£300 Casino Welcome Bonuses

Updated July 2020

Looking to boost your bankroll? A £300 welcome bonus is the perfect way to do so! These sizeable offers mean plenty of extra playtime on your favourite games, which is why we’ve scoured the internet for the best casinos offering £300 welcome bonuses to new players. Whether you’re looking to play slots, blackjack or roulette, you’re sure to find a bonus that suits your preferences and playing style. Want to compare the best options available online today? Take a look at our list of the UK’s top-rated casinos, pick out a favourite and sign up to claim up to £300 in bonus funds today!

How to claim your £300 welcome bonus

  1. Compare

    Use our list of the best UK casinos offering £300 as a welcome bonus to find the right deal for you. While the offers may seem similar at first glance, you’ll need to consider the small print to find the best online casino for you. Factors such as wagering requirements, minimum deposits and maximum win limits might affect your choice. You’ll find a more detailed breakdown of each casino in our expert casino reviews.

  2. Sign up

    Once you’ve chosen an online casino, you’ll need to create an account. Following the link on our list will take you straight to the bonus registration page where you can fill in your personal information and enter any necessary bonus codes. You may have to verify your account by providing identity documents before you can claim your bonus and start playing..

  3. Deposit

    You’ll need to make an initial deposit to claim your online casino £300 welcome bonus, so head to the cashier and pick out your preferred payment method. In most instances, your bonus funds will be credited to your account almost immediately, so you’ll be able to play your favourite games right away!

  4. Play

    Now that your bonus funds are available the fun can begin. Simply head to the games library, choose a title that appeals to you and get playing. If you’re new to online casino games, bonus cash funds can be a great way of experimenting with different games and getting to grips with how each title works.

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  1. 1

    2041 user ratings

    Expert Review

    Deposit £10 Get £60 + 100 Spins

    T&Cs Apply
    New Customer Offer

    UK &; IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £500. Spins available after bonus is redeemed/lost. 10 per day with no wagering. Full T&Cs apply

    pay £10, play with £60.

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Deposit £10 Get £60 + 100 Spins

    T&Cs Apply
    New Customer Offer

    UK &; IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £500. Spins available after bonus is redeemed/lost. 10 per day with no wagering. Full T&Cs apply

    pay £10, play with £60.

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Award Winning Casino

    • Full PayPal Support
    • Popular Live Casino
    • Superb Mobile App
  2. 2

    1908 user ratings

    Expert Review

    200% Up To

    £300

    Welcome Bonus

    T&Cs Apply
    New Customer Offer

    £20 min deposit, excluding deposits by Skrill or NETELLER • 200% up to £300 Bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days.

    Pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    200% Up To

    £300

    Welcome Bonus

    T&Cs Apply
    New Customer Offer

    £20 min deposit, excluding deposits by Skrill or NETELLER • 200% up to £300 Bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days.

    Pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Highly Trusted

    • Full PayPal Support
    • Exclusive Bonuses
    • 7-Figure Jackpots
  3. 3

    463 user ratings

    Expert Review

    100% Up To

    £300

    Welcome Package

    T&Cs Apply
    New Customer Offer

    Min deposit £10. 50x wager “BONUS + DEPOSIT” amount before withdrawal. Bonus must be accepted within 72 hours, valid for 30 days & wagering must be completed within this time. Bonus amount can't be withdrawn. Not all games contribute equally to wagering requirements. Max bet restrictions apply. Deposits with Skrill & Neteller are not valid for this promotion.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    100% Up To

    £300

    Welcome Package

    T&Cs Apply
    New Customer Offer

    Min deposit £10. 50x wager “BONUS + DEPOSIT” amount before withdrawal. Bonus must be accepted within 72 hours, valid for 30 days & wagering must be completed within this time. Bonus amount can't be withdrawn. Not all games contribute equally to wagering requirements. Max bet restrictions apply. Deposits with Skrill & Neteller are not valid for this promotion.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Modern Design & Graphics

    • Big UK Brand Name
    • Great Live Casino Offering
    • Huge Jackpot Slots
  4. 4

    218 user ratings

    Expert Review

    Enjoy Up To

    £200

    + 100 Spins

    T&Cs Apply

    New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit.

