit. Yet, this value may differ from one casino to the next, ranging from £5 to £20.

Payment options

Most operators limit the types of payments you can use to claim a bonus to debit cards and one or two e-wallets. However, there should be some flexibility.

Wagering requirements

The appealing 400% first deposit welcome bonus percentage usually comes with high wagering requirements. However, we always prioritize the most convenient offers when researching 400% deposit bonuses in the UK.

Eligible games and bets

Our experts know which casino games you should play to clear out playthrough requirements faster. So, a vital part of our methodology is checking the bonus policy for eligible games. 400% first deposit bonuses that allow you to play many game types get extra points from our reviewers.

Cashout limit

Online casino play is not a source of income, but it’s a good idea to play with a goal in mind. Our experts analyze cashout limits for each 400% match bonus we recommend, anticipating a value of at least 5 times your initial deposit.

Bonus Availability

Besides our deep expertise regarding the deposit, cash out limit, et cetera, one key factor that helped us clearly see a casino’s fairness is the casino welcome bonus, how generous the prize can be, and how the casino’s authority writes the bonus policy. If a casino doesn’t have a bonus available, in many cases, that casino is something that you don’t want to visit.

Our Testing Process for 400% Casino Bonus Offers

Without exception, our Best UK casino bonuses must pass a multi-step testing procedure. A closer view of our process will help you decide whether you should deposit and get a 400% bonus.

Our Testing Process for 400% Casino Bonus Offers

  • Research phase: Our team first gathers a list of operators that give out 1st deposit bonuses with a 400% match percentage. Then, the list is filtered only to feature legit United Kingdom casino operators.
  • Account creation and KYC: The first step of the actual review process is creating and verifying an account following the casino’s terms and conditions.
  • Real money deposit: When all prerequisites are met, we casino with a 400 the minimum eligible amount and activate the 400% bonus. This way, our testing phase mirrors the average British player’s experience.
  • Playing different casino games: With 400% bonuses, your bankroll multiplies 5 times so you can play quite a few games even with a low deposit. That’s what our experts do. We play the resulting balance in different games, noting the technical performance.

Choosing the Best 400% Deposit Bonus For You: 5 Tips

Choosing the Best 400% Deposit Bonus UK For You: 5 Tips

  1. If you want to choose and try out a new online casino in the UK, first ensure it’s licensed.
  2. Next, to determine if the 400% welcome bonus fits you, look at the key terms and conditions.
  3. Pay close attention to the wagering requirements, which specify how many times the bonus amount must be bet before winnings can be withdrawn.
  4. Also, remember to check the eligible games – some bonuses may exclude live dealer and table games.
  5. Another thing you should keep an eye on is the maximum cashout limit, which caps the amount you can withdraw from the bonus wins.

But this is not all. Other factors like the bonus validity period, minimum deposit, and eligible countries can also impact the value of the bonus and your possibility of using it.

Key Terms and Conditions of 400 Match Bonuses

Terms and conditions Explanation
Limited bonus value The value of a 400% bonus rarely goes over £100 in bonus funds, which may be lower than 300% or lower percentages.
Potentially high wagering requirement Since the deposit multiplier is so high, you can expect to wager the bonus 40 times or more
Excluded slots from bonus wagering Playing excluded games will lead to your bonus winnings being cancelled.
Low contribution to wagering in table games and video poker Table games may sometimes be excluded entirely from wagering, or they will contribute around 5 to 15%.
Limited contribution to wagering in live dealer games For most 400% casino bonuses, the bets you place in live games will only count around 2-10% of their value.
Excluded bets Some bets may cancel your bonus, for example, even money in roulette and doubling in slots.
Maximum bonus bet amount Generally, you should bet less than 10% or £5 to stay on the safe side. You can only keep what you win if your bets do not exceed this limit. A few UK casinos may have a £2.5/bet limit.
Restrictions on payment methods Debit cards are likely the only accepted form of payment. The most common restrictions are Skrill and Neteller, which cannot be used to claim promos at many casinos.
Maximum cashout limit Your final payout will be capped if you complete the wagering and win more than the limit.

The key to making the most of 400% deposit bonuses in the UK is to pay close attention to the fine print. Before diving in, we recommend you take the time to thoroughly review the terms and conditions of any offer, so you can grasp exactly how it works. Typically, you can find these details either below the bonus description or in the promotions section of the website.

After finding them, compare the wagering requirements, eligible games, maximum bet, and other rules across a few sites from the UK to see which offer best suits your playstyle and wishes.

