Best Betting Sites with Welcome Bonus UK – Top Bonuses & Codes Today

If you are on the lookout for leading betting sites with welcome bonus offers, you are in the perfect place! With welcome bonuses being a key attraction for UK bettors, it is important to search for top bonus bets and bonus codes when choosing an online betting platform.

Carla Naude
Carla Naude

Last Updated: 2025-04-03

Chad Nagel

9 minutes read

Featured bookmakers
Full T&C’s apply 18+

#Ad• 18+• New UK customers• Bet £10 on accas with 4+ legs, min odds 3/1 (4.0). Get 4x £5 Free Bets and 50 Free Spins• valid for 7 days on selected bets and games only• T&Cs apply.

Full T&C’s apply 18+

#Ad• 18+• New customers only• Max free bet £10• Min wagering £20• First deposit £20• Must be used within 14 days• Odds over 2.00• Full terms and conditions apply

Full T&C’s apply 18+

#Ad. 18+. New customers only. 7 days to place qualifying bet of £10 at 1/1 (2.0) to receive 4 x £10 Free Bets. 7 day expiry. Exclusions apply. Stake not returned. 18+. Full T&Cs apply.

Full T&C’s apply 18+

#Ad• 18+• Must place min £10 bet• Odds must be > 1.50• Must be a new customer•. Only applies to first bet• Rewards credited 48 hours after first bet• Full terms and conditions apply

Full T&C’s apply 18+

#Ad. 18+. BeGambleAware.org. New GB customers only. Min £10 debit card deposit. Place a £10+ bet at Evens (2.0)+ on Sports within 7 days. Opt in for £20 in free bets and £20 Casino Bonus. Valid for 7 days. Geographical restrictions and T&C’s apply.

Full T&C’s apply 18+

#Ad. 18+ New users only · Minimum deposit required · Bet bonus valid 14 days · Wagering applies to bonus winnings · Restrictions on certain bet types · Bonus credited after deposit · Country restrictions may apply · One bonus per user/account · Maximum winnings cap applies · Valid for specified sports bets · Must verify identity for withdrawal · Terms may change without notice · Gambling help links provided.. Other Promotional Play Restrictions Apply. T&Cs apply.

Full T&C’s apply 18+

Ad• 18+• New UK customers• Mobile exclusive• Min Deposit £10 •Min stake £10• Min odds Evs• Free bet applied on 1st settlement of any qualifying bet• 30 days to qualify• Free bets expire in 7 days• Cashed out/Free Bets won’t apply• 1 Free Bet offer per customer, household• T&Cs apply• T&C's apply

Full T&C’s apply 18+

#Ad• 18+• New Customers Only• Max One £10 Free Bet• Qualifying bets at Odds of 1/1 or greater• Terms and conditions apply

Full T&C’s apply 18+

#Ad• 18+• 50% back if horse finishes 2nd• Only applies to singles• Max refund of £25• Full terms and conditions apply

Full T&C’s apply 18+

#ad · 18+ · New customers only. Register with BETFRED50. Deposit £10+ via Debit Card and place first bet £10+ at Evens (2.0)+ on Sports within 7 days to get 3 x £10 in Sports Free Bets & 2 x £10 in Acca Free Bets within 10 hours of settlement. 7-day expiry. Eligibility & payment exclusions apply. Full T&Cs apply.

Full T&C’s apply 18+

#ad • 18+ • For new players who register on App• Card deposit of £10+ required. Stake £10+ on both your 1st & 2nd bets at min odds of 1.5 (1/2) within 3 days of registration & receive a £10 free bet for each qualifying bet resulted as a loss. Free bets valid on multiples with 3+ legs & min cumulative odds of 3.0 (2/1). Min odds of 1.4 (2/5) required per leg. Free bets must be used within 3 days of them being received.

Full T&C’s apply 18+

New cust only. Opt-in required. Deposit & place a bet within 7 days and settle a £10 minimum bet at odds of 4/5 (1.8) or greater to be credited with 3 x £10 Free Bets: 1 x £10 horse racing, 1 x £10 Free Bet Builder and 1 x £10 football. Free Bets cannot be used on e-sports and non-UK/IE horse racing. 7 day expiry. Stake not returned. T&Cs apply. 18+ GambleAware.org.