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Enjoy Up To

    £200

    + 100 Spins

    T&Cs Apply

    New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit.

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Brand New Casino

    • Perfect for VIP Players
    • Excellent Live Casino
    • Great Game Selection
  5. Casino Planet
    5

    2421 user ratings

    100% up to £300 + 200 Spins

    T&Cs Apply
    New Customer Offer

    £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 20 Spins on preselected games will be credited instantly + then 20 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms - www.begambleaware.org
    Click here for full T&Cs

    Deposit £100 play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    100% up to £300 + 200 Spins

    T&Cs Apply
    New Customer Offer

    £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 20 Spins on preselected games will be credited instantly + then 20 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms - www.begambleaware.org
    Click here for full T&Cs

    Deposit £100 play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Brand New Casino

    • Brand New Casino
    • Modern Design
    • Great for New Games
  6. 6

    1632 user ratings

    Expert Review

    100% Up To

    £100

    +10% Cashback

    T&Cs Apply
    New Customer Offer

    Maximum bonus is 100% up to £100. No max cash out. Wagering is 35x bonus. Maximum bet while playing with a bonus is £5. Cashback is cash with no restrictions. Bonus excluded for players that deposit with Skrill or Neteller. Click here for full T&Cs

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Click here for full terms and conditions

    100% Up To

    £100

    +10% Cashback

    T&Cs Apply
    New Customer Offer

    Maximum bonus is 100% up to £100. No max cash out. Wagering is 35x bonus. Maximum bet while playing with a bonus is £5. Cashback is cash with no restrictions. Bonus excluded for players that deposit with Skrill or Neteller. Click here for full T&Cs

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Top Games Selection

    • Excellent Live Casino
    • Perfect For VIP Players
    • Live Chat Support
  7. 7

    1076 user ratings

    Expert Review

    100% Up To

    £100

    Welcome Bonus

    T&Cs Apply
    New Customer Offer

    100% welcome bonus worth up to £100 is only valid for new players who have registered but have not made any deposit. The value of the bonus has a play through of 35 which must be met to validate any winnings deriving from it. The offer is valid for all payment methods available in Novibet, apart from Neteller and Skrill.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    100% Up To

    £100

    Welcome Bonus

    T&Cs Apply
    New Customer Offer

    100% welcome bonus worth up to £100 is only valid for new players who have registered but have not made any deposit. The value of the bonus has a play through of 35 which must be met to validate any winnings deriving from it. The offer is valid for all payment methods available in Novibet, apart from Neteller and Skrill.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Editor's Choice

    • Perfect For VIP Players
    • Full PayPal Support
    • Over 1,000 Games
  8. 8

    1562 user ratings

    Expert Review

    £20 Welcome Bonus

    T&Cs Apply
    New Customer Offer

    The £20 Welcome Bonus is for open to all new customers to Grosvenor Casinos that make an eligible first deposit.
    The minimum eligible deposit is £20.
    Only one bonus per player, household and IP address is permitted.
    The bonus should be awarded instantly but no later than 72 hours after a successful deposit of £20 or more.
    To withdraw a bonus and associated winnings, players must wager a total of five (5) times the bonus amount, e.g. £20 x = £100
    Attempting to withdraw prior to meeting the wagering requirements will result in the bonus balance being forfeited.
    Customers have 30 days to meet the wagering requirements from the date of first deposit.
    The bonus is only available to players that have registered from one of our permitted and licensed jurisdictions.
    In any dispute, the Grosvenor Casinos management decision will be final.
    Employees of Rank Group or anyone associated with the offer are not permitted to participate.
    Grosvenor Casinos reserves the right to withdraw or amend this offer at any time without prior notice.
    This bonus cannot be used in conjunction with any other offer.
    We may at any point before, during or after the promotion, ask for valid proofs of identity, such as a passport to verify your identity, age and residency. If you are unable to produce such documents you will automatically be excluded from the promotion and will forfeit any prizes that have already been allocated or awarded to you, without compensation.
    Any abuse of this offer may lead to all bonus funds being withdrawn.
    Customers, whose accounts have been closed, suspended or are found to have multiple accounts when a promotion has ended will have their entry forfeited.
    We do not guarantee continuous uninterrupted access to the website. Numerous factors outside the control of the promoter may interfere with the operation of the Website. No responsibility will be accepted for any difficulties, participation or claims that are corrupted or not delivered.
    General Terms and Conditions apply.

