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Best online casino bonuses for UK players

Perhaps one of the first things we look out for when searching for a new online casino would be an attractive casino bonus to give us a good head start. Casino bonuses constitute one of the promotional strategies online casinos employ when trying to attract new players and keep existing ones. With so many new online casinos trying to compete with each other nowadays, it's not unusual to find bonuses that amount to thousands of pounds and heaps of free spins. But are these really the best online casino bonuses available in the UK?

More often than not, newbie casino players fail to understand the fine print attached to a casino bonus. A £5,000 bonus might seem attractive, but what if it's subject 60x wagering requirement? What does this even mean?

In this article, CasinoHawks strives to make your hunt for the best bonuses a bit simpler. Simply keep reading to learn how to identify the best online casino bonuses in 2020 for your preferences, and click on our links to start playing with one of our trusted online casinos.

Best casino welcome bonuses 2020 - Top 10

Below we've prepared a list of what we deem to be among the best online casino bonuses available for UK players. We've based our decisions on several factors, which include the bonus amount and the wagering requirements attached, which determine how likely it is for players to still make a profit from the bonus. For a more 

1. Unibet casino bonus - £200 plus 200 free spins

This well-established casino continues to offer one of the best online casino bonuses in the UK, at least if you join it via CasinoHawks! New registrants will get 10 free spins with no deposit to start off with, whereas on first deposit, you'll get up to £200 as bonus money plus 190 additional free spins on a first deposit of £100. Its 200% deposit match means that if you deposit the maximum amount of £100, you’ll get another £200 as bonus money, which leaves you with £300 to play with! A 35x wagering requirement (on the bonus only) applies, with a reasonable 30-day timeframe.


£ 200 bonus on first deposit and 200 free spins on first deposit. 18+, New Customers Only. 10 Free spins on registration. Deposit £10 or more and receive 40 free spins; Deposit £50 or more and receive 90 free spins; Deposit £75 or more and receive 140 free spins; Deposit £100 or more and receive 190 free spins. 35x wagering applies on bonus & free spins winnings.

2. Casumo casino bonus - £300 bonus plus 30 no deposit spins!

Casumo casino seems to have it all lately - a decent-sized welcome bonus of 100% up to £300 preceded by a no deposit bonus of 30 free spins on Book of Dead slot that come completely wager-free! The Casumo first deposit bonus comes with a decent wagering requirement of just 30x on the bonus only, which is considerably low in this day and age!

Significant T&Cs: 18+. New UK customers only. Opt-in required. 30 free spins on Book of Dead game upon registration with NO wagering requirements or deposit required for spins AND 100% deposit bonus up to £300: Min deposit £10 and 30x wagering requirements apply on bonus (game weighting applies). Max bet applies.


£ 300 bonus on first deposit and 30 free spins on first deposit.
Wager-free spins
100% bonus up to £300 on first deposit. 18+. No deposit for wager free spins. Opt-in required. Min £10 first deposit for deposit bonus. 30x wagering requirement applies for deposit bonus and winnings. Max £5 per spin or £0.50 per bet line. Contribution to wagering requirements varies per game.

3. Genesis casino bonus UK - £100 bonus & 300 free spins!

Genesis casino bonus is 'astronomical', as the operator himself puts it. Its most attractive aspect are the 300 free spins that are up for grabs together with its 100% welcome bonus on first deposit. You'll get 30 free spins instantly upon deposit, while the remainder will be credited at the rate of 30 per day for 9 days on the classic Starburst slot. A standard 40x wagering requirement applies to this welcome bonus whereas there is a cap on winnings from free spins, which is set at £100. Genesis has also got a separate welcome bonus for live casino players, which consists of 100% up to £100, to be used on live casino games only.

Significant T&Cs:  18+ New customers only. Min. £10 deposit. 40x wagering requirement on bonus and free spins winnings. Max. bet £5 on slots, £30 on live casino. Bonuses are valid for14 days. Free spins are awarded on Starburst slot only in batches of 30/day for 10 consecutive days. Free spins are valid for 24 hours upon activation. Max. win of £100 from free spins. Skrill + Neteller excluded. Real money wager required. The Live Casino Welcome Bonus can only be used on Live Casino Games.


£ 100 bonus on first deposit and 300 free spins on first deposit. New customers only. Min. £10 deposit. 40x wagering requirement on bonus and free spins winnings. Max. bet £5 on slots, £30 on any other game. Bonus expires after 14 days. Free spins are awarded on Starburst slot only in batches of 30/day for 10 consecutive days. Free spins are valid for 24 hours upon activation. Max. win of £100 on free spins.

