Top 10 Best Online Casino Bonuses - July 2025

What is a Casino Bonus and how do they work?

The majority of casino sites offer casino bonuses for new and existing customers. Offers for new customers are typically more appealing in order to attract as many new players as possible.

These players are required to make a minimum first deposit in order to claim a bonus and/or free spins to play with. Each offer will have different terms and conditions to follow in order to receive the bonus and they depend on the casino. We strongly recommend reading them before signing up to ensure you qualify for the offer.

Types of Online Casino Bonus: Full Guide

There are various different types of casino bonus and it is important to understand them before signing up. Here is what you can expect to find when you are looking for a new casino site:

Minimum Deposit

Minimum deposits are straightforward and are a common requirement in a welcome offer. You simply have to deposit the minimum amount of funds stated when you sign up to receive the bonus they are promoting i.e. bonus funds and/or free spins.

These offers include set bonuses such as ‘Deposit £10 and Get £30’ or ‘Deposit £10 Get £20 plus 100 Free Spins’ etc. These have less value than some offers but we like them as the terms are more straightforward to follow such as meeting the wagering requirements.

No Deposit Bonus

Online casinos occasionally offer no-deposit bonuses where you are not required to make any deposit to claim the bonus. We like these offers as you simply have to sign up to receive your welcome bonus.

Free Spins

Free spins are rather self-explanatory with casino sites offering you a certain amount of free spins to play with. They are set at a specific value, usually around 5-20p. Typically, there will be specified games for you to use the free spins on or even one featured game such as Big Bass Bonanza.

Free spins offers can be given on their own or combined with a deposit match bonus. No-deposit offers will usually offer you a set number of free spins after you have signed up. This is very inviting as you do not have to deposit or stake certain amounts to get involved.

Deposit-Match

These are the offers that catch the eye with larger bonuses up for grabs such as ‘100% Deposit Match up to £200’. The beauty of these percentage offers is that you are rewarded on how much you deposit. For example, if you want to deposit £10, you will receive £10 in bonus funds but if you are willing to deposit £200, you will receive the full £200. Your deposit and bonus would give you £400 to play with!

Cashback Bonus

Cashback bonuses refund your first bet if it loses to soften the risk. The refund is typically offered as a percentage of your first bet or net losses over a certain period of time and offered as bonus funds. For example, a casino site may offer 10% cashback on losses over 7 days from registering. So, if you lost £50 in your first week, you would receive £5 cashback.

The percentages of cashback bonuses vary with the best offering 100% but standard cashback bonuses offer around 25-30%. These offers are very popular in US and Canadian online casinos, you may see them referred to as ‘Safety Net Bets’.

Bet-and-Get

A Bet-and-Get bonus is a reward in exchange for placing an initial bet or series of bets. These offers are very common and designed to encourage you to become an active paying customer. For example, ‘Bet £20 and Get £50 plus 100 Free Spins’ would mean you would have to spend £20 to receive the bonus.

How to Claim Your Casino Welcome Bonus

Here is a typical criteria of what you need to claim a casino welcome bonus:

1. Age Verification - You must be at least 18 years of age to legally gamble in the UK.
2. Residency - You must live in the UK with a valid residency.
3. New player - You cannot have previously opened an account (regardless of whether you are using a different email account) with the casino site and occasionally sites under the same umbrella such as Sky Bet, Sky Vegas, Sky Casino etc.
4. Account Registration - Complete the registration process with your personal information
5. Identity Verification - You may need to provide proof of identity with documents such as your passport, driver’s license and proof of address
6. Promo Code - If the welcome offer has a code, you will need to enter this during the registration process.
7. Minimum Deposit - You must deposit at least the minimum stated amount for your first deposit.
8. Payment Method - You must make your first deposit using eligible payment methods for the bonus. Not all methods that are accepted by the site are compatible with the casino’s welcome bonus.
9. Minimum Stake - Certain welcome bonuses are activated after your initial bet which may also be on selected games.
10. Wagering Requirements - You may need to wager the bonus a certain amount of times before withdrawing the winnings you have made from your bonus.
11. Expiry Time - You will need to spend your bonus and meet any wagering requirements within the specified expiry time.

How we choose the best casino bonuses

A casino welcome offer is not just about how lucrative the bonus is. Trudging through all the terms and conditions is very important to sniff out all the stipulations and ensure you qualify and know how the bonus is released. Here are all the crucial factors and terms we consider to bring you the top 10 casino offers:

Bonus Amounts

Bonuses are a fantastic risk-free way to test out different games. Bonuses come in the form of free bets, spins and bonus funds and are your reward for signing up, depositing and betting. Larger casino bonuses are obviously preferred and we evaluate all of them and regularly monitor any changes.

