21 Casino Bonus Codes Welcome Bonus

  • 100% UP TO £500

    Wagering: 40X
    Min deposit: £10
    More details
    Bonus info
    Min deposit£10
    Wagering40X (Deposit + Bonus)
    Max cashoutN/A
    Important Terms
    • You need to follow our link to activate this bonus successfully.
    • A minimum deposit of £10 is required to qualify for the bonus.
    • The maximum bet allowed while using the bonus is £5.
    • Bonus funds must be used within 30 days, or any unused amount will be removed.
    Bonus Verdict

    The 21 Casino gives you a 121% match bonus, which is slightly higher than the standard 100% offers found at most casinos, making it attractive to players looking for extra value. The 40x wagering requirement is a bit high, though. However, the £5 max bet limit and the 30-day expiry period mean that players must manage their bets carefully to meet the requirements in time.

    18+. New players only. Min deposit £10. Bonus funds are 100% up to £500 and separate to cash funds. 40x bonus wagering requirements apply. Deposit and bonus funds count towards wagering requirements. £5 max bet with bonus. Bonus funds must be used within 30 days, spins within 10 days otherwise any unused shall be removed. Affordability checks apply. Terms Apply. BeGambleAware.org -
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21 Casino Bonus Codes Free Spins No Deposit

  • 21 NO DEPOSIT FREE SPINS ON BOOK OF DEAD

    Wagering: 35X
    More details
    Bonus info
    Wagering35X (Winnings)
    Max cashout£100
    Spins21
    Valid only for gamesBook of Dead
    Important Terms
    • You need to access this deal through the exclusive link we provide.
    • Spins are only playable on Book of Dead and must be used within 10 days.
    Bonus Verdict

    The 21 no deposit free spins on Book of Dead offer players a chance to win without depositing. While it’s a great introduction to the casino, the 35x wagering requirement and £100 max withdrawal limit mean that cashing out could be challenging.

    New Players Only. 21 No-Deposit Spins on Book of Dead. Min deposit £10. Bonus funds are 121% up to £100. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contribution. £5 bonus max bet. Winnings from No-Deposit Spins capped at £100. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply. BeGambleAware.org -

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    Wagering: 30X
    Min deposit: £10
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    Important Terms
    • Register and confirm your identity by uploading the necessary documents.
    • Free spins apply to these slot games: Starburst, Aloha! Cluster Pays, and Finn and the Swirly Spin.
    Bonus Verdict

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    Wagering: 25X
    Min deposit: £20
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    18+. New players only. One offer per player. Min deposit £20. Max bonus bet £5. Offer: 100% bonus match on 1st deposit up to £247 + 100 free spins + 1 Scratchcard. Minimum wagering of £20 required to unlock the scratchcard, details & terms sent via inbox. Free spins expire in 72h, winnings capped at £100, credited as cash and are immediately withdrawable. Bonus funds expire in 30 days and are subject to 25x wagering the total bonus & deposit. Only bonus funds count towards wagering contribution. Affordability checks and Terms apply. Please Gamble Responsibly. BeGambleAware.org. -
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    Wagering: 40X
    Min deposit: £20
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    Important Terms
    • Follow our link and sign up at the casino to access this promotion.
    • You must make a £20 deposit to get this offer, which you can find on the casino homepage.
    • The bonus spins can be used only on Starburst by NetEnt within 72 hours of activation.
    Promotion Verdict

    With this Blackjack City Casino first deposit bonus, you get a 100% match of up to £300 and 25 free spins on Starburst. To claim this offer, you must deposit at least £20. Both the bonus and spins have a higher-than-average 40x wagering requirement, making it harder to convert winnings into cash. The bonus spins have a £100 max cashout, which considerably boosts your initial bankroll. You must also use the spins within 72 hours, which can make bonus conversion harder for new players.

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    18+. New players only. One offer per player. Min deposit £20. Max bonus bet £5. Offer: 100% bonus match on 1st deposit up to £247 + 100 free spins + 1 Scratchcard. Minimum wagering of £20 required to unlock the scratchcard, details & terms sent via inbox. Free spins expire in 72h, winnings capped at £100, credited as cash and are immediately withdrawable. Bonus funds expire in 30 days and are subject to 25x wagering the total bonus & deposit. Only bonus funds count towards wagering contribution. Affordability checks and Terms apply. Please Gamble Responsibly. BeGambleAware.org. -
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    18+ | New players only. Min Dep £20 Max Bonus Bet £5 Offer: 100% of 1st deposit up to £300 + 100 Zee Spins on Starburst (first 10 credited on 1st deposit; rest credited at 07:00GMT at 10/day) + 500 Zee Points. Spins expire after 23:59GMT on day they’re credited. Winnings from each 10 spins capped at £50 & credited as bonus. Bonus funds expire after 30 days, are separate to Cash funds, & subject to 35x wagering of bonus + deposit amounts. Affordability checks apply -
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21 Casino Bonus Codes User Reviews

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21 Casino Bonus Codes Bonus Codes Quick Facts