4. Videoslots casino bonus - £200 plus 11 wager-free spins

The new Videoslots bonus is certainly not to be missed, especially if you enjoy online slots. This is because you'll get 11 no wagering free spins on Starburst slot, with no limits on the amount you can win, as well as up to £200 as a casino bonus. The wagering on this bonus amounts to 35x your deposit only. What's more, new players will get a chance to compete in a tournament, called Battle of Slots, for a chance to win an extra 4,200 spins!


£ 200 bonus on first deposit and 11 free spins on first deposit.
Win up to 4,200 Extra Spins on Battle of Slots
New customers only. £200 bonus + 11 Welcome Spins on a random game. Min. £10 deposit. Bonus will be paid in 10% increments. Spins must be used within 60 days and all winnings will be wager-free. Min. £10 deposit. Bonus must be activated within 7 days. A 35x wagering requirement applies to the bonus.

5. LeoVegas casino bonus UK - up to £400 + 120 spins

Not only does LeoVegas casino place amongst the top industry leaders when it comes to game variety, reliability and security, but it's also welcoming new players with a very nice casino welcome bonus package which amounts to £400 and 120 free spins if you claim the full bonus amount. It all starts with 20 no deposit free spins on registration, which can be used on Book of Dead slot. Then, UK players who choose the casino bonus are in for up to £100 + 25 spins on each of their first 4 deposits (the bonus amount varies depending on the amount deposited; if you deposit £10, you get a £10 casino bonus card and 10 free spins). To claim the bonus in your real money balance, you need to complete the decent wagering requirement of 35x your deposit only. What's more, the free spins come with no wagering requirement, allowing you to keep what you win from them (with the exception of the no deposit free spins, which come with a 35x wagering requirement).

LeoVegas has also got a separate welcome bonus on live casino, which is more adapted to table game fans. If you opt for this, you'll get a deposit match bonus of up to £500 to use on live casino games (£10, £50, £100 or £250 matched by a bonus offer of the same bonus. A total of two (2) Deposit bonus offers are available. 75x real money cash wagering of the bonus offer amount (30 days from deposit) must be met before bonus is credited in cash).


£ 100 bonus on first deposit 120 bonus spins. 18+ New Customers only. 20 no deposit free spins available on Book of Dead game only. Must be claimed on the 'My Offers' page within 14 days of sign-up. Free Spins have a £0.10 value each and expire 7 days from claim. 35x wagering requirement on eligible slots before winnings are converted to cash. Select Casino offer on sign-up and deposit. 4 deposits of £10, £20, £50, £100 matched with a bonus cash offer of same value (14 day expiry). 35x real money cash wagering (within 30 days) on eligible games before bonus cash is credited. Spins credited upon deposits; under £50 =10 Spins, £50 or over =25 Spins; on Book of Dead only (3 day expiry, winnings paid in cash).

6. Dunder casino bonus UK - 100% up to £100 + 120 bonus spins

Slot players at Dunder casino are in for a nice treat in the form of a whopping120 free spins on top of their 100% match bonus! And the great thing is, you'll get these free spins regardless of whether you deposit the minimum of £20 or more! Once you register, you also get 20 no deposit free spins, whereas you'll get the remaining 100 as soon as you deposit, all of them on Book of Dead slot. The Dunder casino welcome bonus UK offer is subject to a rather high wagering requirement of 60x on the bonus, which is why it's placed below the other top 3 casinos on our list. However, it's great to know that the wagering on winnings from the bonus spins amounts to just 30x.


£ 100 bonus on first deposit and 120 free spins on first deposit. New customers only. Minimum deposit: £20. 20 spins in Book of Dead on reg. 100% bonus up to £100 and 100 bonus spins. First 50 bonus spins credited on deposit, Second 50 bonus spins credited the following day. Wagering on reload bonus: 60x. Wagering on bonus spins: 30x. Wagering must be completed within 30 days. Max bonus bet £5. Bonus is valid for a total of 21 days.