Wagering Requirements

Wagering requirements are the amount of times you have to wager the bonus amount in order to withdraw it.

For example, if the bonus amount is £100 and there is a 40x wagering requirement. 100 x 40 = 4000 so you would have to place a total of £4000 in bets before you can withdraw any winnings.

The average wagering requirement in an offer is around 35x and some are as high as 60x. Then, there are offers with no wagering requirements at all which go down very well.

If you are snapping up a welcome offer to make money, these requirements are not very appealing but if you are playing for fun which we recommend, wagering should not put you off.

Minimum Deposit

A minimum deposit is the minimum amount of funds you need to deposit to be eligible to claim the welcome bonus. These amounts vary between sites but they are typically £10 or £20.

There are offers as low as £5 but sometimes the minimum stake is £10 so you may as well deposit £10 anyway or on the other hand there are simply less bonus amounts on offer because of the lower deposit. We weigh all of this up when analysing the best offers.

Bonus Expiry Time

The expiry time or validity period of an online casino bonus is the time frame you have to use the bonus and meet any conditions. Times vary especially if there are wagering requirements. If a player has to wager £1000 for example, the casino site should give you 30 days at least. When there are not any wagering requirements, 7 days is common.

The longer the expiry time the better and it is crucial to know this before signing up as losing a bonus because it has expired is a common cause of frustration among new players.

Wagering Contributions

Wagering contributions are how much each type of game counts towards meeting the wagering requirements in a casino bonus. These are often overlooked but very important to consider.

Most of the time, slots contribute 100% towards the wagering requirements. However, you may be required to wager some of the bonus on specific titles or certain types of games such as Jackpots.

Once you figure out where you can wager the bonus, you need to know how much different games contribute. For example, you may be required to wager 20% of the bonus on Megaways slots and the rest on normal slots.

Certain games may also be restricted. For players who prefer to play table games such as blackjack or roulette and wish to meet their wagering requirements and find out they can’t, this can make or break an offer.

With all of this in mind, we bring you our best casino welcome offers:

Top 10 UK Online Casino Bonuses

1. Sky Vegas - 50 Seriously Free Spins + Spend £10 Get 200 Spins

The beauty in Sky Vegas’ welcome offer is its simplicity. 50 free spins means there is no minimum deposit required. However, the second part of the offer means that if you spend £10, you will get another 200 free spins to play with. You have 7 days to use the free spins which is not long but that is because there are no wagering requirements which is one of our favourite parts of the offer.

Free spins are worth 10p each and can be spent on the following games:The Goonies - Jackpot King, Eye Of Horus, Fishin' Frenzy, Lion Festival - Jackpot King, Super Spinner - Jackpot King, Slots O' Gold - Jackpot King, King Kong Cash - Jackpot King, Fishin' Frenzy - Jackpot King, Deal Or No Deal Megaways, Beavis and Butthead and Luck Of The Irish: Fortune Spins.

T&Cs: New customers only. 7 day Free Spin expiry. All Free Spins will be loaded on the first eligible game selected. Deposit and stake £10 requirement must be met within 30 days of registration. Game & eligibility restrictions apply. Further T&Cs apply. 18+. GambleAware.org

2. Paddy Power - Deposit £10 Play with £40 + 100 Free Spins

Paddy Power has an excellent casino welcome offer which we have to come to expect from the Irish operator. They require a standard but low minimum deposit of £10 which is added on to the bonus. So, you have £10 plus £30 to play with. The only downside is that the bonus has to be wagered 40x within 7 days. Once the bonus has been used (or lost) you will then be awarded with 100 free spins worth 5p each to spend on Age of the Gods: Ruler of the Dead.

T&Cs: New UK and IRL customers only. Deposits through debit cards only. 40x wagering requirement on bonus, within 7 days, on eligible slot games. Winnings from bonus capped at £500. Spins available upon completion of bonus. Full T&Cs apply.

3. Grosvenor - Get 100 FREE Spins Plus a £30 Bonus When You Deposit £20

Grosvenor requires a high minimum deposit but the bonus more than makes up for it. They are offering a £30 bonus on top of 100 free spins. The £30 bonus has to be wagered 30x so including your deposit (£20 + £30) 50 x 30 = 1500 meaning you have to wager £1500 before withdrawing the winnings and you will have to do so within 30 days.

Free spins are worth 10p each and can be spent on the following games: Eye of Horus JP King, Fishin Frenzy The Big Catch - JP King, Bison Rising Megaways, The Goonies Jackpot King, Slot's o Gold Megaways Jackpot King, Mega Bars Big Hit Jackpot King, Gold Strike Bonanza Jackpot King, Wolf Legend Megaways.