    Deposit £20 and get £20 welcome bonus

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    £20 Welcome Bonus

    T&Cs Apply
    New Customer Offer

    The £20 Welcome Bonus is for open to all new customers to Grosvenor Casinos that make an eligible first deposit.
    The minimum eligible deposit is £20.
    Only one bonus per player, household and IP address is permitted.
    The bonus should be awarded instantly but no later than 72 hours after a successful deposit of £20 or more.
    To withdraw a bonus and associated winnings, players must wager a total of five (5) times the bonus amount, e.g. £20 x = £100
    Attempting to withdraw prior to meeting the wagering requirements will result in the bonus balance being forfeited.
    Customers have 30 days to meet the wagering requirements from the date of first deposit.
    The bonus is only available to players that have registered from one of our permitted and licensed jurisdictions.
    In any dispute, the Grosvenor Casinos management decision will be final.
    Employees of Rank Group or anyone associated with the offer are not permitted to participate.
    Grosvenor Casinos reserves the right to withdraw or amend this offer at any time without prior notice.
    This bonus cannot be used in conjunction with any other offer.
    We may at any point before, during or after the promotion, ask for valid proofs of identity, such as a passport to verify your identity, age and residency. If you are unable to produce such documents you will automatically be excluded from the promotion and will forfeit any prizes that have already been allocated or awarded to you, without compensation.
    Any abuse of this offer may lead to all bonus funds being withdrawn.
    Customers, whose accounts have been closed, suspended or are found to have multiple accounts when a promotion has ended will have their entry forfeited.
    We do not guarantee continuous uninterrupted access to the website. Numerous factors outside the control of the promoter may interfere with the operation of the Website. No responsibility will be accepted for any difficulties, participation or claims that are corrupted or not delivered.
    General Terms and Conditions apply.

    Deposit £20 and get £20 welcome bonus

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Highly Trusted

    • Big UK Brand Name
    • New & Classic Games
    • Great Table Game Offering
  9. 9

    1187 user ratings

    Expert Review

    80 Wager Free Spins on 1st Deposit

    T&Cs Apply
    New Customer Offer

    50 Free Spins on first deposit (on Rich Wilde and the Book of Dead). Also, after the first deposit the player can claim an additional 30 Free Spins by visiting the Kicker Section. So the player can receive a total of up to 80 free spins. Please refer to the landing page for all the details.

    Deposit £10 and get 50 Free Spins + 30 Extra Free spins to claim!

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Click here for full terms and conditions

    80 Wager Free Spins on 1st Deposit

    T&Cs Apply
    New Customer Offer

    50 Free Spins on first deposit (on Rich Wilde and the Book of Dead). Also, after the first deposit the player can claim an additional 30 Free Spins by visiting the Kicker Section. So the player can receive a total of up to 80 free spins. Please refer to the landing page for all the details.

    Deposit £10 and get 50 Free Spins + 30 Extra Free spins to claim!