7. Casimba casino bonus UK - 100% up to £500 + 50 bonus spins

Not only does Casimba casino have one of the biggest first deposit bonuses for UK players, but it's also got a complete welcome package in store for newbies to its platform, which amounts to £2,000 plus 125 bonus spins in total! Players will get 100% up to £500 and 50 spins on 1st deposit, another 25% up to £1,000 + 50 spins on 2nd deposit, and yet another 50% match up to £500 + 25 Bonus Spins on their 3rd deposit. The wagering requirement on the Casimba bonus, however, is 35x the deposit PLUS bonus amount, which is on the high end of the spectrum. There is, in fact, a price to pay for getting such a large bonus amount, although we feel it's well suited for high rollers.


£ 500 bonus on first deposit 125 bonus spins.
500 loyalty points
New players only. 1 bonus offer per player. Min. deposit £20. Max. bonus bet is £5. Bonus funds expire in 30 days. 35x wagering on total bonus, cash & bonus spins. Only bonus funds count towards wagering contribution.

8. PlayOjo casino bonus - 80 free spins with no wagering

PlayOjo's welcome bonus is perfect for slot players looking for a good handful of wager-free spins. New UK players who sign up via CasinoHawks will get a total of 80 no wagering free spins on their first deposit of a minimum of £10. They will get 1 free spin on Spina Colada slot for every £1 deposited up to a maximum of 50 free spins. 30 more spins can then be claimed via PlayOjo's Kickers Section (only for those who use our link below to register with PlayOjo for the first time). This is an excellent casino bonus for slot players, and the only reason why we've listed it low on our list is that it cannot be used on any other casino games besides slots.

Significant T&Cs: Min. deposit £10. 50 Free Spins on Book of Dead. Spin Value: £0.10. After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section. No min withdrawal. Additional terms apply.


80 no wagering free spins on first deposit.
Exclusive Offer
New Customers joining via this site only. Min deposit is £10. 50 Free Spins on Book of Dead. Spin Value: £0.10. After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section. No min withdrawal.

9. Playzee casino bonus - £300 bonus + 100 free spins

The friendly Playzee casino has concocted a nice welcome treat for newcomers, in the form of a 100% bonus up to £300, together with 100 free spins and 500 zee points (casino loyalty points)! It's a complete package that is worth claiming, and the only reason it's earned the 9th spot on our best casino bonus list is the fact that players have to deal with rather high wagering requirements.

Significant T&Cs: UK players aged 18+ only. New players only. Min. deposit £20. Offer is valid for 15 days after deposit. Daily allocated free spins must be used within 24 hours. Offer carries a wagering requirement of x35 deposit and bonus money. Max bet with bonus money is £5. Free spins winnings capped at £50. Bonus money must be used within 30 days. Additional terms apply.


£ 300 bonus on first deposit and 100 free spins on first deposit.
+500 Zee Points
New players only. Valid for 15 days after 1st deposit. Min Deposit £20. Max Bonus Bet £5. Winnings from spins capped at £50 First 100 Zee spins 10/day. Spins must be used within 24 hours, Funds within 30 days. Bonus funds are separate to Cash funds, and are subject to 35 wagering (bonus + cash). Game weighting restrictions apply.

10. Betsafe casino bonus - 200 no wagering spins

Last but not least, new UK players at Betsafe casino can get started with a massive slots bonus consisting of 200 cash spins. These wager-free spins are awarded on Starburst slot, and the amount awarded depends on the amount you deposit and wager

  • Deposit and play through £25 on selected games to get 25 wager-free spins
  • Deposit and play through £100 on selected games to get 100 wager-free spins
  • Deposit and play through £200 on selected games and get 200 wager-free spins

Significant T&Cs: New GB customers and first deposit only. 3-day expiry of spins after they have been added. 14 days from registration to claim offer. You have a right to withdraw your cash deposit or any remaining cash deposit and any cash winnings from this deposit. If this is withdrawn, the spins and any winnings from the spins will be forfeited. All winnings from the spins will be paid out cash. Additional terms apply.


200 no wagering free spins on first deposit. New UK players only. Spins only available on Starburst. Deposit and play £25 on selected games and get 25 spins OR; Deposit and play £100 on selected games and get 100 spins OR; Deposit and play £200 on selected games and get 200 spins. Spins expire after 3 days. 14 days from registration to claim offer. Players may withdraw their cash deposit or any remaining cash deposit and any cash winnings. If this is withdrawn, the spins and any winnings will be forfeited. All winnings from the spins will be paid out in cash.

Best casino bonuses for existing players

A casino welcome bonus is surely a great thing to get, but we know that it's not the be-all and end-all. If you're looking for a rewarding online casino, you should also try to find out whether the casino has any regular bonuses that existing players may claim time and again.