Keep an eye out for any excluded slots that don’t contribute to the wagering requirement. Additionally, take note of any restrictions or reduced contribution rates for table games. Usually, the contribution for such game types is around 5 to 15%, which is not exactly lucrative.

Apart from game limitations, be mindful of factors like maximum cashout limits, minimum deposit requirements, casino bonus codes, and time constraints that may apply.

Understanding these terms upfront allows you to assess whether the 400% bonus suits your gaming style and budget before signing up. If you’re unsure about anything, we recommend you don’t hesitate to reach out to customer support for clarification.

Top Slots to Play on a 400% Deposit Bonus Casino

Top Slots to Play on a 400% Deposit Bonus Casino

You can play many low-stakes slots with a 400% casino bonus, but remember to check the terms and conditions for game contributions and excluded games.

High-rollers looking to profit the most off creating their account for the first time can benefit from 400% deposit bonus percentages. However, remember to keep your stakes on the low end to avoid being classified as a bonus abuser because generous bonuses come with high responsibility.

Eligible slot games at most UK casinos

Top slots to play with 400% bonuses

  1. Immortal Romance (Microgaming)
  2. Finn and the Swirly Spinn (NetEnt)
  3. 9 Masks of Fire (Microgaming)
  4. Fire Joker (Play’n Go)
  5. Starburst (NetEnt)
  6. Rainbow Riches (Barcrest)
  7. Book of Dead (Play’n Go)

UK casinos with 400% deposit bonuses let you play these slots without exception. Claim Book of Dead spins with no deposit before you commit financially.

Frequently excluded slots

  1. 1429 Uncharted Seas (Playtech)
  2. Blood Suckers (NetEnt)
  3. Untamed Wolf Pack (Microgaming)
  4. Dead or Alive 2 (NetEnt)
  5. Beautiful Bones (Microgaming)
  6. The Wish Master (NetEnt)
  7. Eye of the Kraken (Play’n Go)

Using 400% Bonuses on Table Games and Live Dealer Games

Using 400% Bonuses on Table Games and Live Dealer Games

UK players who prefer card games or roulette can play with their 400% deposit bonuses. Still, the wagering progress will be more challenging due to the limited game contributions.

The highest contributions for live games may reach 10%, and you’ll find them at the best live dealer casinos in the UK.

Live Dealer Casino Welcome Package Alternatives

Our experts have tested diverse live dealer casinos’ welcome offers in the UK industry to provide you with more quality casinos with different bonuses. All you have to do is visit those casinos and make your first deposit. The prizes are very generous, and you don’t need a promo code.

Best Top Live Dealer Casino Bonus Type Wagering Max. Withdrawal
Mr.Play Casino 200% up to £40 35x Not Mentioned
Voodoo Dreams 100% up to £50 30x £500
21.co.uk Casino 100% up to £50 + £6 live casino chips 40x £50 from chips

While these bonuses match your deposit by 400, some of the bonuses we recommended have a relatively high minimum deposit of £20. Play with a lower 10-pound minimum deposit amount on a live casino that’s equally good.

Live dealer games wagering contribution

Live dealer games Wagering contribution
Immersive Roulette (Evolution) 50% (Caxino Casino)
Lightning Roulette Live (Evolution) 10% (Dunder Casino)
One Live Blackjack (Pragmatic Play) 10% (888 Casino)
Speed Roulette Live (Evolution) 8% (JackpotCity Casino)
Speed Baccarat Live (Evolution) 50%
Dream Catcher (Evolution) 50%
Deal or No Deal Live (Evolution) 50%
Payment service Deposit range Cashout range Cash-out processing time
VISA £1 – £10,000 £1 – £10,000 1-3 days
Mastercard £1 – £10,000 £1 – £10,000 1-3 days
PayPal £1 – £5,000 £1 – £5,000 Instant – 1 day
Skrill £1 – £5,000 £1 – £5,000 Instant – 1 day
Neteller £1 – $5,000 £1 – £5,000 Instant – 1 day

Remember that to qualify for the 400% welcome bonus, your first deposit must be made using an approved payment method. Accepted methods include credit/debit cards, bank transfers, and a few selected e-wallets. However, please note that deposits made via Skrill, Neteller, and prepaid cards do not qualify for the bonus.

Furthermore, if your initial deposit is made at a PayPal casino, your maximum bet may be reduced to £2.5 while clearing wagering requirements. For additional details on payment requirements, you can use the table below to double-check the restrictions associated with the 400% welcome bonus.