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Great on Mobile

    • Super Fast Payouts
    • No Wagering Required
    • Money Back On Every Bet
  10. 10

    1268 user ratings

    Expert Review

    100% Up To

    £100

    + 25 Spins

    T&Cs Apply
    New Customer Offer

    Min. deposit £15 (no Skrill/Neteller); 40x wagering within 15 days to convert to real money; Max winnings = 10x bonus amount; Real money balance wagered first; Free spins valid for 7 days; Free spins max. winnings = £100. Stake contribution towards wagering requirements varies between eligible games.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    100% Up To

    £100

    + 25 Spins

    T&Cs Apply
    New Customer Offer

    Min. deposit £15 (no Skrill/Neteller); 40x wagering within 15 days to convert to real money; Max winnings = 10x bonus amount; Real money balance wagered first; Free spins valid for 7 days; Free spins max. winnings = £100. Stake contribution towards wagering requirements varies between eligible games.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Modern Design & Graphics

    • Excellent Live Casino
    • Big Range of Offers
    • Slots + Lots More

£300 welcome bonuses explained

As competition grows in the online casino industry grows more competitive, the biggest brands and latest casinos are constantly searching for new and innovative ways to stand out. Casino welcome bonuses are a great way to attract new customers and keep existing players coming back, and matched deposit offers are a tried and tested method that ranks among the most enticing offers. These bonuses see online casino operators offer players a percentage of the cash they deposit, up to a certain amount.

Percentages can vary from 50% to as much as 300%, so there’s plenty of variation in the deals on offer. For example, with a ‘100% deposit match up to £300’, you’d need to deposit £300 to claim the £300 bonus. Alternatively, if a casino offers a ‘200% match up to £300’, you’d only have to deposit £150 to claim £300 in bonus funds. Most casinos will reward the whole £300 bonus in one go, though it’s always worth checking the terms to see whether the bonus is split across the first, second deposit and third deposit.

While the 200% match offer may seem more attractive at first, terms and conditions like wagering requirements can mean that isn’t always the case.

Why claim a £300 welcome bonus?

There’s a number of advantages that come with claiming a £300 casino welcome bonus.

Budget boost

You don’t need us to tell you that an extra £300 equates to lots of bonus playtime on your favourite casino games. Whether you fancy spinning the slots or going against the house on in the live casino, you’ll be able to use your £300 bonus funds to play a whole range of great titles at our recommended UK casinos.

Play new games

Bonus funds are ideal if you fancy trying out a game for the first time without putting any of your real money deposit on the line. You can use your £300 matched deposit bonus to trial run new titles or different variations to find out whether they’re to your taste. Of course, you can always play free casino games to try these out, but using bonus funds gives you the chance to add to your bonus winnings while you experiment.

Chance to win

An online casino £300 welcome bonus probably wouldn’t attract many new players if it didn’t offer a chance to win real money returns. You’ll have to complete the wagering requirements first, which isn’t exactly a walk in the park, but manage that and you’ll have the chance to withdraw your bonus winnings.

Claim your £300 bonus on your mobile

Prefer to play casino games on your mobile? Good news – you can also claim your £300 bonus via mobile at the top casino sites. If you’re looking for the smoothest and most convenient mobile casino experience, we’d recommend checking out casino mobile apps. These can be downloaded for free on iPhone and Android, and have the added benefit of push notifications to ensure a casino bonus never passes you by.

Best new casinos with a £300 welcome bonus

It’s not only the best established casinos that offer £300 bonuses to new players – you can get your hands on this generous offer a number of top new casinos too. This is great news for casino fans, as it means you have more options to choose from when you’re picking out your ideal site. New casinos often seek to attract customers by offering player-friendly bonus terms, such as low wagering requirements, so they’re definitely worth considering.

Bonus terms and conditions

Understanding the bonus terms and conditions is the key to judging the true value of a casino offer- here’s what you need to know.

Wagering requirements

You’ll need to complete the wagering requirements if you want to cash in on any bonus winnings. These state how many times you need to wager your bonus funds before you can withdraw them as real money. So if your £300 bonus has a 30x wagering requirement, you’ll have to wager £6,000 before you can get your hands on any winnings as cash. At some casinos the wagering applies to both the bonus amount and your first deposit, which means you’ll need to wager more before you can cash in.

