Best First Deposit Casino Bonuses UK 2025 – Up to 500% Match + Free Spins

Looking to stretch your first casino deposit as far as it can go? Cool! At BritishGambler.co.uk, we’ve rounded up the top UK first deposit bonuses for 2025 — with 100% deposit match first customer deals going up to a whopping 500% match offers. That means more spins on big-name slots like Starburst, Book of Dead, and Big Bass Bonanza — and more chances to win. Do you want a simple 100% match on your first deposit from £10 or a supercharged 400%+ offer with low wagering, we’ve listed the best UK casino first deposit bonus sites to get you started.

Top 100% UK First Deposit Casino Bonuses 2025

A first deposit casino bonus is a popular starting point for promos. Players will be rewarded when they make their first deposit (usually £10) at an online casino. The aim is to give players extra money to play with.

A first-time deposit bonus is a casino’s way of saying “welcome.” When you register at an online casino and make your first deposit (usually £10 or £20), the casino will match that deposit with bonus funds. For example, with a 100% match, depositing £20 means you’ll have £40 to play with.

View some of our favourite bonuses that you can get if you make your first real money deposit at these UK casinos:

• Barz Casino: 100% deposit bonus up to £300 and 50 free spins on Starburst. Register, make a qualifying deposit, and claim the bonus. Be sure to check wagering requirements.
• 21 Lucky Bet: 100% deposit bonus up to £200 and 20 free spins on Book of Dead. Sign up, make a qualifying deposit, and enjoy the bonus. Pay attention to the wagering conditions.
• Dream Vegas: 100% deposit bonus up to £300 and 150 free spins. Register, make a qualifying deposit, and claim your bonus. Follow the wagering requirements to convert bonus funds.

In 2025, some of the best UK online casinos offer fantastic first-time deposit bonuses. For instance, Buzz Casino gives new players 200 free spins when they deposit £10, while Barz Casino matches your first deposit up to £300 and throws in 50 bonus spins. These bonuses provide a great incentive for beginners looking to get the most out of their initial deposit.

Best 100% Deposit Bonuses in the UK

A 100% deposit match is one of the most common first-time bonuses, doubling your initial deposit. Casinos like Dream Vegas offer a 100% bonus up to £300, which can provide a great start for anyone new to the site. Meanwhile, Spin Rio also offers up to £200 in bonus funds, alongside 100 free spins. These bonuses give you extra funds to explore a wide range of slots and table games.

• Lucky VIP Casino offers a 100% bonus up to £100, plus an additional £7 for live casino play using the promo code LVGMBLR. New UK users can claim this bonus by depositing a minimum of £20. There is a 40x wagering requirement on both the deposit and bonus, and a 20x requirement on live bonus winnings.
• Dream Vegas provides a 100% deposit bonus up to £300 along with 150 free spins. No promo code is required. The minimum deposit is £20, and there is a 35x wagering requirement on the total bonus and deposit amount. Free spins must be used within 72 hours.
• Rialto Casino offers a 100% match bonus up to £300 plus 200 free spins with the promo code RIALTOGMBLR. To qualify, players must deposit at least £20. The bonus and deposit are subject to a 40x wagering requirement, and the free spins come with a 25x wagering requirement.

You can receive up to £1550 across multiple casinos. Here’s the breakdown:

• Winomania: 100% deposit bonus up to £100.
• All British Casino: 100% deposit bonus up to £100.
• Barz Casino: 100% deposit bonus up to £300.
• 21 Lucky Bet: 100% deposit bonus up to £200.
• Dream Vegas: 100% deposit bonus up to £300.
• Spin Rio: 100% deposit bonus up to £200.
• The Grand Ivy Casino: 100% deposit bonus up to £300.
• Vbet: 100% deposit bonus up to £50.

200% and 300% First Deposit Bonuses

If you want even more value from your first deposit, some UK casinos go beyond the typical 100%. For instance, William Hill offers an incredible 400% match bonus using the code BASS40. That means a £10 deposit will give you a total of £50 to play with! Similarly, Unibet offers a 200% match bonus up to £200, which is perfect for those looking to boost their initial stake.

Deposit and Claim Up to £100

• Lucky VIP Casino: 100% deposit bonus up to £100.
• Casumo Casino: 100% deposit bonus up to £25.
• Grosvenor Casinos: Deposit £20 and play with £50. (Wagering: 30x on £30 bonus; code: RIALTOGMBLR).
• Rialto Casino: 100% deposit match bonus up to £100 on the first deposit (Wagering: 40x deposit + bonus).
• Bet365 Casino: Stake £10 and get 50 bonus spins (Code: 365GMBLR).

Deposit and Claim Up to £200

• Casimba Casino: 100% deposit bonus up to £200 (Wagering: 35x bonus + cash).
• Barz Casino: 100% deposit bonus up to £300 (Wagering: 40x bonus + cash).
• VegasLand Casino: 100% first deposit bonus up to £200 (Wagering: 35x deposit + bonus).

200% Deposit Match Bonus Deals

Unibet Casino offers a 200% deposit bonus up to £200. No promo code is needed. Players must deposit at least £10, with a 50x wagering requirement on the bonus amount. Unibet Casino is great for jackpot games and the lobby is bursting with titles, such as Temple Tumble and Money Train. Both of these are Dream Drop jackpots, so expect big cash prizes.

PokerStars Casino offers a 200% bonus up to £300 with the promo code BONUS300. The minimum deposit is £10, and players must earn 5 redemption points per £1 to clear the bonus within 7 days.

