300% Casino Bonus and Up!

Welcome to the ultimate destination for high rollers and bonus hunters! If you’re looking for the biggest and boldest casino bonuses on the market, you’ve come to the right place. We specialize in bringing you the best 300% and up bonuses from the most trusted online casinos.

But we’re not just about the numbers, we know that a great bonus is about more than just the percentage. That’s why we hand-pick only the best offers with fair terms and high-quality casinos.

What is a 300% casino bonus and how is it calculated?

A 300% casino bonus is a promotion offered by online casinos to attract new players or reward loyal ones. It means that for every pound you deposit, the casino will add an additional 3 pounds to your bonus balance, up to a certain limit. For example, if you deposit 50 pounds, you will receive an additional 150 pounds in bonus funds, for a total of 200 pounds to play with.

To calculate the bonus amount, you can use the following formula:

Bonus amount = Deposit amount x Bonus percentage

So, in the example above, the bonus amount would be calculated as follows:

Bonus amount = 50 pounds x 300% = 150 pounds

Keep in mind that most casino bonuses come with certain terms and conditions that you must meet in order to be able to withdraw any winnings. These may include a minimum deposit amount, a wagering requirement, and a maximum cashout limit.

The Top Casinos with 300% Deposit Bonuses

Betfred Sports	Welcome Bonus Deposit £10 and get £30 Bonus + 50 Bonus Spins	Payment PayPal, paysafecard, PayPal, paysafecard + 10 more	Visit Site	Welcome offer Stake £10 Get £40 in Bonuses, given as £30 in Free Bets and 50 Free Spins. New 18+ UK customers only. Register using the promo code WELCOME40, deposit and place first bet of £10+ on Sports (cumulative Evens+) within 7 days of registration. First bet must be on Sports. £30 in Free Bets and £10 in Free Spins (50x20p) credited within 10 hours of bet settlement. The 50 Free Spins can only be used on the following titles at Betfred Games: Eye of Horus, Eye of Horus Megaways, Fishin’ Frenzy, Fishin’ Frenzy Megaways. Free Bet stakes are not included in any returns. Bonuses have a 7-day expiry. Payment restrictions apply. SMS verification and/or Proof of I.D and address may be required. Full T&Cs apply.
BetVictor Casino	Welcome Bonus Deposit £10 and get £30 Bonus + 100 Bonus Spins	Games Providers Microgaming, NetEnt + 19 more	Visit Site	Welcome offer wager £10 and get £30 in bonuses and 100 Free Spins for Fishin ‘Frenzy. 18+ New customers only. Opt in and wager £10 on selected games within 7 days of registration. Get 3 x £10 bonuses for selected games with up to 40x wagering plus 100 Free Spins on Fishin’ Frenzy. Bonuses expire in 30 days. Maximum redeemable from bonuses is £750. Card payments only. T&C’s Apply. begambleaware.org. Please gamble responsibly
Cash Spins	Welcome Bonus 300% Bonus Up To £1,000 + 75 Bonus Spins	Payment paysafecard + 26 more Games Providers Microgaming + 39 more	Visit Site	Welcome offer 300% bonus up to £1000 and 75 zero wager spins on 7 Fortune Frenzy. New players only. This is part of a welcome package worth up to £1750 and 150 spins over 1st 3 deposits. Minimum deposit £20. Cash spins have no wagering requirement. The Welcome Package is subject to 33x wagering requirement at each stage of the 3 bonuses. Full terms apply.
Eclipse Casino	Welcome Bonus 300% Bonus Up To £3,000	Payment paysafecard + 7 more	Visit Site	Welcome offer 300% Slots Match up to £3000 and 100% Cashback on first 3 deposits. Use code ECLIPSE300. Valid on the first three deposits. Minimum deposit £25+ on slots and specialty games only. PT X 40, no maximum cashout. Cashback is given in the form of a Free Chip, PT x50, maximum cash out x5, to be claimed in Live Chat. Terms apply.