T&Cs: 18+. New Customers by invite Only. Min Deposit £20 (exc PayPal). Max Bonus £30 (30x wagering & max wins £2000) & 100 Free Spins @‌10p playable on selected games (1x wagering on wins, max wins £500). T&Cs Apply. GambleAware.org

4. BetVictor - Spend £10 Get £30 Casino Bonus + 30 Free Spins

£30 is an excellent bonus and you only have to deposit £10. This bonus will be awarded as: £10 in Casino Bonus Funds (excluding Slots and Live Casino), £10 Live Casino Bonus Funds (excluding Game Shows) and a £10 Game Shows Bonus Fund. These all need to be wagered 40x which is on the high side but there are no wagering requirements on the free spins. You can only spend them on Fishin’ Frenzy however, this is a very popular and fun game. You are given 30 days to use the bonus and free spins which is good.

T&Cs: 18+ New customers only. Opt in, deposit, and wager a min of £10 on selected games within 7 days of registration. Get a 3x £10 Casino Bonus Funds for selected games (40x wagering) and 30 Free Spins on Fishin' Frenzy. Max withdrawal £750. T&Cs apply. GambleAware.org | Please gamble responsibly

5. Betfred - Stake £10 Get Up to 200 Free Spins

We love the simplicity of the Betfred Casino Welcome Offer. When you stake £10, you qualify for 50, 100 or 200 free spins each worth £10. You have the freedom to choose which game to spend your free spins on whether it be 50 free spins on Age of the Gods, 100 free spins on Better Wilds or 200 free spins on Age of the Gods: God of Storm 2. You just have to remember that these spins will expire after 7 days and you do not have a wagering requirement to worry about. If you have already signed up to Betfred to use their sportsbook, you can still claim the casino offer which you rarely see from operators. As long as you sign up to both within 30 days of each other, you can claim two welcome offers!

T&Cs: New customers only. 18+ Opt In required. £/€10 min stake on Casino slots within 30 days of registration. Max bonus 200 Free Spins on selected games credited within 48 hours. Free Spins expire after 7 days. iOS app restrictions may apply. Email/SMS validation may apply. Not available in NI. Full T&Cs apply.

6. Sky Casino - 100 Free Spins when you deposit & spend £10

We appreciate how Sky never over complicates their welcome offer and this is no different. You simply receive 100 free spins when you deposit and spend £10. There are no wagering requirements and you have 30 days to use them until they expire. If you are a fan of the Age of Gods series, even better as you can play on any of their eight branded products.

Free spins are worth 10p each and can be spent on the following games: Age of the Gods Helios, Age of the Gods King of Olympus Megaways, Age of the Gods God of Storms 3, Age of the Gods Furious 4, Age of the Gods God of Storms 2, Age of the Gods Ruler of the Dead, Age of the Gods Wonder Warriors and Age of the Gods Wheels of Olympus.

T&Cs: New customers only. Opt in required. 30 day free spin expiry. Free Spins can only be used on the eligible games. Min. £10 deposit & staking requirement applies. Game and eligibility restrictions apply. Further T&Cs apply. 18+. GambleAware.org

7. Coral - Get 100 Free Spins When you play £10 on any Slots

The Coral Casino welcome bonus is very similar to the Sky Casino one and it is very straightforward. Simply deposit and spend £10 on any slot to receive 100 free spins. You only have 7 days to use them but there are no wagering requirements to worry about. There is a smaller selection of games to use the free spins on compared to Sky but there is more variety.

Free spins are worth 10p each and can be spent on the following games: Clucky Golden Eggs, Nuggets of Gold, Pig Banker Diamond Dash Golden Hammer, Rainbow Lobster Pots, Lock O' The Irish 2, Big Banker.

T&Cs: 18+. New Casino players only. Deposit (certain types excluded) and Bet £10+ on Slots games to get 100 Free Spins (selected games, value £0.10 each, 48 hrs to accept, valid for 7 days). Restrictions and T&Cs apply.

8. Unibet - Deposit £10 Get £40 Bonus

The Unibet Casino welcome offer serves up one of the largest casino bonuses in the UK. You just have to deposit £10 and £40 will be credited to your account. The bonus has to be wagered 50x and can be used on various slot games besides the ones mentioned below. Considering the wagering requirement, Unibet gives you 30 days until the bonus expires.

