The Best UK Casino No Deposit Bonuses for September 2023

In the simplest terms, you’d describe a no deposit bonus as funds or free plays you receive from an online casino without having to stump up any cash yourself. But really, the answer is a bit more complicated than that. Any online casinos’ no deposit bonus can take several different forms, and there’s no one size fits all approach taken by sites across the UK gambling industry today. 

You might be thinking of a no deposit bonus as a hefty wedge of cash that’ll be sat waiting in the cashier section of your account once sign up is complete. While these sorts of promos are out there, they’re vanishingly rare. Plus there are always going to be a few conditions attached – especially wagering requirements, which we’ll discuss later. 

So what do today’s best casino no deposit bonus promotions really involve? Well for the most part, you’ll need to sign up and make at least an initial deposit to unlock any bonuses – as little as £5 or £10 in many cases. But that’s where the good stuff kicks in. From a stack of free spins on a popular slot to cashback on any of your losses, casino sites dish out opportunities to top up your balance and bag winnings without continuing to deposit funds into your account. What’s more, players who stick around and play may find free spins and bonus funds fired their way from time to time. 

As we mentioned, there’s no one size fits all to these kinds of promos. Different sites take wildly different approaches, especially any new 2023 casinos, but the aim of the game here is entirely the same – to offer you chances to play that go beyond what you have (or haven’t in a few cases) cashed into your account from the get-go. Once you’ve opted in and met the requirements to unlock the no deposit bonus, you can use these extra funds or credits to play casino games for real money without dipping into your own. 

This is a common form of casino bonus in which a site will agree to top up your balance with a set amount of money once you’re signed up and conditions are met. In most cases, making at least an initial deposit will be one of those conditions. But as soon as that’s done, the bonus cash is released and all yours to play with – no further deposit needed. 

If you’re lucky enough to find a casino site that gifts bonus cash without putting any of your own funds in at all, we salute you. But these entirely free no deposit bonus promos are rare. Either way, you can expect to see the bonus funds drop into your account as soon as the terms are met. 

Don’t forget, almost all bonuses like these are subject to wagering requirements and cashout limits. In other words, you can’t just take the funds as real money and run. You’ll need to meet these playthrough requirements before you’re allowed to withdraw. 

Here’s one UK casino that’s running a great bonus cash promo at the moment: 

Players can’t get enough of free spins, and iGaming sites know it. Slots are the most popular corner of any online casino’s games lobby, and these offers give you the chance to play and win big without parting with your own cash. Think of them as the golden tickets of the casino world. 

Casinos sometimes offer these as a standalone promo when you sign up, but often they’re tacked onto other bonuses, including bonus cash and deposit match offers. They’re a great way to get more than you bargained for when you sign up for a new casino with a no deposit bonus. 

Again, and not to spoil the party, but there may be wagering requirements attached. So you’d need to play and wager the equivalent of the bonus spins several times over before you withdraw any cash. There are also usually restrictions as to which slots the spins can be used on. 

Here’s a few top class casinos with the best no deposit bonus offers on spins:

A cashback no deposit bonus does what it says on the tin. Once you sign up and add funds – including any bonus funds you might be gifted – you’ll be ready to play. With a cashback offer, you’ll be offered some of your money back whenever you play certain games and lose. This usually applies on slots, but we’ve also seen cashback promos extended across entire sites, including table games and live casino online.

The cashback amount is usually in the region of 5% to 10%. It might not sound like a lot at a glance, but that’ll certainly add up. What’s more, some of the sites that run this do so as a lifetime offer. You’ll endlessly get funds back from every lost wager without needing to deposit again. 

Here’s one casino running a fantastic cashback promo for new players:

It’s one thing you signing up, but the best online casinos know they need to keep you around. While the no deposit bonus UK promos we list are aimed towards new players, that doesn’t mean the fun ends there. 

