Casino Welcome Bonus & Sign Up Offers For December

Find your dream online casino bonus right here. I've pulled together stacks of the very best welcome promos that casino sites in the UK are running. They cover all bases, from generous deposit matches to bucketloads of free spins, and even the odd no wagering offer.

And that's not all. If you stick about, I'm here to share my many years' experience in getting a good deal at a casino. I'll tell you how to make your bankroll go further, and reveal common mistakes to avoid. But first, let's see the current crops of casino bonuses. 

Top 20 UK First Deposit Bonuses

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Five of My Best Online Casino Bonuses in the UK for December

Whoever said variety is the spice of life could have been referring to top online casino bonuses. We're pretty sure they weren't but the idea is true! There are hundreds to choose from and this is a good thing – competition keeps online casinos honest and their bonuses attractive.

But having so many options can also lead to 'analysis paralysis' as you spend hours comparing each one and searching for the best welcome bonus casino. To avoid this, our experts have come up with a list of five fantastic deposit bonuses for different purposes. For each one, someone from Casinos.com signed up and claimed the bonus to test it out.

Mr Vegas: Our First Choice Welcome Up Bonus in the UK

• Features: 100% deposit match up to £200 + 11 wager free bonus spins.
• Wagering requirements: 35x your initial deposit. The free spins come with no wagering requirements.
• Need to know: activate the bonus by heading to the ‘My Bonuses’ part of your profile within 30 days of making your deposit. The bonus will be credited to your account in ten equal instalments. The max you can wager on any bet is 50% of your bonus amount or £20 – whichever is lowest. You have 60 days to complete the wagering requirements.
• Our view: we loved the generous timeframe to claim this casino deposit bonus, and 11 free spins with no conditions attached is not to be sniffed at. The bonus can be applied to all sorts of games too, including slots, table games, and the live casino.

Duelz Casino: Best Online Casino Deposit Bonus for Slots

• Features: £100 bonus and 100 free spins on the Rich Wilde and the Book of Dead slot.
• Wagering requirements: 30x for the bonus money and your deposit, 45x for any winnings with the bonus spins.
• Need to know: you can win up to £500 using the bonus money and £100 using the 100 free spins, which is generous compared to other well-known casino sites.
• Our view: the maximum cash wins here are attractive and it's nice to get 20 free spins on Book of Dead for five days in a row. This lets you get to know Duelz Casino better. However, considering the wagering on the free spins is quite tough considering the maximum win is only £100.

NetBet: Best Casino Bonus Offers for Free Spins

• Features: up to 500 free spins on your first deposit.
• Wagering requirements: 40x wagering on any winnings you make with the free spins.
• Need to know: bear in mind you receive 50 free spins immediately after your qualifying deposit, then the remaining 450 spins come in batches of 25 in the next five days. You could receive between 0 and 75 free spins daily until you have all 500. 
  Also, don't forget to have Marketing Consent turned on to get daily free spins updates or you won't receive the remaining 450 free spins. Remember to use the bonus code shown when making your first deposit.
• Our view: if you're looking for the best free spins welcome offer, this has to be up there. Five hundred spins to play around with and get to know NetBet Casino is a very attractive offer. It's a bit annoying you have to have marketing communications accepted but you can always change this after you've received your 500 spins.

Spin and Win Casino: Best Casino Bonus for Maximum Win

• Features: get a 100% deposit bonus up to £250 and 100 extra spins.
• Wagering requirements: 30x on your bonus amount and any wins earned. 
• Need to know: PayPal deposits aren't accepted for this bonus. You can only use your deposit bonus on certain slots, which excludes progressive jackpot slots. Some of the games included for the bonus money are Big Bass Splash, Book of Dead, and Cash Strike Hotstepper. There are also restrictions on the games you can play with the free spins. You can only choose one slot from the Fishin' Frenzy series like 'The Big Catch'. The maximum win with the bonus cash is £1,250 and it's only £50 with the free spins.
• Our view: I like that this bonus has variety and the wagering requirements aren't unreasonable. You can win a healthy chunk of change with the bonus money, if you'rem lucky, and there's some really fun games included for the bonus spins.

Barz Casino: Best Deposit Bonus and Extra Spins Offer

• Features: a 100% first deposit bonus up to £300
• Wagering requirements: 40x your bonus money and deposit amount
• Need to know: the minimum £20 first deposit is higher than most out there but so is the maximum bonus. Moreover, you have 72 hours to use the bonus spins. If you win with your bonus spins you'll receive money in the form of bonus cash, which - along with your deposit amount - must be wagered 40x. Also, winnings from your spins are capped at £20. Plus, the minimum cash withdrawal allowed is £20.
• Our view: we like that you get bonus money and spins and the fact the maximum bonus is higher than normal but the wagering requirements are quite strict.

