About BonusFinder
BonusFinder UK brings you the best casino and sports betting bonuses in the United Kingdom. You can trust us because we have years of experience in the gambling industry and we go through each gambling site we recommend.
We don't just rely on our own opinions, though: we also check out customer reviews and evaluate the betting operations from various perspectives.
We only recommend websites which have been licensed by the Gambling Commission in the UK, meaning they are all safe to play on and each provides responsible gambling safeguards to all players.
You can read more about us and our policies from our website, and send us any questions you have about our operation.
Top 10 Betting Sites with Bonus Offers in the UK
We love sports and betting on everything from football to horse racing in the UK. Because we’re such eager bettors, betting sites try to lure new customers with lucrative free bets and additional features.
Below are the best betting sites with bonuses we’ve selected for all types of bettors. You can see brief overviews of each and details of their bonuses; if you find something you like, you can scroll back up to sign up!
1. BetMGM
BetMGM is one of the newer betting sites in the UK, having launched in 2023 after great success in the US. Naturally the sportsbook has plenty of UK’s favorite sports, the major leagues from the US, and smaller sports like surfing and alpine skiing.
BetMGM has an app in the App Store and Google Play Store, so you can choose how you want to engage with the site. In addition to the sportsbook, a player account also gives you access to the BetMGM Casino.
Welcome Bonus: Bet £10, Get £40. You get four £10 free bets, two regular (minimum odds 2/1) and two accas (min odds per line 1/2). eSports and non-UK/IE horse races are excluded from the bonuses. You have seven days to play through your free bets before they are withdrawn.
- Main Benefit: Existing customers can also choose from several promotions
- Main Drawback: The navigation doesn’t match the American version and is a little clunky
2. Betgoodwin Sports
Although BetGoodwin has the best selection of horse racing and greyhound betting out of all betting sites on this list, there are plenty of other reasons you should sign up here.
For example, they have a good selection of virtual sports, daily price boosts on different markets, and 25+ sports to bet on. BetGoodwin has 4/5 rating on Trustpilot with over 1,000 reviews, so other players like you are very satisfied with the overall experience.
Welcome Bonus: You get up to £25 back for losing bets made on your first day. You have to bet at least three £10 bets at evens or higher to qualify; all losses are counted together and you get 50% back as a single free bet up to £25, which you have seven days to wager.
- Main Benefit: Each match has a lot of betting options to choose from
- Main Drawback: The payment options are limited to just debit cards
3. NetBet Sports
NetBet has a lot of everything: sports, markets, promotions … You name it, they got it which is why this site is one of our favorites. NetBet has been operating since 2001 and has nearly 2,000 reviews in Trustpilot.
NetBet’s website is a little old-fashioned and the bonus isn’t quite as good as BetMGM’s, which is why we’ve rated it a bit lower. In addition to the sportsbook, NetBet Casino has live games, lottery, poker, and classic slots.
Welcome Bonus: With a £10 initial bet you get £10 free bet for the Bet Builder and 25 no wagering free spins on Big Bass Splash. You have seven days to play both parts and the free bet must have odds of evens or higher.
- Main Benefit: Quick betting tips rotate on the bottom of the screen so you can make more informed bets
- Main Drawback: Most of the focus is on football so fans of smaller sports might feel a little underwhelmed
4. Gentleman Jim
Gentleman Jim is perfect for horse and greyhound racing bettors as these markets are prominently featured on the site.
For bettors interested in other sports, Gentleman Jim has a nifty selector at the top of each sports page. You easily choose the league, game time, and country to find the games you want to bet on.
Welcome Bonus: We don’t currently have a bonus for Gentleman Jim’s sportsbook.
- Main Benefit: Betting options for TV and other special events you won’t find on every site
- Main Drawback: Doesn’t offer eSports betting
5. Unibet
Unibet is one of the leading gambling providers in the world and have amassed a lot of experience which shows in their platforms. In the Google Play Store, the Unibet sports betting app has a 4.1 rating with over 10,000 reviews, indicating the players really love the app.
The website is a great place to bet at, too. The layout might see a little busy but there’s a lot of great information and you can quickly access the bets you want to make, in addition to Unibet Casino.
Welcome Bonus: Bet £10, Get £40. You get £20 in free bets and £20 in casino bonus funds which have a 50x wagering requirement. The free bets are split into two: £10 for Bet Builder and £10 for an acca with 4+ selections.
- Main Benefit: The bet calculator is a great feature for new bettors who need a bit of assistance
- Main Drawback: The welcome bonus includes a £20 casino bonus which you might not want to use if you just bet on sports
6. Betfred Sports
Betfred is one of the most popular sportsbooks in the UK. It has thousands of reviews in the app stores and Trustpilot, most of them being positive.