Golden Lion Casino	Welcome Bonus 300% Bonus Up To £3,000	Payment paysafecard + 9 more	Visit Site	300% Welcome Bonus up to £3000 and 10% Cashback on 1st deposit using code ROAR300. Code is valid once for new players only, on deposit £25. PT x40, no maximum cash-out, valid on slots and specialty games only. Cashback is given in a form of a Free Chip, PT x50, maximum cash out x5, to be claimed in Live Chat. Terms apply
Harry’s	Welcome Bonus 300% Bonus Up To £2,500	Payment Klarna + 13 more	Visit Site	Welcome package offering 650% up to £5000 over 3 deposits, starting with 300% Bonus up to £2500 on 1st deposit. New players only. Opt in required. Minimum deposit £25. Welcome Casino Package Bonuses are subject to WR 50x within 10 days of bonus activation. Welcome Casino Package is only for Slots for the providers: Egt, Amatic, Netent. Full terms apply
Lady Linda Casino	Welcome Bonus 300% Bonus Up To £1,000	Payment Klarna + 13 more	Visit Site	Welcome offer 300% up to £1000. New players, 1st deposit only. Opt in required. Minimum deposit £25. Welcome Casino Bonus can be used on slots and only on the following Providers: Egt, Amatic, Netent. Welcome Casino Bonus is subject to WR 45x. Full terms apply.
Luck of Spins	Welcome Bonus 300% Bonus Up To £1,200	Payment Klarna + 7 more Games Providers NetEnt, Microgaming + 54 more	Visit Site	Welcome offer 300% Bonus up to £1200. New registrations only, 1st deposit only. Minimum deposit £25. Maximum Bonus £1200. Welcome Casino Bonus can be used on slots and only on the following Provider: Egt, Netent, Novomatic, Play n go, Pragmatic, Amatic. Bonus amount is subject to a wagering requirement of 45x within 45 days. General Terms and Conditions apply.
Nevada 777	Welcome Bonus 300% Bonus Up To £10,000 + 50 Bonus Spins		Visit Site	Welcome offer 300% Bonus up to £10000 and 50 Free Spins on 1st deposit. PLUS Claim 300% and 50 Free Spins again on the 2nd deposit. Coupon code WELCOME1 required. Minimum deposit £20. Free spins valid on Cash Bandits 3. WR 20x deposit + bonus amount. Winnings from Free Spins will be subject to wagering of 45x. Full terms apply.
Platinum Club VIP	Welcome Bonus 300% Bonus Up To £3,000	Games Providers NetEnt + 32 more	Visit Site	Welcome offer 300% Bonus up to £3000. New registrations, 1st deposit only. Minimum deposit £25. Opt in required. Welcome Bonus can be used on slots and only on the following Providers: Egt,, Amatic, Netent. Bonus is subject to wagering requirement of 40x. Full terms apply.
Slots And Casino	Welcome Bonus 300% Bonus Up To £1,500 + 100 Bonus Spins	Payment paysafecard + 8 more	Visit Site	Welcome offer 300% deposit match up to £1500 and 100 free spins. New players only. Minimum deposit £25. WR 30x deposit + bonus. Free spins credited as 10 per day over 10 days. WR 30x applies to FS winnings. FS can be used on specified games only including Mystic Wolf, Five Times Wins and Jumping Jaguar. Free spins are only availabe to players who have not already won and requested a withdrawal. Full terms apply. Players who wish to deposit using Bitcoin can claim a 500% welcome bonus.
Slots n Roll	Welcome Bonus 300% Bonus Up To £5,000 + 50 Bonus Spins		Visit Site	Welcome offer 600% Bonus and 100 Free Spins over your 1st 2 deposits, starting with 300% Bonus and 50 Free Spins on Cash Bandits 3 on 1st deposit. Coupon code WELCOME1 required. Min deposit £20. Maximum Bonus £5000. Maximum winnings from Free Spins £50. WR Bonus 20x. WR Free Spins winnings 45x. Full terms apply.
Ultima Casino	Welcome Bonus 300% Bonus Up To £3,000	Games Providers NetEnt + 40 more	Visit Site	NEW Improved Welcome Bonus 300% up to £3000. New players, 1st deposit only. Opt in required. Minimum deposit £25. Maximum bonus £3000. Welcome Casino Bonus can be used on slots and only on the following Provider: Egt, Netent, Amatic. Bonus amount is subject to a wagering requirement of 20x deposit + bonus amount within 45 days. Minimum bet amount to count toward the wagering requirement is £0.50 and maximum is £5.00. General Terms and Conditions apply.

