Best Welcome Bonuses and Sign Up Offers in UK
Richard Trenchard
Last updated 5 Sept 2025
If you are looking for the best sports betting sign up offers, then you are in the right place! Earn hundreds of pounds in free bets today with our recommended sign up offers at online betting sites and start placing bets on your favourite sports within minutes.
List of Best Betting Sign up Bonuses in UK for 2025
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The Best Welcome Bonuses and Sign Up Offers Article Content
- 1.What Are Sign Up Bonuses and How Do They Work?
- 2.Top 10 UK Betting Sites with Welcome Bonus for 2025
- 3.Betting Sites Terms & Conditions
What Are Sign Up Bonuses and How Do They Work?
There are several different types of sign up offers that you can claim, some matching the amount that you deposit in free bets, others might provide you with a free bet just for registering, and some will potentially give you your money back as cash or bonus funds.
Check out some of those sign up offers you will expect to find with sports betting sites below:
Free Bets
In the UK, free bets are the type of bonus you receive when you sign up to most online bookmakers, and they will usually be rewarded after you deposit and place your first bet at specific odds and selections, and sometimes even on specific markets.
For example, you may deposit £10 and place a £10 wager to receive £30 in free bets, or it could be an alternative sign up offer that sees you receive more or less free bets than that specific amount.
Other ways in which you could receive free bets from betting sites in the UK is by matching the amount you deposit in free bets, rewarding you with more free bets when you deposit more.
Free Bets No Deposit
Not typically an offer available with online sports betting sites, but another possible sign up bonus that can be claimed by new players is a free bet with no deposit.
Free bets no deposit are when you are rewarded with a bonus just for signing up and exchanging your personal details, with no money needing to be added to your account first.
Odds Boost
With this type of sign up offer, your first bet will have its odds boosted, meaning you will earn more profit if your first wager is to be a winner.
This could be by 10%, 15%, 20%, or maybe even more, and the odds boost is at the discretion of the online betting site.
With some online bookmakers, when you are a registered user you will receive smaller odds boosts on a regular basis, while you can also take advantage of acca boosts too.
Money Back Offers
Money back offers are a way for you to place your first bet with less risk because you know that you will either have another shot at winning with a free bet, or with your money back as cash.
Mostly, a money back offer will provide you with a free bet rather than cash if your first bet loses, however it still gives you a second shot at winning a bet on any of your favourite sports on your new account.
Top 10 UK Betting Sites with Welcome Bonus for 2025
Bonus:
Deposit £5 or more & get 300% that amount in bet credits up to £30
Key Terms:
- Claim within 30 days
- Place qualifying bets equivalent to deposit with one selection of 1/5 (1.20) or more
- Bet credits expire after 7 days
Best For:
In-play betting
For those of you who have yet to sign up with bet365 are missing out, with the online bookmaker undoubtedly having the best offering on the market currently. Providing players with incredible new initiatives in their design and product, once registered with bet365 you will be mystified why you hadn’t joined them before.
Best of all, if you are just signing up you can get 300% of your first deposit in bet credits up to £30, and you can use it at whichever stakes suit you and on any markets of your choice.
Bet365 Pros and Cons
- £30 in bet credits for new players.
- Price boosts and cashback for existing members.
- Instant deposits and quick withdrawals.
- HQ-quality live stream of major sports.
- Bet Builder, in-play, live betting and other features.
- Certain payment methods don’t qualify for the bonus.
- The live stream doesn’t cover some sports.
| Overall rating | 94% |
|---|---|
Bonus Offers & Free Bets | 95% |
Usability, Look & Feel | 96% |
Mobile App | 97% |
Payment Methods | 94% |
Customer Service | 90% |
Licence & Security | 100% |
Rewards & Loyalty Program | 85% |
94%
Bonus:
£30 in free bets when you place any bet
Key Terms:
- Minimum £0.05 bet on single or each way at odds of 1/1 (2.0) or larger
- Free bets credited as 3x £10 free bets
- Customers using Skrill or Neteller will not qualify
Best For:
Football markets available
Sky Bet has an impressive new welcome offer compared to all other bookmakers because the risk is extremely small, and you are guaranteed to receive £30 in free bets. All you need to do is place a bet of just £0.05 and you will receive your bonus, unlike many sign up offers in the UK which require a minimum £10 bet to receive their free bets.
Moreover, Sky Bet has many football markets for the most popular leagues and tournaments as well as the smallest ones worldwide. On top of that, you can enjoy many odds boosts for several sports, if you are interested in more than just football.