Types of Welcome Offers in the UK

There are always multiple types of online casino bonus on offer, so it pays to understand what they are. Here, we've broken down the most popular bonus types you are likely to come across.

Casino Welcome Bonus

Online casinos use welcome bonuses to help attract new players. You generally have to deposit some of your own money to unlock a casino welcome bonus, so it’s widely referred to as a matched deposit bonus. Let's take a look at how it works.

Let's say you find a 100% welcome bonus up to £200. That means if you deposited £200 of your own money, you’d receive an extra £200, giving you £400 to play with. A 200% welcome bonus up to £500 would see you given £750 to play with if you deposited £250 of your own money, and so on.

Just remember to check the wagering requirements and read the small print before deciding which is the best casino welcome bonus for you. In our view, the following welcome bonus casino sites have some of the best casino welcome offers right now:

No Wagering Casino Bonus

A no wagering casino bonus allows you to enjoy free goodies without wagering requirements. This means if you win anything after your qualifying deposit, you can withdraw your bounty straight away! This is why many players regard this type of offer as the best online casino bonus in the UK. This bonus can take many forms, including casino no wagering free spins or  cash.

But as you can probably imagine, these promotions are rare. But some casino bonus sites, especially new online casinos, will offer no wagering bonuses as they back themselves to make such a great first impression when you try out the site that you’ll want to stay. 

Best No Wagering Casino Bonuses in December 2024

Why not check out this no wagering bonus and you could be cashing out your winnings in no time?

Playsunny Casino

• Features: 20 wager-free spins on Big Bass Splash
• Wagering requirements: none. Just deposit £10.
• Need to know: when you make your first qualifying £10 deposit at Playsunny Casino, you'll get 20 spins to bet on Big Bass Splash and you can withdraw any winnings as soon as you want. Deposits from e-wallets like Neteller and Skrill won't count for this promotion.
• Our view: we loved the generous timeframe to claim this casino deposit bonus, and 11 free spins with no conditions attached is not to be sniffed at. The bonus can be applied to all sorts of games too, including slots, table games, and the live casino.

Free Spins or Extra Spins

Using free spins in UK casinos gives you a package of extra spins on an online slot. Usually these are restricted to particular games, but some offers apply to a whole range of slot titles.

Extra spins can come in the form of a standalone bonus, or they could be part of a bigger slots welcome bonus in the UK. Extra spins could come with a deposit match bonus, for example.

Once you've used all of your free spins, any bonus money you win will be added to your account balance. At the best slot sites in the UK, sometimes the bonus wins will automatically automatically be withdrawable as cash, but usually this amount is subject to wagering requirements before you can actually make a cash withdrawal.

The following welcome bonus casino sites have excellent extra spins offers:

No Deposit Bonus

As the name implies, a no deposit bonus in the UK is essentially a freebie: you get a small bankroll to play with without making a deposit first. 

So what’s the catch? Actually, there are two. First, the amount you are given is usually much lower than for a deposit match bonus, which reduces your chances of winning. Second, wagering requirements on these bonuses are often pretty high, often in the ballpark of 50–60x.

Still, these bonuses are a way for you to try a new casino or game without risking any of your own money, so they’re not to be sniffed at.

Reload Bonus

Casino sites will often dish out reload bonuses to keep customers loyal. This is where your bankroll is given a top-up at certain times, or when earlier bonuses have been used up.

Reload bonuses are generally smaller than a welcome bonus, but they give you an added incentive to keep playing… and extra chances to win.

Cashback Bonus

A cashback bonus is a reward where a percentage of your stake is returned to you as cash. It typically applies to specific transactions or spending categories, allowing customers to save money or earn back a portion of what they spend.

Cashback bonuses are becoming more common and our users have mentioned that they like the security of having a percentage of their money returned to them.

Loyalty Promotions

Many online casinos have systems in place to reward loyal customers. Generally, this involves giving you points as you play, with more points awarded for higher wagers. 

You can then exchange these points for free bets, free spins, or other rewards. This is another tool designed to keep customers loyal, and it’s worth scrutinising, as it can help you make money when playing.

For example, you might receive 1 point for every £1 you bet on online poker or table games and 5 points for every £1 you bet on real money slots in UK casinos. Then, these points can be exchanged for bonus money or even special prizes like a far-flung holiday. A really generous loyalty programme can make the difference between earning a profit or incurring a loss over the course of the year.