We think one of the main strengths of Betfred is the ease-of-use: you can all relevant information about betting, Betfred’s own operation and your bets with just a couple of clicks.
You can also use the same account at Betfred Casino, which is gaining more popularity among casino players.
Welcome Bonus: Betfred has the best welcome bonus in the UK for new customers, bet £10 & get £50 with bonus code BETFRED50. You get three £10 free bets and two £10 acca bets; you have seven days to wager each of the free bets.
- Main Benefit: The Betfred Insights page has a ton of betting info you can use to try to make better bets
- Main Drawback: The only promotions available when we checked were for football and horse racing
7. BzeeBet Sports
BzeeBet is the best betting site for those of you who bet on small sports. For example, you can find several markets for floorball, futsal, and handball.
In addition to that, the site has a nice layout which helps in finding information. We would appreciate a couple more betting promotions but the extensive selection of payment methods and over 30 sports means BzeeBet is a fantastic sportsbook for most bettors.
Welcome Bonus: Bet £10, Get £10 Free Bet. You have two weeks to place your qualifying bet and the free bet is placed on your account within 24 hours of bet settlement. Golf is excluded from the free bet but all other sports are fair game.
- Main Benefit: The best eSports betting site in the UK
- Main Drawback: Doesn’t have live streaming which many of the competitors offer
8. bet365
You were probably wondering when we’d get to bet365. As one of the leading UK sportsbooks, we’d be surprised if you didn’t already have an account here.
bet365 has tons of sports, live streaming of several sports, ongoing promotions every day of the week and a stylish website that provides all the info you need to make wagers. The bet365 casino is also a great place to play!
Welcome Bonus: We don’t currently have a welcome bonus for the bet365 betting site.
- Main Benefit: The trending sports give you a quick overview of what’s coming up in the next couple of days
- Main Drawback: It’s hard to think of anything negative, but a site this popular could have more emphasis on accas
9. BetVictor
BetVictor Casino is one of our favourites and the sports betting site is equally good. The brand is best suited to those who play casino games and bet on sports since BetVictor intertwines the two throughout the site.
Football and horse racing are separated to their own tabs, making it easy to check out the latest odds for both.
Welcome Bonus: We don’t currently have a welcome bonus for the bet365 betting site.
- Main Benefit: The bet builder is particularly good here
- Main Drawback: There are a few casino games here and there on the betting side of the site which is a little distracting
10. JeffBet
Don’t be fooled by the modest appearance of JeffBet. The brand might not have as many sports or markets as some of the bigger names on this list, but it’s a great site for those who just bet on a couple of popular sports.
The free bets offer is also one of the best you can find and you can win up to £200 from your wager.
Welcome Bonus: Deposit £10, Get £30 Free Bet. You get a single free bet and can win a maximum of £200 with it. Note that Skrill and Neteller deposits are excluded from the bonus.
- Main Benefit: The simple website layout means you’re not overwhelmed with choices
- Main Drawback: You can’t see other than live bets without registering or logging in
How We Choose the Best Sportsbooks
We have a strict review process we go through for every brand we add to our listings. Here are the most crucial things we look at before recommending a betting site to you.
1. Check Licensing
The very first thing we do whenever a brand approaches us to get listed on our site is to make sure they have the UKGC licence. This is important for several reasons.
First, only licensed operators are allowed to offer online gambling in the UK. Therefore, we only interact with brands who intend to operate legally. Second, the UKGC has very specific requirements when it comes to payouts, types of games, and how the overall operation should handle responsible gambling.
This means that the sites with UKGC approval are the absolute best sportsbooks and casinos since they follow these strict regulations and rules. To learn more about UK Gambling Commission, check out their website.
2. Explore & Test the Website
Once we’ve confirmed the betting site has the proper licence, we move on to testing the website ourselves. These tests are conducted by our expert writers, Henri and Rob, who are both experienced gamblers and know what British users appreciate in online gaming sites.
Our tests begin with signing up, claiming the welcome bonus, and placing some initial bets to figure out the processes. Then we go through the site thoroughly, try to spot any issues that would impact our review, and withdraw some funds.
Common Terms & Conditions for Bonuses
Betting promotions have terms and conditions which you have to meet before cashing out. A typical free bet has restrictions regarding the stake amount, match, markets, minimum odds, and maximum win amount. All of these are clearly listed for each bonus we offer so you can take a look before committing to one.
- Bet Limit: Unless it's a no deposit bonus, your qualifying bet must be worth a certain amount to get the bonus. This might not be the same amount as the minimum deposit, so make sure to take a look prior to depositing.
- Minimum Odds: There's usually 1/2 (1.5 in decimal odds) minimum odds you have to meet. For some bonuses like accas, the required odds might be higher; if you don't meet them, the bet doesn't count towards wagering.