Full T&C’s apply 18+

#ad · 18+ · New customers only · Min £10 first bet · Min odds 1/2 (1.5) · Free bets valid 7 days · Free bet stake not returned · Casino bonus has 35x wagering · Max £25 casino bonus winnings · Neteller/Skrill deposits not eligible · One offer per household · QuinnBet rules apply · UK & Ireland only · Full T&Cs apply

Full T&C’s apply 18+

18+. Play Safe. From 00:01 on 18.10.2022. £30 bonus. New customers only. Minimum £10 stake on odds of 1/2 (1.5) or greater on sportsbook (excluding Virtual markets). Further terms apply. #ad

In this informative guide, you will explore the best betting sign-up offers and understand how they work. Continue reading below to learn how to claim the best betting welcome offers and what bonus terms and conditions to keep an eye out for.

Best Betting Sign Up Offers

Betting sign-up offers are exclusive promotions aimed at attracting new players who register with a bookmaker. These bonus offers typically come in different forms to help players maximize their initial bankroll. The most popular betting sign-up bonus offers consist of: 

  • Free Bets
  • Matched Deposit Bonuses
  • Risk-free Bets

Why Trust SportsBoom for Bonus Bets?

Trusting the SportsBoom platform is an excellent decision. They have casino experts who specialize in researching and providing accurate, up-to-date, and data-driven reviews of online betting promotions. Here are several reasons why you can rely on us for the best betting welcome offers:

  1. Expert Analysis: Our team of experienced bettors and casino expert’s reviews and compares the different betting websites' bonus offers to find the ones that are the best value.

  2. Transparency: We break down the key bonus terms and conditions so you know exactly what you’re signing up for and the risks that come with it.

  3. Regular Updates: Bonuses change frequently, so we always ensure that our content is fresh and relevant for players and readers.

  4. Trusted & Reputable Information: We make sure to provide our readers with trusted and factual information that is backed by reputable betting sites.

  5. User-Centric Approach: Our casino experts spend multiple hours focusing on finding the best betting bonus offers that provide real value rather than misleading promotions with difficult wagering requirements.

How do SportsBoom Experts Choose the Best Betting Websites' Bonus Offers?

The selection process at SportsBoom is very thorough. In order to find the best betting bonus, our experts follow strict criteria, ensuring that players only access top-tier bonuses and promotions. Here is a list of what we look for when choosing the top betting sites:

  1. Bonus Amount: By comparing the size and the amount of the welcome bonus relative to industry standards, we can select the best betting bonus that is 100% fair and will still give your bankroll a boost.

  2. Wagering Requirements: Lower play through requirements make a bonus more valuable. This is why we often opt for bonuses with lower rollover requirements.

  3. Eligibility & Restrictions: We analyse country restrictions, minimum deposit requirements, and eligible payment methods so that players are aware of these points.

  4. Market Availability: The SportsBoom team searches the range of sports and betting markets available for the bonus.

  5. Payout Terms: We ensure that winnings made from bonus bets are easy to withdraw without excessive limitations.

Top Sports For Bonus Bets

Bonus bets are a fantastic way to boost your bankroll, and some sports offer particularly great opportunities to maximize these rewards. Here are the top sports where bonus bets are most popular:

Football

As the world's most-watched sport, football provides endless betting opportunities. From match-winner bets to goal scorers and in-play markets. The best football betting sites offer bonus bets that can be used on major leagues like the Premier League, La Liga, and the Champions League.

Snooker

A precision sport with unpredictable outcomes, snooker betting thrives on markets like frame winners and century breaks. Bonus bets can add extra excitement to major tournaments such as the World Snooker Championship.

Darts

With fast-paced action and high-scoring finishes, darts betting is perfect for those looking to use their bonus bets on player markets, checkout totals, or outright tournament winners.

Horse Racing

One of the oldest betting sports, horse racing betting, offers fantastic value for bonus bets. Whether backing a favourite or an underdog, markets like each-way bets and accumulators make it an exciting choice.

Common Bookmaker Bonus Terms and Conditions

Before players are able to start claiming betting sign-up bonus offers, it’s crucial to understand the key terms that may come attached to them. Although these terms may be confusing or overwhelming at first, once you understand them, your betting journey will become a breeze. We have explained these terms below, so be sure to read them and remember them before you start betting online for real money at the top UK online betting platforms.