Birthday Bonuses

It's always nice to get a little something on your birthday. Many online casinos like to get in on your celebrations, no matter how big or small your plans are. Sites will sometimes offer you a bung in the form of a casino birthday bonus -  usually a few free spins on a particular slot. Though we have also seen the occasional one-day deposit match from time to time, among other promos. Unlike some other bonuses you won't usually need to go in search of this offer yourself. Once you're signed up and verified at a casino, they'll naturally have your birthday on record. When your b-day rolls around, they'll get in touch either in your account area or by email and SMS to inform you of your gift.

VIP Bonuses

If you place a high volume of bets or you are classed as a high roller, you could qualify for VIP bonus treatment. Such benefits may include:

• cashback on bets
• quicker withdrawals
• specific tailored bonuses
• lower wagering requirements
• a personal account manager
• birthday gifts
• tickets to concerts or sporting events
• trips
• gadgets and luxury goods.

Mobile Casino Bonuses

Some online casinos will offer unique bonuses for playing on their mobile casino, although these are pretty rare now. It used to be the case that casino sites would encourage players to offer bonuses as a way of encouraging them to play via mobile. But these days almost every casino has a mobile-first strategy, which means the site is designed to work just as well on mobile as on desktop.

Some operators go further, and create real money casino apps that you can download to a smartphone or tablet. 

Here are some of our favourite casinos to play on mobile:

Refer a Friend Programmes

Many casinos will reward you for encouraging friends and family to sign up for an account. The bonus you receive will generally be tied to the amount your friend deposits.

Of course, this bonus will also have terms and conditions, including wagering requirements, and a limit to how many times it can be used.

Live Casino Bonuses

Live casinos are well established in the UK today, with demand growing all the time. As competition is fierce, some casinos try to stand out by launching promotions for live games. 

If you sign up for a live casino bonus, you can play all manner of table games and other exciting games, while interacting with the dealer and your fellow players. However, even the best roulette sites will probably feature bonuses with more challenging wagering requirements than their promotions for slots.

New Casino Bonuses for Specific Games

You will often notice that casinos tie a casino bonus to certain games. Starburst, Gonzo’s Quest, Jack and the Beanstalk, and Twin Spin are common slot games that you will find tied to the latest casino bonuses. 

You may also come across bonuses linked to new slots, as the game developer, casino, or both try to encourage you to give the new game a go. 

We recommend the following casinos for their outstanding selection of games of all types:

How to Choose a Casino Bonus: Our Tips You Need to Know

It’s easy to get bamboozled by flashy offers and claims, but when it comes to casino bonuses the devil really is in the details. So before you sign up to an offer that seems too good to be true, these tips help you understand what’s in the small print.

Understand Casino Bonus Wagering Requirements

Wagering requirements are simply the number of times you have to wager the online casino bonus before you can withdraw any winnings. Some of the best casino sign up offers in the UK will come with these conditions attached, however some don't.

For example, let’s say you sign up for a £100 casino deposit bonus, and it comes with a 30x wagering requirement. In this scenario you’d have to keep betting the bonus amount until £3,000 has been wagered (£100 x 30).

Other factors that affect how much you need to wager include if you need to wager the bonus amount and your deposit amount, or just the bonus. Also, different game types contribute different percentages to wagering (more on this next), and generally most games are excluded.

How Much Will You Need to Wager?

So how can you work out exactly what your wagering amount should be? By using our handy Wagering Calculator of course!

Click the button below and the calculator will open in a pop-up.

Our Wagering Calculator

Some of The Best Casino Bonuses in December 2024 Ranked by Wagering Requirements

Find Out Which Games Are Eligible… and Which Aren’t

If you’ve ever signed up for an amazing UK casino bonus without realising it’s only playable on games you have no interest in, you'll know it's not ideal.

Simply put, most casino offers are only valid for select games. This could be a single slot game, a specified group of slots, or a mixture of slots and other table games. 

Not only that, it’s often the case that certain eligible games don’t count 100% to wagering requirements. Table games or live casino games, for example, usually count around 10–20% towards wagering requirements. 

What does this mean in reality? Well, let’s take the same example given above. A £100 deposit with a 30x wagering requirement means you must wager £3,000 in total before you qualify for any winnings. If your game of choice, e.g. blackjack, has a 10% contribution, every £10 you wager only contributes £1 towards that £3,000 goal.

So, if you only wanted to play blackjack online, you’d effectively have to wager £30,000 before you could claim any winnings!