Bonus:
Bet £10, get £30 in free bets
Key Terms:
- Only available to be claimed with debit card deposits
- Minimum stake of £10 on odds of 1/2 (1.5) or higher
- 3x £10 free bets once qualifying bet has settled
Best For:
Promotions
William Hill has come a long way in improving their platform, and they continue to do so to this day. In addition to that, they are giving away a fantastic £30 in free bets for new customers when they place a £10 bet, with those free bets having no limitations on what sports or markets you use them on.
Make it an elevated betting experience with William Hill thanks to their enhanced statistics for football, excellent market offerings for all sports, and most of all emphatic list of promotions for existing players.
William Hill Pros and cons
- Generous welcome bonus for new customers.
- Ongoing promotions for existing players.
- Fast and secure deposits and withdrawals.
- Live-streaming of major sports, including horse racing.
- A friendly and reliable customer care team.
- Some payment methods don’t qualify for the welcome bonus free bet.
- Not all sports are broadcast on the live stream.
| Overall rating | 95% |
|---|---|
Bonus Offers & Free Bets | 96% |
Usability, Look & Feel | 95% |
Mobile App | 95% |
Payment Methods | 97% |
Customer Service | 94% |
Licence & Security | 98% |
Rewards & Loyalty Program | 93% |
95%
Bonus:
£50 in free bets when you deposit £10
Key Terms:
- Deposit £10+ via debit card
- Bet £10+ at 1/1 (2.0) within 7 days
- Receive 3x £10 sports free bets + 2x £10 acca free bets
Best For:
Welcome offer
If you just want to sign up with the best welcome bonus on the market for sports betting, then we strongly recommend that you join Betfred. Giving away £50 in free bets for those of you who are new to Betfred, it’s the best offer among all of the ones we recommend currently.
More reasons to claim the Betfred sign up offer include the fact that you get 3x £10 free bets for any sports bets of your choice, and 2x £10 accumulator free bets too.
Betfred pros and cons
- Available online and as a physical store.
- Offer several markets and competitive odds.
- Provide regular betting insights and tips.
- No esports betting available.
- No loyalty programme for regular bettors.
| Overall rating | 92% |
|---|---|
Bonus Offers & Free Bets | 94% |
Usability, Look & Feel | 91% |
Mobile App | 92% |
Payment Methods | 93% |
Customer Service | 94% |
Licence & Security | 97% |
Rewards & Loyalty Program | 85% |
92%
Bonus:
Bet £10, get £40 in free bets
Key Terms:
- Place a £10 bet at minimum odds of 1/1 (2.0) or larger
- 4x £10 free bets will automatically be credited to your account
- Free bets expire within 7 days
Best For:
Football betting
The BetMGM sign up offer is available to new players through Flashscore today, and you can earn a huge £40 in free bets with the new platform in the UK when you sign up, deposit, and stake £10 on a bet at odds of 1/1 (2.0) or bigger.
Perfect for football betting with an extensive list of markets for all matches, BetMGM is one of the best online bookmakers in the UK right now and one you should definitely join if you haven’t done so already.
BetMGM Pros and Cons
- Strong and trustworthy brand reputation.
- Generous £40 welcome bonus for new players.
- Lots of sports, competitions and teams to bet on.
- A fast, responsive and secure mobile betting app.
- Ongoing bonuses for existing players.
- No telephone support.
- Doesn’t yet accept crypto deposits.
- May limit or ban some players.
| Overall rating | 95% |
|---|---|
Bonus Offers & Free Bets | 96% |
Usability, Look & Feel | 95% |
Mobile App | 96% |
Payment Methods | 94% |
Customer Service | 93% |
Licence & Security | 98% |
Rewards & Loyalty Program | 92% |
95%
Bonus:
Bet £10 on any sport and receive £30 in free bets
Key Terms:
- £10 qualifying bet at odds of ⅘ (1.8) or more
- 1x £10 free bet builder, 1x £10 free football bet & 1x £10 horse racing free bet
- Cashed out or partially cashed out bets do not qualify
Best For:
Football promotions
BetUK is perfect for those of you interested in football betting, both for its welcome offer and the regular promotions that you will be able to claim once you have an account. But first of all with the welcome offer, you can get 3x £10 free bets when you sign up through Flashscore and make a £10 deposit, making it one of the best offers currently available in the UK.
From there, you will then have access to their long list of markets across all different sports, but especially all the football leagues and tournaments worldwide. Look out for football promotions on a daily basis, as well as things like weekly acca boosts for your football bets.
BetUK Pros and Cons
- £30 in free bets for new players
- Ongoing bonuses and promotions.
- Bet using your laptop or mobile.
- Cash out your bets with a click.
- Bet on a long list of live markets.
- Not every deposit method gets you the bonus.