Bonus cannot be wagered on virtual sports markets or any of following games:10 001 Nights • 1429 Unchartered Seas • 6 Wild Sharks • Age of Conquest • Agent Valkyrie • Arcade Bomb • Aztec Spins • Bank or Prank • Beers on Reels • Blazing Bull • Blood Moon Express • Blood Suckers 1/2 • Book of Oz • Bronco Spirit • Caribbean Anne • Cash Elevator • Cash Ultimate • Castle Builder 1/2 • Cleopatra Plus • Crystal Cavern • Dark Vortex • Dead or Alive • Diamond Blitz • Dynamite Riches • Eye of the Kraken • Fantastic Fireworks • Flower Fortunes Megaways • Flowers/Christmas Flowers • Frequent Flyer • Goblins and Gemstones • Golden Tsar • Hero Clash • Hexbreak3r • Icy Wilds • Jack Hammer 1/2 • Jackpot 6,000 • Jungle Gorilla • Keno • Lil Devil • Lucky Fridays • Monkey God • Monopoly Megaways • Multiplayer Mayhem • Pearls of India • Piggy Riches • Pride and Prey • Rage to Riches • Rainbow Riches Race Day • Red Hot Reels • Rome: The Golden Age • Scarab • Sea Hunter • Secret of the Stones • The Wisecracker Lightning • Three Musketeers • Well of Wishes • Wild Hot Chilly Reels

T&Cs: 18+. GambleAware.org. New Customers Only. Minimum deposit £10. 50x wagering requirement apply. Bonus will expire 30 days after opt-in. Further T&Cs apply. #AD

9. Magical Vegas - Get Up to £300 bonus + 30 Free Spins

This is a deposit-match offer with a huge potential bonus. If you are willing to deposit £300, you will receive a £300 bonus which is higher than any offer on this list. The minimum deposit is your standard £10 so you have the freedom to put down as much as you like between £10 - £300. In addition, you will also receive 30 free spins which has a 30x wagering requirement. So, if you deposit (£10) plus your bonus (£10) you will need to wager £600 (£20x30) before any winnings can be withdrawn from your bonus balance.

Free spins are worth 20p each and can be spent on the following games: Fishin Frenzy the Big Catch, Big Piggy Bank, Lucky Lady's Charm Deluxe, Bigger Bass Bonanza, Cash Strike Hotstepper, Eye of Horus Megaways, King Kong Cash Even Bigger Bananas Jackpot King, Fishin Frenzy The Big Catch Megaways, Gold Cash Freespins, Big Bass Hold & Spinner, Book of Ra Deluxe.

T&Cs: Min 1st dep (Exc PayPal & Paysafe) £10 for up to £300 + 30 free spins on selected Blueprint games @‌20p. 30x wagering on sum of deposit bonus applies. Max Wins £2,000. 18+. Full T&Cs apply. GambleAware.org

10. Casino Kings - 150% up to £150 + 75 Free Spins on Big Bass Bonanza

This is a very nice offer from Casino Kings combining bonus funds with free spins. You have to deposit at least £15, but the more you put down, the larger bonus you will receive. Casino Kings will match 150% of your deposit up to £150 with bonus bets. So if you deposit £100, you will receive a £150 bonus. You have to wager the free bets 50x within 30 days but to soften the blow, you will receive 75 free spins to play on Big Bass Bonanza and you have 7 days to play them.

T&Cs: New Players Only. Wager from real balance first. 50X wager the bonus. Contribution varies per game. Selected games only. Wager calculated on bonus bets only. Bonus valid 30 days / Free spins valid 7 days from receipt. Max conversion: 3 times the bonus amount or from free spins: £50. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full Terms & Conditions Apply. 18+. GambleAware.org

Licensing

We only consider online casinos that hold a gambling license from the UK Gambling Commission (UKGC). This is in order to prove games are fair and that players have a point of contact should they need any advice or guidance. Not only do gambling licenses allow online casinos to offer its services to UK players but the UKGC regulates everything from bonus terms to game betting limits to help ensure that players can enjoy online gambling responsibly and within their means.

Responsible Gambling

While there are a lot of enticing promotions and lucrative jackpots to be won on casino sites, we believe that playing games whether they be your favourite slots or poker with live dealers should be for fun. You should not feel obligated to fulfill wagering requirements for example. Welcome offers such as the ones listed above should simply provide you with the opportunity to play games with less of your own cash.

However, playing can quickly turn into a problem if you begin chasing losses. If you see any signs of this happening, in yourself, friend or family member we recommend seeking advice. Here is some helpful information and advice on safer gambling.

We prefer casino sites that encourage players to seek help and provide their own safer gambling measures such as spending limits and self-exclusion features. The sites we consider should at least provide links to responsible gambling organisations such as GAMSTOP, GamCare, Gambling Therapy etc.