Weekly or daily spins offers are especially common for players who come back regularly. You may also find bonus funds dropped into your account as an occasional sweetener, sometimes as much as £10 or £20 a time. You can then play and wager on games with this money rather than dipping into your own pot. 

Leo Vegas casino is one site we know is class for dishing out to existing players:

After all that you may be wondering how no deposit bonuses differ from other types of welcome packages. In truth, the line is pretty blurred, and it’s common to see a no deposit casino bonus like free spins included as part of a broader welcome bung to new players. 

What blurs this line further is that what we call a ‘no deposit bonus’ will often expect you to pop some money into your new account first anyway – to deposit, in other words. 

The key difference is that no deposit bonuses will offer a fixed reward in return for signing up and depositing that minimum amount. For example, £20 in bonus funds and 50 free slot spins. These rewards will then be available to play with separate from your own funds, so you can play for real money without dipping into your own pocket again. 

In contrast, other welcome promos like deposit matches will offer to match what you put in, up to a limit. In that sense, how much you’re willing to deposit is front and centre here. You can use these to boost your bankroll bigtime, but you’ll be agreeing to play with a lot more of your own money – especially if it’s a bonus that’s spread over several deposits. 

For the most part, it couldn’t be easier to sign up and claim a no deposit bonus in 2023. The process is quick and straightforward, and all being well you should have your no deposit bonus funds to play with in no time. 

Follow these simple steps to claim your no deposit sign up bonus. If you’re ever unsure of anything, always remember to read the small print. 

1. Find a bonus you like the sound of – including those we list from top quality, legit UK casino sites right here. 
2. Click through and complete the steps to sign up – filling out personal info like name, address, and currency, and following any verification steps. 
3. Ensure your bonus is added – check the promos section on your account to be sure it's there. We've advice below if it's not. 
4. Meet any requirements – you may first need to add your own funds and/or wager before the features of the bonus are unlocked. If that's the case, take your pick from the eligible casino payment methods and make at least the minimum deposit.  
5. Play – enjoy these bonus chances to win real money without using up your own.

Before you can make withdrawals, you’ll also need to verify your identity using photo ID like a driver’s licence or passport. 

On the specifics of claiming the casinos’ no deposit bonuses, that’s where things differ a little. 

Many casinos make life easy and add your bonus automatically, especially when you link through and sign up via a site like ours. Once set up you should see the offer waiting to be claimed in a promotions area of your account. Provided you meet the requirements, such as an initial deposit, you’ll then have access to your extra funds, daily spins, and more. 

Some casino sites will prompt you to opt into a welcome offer – usually as part of the account creation process. That’s often because they allow newbies to pick any one of multiple welcome promos available to them. Just ensure you’ve selected the right one, click through, and continue your registration. 

If a casino site doesn’t add a promo automatically, it’s often because they use no deposit casino bonus codes. Whenever you’ve got an account all sorted but nothing is showing in your promotions basket, check back to wherever you found the offer and look for a code. Failing that, try the site’s dedicated promotions page and see if there’s a code for you to copy there. Once you’ve got it, head back to your promos backet and simply enter to apply it. We see fewer and fewer no deposit bonus codes in 2023 as things tend to be automated, but this is always something to be aware of. 

It’d be lovely if it were all that simple. But as with so many things in life, you need to keep an eye on the terms and conditions. While the best online casinos in the UK are more than happy to throw something new players’ way, even the best no deposit bonus casino will put a few guardrails in place for themselves. After all, if they made it too easy for players to walk away with a stack of money, they’d soon go out of business. These are some common conditions attached to promos at no deposit bonus casinos. 

These specify that you must bet the total amount of any bonus funds a certain number of times over before you can withdraw any remaining bonus as real cash. 

This is the maximum amount of funds you can withdraw from any bonus winnings. 

There may be limits that apply around how much you can wager each time you spin or play while using your bonus funds, which will therefore cap your potential winnings. 