Proven Strategies for Avoiding Bonus Abuse

Proven Strategies for Avoiding Bonus Abuse

Using bonuses can be a great way to max your winnings withouh breaking the bank. However, an overusage of this bonuses can become a nightmare. This is when bonus abuse happens.

Bonus abuse refers to unfair tactics used to try to profit from casino promotions beyond their intended purpose. This is strictly prohibited and can lead to bonus forfeiture, winnings cancellation, and even account closure. The good news is that bonus abuse can be easily avoided if you follow a few guidelines:

  • Do not claim multiple accounts to get around bonus limits
  • Avoid bonus cycling by requesting a payout as soon as wagering is complete
  • Do not claim bonuses to cash out without playing
  • Do not use automated bots or scripts to exploit bonuses
  • Read and understand all terms and conditions before opting in
  • Play bonus funds through naturally by placing real bets
  • Do not hedge bets by wagering on multiple outcomes
  • Do not collude with other players to swap bonus funds

By staying within the rules and spirit of any promotion, you can fully enjoy the benefits of bonuses at any online casino. So, as always, stay gamble aware!

Explore Alternative Casinos with Different Deposit Match

While 400% deposit bonuses have potential, they can also impose very high wagering requirements and limiting terms, which is where the best alternatives may become interesting for you. For many players, clearing a 400% bonus is unrealistic and takes away all the magic of the 400% deposit bonus.

Similarly, some inexperienced players may simply want to start with a smaller multiplier like the 300% bonus or 200% deposit offer or 100% deposit offers to test out a new casino and become more confident in their gambling skills.

Regardless, our KingCasinoBonus experts selected other casino bonuses with different deposit match percentages, so you can choose which one is the best for you.

  • 250% up to £35 at Kaiser Casino – Use bonus code “250” on your £10 first deposit to unlock the 250% match. While not the largest bonus, the reasonable 35x playthrough helps offset the lower cap. This bonus is worth claiming if you want to get both lower wagering and high match.
  • 200% up to £40 + Spins at Trada Casino – Enter “200UK” with your £20 deposit to claim a 200% bonus plus 100 Book of Dead spins. Despite high 60x wagering, the free spins available on one of the most popular slots in the UK add significant value. However, if you are not necessarily fond of Book of Dead and you want better terms for bonus funds, you should check out other 200% match bonuses.
  • 100% up to £200 at MadSlots Casino – This very common 100% match gives you 2x your deposit up to £200. With only 30x rollover, this bonus makes it easier to withdraw your funds. We recommend all beginners start out with this low wagering promotion, then move on to up to 500% match casino bonuses.

King’s Final Verdict on 400% Deposit Bonus Casino Sites

When reviewing 400% welcome bonuses, our KingCasinoBonus.uk experts take a meticulous approach to analyzing the terms and conditions. While the multiplier is always thrilling, the reality often reveals strict wagering requirements, game restrictions, and low withdrawal limits attached.

A typical 40-50x playthrough on just slot bets means clearing these bonuses requires a great deal of experience. Moreover, casual players may struggle to redeem winnings if you consider the low 5 to 10% table game and live dealer contributions. While bonus funds are typically meant to be used on a multitude of game types, the low wagering contributions on these game variations will clearly keep you from exploring them.

While possible, cashing out from a 400% match is statistically unlikely for the general player. Our advice is to target 100 to 250% offers boasting more favourable terms overall.

Pros

  • By claiming a 400% welcome bonus, you’re getting a large match to your initial deposit, increasing your balance significantly.
  • With extra bonus funds in your account, you can try out more games and gain a better understanding of the casino.
  • When redeeming deposit match bonuses, you’re not limited to just one game. You can use the 400% match to explore a variety of options and find the ones that suit your style best.

Cons

  • Meeting the 40 to 50x wagering requirements can be quite difficult, especially if you don’t have much experience with casino bonuses
  • In general, higher deposit matches have lower maximum cashouts. If your bonus winnings exceed the cap, you will only get the max cashout amount.
Vlad George Nita is the Lead Editor at KingCasinoBonus, bringing extensive knowledge and expertise of online casinos & bonuses. He applies his extensive industry knowledge into providing valuable, accurate casino data and dependable recommendations of bonuses strictly based on UK players' requirements.
Ionut Catalin Marin is the CEO of KingCasinoBonus and a trusted authority in the UK online casino scene. With +7 years of experience in the industry, he meticulously evaluates, rates and compares online casinos to provide British players with an accurate and user-focused list of the best casino sites and bonuses.