Wagering contribution

Different games will be weighted differently in terms of how much of your stake counts towards satisfying wagering requirements, with slots usually contributing a higher percentage than table games. For example, if the wagering contribution for blackjack is 10%, only 10p of every £1 bet will go towards completing the wagering.

Warning banner: Some casinos exclude certain games altogether from the wagering contribution.

Game restrictions

You’ll usually be able to use your £300 casino welcome bonus on a wide range of titles, from slots to live dealer games. However, some bonuses can only be used on certain games, so it’s worth checking that the eligible options match your playing preferences.

Maximum win caps

Casinos are usually fairly generous when it comes to £300 bonuses and let players claim winnings well into the thousands – provided they complete the wagering requirements. That being said, the maximum win limit does vary from site to site, so make sure you look out for this in the small print.

Time limits

All online casinos limit how long you have to use your bonus funds and meet the wagering requirements. It’s fairly common for £300 matched deposit bonuses to have a 30 day expiry limit, but these restrictions do differ between casinos.

Payment method restrictions

The best online casinos offer a wide range of payment methods, from PayPal to paysafecard.  However, some payment methods—usually Neteller and Skrill—are often excluded from bonuses and promotions.  Always check that your preferred payment method is accepted as part of a bonus scheme before you sign up to avoid any surprises later on.

Claim your £300 welcome bonus today

Time to claim your very own £300 welcome bonus. Compare the market’s best offer with the help of our top-rated casino list, and use our expert reviews to learn more about the top sites. Once you’ve found your perfect £300 welcome bonus casino, simply sign up, make your first deposit and start playing. Enjoy!

Frequently Asked Questions

  • Do I have to be a new player to claim a £300 bonus?

    Yes. While there’s plenty of opportunities for existing customers to claim reload bonuses and VIP rewards, these will usually offer smaller amounts. £300 matched deposit offers are almost always exclusive to new players making their first deposit.

  • Can I claim more than £300 as a first deposit bonus?

    Sure – some of the best online casinos offer players the chance to claim £500 in bonus funds, and you can even bag up to £1,000 in welcome bonus funds at some sites. Of course, usually the more you want to claim the more you’ll have to deposit, so it’s all about finding the bonus that best matches your budget and playing preferences.

  • Do all £300 bonuses have wagering requirements?

    Yes. While some casinos offer low wagering and no wagering bonuses, these are usually for smaller bonus amounts. This is because any winnings from no wagering bonuses can be withdrawn right away, so a casino would risk making a big loss from a £300 no wagering bonus.

  • Can I claim free spins with my £300 bonus?

    Yes. Many top £300 welcome bonus casinos offer free spins as part of the welcome package, affording you bonus play time on slot games too. Just keep in mind that the free bonus spins are often subject to different terms to the £300 bonus and may be exclusive to a specific title.

  • Is the bonus amount subtracted from the winnings?

    Generally, you’ll be able to keep the £300 casino welcome bonus as well as the winnings if you manage to complete the wagering requirements. We’d always advise double checking the terms and conditions just to be sure, though.

Contributors

Danielle is a staff writer at TopRatedCasinos.co.uk. She contributes to all things casino, from our ‘how to play’ guides to tips on finding the best sites for your favourite casino games. Danielle also has experience writing about sports betting, covering a diverse range of sports including rugby and Formula One.

Daniel Bennett

As staff writer, Daniel offers his expertise in all things gambling, contributing to a number of topics on TopRatedCasinos.co.uk, including our casino reviews and strategy guides. Daniel is also an avid sports fan, with a strong interest in NBA and Premier League betting.

Alan is a staff writer at TopRatedCasinos.co.uk. He covers all areas of the online casino industry, from the newest slot releases to the latest live dealer technology. Alan is also a fan of sports betting, and spends most of his spare time watching and reading about football.