As you can tell, it’s really, really important to know which games the bonus covers and, just as importantly, which ones it doesn’t.

Check When the UK Casino Bonus Expires

Another hugely important thing to know is how long you have to use up your bonus. After all, the last thing you want is to find the perfect promotion only to later find that you only had 72 hours to fulfil a £50,000 wagering requirement!

Casino bonus time limits range from hours to months, and that’s not all. While bonuses are often given out straight after making your first deposit, sometimes the benefits are staggered. So, you’re given a portion of the bonus each day or week until you receive all of it. And to make it even more tricky, each instalment may have time limits or wagering requirements, so remember to check!

Find Out if Deposits, Bets, or Winnings Are Capped

Even the best casino welcome bonus will have limits on how much you can deposit. For example, a 200% deposit match with a maximum bonus amount of £100 means that £50 is the most you can expect the casino to match. You can of course deposit more, but you won’t receive any more ‘free’ money as a result. 

By the same token, each game that’s eligible for the bonus is probably going to have maximum bet sizes attached to it. For example, it could be £0.10 per spin on a qualifying slot, or £25 for a single bet on a table game.

Why do the casinos do this? To avoid you winning too much on the back of a bonus, which would quickly see them out of profit. And to this end, another common condition is to cap maximum winnings altogether. That way, even in the worst case scenario the casino site is able to limit its losses while still giving players a healthy win if the maximum is achieved.

Make Sure Your Payment Method Is Eligible

This is something that trips up a lot of players. Many casino bonus sites are very particular about which payment providers can be used to deposit money for redeeming bonuses. If you’re not aware of this, you may waste a lot of time and money playing a bonus you have no chance of winning from.

Typically, super fast e-wallets are not eligible for claiming bonuses. This is because they provide anonymity, which allows people to sign up with different email addresses and claim bonuses several times. So you may need to use alternative online casino payment methods if you're used to an e-wallet. 

Therefore, you need to read the small print to make sure your payment method isn’t excluded from the bonus.

Don’t Forget to Activate the Online Casino Bonus

Finally, a tip that should be obvious but is possible to get wrong. In a nutshell, some bonuses are automatically credited to your account after you sign up and deposit money, while others need to be activated. This could be in the form of a casino bonus code you have to enter at the cashiers, or by going to your profile and selecting your bonus of choice.

Of course, if you don't activate the bonus, you won’t be able to enjoy the extra spins or money you thought you were getting.

How to Claim Sign Up Bonus Offers

Signing up for the latest casino bonuses is simple. Just follow these steps:

1. Use Casinos.com to identify the best and most reputable casino bonus sites in the UK.
2. Sign up with your personal details, choose a password, verify your email address, and provide proof of ID.
3. Read the terms and conditions thoroughly. Look out for wagering requirements, game eligibility, and minimum deposits to gain a full picture of the bonus rules.
4. Input the relevant code, if there is one, when you make your first deposit. If you don't enter the code, you could miss out on the bonus.
5. Make a deposit using an eligible payment method. Remember it's best to avoid Skrill or Neteller for your initial deposit. You will then unlock the welcome bonus and the funds will be credited to your account.

Remember, you can only make a withdrawal once you've completed the wagering requirements (if there are any). Once you've claimed your first casino deposit bonus, you'll be a fully-fledged member of the casino and you can receive reload bonuses and other ongoing casino promotions.

How We Rate Online Casino Offers

Wondering how we arrive at the casino bonuses we recommend, when there are literally hundreds to choose from? Here are the stages our experts go through:

1. We check the casino bonus carefully. That means we take a close look at what’s on offer, whether it’s a deposit match, free spins, or anything else. And since there are a lot more to casino bonuses than the headline numbers, we dive into the T&Cs to see what conditions are in place. We check for wagering requirements; eligible games; time limits; caps on deposits, bets, and winnings; what payment methods are accepted, along with any other detail that’s important.
2. We sign up and claim the online casino bonus. There’s no point in us recommending a bonus that doesn’t do what it says, or has a painful sign-up process. To make sure, we test everything just as a real customer would, and if we think that this bonus is more trouble than it’s worth, it won’t make the cut.
3. We make sure the casino bonus sites are legit. Here at Casinos.com we only recommend the best casino bonuses from trustworthy sites that hold a licence from the UK Gambling Commission. We also provide full reviews of all UK casinos featured here, so you can see how well they perform in terms of game variety, game quality, user experience, banking methods, customer service, software options, payout rates, and security measures, alongside how attractive the casino sign up bonus is.