Deposit and Claim Up to £300 and 300% Match

• Dream Vegas Casino: 100% deposit bonus up to £300 (Wagering: 35x bonus + cash).
• Playzee Casino: 100% deposit bonus up to £300.

Ladbrokes Casino features a 300% bonus on the first deposit. No promo code is required.

By depositing and wagering £10, players receive a £30 casino bonus, subject to a 40x wagering requirement before any winnings can be withdrawn.

Claim 400% Deposit Match

Unibet Casino offers a 400% deposit bonus up to £40. No promo code is needed. Players must deposit at least £10, with a 50x wagering requirement on the bonus.

Get up to 500% Welcome Offer

Coral Casino provides a 500% deposit bonus. No promo code is required. Players can deposit £10 to receive a £50 casino bonus, which comes with a 40x wagering requirement.

Exclusive New User Deposit Bonus Codes

Winomania has been building a large online community since 2018. It also has a very strong Live Casino collection. With their Welcome Offer, you can collect a 100% Deposit Bonus up to £100 and 100 free spins for games such as Book of the Dead. The website is very user-friendly so jump straight in! 

All British Casino is unashamedly patriotic. This sportsbook is also jam-packed with slots, Slingo and dealer-led tables. You can fly the flag with their 100% Deposit Bonus up to £100 AND 10% Cashback on all your playing EVERY month. Oh, and All British Casino has a good track record for processing withdrawals quickly.

Barz Casino – the best 100% deposit bonus UK casino site is far from dated. The 2,000+ slots or 50+ Live Casino tables on the site supports this. Barz will match your initial deposit, up to £300 to welcome you as well as 50 free spins. Oh, and there are mega cash giveaways available along the way.

21 Lucky Bet has over 2,500 games on site and a comprehensive sportsbook. With its welcome offer, they will double your first deposit up to £200 AND give you 20 Free Spins on Book of Dead. We particularly liked the simplicity of claiming the offer.

Dream Vegas has big ambitions and a 100% deposit match bonus too. You can collect a 100% initial Deposit Bonus of up to £300 when you start your Dream Vegas Journey. 

Grosvenor 150% Deposit Bonus. One of the best casinos out there, Grosvenor offers a smooth deal. As a new player, you can enjoy a £30 bonus when you deposit a minimum of £20, a 150% Deposit Bonus. A 30x wagering requirement is attached before it can be withdrawn as cash.

The maximum permissible winnings from this bonus are capped at £2,000. The maximum deposit to receive the full bonus is £200. The 150% Deposit Bonus can be used on many games.

Unibet 400% Deposit Bonus. Unibet has an outstanding range of slots, table games, and sportsbook. Their Welcome offer is a 400% Deposit Bonus, with 100 Free Spins on the classic slot Starburst thrown in for good measure.

A £50 casino bonus will be credited to opted-in customers when they deposit at least £10. Only Debit card deposits are valid for this offer, so don’t try and use e-wallets or pre-paid cards.

Spin and Win Casino: This gambling site offers UK casino players a 100% deposit match up to £500 in bonus. You must make a qualifying deposit of just £10, and the offer is only valid for seven days. The 40x playthrough requirement applies to your deposit plus bonus. See alternative casinos with a minimum 5-pound deposit here.

PokerStars Casino 200% Deposit. Although new on the scene, PokerStars Casino is already winning over plenty of punters with its generous promotions. Their Welcome Offer is triple-loaded with a 200% Deposit Bonus and up to 100 Extra Free Spins.

The minimum deposit is £10, and the maximum convertible winnings from the Deposit Bonus is £100. You have 30 days to claim the Bonuses, and they are subject to a 40x wagering requirement. Find our more about sister platforms to the best sites here.

Ladbrokes Casino 300% Bonus on First Deposit. Their Casino Welcome Offer is a 300% Deposit Bonus. Deposit and wager £10, and they will give you a £30 Casino Bonus.

The slots choice for the bonus is vast. Expect to use the bonus for games such as Eye of Horus, Slingo Rainbow Riches, and Big Bass Bonanza. This offer is valid for 30 days and is subject to a 40x wagering requirement. Check out the Ladbrokes app to see what all the fuss is about.

Get 150%, 200%, 300%, 400% and up to 500% in Bonuses

Deposit Terms Explained

Wagering terms require you to play through the bonus amount several times before you can withdraw any winnings. For example, a 35x wagering requirement on a £100 bonus means you must wager £3,500 before withdrawing.

Deposit Only: You must clear the amount of your deposit only. For example, you deposit £20 and receive £20 or up to £200 max at Magical Vegas casino in bonus funds. You must wager just £20 before releasing the funds and winnings 35 times.

A deposit promo code is required; insert MVCGMBLR. View more promo codes here.

Deposit + Bonus: You must clear the value of your deposit PLUS the same in bonus funds. Imagine you deposit £50. You must clear £50 + £50, or £100, multiplied by the wagering requirement.

For example, the UK’s Regal Wins casino has a 100% deposit match bonus up to £500 with a 50x deposit + bonus wagering requirement. Use deposit code REGALBONUS.

Contribution Rates: 100% casino match bonuses normally come with strict contribution rates.

Certain games contribute different amounts towards the bonus. For example, some top-payout slots may contribute 100%, while table games such as roulette may count just 10-20%. View low-wagering bonuses here.

Expiry Dates: You must claim your welcome bonus within a few weeks of signing up at the casino. Once you opt-in, you may only have 7-10 days to clear your bonus commitment.