Some casinos are a little picky about how you pay up to play, and only funds deposited via traditional methods like debit card or bank transfer can unlock a bonus. Others like Neteller casinos accept e-wallet transfers and even cryptocurrency. Always check this first. 

These terms will determine how good any new no deposit casino bonus actually is. They’re the difference between a bonus being super lucrative or barely worth your time. That’s why we list a solid variety of options here on our site for you, and would always recommend you check the T&Cs before you get stuck in. 

So you’re signed up, have met your requirements, and those bonuses are all yours to play with. Now how do you make the most of them? 

Exactly how can use your no deposit bonus will depend on the casino’s rules. It may only be available on certain casino games, and subject to limits on how much you can wager at a time. Still, give these tips and tricks a try to make your bonus credit go as far as it can. 

Slot games with a higher RTP will, on average, pay out more often than low RTP slots. When you have a limited number of free spins or credits, it’s vital to get as many wins as possible in a short time. Looking for the best-paying slots at slot sites in the UK? We’ve done you a favour and listed them right here. 

All casino bonus sites will impose a cashout limit on no deposit bonuses. You don’t want to go through the emotional rollercoaster of winning a big jackpot only to find your no deposit bonus comes with a £20 cap on cashouts. Always check the T&Cs of a no deposit bonus to see how much you can withdraw, then play accordingly.

Wagering the minimum stake might make your bonus credit go further, but completing the wagering requirements will take much longer. You should opt for an average or higher bet if given the option. You’ll either lose fast and move on or max out your win and claim a bigger prize.

Similarly, sticking with one or two paylines might feel like a good way to stretch out those bonus credits. Each play will cost less after all. But you’ll be seriously lowering your chance of uncovering a winning payline or hitting a jackpot by limiting your options in this way.

You’ll usually be given a few options as to where you can use bonus funds and spins. Not all games will be eligible, so if you pick the wrong one, you'll end up dipping into your own money. You can almost always play slots with bonus rewards. though there's usually a select list of titles. It's rarer to see table games included in a no deposit welcome bonus, while it's hit and miss as to whether live casino is covered - though some casinos go absolutely all in with this. All we can recommend is that you thoroughly check the T&Cs before choosing a game in the lobby.  

If Lady Luck has swung things your way and you’ve made a nice return on your no deposit bonus, you may be eager to cash out. And we’d love it if it were that simple – but life rarely is. 

To save themselves from losing too much money to players, a no deposit bonus casino will put a few guardrails in place. Some may have limits on how much you can withdraw at any one time, or how much cash you collect from your bonus pot. Meanwhile, most casinos will attach wagering requirements to the bonuses they dish out. 

Wagering requirements are something you’re likely to encounter before you can withdraw winnings from free no deposit bonuses. They’ll be stated clearly in the terms and conditions of any bonus you opt in to, and in practice they mean that you’ll need to continue playing before you can take your winnings out. Say for example you took up a site on their £10 bonus funds offer, with 30x wagering requirements. Once you’ve used up those funds on online slots for real money – and hopefully won – you’d need to have wagered £300 on this game and others at that casino before you could withdraw any remaining bonus money. 

Use our handy wagering calculator to see what that means in practice for any bonus you’ve got your eye on. 

At Casinos.com, we’re as big on quality casino experiences as you are. From those of us who play online ourselves to the former game designers among our ranks, we compile and share our industry experience here in one handy place. 

As soon as a UK casino site catches our eye, we get to work testing and reviewing it. First and foremost, we check every casino is legit, safe, and fully licensed to operate in the UK with games that are entirely fair. That’s just step one. 

After that, we get to work inspecting site design, casino games libraries, customer support, withdrawal times – the list goes on. We’re huge on mobile casino in the UK and know that’s how most of you play, so we always check how a site is optimised for different devices. We also analyse each site to see how you can pay to play. That allows us to take you direct to the top online casinos that accept Maestro, Visa, PayPal, e-wallets, and more. 

When we’re done, we publish our transparent reviews and list all the best no deposit casino bonuses for you right here.