Here are a few important ones to look out for:

Casino reload bonuses

Reload bonuses are deposit matches awarded to existing players who make additional deposits. The best casino reload bonuses are those that are available every week, enabling you to benefit from them time and again. Some of the best casino reload bonuses are those available at Spinit casino; here, players can claim such a bonus on Mondays, Tuesdays and Fridays!


£ 200 bonus on first deposit and 200 free spins on first deposit. New customers only. Min. £10 deposit. Spins awarded in batches of 20/day on Starburst & other NetEnt games. Spins valid for 24 hours. Max. withdrawal from spins £100. 40x wagering requirement within 14 days on bonus & free spins winnings. Max. bet £5 on slots, £30 on all other games.

Free spins for existing players

Similar to a reload bonuses but consisting solely of free spins, these are perfect for slots players! Existing customer free spins are usually awarded on deposit, in a similar way to a reload bonus. One casino which regularly awards free spins for existing players is Novibet casino. If you love this kind of bonus, we recommend you have a look at our separate article about free spins for existing players.


£ 250 bonus on first deposit. New UK customers only. Min. £10 deposit. Min. 35x wagering (deposit + bonus) on selected games within 30 days. Neteller & Skrill deposits excluded. Additional terms apply.

Cashback bonuses

This involves giving existing players some of their money back either if they lose or regardless of whether they win or lose. This is a great bonus to look out for if you’re an avid player but at the same time would like to set certain limits to your spending. The best cashback bonuses are those that are awarded on every bet, no matter whether you win that bet or not. PlayOjo casino awards such a bonus thanks to its OjoPlus scheme; here, you'll get a small percentage back on every back, in cash and with no wagering requirements!


80 no wagering free spins on first deposit.
Exclusive Offer
New Customers joining via this site only. Min deposit is £10. 50 Free Spins on Book of Dead. Spin Value: £0.10. After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section. No min withdrawal.

Loyalty and VIP bonuses

Online casinos like to give something extra to players who spend substantial amounts of cash with them over a certain period of time. For this reason, the best casinos have a loyalty scheme which allows players to collect points which can be exchanged either for cash or for casino bonuses. Similar VIP bonuses apply to players who qualify as VIPs; in this case, the casino may award bigger bonuses. The best loyalty bonuses are those that are awarded in wager-free cash, which you may withdraw or use as you please.

How to find the best casino bonus

There are a number of factors which will help you decide whether a bonus will be worth claiming or not. These should all be clearly listed in the casino bonus terms and conditions, which admittedly, are rather annoying to go through.

Look out for a good percentage match or number of free spins, a low wagering requirement, a reasonable time limit and maximum bet, and no caps on winnings, and then you can conclude that you've had a good deal!

Here are the most important factors to consider if you're about to claim a new casino bonus:

Percentage match amount

A 50% bonus means you get £50 extra in bonus money if you deposit £100. A 200% bonus means you'll get £200 extra for your £100 deposit, which means that you get triple the amount! For this reason, it's obvious that the percentage of the deposit match is quite significant, especially if you're looking for the biggest casino bonuses.

Wagering requirements

These indicate how many times you need to wager your bonus before you can withdraw any winnings from it. If the wagering requirement is 20x and you deposit £10, you need to stake a total of £200 on the casino's games before being able to withdraw any cash. Sometimes, the wagering requirement applies on both your deposit and bonus amount. This would mean that if you deposit £10 and get another £10 as part of a 100% bonus, you still need to wager £200 if the wagering requirement is 20x.

Bonus Time limit

This refers to the time limit for wagering your bonus or your winnings from bonus free spins. If you don't wager your bonus within this time limit, you will lose any winnings you earn from it, so it's a very important criterion to note. A good time limit would be 60 days; avoid claiming bonuses with a time limit of 15 days or less unless you intend to play a hell of a lot!

Maximum bonus bet

A lot of online casinos specify the maximum bet (per spin/round) you can place while using your bonus. This is to lessen the chances of someone winning too much! A normal maximum bet amount is £5, but with regards to bonuses such as wager-free spins, this can be much less (for example it's very common to get free spins at just 20p each, which means that in reality it's very hard to win much from these spins).  