Min deposit£10
Welcome Bonus100% Up To £500
No depositYes
Reload bonusesNo
Payment methods
CurrenciesGBP

Wagering contribution

Game categoryGame contribution
Video Poker, Live casino5 %
Table games, Craps, Blackjack, Slingo, Baccarat, Roulette, Sic Bo, Wheel of Fortune, Poker10 %
Classic Slots, Slots, Scratchcards, Keno, Arcade , 5-Reel Slots100 %
Jackpots, Bingo0 %
Read 21 Casino full review

What are 21 Casino Bonus Codes

21 Casino bonus codes are random numbers and letter combinations that need to be used while depositing to unlock unique rewards. They offer free play on slots like the Book of Dead and also offer the possibility to bet on live casino games. As a new player at this online casino, you can get a big 21 Casino welcome pack that credits you with 121% deposit match bonus worth up to £100. This applies to your first deposit, and bonus funds are kept separate from cash funds. This bonus is subject to 35x wagering requirement and the minimum deposit required is £10. However, if you’re not a fan of wagering requirements, we suggest you try our no wagering bonuses selection. This deal is limited only to players who are willing to make an initial deposit in order to claim it, so there’s some risk involved. You can also get similar offers if you check out our best bonuses complete selection.

How to Claim a 21 Casino Bonus Code

Before you claim your bonus spins or the deposit bonus, you will need to create an account. To get the welcome bonus, follow the process described below:

  1. Navigate to 21 Casino’s homepage and find the “Registration” page to create a free casino account.
  2. Enter your personal information, and choose a username and password.
  3. You will then get 21 Casino after validating your identity by uploading ID documents.

With an account, you can make a real money deposit (min deposit £10) to access the welcome bonus. Meanwhile, you get the free spins without making a deposit automatically. If you’re looking for similar bonuses, you will be able to claim other no deposit free spins from our complete list.

21 Casino No Deposit Bonuses

Separate from the deposit deal, there is a no-deposit sign up bonus from 21 Casino as well. With these promos, you can get 21 free spins on Book of Dead. A 35x bonus wager requirement applies to the winnings generated and the maximum withdrawable amount is limited to £100. It’s an excellent chance for new players to explore the casino and try new games using the funds generated from the spins.

21 Casino Bonus Terms

  • Wagering requirements: Players must use their bonus funds to place bets before they can withdraw any winnings.
  • Bonus expiry: The date when the bonus funds expire.
  • Game restrictions: Certain games cannot be played using bonus funds.
  • Maximum bet limits: The maximum amount players can bet using the bonus funds to contribute towards the wagering.
  • Withdrawal restrictions: A limit on the maximum amount that can be withdrawn from the bonus funds.

How To Calculate The 21 Casino Bonus Wagering

The offers available at 21 Casino are subject to a 35 times the bonus amount wagering. This means that you will be able to withdraw your bonus funds only after you wager that amount by playing casino games. For example, if you claimed the 121% matched deposit of up to £100 and got the full value, to calculate the wagering, you must multiply 35 with the bonus amount, which is £100. In this case, you must wager £3500 to be able to cashout your bonus funds.

21 Casino Slot Providers

21 Casino Payment Methods

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MasterCard
PayPal
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Paysafecard
Maestro
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21 Casino Bonus Codes Verdict

Now that you have read this review of what 21 Casino offers, you are ready to decide if it is the right platform for you. It undeniably has great slots and live casino games, but is it worth your while to claim a bonus? The bonus from 21 Casino is highly generous, offering 21 bonus spins for free with a maximum bonus for depositing players of £100. However, there are some clear drawbacks to the bonus terms. You must wager the spins winnings and deposit match 35 times on the casino games where bonus funds count towards wagering. The extra spins also have limited winnings of £100, which is high considering it’s a risk-free deal. The welcome bonus is only available to newly registered players, but that’s a standard practice and existing players have separate rewards from the casino.

21 Casino Pros & Cons

Pros:

  • 21 spins will be added automatically when you make an account
  • A low minimum deposit of £10 is required to claim the bonuses
  • Many players may only access a significant bonus on the first qualifying deposit.
  • The casino gives members a great range of online casino games to play with bonus funds.
  • You can make a deposit using a wide range of payment methods.

Cons:

  • Bonus money is subject to harsh wagering requirements, and the bonus expires if your account is inactive.
  • Players who want to deposit less than £10 won’t get the main bonus.

21 Casino Bonus Codes Review

9.6/10Alpha RatingExcellent
Read 21 Casino full review
Authors
Adela Mariuta
AuthorAdela MariutaAuthor & Editor at CasinoAlpha

Like a true player-first reviewer, Adela Mariuta translates the gambling industry's complexity into player-friendly roadmaps. While her PR degree taught her how casinos market themselves, her work at CasinoAlpha focuses on what they often hide: ethical gambling practices and self-exclusion tools that truly protect players. "It's not about winning—it's about knowing when to walk away" is what she’d like players to remember more often.

+3 years