How to Claim Your 300% Casino Bonus

To take advantage of these incredible offers, simply follow these straightforward steps:

Select your preferred casino: Browse our list of the best casinos offering a 300% deposit bonus and choose the one that appeals to you the most.
Register an account: Complete the registration process by providing the required personal information and verifying your account.
Make a deposit: Navigate to the cashier section of the casino and make your initial deposit. Be sure to check the minimum deposit required to claim the bonus.
Claim your bonus: Once your deposit has been processed, your 300% bonus will be automatically credited to your account.

Wagering Requirements Explained

When it comes to casino bonuses, understanding wagering requirements is essential. These requirements dictate the number of times you must wager the bonus amount before you can withdraw any winnings. For instance, if you receive a £100 bonus with a 30x wagering requirement, you will need to wager a total of £3,000 before you can cash out any winnings.

Tips for Meeting Wagering Requirements

Here are some valuable tips to help you successfully meet the wagering requirements of your 300% casino bonus:

Choose games with a high RTP: Opt for games with a high return to player (RTP) percentage to maximise your chances of winning.
Set a budget: Establish a budget and stick to it to avoid overspending during your gaming sessions.
Play low-volatility games: These games offer smaller but more frequent payouts, which can help you meet the wagering requirements more easily.

Essential Bonus Terms to Be Aware Of

Before claiming any casino bonus, it’s crucial to familiarise yourself with the bonus terms and conditions. Here are some essential aspects to consider:

Expiry date: Bonuses often come with an expiry date, so be sure to use your bonus funds before they expire.
Game restrictions: Some casinos may restrict the use of bonus funds on specific games or game categories.
Maximum bet limits: Casinos may impose limits on the maximum bet amount when using bonus funds.
Withdrawal restrictions: Some casinos may place a cap on the amount you can withdraw from your bonus winnings.

The Benefits of 300% Casino Bonuses

300% casino bonuses offer numerous advantages to both new and experienced players. Here are some of the most notable benefits:

Enhanced Bankroll

A 300% deposit bonus significantly boosts your initial deposit, providing you with a larger bankroll to explore the casino’s offerings. This increased bankroll allows you to play for longer periods, increasing your chances of landing substantial wins.

Opportunity to Try New Games

With a larger bankroll, you can venture into unfamiliar games and discover new favourites without risking too much of your own money. This is particularly beneficial if you are keen to explore the latest slot releases or try your hand at different table games.

Improved Winning Potential

The larger your bankroll, the more opportunities you have to win. With a 300% casino bonus, you can place more bets and potentially hit that life-changing jackpot.

Increased Loyalty Points

Many online casinos offer loyalty programmes that reward players with points for every bet placed. As you accumulate these points, you can exchange them for various rewards, such as bonus funds, free spins, or even cashback. By using a 300% deposit bonus, you can quickly earn more loyalty points and enjoy the benefits of the casino’s rewards programme.

In Conclusion: Make the Most of Your 300% Casino Bonus

A 300% casino bonus is a highly attractive offer that can significantly enhance your online gambling experience. By selecting a reputable casino, understanding the wagering requirements, and being mindful of the bonus terms, you can take full advantage of this generous promotion. Armed with the knowledge from our comprehensive guide, you are now ready to dive into the thrilling world of online casinos and claim your 300% deposit bonus. So, go ahead, make your first deposit, and enjoy an unparalleled gaming experience!