- Maximum Win: The maximum tends to be in the tens of thousands, so it's not something to worry about since most free bets you get are worth £10 or £20. If you do land a massive win, the sportsbook will instruct you further on claiming it.
- Time Limit: Free bets have a strict time limit. Usually, you only have seven days to use a free bet token you've received. If you don't complete the wagering in time, the remaining bonus funds and winnings are withdrawn from your account.
- Splitting: In most cases, you can't split free bets. If you receive, for example, £20 then you need to bet £20 on a single market. However, some bonuses give you several free bets which you can use on different markets.
3. Evaluate Mobile Options
We also check whether the sites operate well on mobile phones and whether they have betting apps. Since players differ in whether they want to download new apps every time they sign up, we don’t place a lot of weight in having the best app.
Instead, we check that the mobile use is convenient no matter which option you choose and that the main functions of the site are present in the mobile versions too.
If you do want to download a betting app, you can find our top 10 betting apps in the UK from a separate page.
4. Review User Opinions
As you noticed when reading the list of the best betting sites, we also check out user reviews. Although we don’t gather them on our site, we track what players are saying on websites like Trustpilot.
In addition, reviews in app stores are important for us: they often inform others whether the betting site responds to customer complaints or whether the application is a little buggy.
5. Compare to Other Sites
Finally, after we have formed our expert opinions on the betting site it’s time to compare the site to others. We take notes on all sites we review, so you can be sure that we are not just making up these lists without properly comparing all aspects of the sites.
Here are some of the crucial features we assess when comparing betting sites:
- Bonuses & Promotions: Most betting sites give you free bets if you deposit and wager £10 or more. Therefore, we pay particular attention to sites who give you something else! In addition, a wide variety of ongoing promotions gets a big thumbs up from us as it makes existing customers’ loyalty worthwhile.
- Variety of Markets: The best betting sites have well over 20 sports to bet on and at least 10+ markets per sport. Of course, football rules in this country but it’s important that all sorts of players are catered to with niche sports and various leagues.
- Competitive Odds: There’s usually no sportsbook that consistently has the best odds, but each site in our top 10 frequents the top spots at least sometimes for several sports.
- Customer Service: At least a live chat is a must have for all betting sites, but we also appreciate a comprehensive FAQ page and perhaps a contact form for emails.
- User Interface: Clear graphics, easy-to-navigate menus and legible fonts are the main things we look for in this category.
- Payment Methods: As you noticed above, some of our top 10 sites have just debit cards are payment methods, so this isn’t the most crucial factor on our checklist. However, it can boost an otherwise okay site into a better position on our overall list of UK betting sites since being able to use eWallets or Trustly is very important to some bettors.
What to Consider When Choosing Betting Sites
While we think we picked a diverse range of betting sites with bonuses you can claim today, you might be looking for something else. To help you pick a new site for your sports bets, here are the main factors you should consider before signing up for a betting site and claiming a welcome bonus:
The Best Bonuses for You
It’s very important to make good decisions when selecting a betting bonus, just like you do when you are actually wagering on sports. For example, if you never make accas, don’t choose a bonus which only applies to them.
Make sure to read the terms of the bonus before claiming it to avoid surprises; the betting bonuses we have chosen have quite advantageous terms for bettors and have no wagering requirements for the free bets.
In addition, PayPal, Skrill and Neteller deposits are not included in many free bet bonuses, so keep that in mind when you select a bonus since you have to use a different method to make your initial deposit.
Ease of Registering & Depositing
Registering for an online betting site usually quite straightforward but there might be some differences in the forms and whether you have to provide card details or a phone number when you sign up.
In addition, some sportsbooks require that you opt in to accept a bonus. This is not time consuming but if you don’t tick the box, you miss the bonus offer which can be irritating for some players.
Naturally we also recommend you pick betting sites where you can use your favourite payment method for the smoothest deposits. If you only want to use PayPal, don’t pick a site where that eWallet isn’t available.
Available Markets
Although most betting sites have plenty of markets and sports to choose from, you might not find very niche sports on all sportsbooks. That’s why it’s important to check which sites have the sports you want to bet on.
Below are the top sportsbooks for the most popular sports in the UK:
🎮 eSports | Unibet |
🏇 Horse Racing | Betgoodwin |
🥊 UFC | NetBet |
⚽ Premier League | Bet365 |
🏟️ US Sports | BetMGM |
⛳ Golf | Virgin Bet |
🏏 Cricket | Betfred |
⚽ Football | Ladbrokes |
🏉 Rugby | Gentleman Jim |
🎾 Tennis | Betway |
Ongoing Promotions
Once you’ve used your sign up offers, you probably would like to have more bonus money to bet with. Fortunately many betting sites have bonuses for existing users too!