  1. Wagering Requirements

    Many betting sites with welcome bonus offers require you to wager the bonus amount multiple times before you can withdraw winnings.

    Example: A 5x wagering requirement on a £10 bonus means you must bet £50 before cashing out.
     

  2. Minimum Odds

    Free bonus bets and deposit match bonuses usually require betting on events with minimum odds.
    Example: If the minimum odds are 1.50, betting on lower odds won’t contribute to meeting the wagering requirement.
     

  3. Time Limits

    Some bonuses come with a time limited attachment and often expire within 7 to 30 days. Its important to always check the validity period before signing up and claiming the bonus offer.

  4. Restricted Markets

    There are certain promotions that will only apply to some sports or bet types, excluding niche markets or in-play betting.

How to Claim a Welcome Bonus – Step-by-Step Guide

Registering at one of the best online UK betting platforms is always an exciting process because there is so much to enjoy once you have completed the registration process. Claiming one of the best betting sign-up offers is a straightforward procedure and can be completed in a few simple steps. Read below and follow the step-by-step guide to successfully claim your betting sign-up offers:

    1. Choose a trustworthy UK online betting site: If you have multiple betting platforms you want to play at, first compare the promotions and then decide to select the bookmaker with the best sign-up offer.
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    Online Betting Site

  1. 2. Register an account: Click on the sign-up button, enter your personal details on the form provided, and create a secure login.

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    Account Registration Betting Site

  2. 3. Verify your account: Complete the Know Your Customer (KYC) process by uploading ID verification documents.

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    Account Verification for Betting Site

  3. 4. Make a deposit: Fund your account by choosing an eligible payment method.

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    Deposit At Betting Site

  4. 5. Enter a promo code (if required): Some betting sign-up offers require a specific code during registration, so make sure you enter it when signing up. You will find this bonus code attached to the bonus. 

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    Promo Code Betting Site

  5. 6. Place a qualifying bet: Follow the bookmaker’s requirements to activate the bonus.

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    Bonus Activation

  6. 7. Receive your bonus: The bonus funds or free bets will automatically be credited to your account.

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    Bonus at Betting Sites

  7. 8. Start betting on your favourite sports: Now that you are fully registered and have your own betting account, you can start placing bets.

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    Betting Sites

What are Bonus Bets?

Bonus bets are a type of promotional reward offered by online betting sites to attract new customers and retain existing ones. They allow players to place bets without using their own money, providing an opportunity to win real cash with minimal risk. They can also be used on selected events and markets. However, bonus bets often come with specific terms and conditions that must be met before any winnings can be withdrawn. Here is a breakdown of how bonus bets work:

When a bettor receives a bonus bet, they can use it to place a wager on a qualifying sports event. If the bet wins, the player typically receives only the profit from the wager, not the original stake. For example, if you place a £10 bonus bet at odds of 3.0 (2/1) and win, you would receive £20 in winnings but not the initial £10 bet amount.

FAQs

Are there any no-deposit betting bonuses available in the UK?

Yes, of course there are! Some UK bookmakers offer no deposit bonuses, but they are less common than deposit match offers.

Can I withdraw bonus bet winnings?

Yes, indeed, you can. But keep in mind that the wagering requirements must be met before attempting to withdraw any funds.

Do all UK betting sites require a promo code for bonuses?

No, while some promotions require a code, others are automatically applied upon registration.

How to turn bonus bets into cash?

To convert bonus bets into cash, players must meet the wagering requirements and place bets with strategic odds.

Can I do matched betting sign-up offers with PayPal?

Yes, you can! To do this, you must always check the terms and conditions, as some bookmakers exclude e-wallets like PayPal from promotions.

Do welcome offers still work after the first bet?

Yes. Most welcome offers apply to your first deposit or bet, but some promotions include multiple bonuses over time.

Do you have to accept a bonus from betting sites?

No, of course not. You can opt out of promotions if you prefer to bet without restrictions.

SportsBoom offers honest and impartial bookmaker reviews to help you make informed choices. While we may earn commissions through affiliate links, our content remains independent and free from promotional influence.