- Cash-out isn’t yet available on every bet.
| Overall rating | 93% |
|---|---|
Bonus Offers & Free Bets | 95% |
Usability, Look & Feel | 94% |
Mobile App | 94% |
Payment Methods | 93% |
Customer Service | 92% |
Licence & Security | 97% |
Rewards & Loyalty Program | 88% |
93%
Bonus:
Bet £5, get £20 in free bets
Key Terms:
- £5 bet placed at odds of 1/2 (1.5) or higher
- Account credited with 4x £5 free bets upon bet placement
Best For:
Horse racing betting
Currently providing players with an enhanced welcome offer, you can get an incredible £20 in free bets when you register with Coral as a new player today. You will be registered with one of the longest standing platforms in the UK, and a site which has competitive odds to ensure its players maximise their returns on football betting, and all other sports.
Sign up to Coral today and claim one of the best welcome offers the online betting site has ever provided for new players.
Pros and cons of Coral
- £20 free bet for new customers.
- Profit boosts for winning players.
- Free horse racing livestream.
- Instant deposits and quick withdrawals.
- Online security and privacy protection.
- Not all games are available to livestream.
- Some deposit methods don’t qualify for the welcome bonus.
| Overall rating | 95% |
|---|---|
Bonus Offers & Free Bets | 95% |
Usability, Look & Feel | 96% |
Mobile App | 95% |
Payment Methods | 93% |
Customer Service | 95% |
Licence & Security | 98% |
Rewards & Loyalty Program | 90% |
95%
Bonus:
Bet £5, get £25 in free bets
Key Terms:
- Minimum £5 bet at odds of 1/2 (1.5) or higher
- Only deposits via debit card or Apple Pay are accepted
- 4x £5 free bets on any sportsbook market + 1x £10 free bet for any EFL market
Best For:
Accumulator bets
Another long-standing online betting site in the UK, and one that is actually in partnership with Coral, is Ladbrokes. The best thing about the Ladbrokes welcome offer is that it is perfect for players who are new to sports betting and might not want to wager £10 on their first bet.
With Ladbrokes, you can sign up and deposit just £5, place a £5 bet and still receive a huge £25 in free bets to use on many different markets that they have available.
Ladbrokes advantages and disadvantages
- £20 in free bets for new players.
- Ongoing bonuses for existing players.
- Instantly deposit funds and quickly withdraw winners.
- Watch horse racing and sports on the live stream.
- Benefit from a long list of features, including live betting.
- Cash-out isn’t available on every bet.
- Some payment methods don’t qualify for the welcome bonus.
| Overall rating | 97% |
|---|---|
Bonus Offers & Free Bets | 90% |
Usability, Look & Feel | 95% |
Mobile App | 95% |
Payment Methods | 100% |
Customer Service | 100% |
Licence & Security | 100% |
Rewards & Loyalty Program | 100% |
97%
Bonus:
Bet £10, get £20 + 50 free spins
Key Terms:
- Bet £10 on an 4+ leg accumulator bet with minimum odds of 3/1 (4.0)
- Receive 4x £5 free bets
- Receive 50 free spins for use on Big Bass Splash
Best For:
Rewards
One of the newest online betting sites in the UK, Midnite has already taken the market by a storm with their fantastic welcome offer which combines sports betting and casino. Additionally, they have a vast amount of rewards which you can claim each week, which is perfect for those of you looking to place regular bets across multiple sports and competitions.
Whether you are new to betting or a regular, Midnite is an excellent choice for a welcome bonus to claim today.
Pros and cons of Midnite:
- Claim a welcome bonus when you join.
- Registration is quick, easy and secure.
- Deposit and withdraw using a range of trusted methods.
- Quick access to the customer care team using Live Chat.
- Ongoing promotions for existing players, including price boosts.
- Not as experienced as some of the competition.
- Limited sports are available to live stream.
| Overall rating | 92% |
|---|---|
Bonus Offers & Free Bets | 93% |
Usability, Look & Feel | 92% |
Mobile App | 92% |
Payment Methods | 91% |
Customer Service | 92% |
Licence & Security | 96% |
Rewards & Loyalty Program | 87% |
92%
Bonus:
Bet £10, get £30 in football free bets
Key Terms:
- Bet £10 at minimum odds of 1/1 (2.0) or greater within 7 days
- £5 acca free bet, £5 bet builder free bet & £5 football free bet upon qualifying bet settlement
- £10 acca free bet + £5 football free bet 24 hours after qualifying bet settlement
Best For:
Competitive odds
BetVictor is an incredible online betting platform, and their current welcome promotion is a perfect fit for those looking for free bets to use on football. Interestingly, and preferably for a lot of people, BetVictor splits up their free bets into £5 denominations which means you can place more bets out of the welcome bonus you receive.