Below are some of the main existing customer free bets you can find on UK betting sites after you’ve used up your sign up bonuses:
- Free Bet Clubs: If you make frequent bets, look into whether you can get awarded with free bets. You have to bet with a certain amount of money during the week and then get a free bet in return. For active bettors, these are excellent betting promotions since you would be wagering anyway but now get more in return.
- Reload Bonuses: Some sites give you a free bet here and there when you add more funds to your account. The minimum amounts you need to deposit can vary a lot depending on the sportsbook you’ve chosen, so you can check the details from your account.
- Consolation Prizes: Sometimes you make a “sure bet” that falls through anyway, or the game looks like it’s over but the underdog pulls off an upset. In these cases, you can sometimes get a small free bet as a consolation prize. These are available intermittently so keep an eye out for them during big events.
- Loyalty Programs: Finally, some bookies have loyalty programs that award you free bets and other prizes if you stay active on the betting platform. For example, BetMGM has an extensive loyalty program that includes perks for their retail properties in addition to bonus bets.
Sports Betting in the UK
The sports betting market in the UK has been extremely active online for years now. Therefore most of you who are reading this page are probably familiar with the information here, but there have been some recent developments in the online gambling industry.
Most important is still to bet legally only on licensed betting sites. In addition, make sure to follow all terms and conditions listed on the site so you don’t end up getting banned or excluded against your will.
UK Gambling Commission
The UKGC is the regulating body of all gambling in the United Kingdom. They ensure all betting sites with a licence act in accordance with the Gambling Act of 2005 and all other regulations enacted since then.
The purpose of UKGC licensing is to prevent illegal activities, promote fair and transparent gaming, and protect children and vulnerable people. To keep their licence, a betting site must stay compliant at all times and the UKGC conducts frequent reviews of betting operations.
You can find more information on the UKGC from their website but the most important thing you need to know is that we only work with UKGC licensed sites so all of them are entirely legit and trustworthy.
Sports
In the UK, you can bet on a ton of different sports, ranging from UK favourites like football and rugby to US sports and niche Winter sports. In addition, horse racing has its own section on many sportsbooks with numerous betting options.
You can also bet on virtual sports, which are similar to online casino games: each simulated event, like a horse race or tennis match, is determined by a random number generator.
All users get the same event at the same time, and can wager on the outcomes. While it might not be the exact same as betting on real sports events, many players still enjoy this newest addition to betting catalogues.
Bet Types
The Gambling Act of 2005 has a few definitions for betting, but the most common is “accepting a bet on the outcome of a race, competition or other event or process”.
These are the vast majority of bets you can place on betting sites, including the traditional options like betting on the winner, scores and points of specific players.
Every betting site has numerous bet types of each sport they offer, so we recommend you go through some helpful guides on betting on sites like Betfred and Unibet to understand the bet types better.
Responsible Betting Tips
Before you go off and start betting, we want to give you a few final tips. Our core value is responsibility and we want to make sure that betting stays a fun activity and doesn’t take over your life.
- You can set up controls for your gambling on sportsbooks: you can choose to have your own betting limits, time outs, and loss limits, among others. Take advantage of these controls to make sure your betting stays within your own limits.
- Don’t get swept up in the moment. Be very critical of the bets you make and only bet on events you understand. It’s very easy to think that you’re bound to hit big at some point if you just keep wagering, but sports are unpredictable and you could end up losing a lot if you haven’t placed any controls on your account.
- If you want to self-exclude from all sports betting sites, visit the GamStop website. Registering on the site blocks you from using your existing accounts and signing up on new sites.
- If you need help with a gambling problem, there are plenty of resources out there to help you. In addition the Gambling Commission, organizations like GambleAware and Gamblers Anonymous can help you through peer suppor and professional aid.
Remember that online betting is never an easy way to make money; only bet money you can afford to lose. And as always, if the fun stops, stop.
Last updated:
FAQ
- What is the best free bet bonus?
-
Betfred has the best betting bonus in September 2025 as they will give you £50 in free bets when you deposit and bet £10. This is a great offer to grab as you get five separate £10 free bets.
- How do I get free bet credits?
-
First, register at a sportsbook that is currently running a free bet promotion. Then follow the instructions on getting the bet. Typically this includes placing a real-money bet of £10 or more with odds of 1/2 or higher, but the details depend on the betting site.
Note that there might be specific horse racing free bets on some sites.
- What is an accumulator?
-
An accumulator bet, or "acca", combines multiple selections on a single bet. For the bet to pay out, all selections must come true. Accumulator betting is very popular in the UK because you have a chance to rack up massive odds and potential winnings with a low stake.
An example of Premier League acca:
- Wolverhampton to beat Tottenham at 3/1
- Liverpool to beat Man City at 3/1
- Man Utd to beat Newcastle at 2/1
- Crystal Palace to beat Everton at 4/1
You can find acca free bets from many betting companies.