Caps on winnings

This is something you should definitely be aware of to avoid disappointment. We don't really like it when a casino imposes a limit on the amount you can win, because this could mean that if you're lucky enough to win a £1,000 the casino might only give you £100! Fortunately, we can recommend a number of casinos with bonuses that have 0 wagering requirements and no caps on winnings. One of them is PlayOjo casino, which welcomes new depositing customers with 80 free spins with no caps on winnings. Check it out via the link below.


80 no wagering free spins on first deposit.
Exclusive Offer
New Customers joining via this site only. Min deposit is £10. 50 Free Spins on Book of Dead. Spin Value: £0.10. After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section. No min withdrawal.

To sum it all up, the best casino bonuses are the ones which combine the above criteria in a reasonable manner. Look out for a good percentage match or number of free spins, a low wagering requirement, a reasonable time limit and maximum bet, and no caps on winnings, and then you can conclude that you've had a good deal!


Best UK Casino Bonuses according to bonus type

Best Casino Welcome Packages

The best casino welcome bonuses in the UK normally include a combination of things that will help you get started in the best possible way. We love those casino welcome bonuses that include both a good amount of bonus money and free spins, such as the bonus on offer at Unibet casino. Here, you get a complete welcome package consisting of 200% bonus plus a total of 200 free spins as a new player, a great bonus which comes with a 35x wagering requirement.


£ 200 bonus on first deposit and 200 free spins on first deposit. 18+, New Customers Only. 10 Free spins on registration. Deposit £10 or more and receive 40 free spins; Deposit £50 or more and receive 90 free spins; Deposit £75 or more and receive 140 free spins; Deposit £100 or more and receive 190 free spins. 35x wagering applies on bonus & free spins winnings.

Best Free Spins Bonus

Free spins are another common inclusion when it comes to the best online casino bonuses in the UK. For slot lovers, these offer an excellent opportunity of trying some slots out for free before risking their own money. The best free spins bonus would consist of a good number of spins with reasonable wagering requirements (if any!). 

An online casino which offers a multitude of free spins is Sloty casino, which offers a staggering 300 spins upon the first deposit on a selection of popular slots that include Starburst, Gonzo’s Quest and Red Riding Hood. This casino also offers a 100% match deposit as well as 50% and 25% matches on the second, third and fourth deposits!

And if you prefer wager-free spins, then the cash spins bonus at Betsafe casino may be just your thing (this may amount to 200 free spins, as described above).


200 no wagering free spins on first deposit. New UK players only. Spins only available on Starburst. Deposit and play £25 on selected games and get 25 spins OR; Deposit and play £100 on selected games and get 100 spins OR; Deposit and play £200 on selected games and get 200 spins. Spins expire after 3 days. 14 days from registration to claim offer. Players may withdraw their cash deposit or any remaining cash deposit and any cash winnings. If this is withdrawn, the spins and any winnings will be forfeited. All winnings from the spins will be paid out in cash.

£ 300 bonus on first deposit and 300 free spins on first deposit. New customers only. Min. £10 deposit. Spins awarded in batches of 30/day on Starburst & other NetEnt games. Spins valid for 24 hours. Max. withdrawal on spins £100. 40x wagering requirement within 14 days on bonus & free spins winnings. Max. bet £5 on slots, £30 on all other games.

Best Live Casino Bonus

Finally, almost the same criteria apply to live casino bonuses as to slots and table game bonuses: the best live casino bonus is one which either has a decent percentage match plus reasonable wagering requirements, or one which involves a generous cashback amount. We prefer percentage match bonuses on live casino games, since these are awarded regardless of whether you win or lose, whereas cashback bonuses are simply given as consolation to players who lose their first live casino game. The best live casino bonuses are also those that can be used on a variety of tables, and not just on Blackjack or Roulette, for instance. You will find more information on the current offers available in our separate live casino UK guide.


£ 100 bonus on first deposit. Min. £10 deposit. 100% up to £100 on 1st deposit Certain deposit types methods excluded. 40x wagering requirement within 30 days. Real money first when playing bonus. Weightings apply.

Save time and money with the best casino bonuses!

We cannot stress enough how important it is to take some time to identify the best casino bonuses based on your preferences and requirements. This is why we suggest always having a quick look at the casino terms and conditions, to make sure that you’ll eventually be able to withdraw any winnings made with bonus money. If you’re confused where to start, click on the casino links on this page and head over to their ‘welcome bonus’ section, where you’ll be able to find more details about their terms.

And of course, when you’re done identifying the best casino bonus out there, simply register and start taking advantage of your welcome package!

best online casino bonuses in the UK

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