Sign up with BetVictor today and enjoy extremely competitive odds for all sports as well as £30 in free bets for registering as a new player.
BetVictor Pros and cons
- Comprehensive market offering
- Insightful Blog and Bet Calculator
- Regular prizes with free-to-enter competitions
- Limited live streaming
- Standard offering that doesn’t provide unique features
| Overall rating | 93% |
|---|---|
Bonus Offers & Free Bets | 93% |
Usability, Look & Feel | 94% |
Mobile App | 93% |
Payment Methods | 92% |
Customer Service | 93% |
Licence & Security | 97% |
Rewards & Loyalty Program | 87% |
93%
How to Claim a Welcome Bonus
Obtaining your welcome bonus with any sports betting site is simple, and takes just a few steps. Take your pick from our choice of betting sites with a welcome bonus and claim your offer today by following the steps laid out below!
- Click on one of our suggested sports betting sign up offers to be taken to the offer with the online bookmaker
- Click on “Join” or “Register” and enter your personal details to create an account with that online betting site
- Make a deposit with an acceptable payment method for the offer and meet the minimum deposit requirement
- Wager the necessary amount at the required odds and amount of selections
- Upon placing your bet or upon settlement, receive your free bets or bonus funds courtesy of the online betting site!
Betting Sites Terms & Conditions
There are numerous terms and conditions that you must be mindful of when signing up for a welcome offer. Check out some of those you are likely to encounter below, and always make sure you check the terms and conditions of a betting sign up bonus before decide to claim it.
- Eligibility Requirements – First of all, you will need to be in the location in which the bookmaker operates, and 18 or above to be able to create a betting account because that is the legal age of gambling in the UK.
- Maximum Win Limits on Free Bets – This is not always the case, but look out for certain welcome offers that restrict the amount that you can win on bets placed with bonus funds or free bets.
- Wagering Requirements – Wagering requirements mean that any winnings you make will have to be wagered in cash 1x, 2x, or however many times specified by the online betting site. Always look out for whether wagering requirements are included in the terms and conditions of a sign up bonus.
- Market Restrictions – Some free bets as part of welcome promotions at online betting sites will be restricted to certain sports, or even markets that you can bet on. For example, you might only be able to use your free bets on a bet builder, or one of the free bets you receive might only be eligible for horse racing.
- Expiration Periods for Bonuses – Usually, and with the majority of the sign up bonuses suggested on this page, free bets or credits granted by betting sites will expire after 7 days. But, some bookmakers might choose to make that time period shorter, so make sure you look out for how long the free bets will be available for once credited to your account.
Frequently asked questions
What is the best betting site with a welcome bonus?
Currently in the UK, the best sign up offer has to be with Betfred who are giving new users £50 in free bets when they place a £10 bet after registering as a new player.
What is the best betting app with a welcome bonus?
Undoubtedly the best betting app on the market is bet365, who are offering new players up to £30 in bet credits when they make a £10 deposit and wager £10. This therefore means the best betting app with a welcome bonus has to be bet365 currently.
Are welcome bonuses available for existing customers?
Welcome bonuses specifically are reserved for new players only. There are plenty of promotions that existing players can take advantage of, but the offers available to be claimed on this page are limited to just new players only.
Can I withdraw my bonus winnings immediately?
Provided there are no wagering requirements attached to the welcome offer, you will be able to withdraw any winnings from your bonus funds. If you have bonus funds in your account, they will not be able to be withdrawn and the money must be cash.
Does a welcome bonus require some deposit?
Unless you are able to claim a free welcome bonus with no deposit required, you will always need to add funds in order to be credited with some free bets or bonus funds by an online bookmaker. When it comes to sports betting, it’s rather uncommon to receive a welcome bonus with no deposit.
Why is it better to bet with licensed bookmakers?
It is always best to play at licensed bookmakers because they are guaranteed to protect your personal and financial information. On top of that, the legitimacy of licensed online betting sites means that you will never have to chase up about withdrawals or money that you have won, simply because regulators will ensure they go through every protocol correctly.
About the author
We're delighted to have Richard on board at Flashscore. Offering a wealth of experience, Rich used to be a national newspaper and sports journalist before focussing entirely on the igaming and sports betting spheres. That means he is able to combine super sharp editorial instinct and crisp content with a wealth of information, having worked with some of the biggest names in the business over the past decade. So, when you see Rich's name on an article, you know it's packed information you can trust. Whether it's information on a particular casino, betting terms explained, betting tips, the best betting sites around, or anything else, Rich has got your back.