Betting Sites Bonus: 10 Best Bonus Betting Sites

We are here to tell you all you need to know about betting sites’ bonus offers. Where to get them, how to use them and what to look out for in the small print - it’s all here.

Below you will find five handpicked deals that should give you a good example of what you should be looking for in any betting site’s bonus. After all, these are promos from trusted social sportsbooks that you can legally use in 40+ states and enjoy plenty of sports betting without it costing you a dime.

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Explore the Best Bonus Betting Sites in 2025

Our Top Picks
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  • Great sports coverage
  • Easy to make your picks
  • No purchase necessary
SportsMillions Bonus
Get up to 33 Free SC + 7K Gold Coins
Virginia
Players from Virginia accepted
Go to SportsMillions
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Payment Methods
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Apps
  • Place social bets
  • All US Major Leagues
  • Play for fun or in promotional mode
Legendz Casino Bonus
Sign up for 3 SC + 500 Gold Coins FREE and 50% extra on your First Purchase!
Virginia
Players from Virginia accepted
Go to Legendz Casino
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Payment Methods
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Withdrawal
1 Day
  • Social Sportsbook with an App
  • Play for fun or real cash prizes
  • Exclusive promo code: FLIFFISLIFE
Fliff Bonus
Spend $50, Get up to $100 in Fliff Coins + Get up to $5 Per Day
Virginia
Players from Virginia accepted
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  • Realistic sportsbook-style gameplay
  • +40 sports with NBA, NHL, NFL, MLB & more
  • Excellent welcome offer
Sportzino Bonus
Get up to 10 SC FREE + 220,000 Gold Coins
Virginia
Players from Virginia accepted
Go to Sportzino
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Payment Methods
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  • Real cash prizes
  • Daily competitions and seasonal leagues
  • Free Bucks daily
Kickr Bonus
4 Free Bucks + 150,000 Bits
Virginia
Players from Virginia accepted
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  • Excellent choice of sports.
  • Pre-match and live picks.
  • Strong community vibe.
Thrillzz Bonus
100% match up to $25 in Coins + $3 Free Coins
Virginia
Players from Virginia accepted
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Payment Methods
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Applepay
American Express
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Apps
  • Up to 7 sports
  • Supports singles and parlays
  • Onyx Coins and Onyx Cash model
Onyx Odds Bonus
Spend $10 get 25 Onyx Cash
Virginia
Players from Virginia accepted
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Payment Methods
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Helping you find quality betting sites with bonus offers

Pretty much all betting sites will have bonus offers. These are usually deals that give you promo credit that you can use to fund your sports bets, although some deals may boost your odds or even refund your losses.

While most people look for those deals that let them enjoy free online betting for real money, the fact is that most offers will usually require you to make a qualifying deposit or bet before you get anything in return. Plus you should be careful to look out for any of those wagering requirements.

This is why more and more people now choose to bet at social sportsbooks instead. While these sites don’t feature any real money gambling, they have to let you enter their sweepstakes for free. This means that you should always be able to get some free credit via a range of deals for new and existing customers. Here are the key things to understand about social sportsbooks:

🇺🇸 Legal in Most States

Because social sportsbooks don’t feature real money gambling, they are allowed to operate in far more states than regular online sportsbooks.

💰 Bet with Virtual Currencies

You don’t bet with your own cash at social sportsbooks, but will bet with virtual currencies that are usually called Gold Coins and Sweepstakes Coins.

🚫 No Real Money Winnings

Don’t go thinking that social sportsbooks are betting apps that give free money, as the closest thing you get to this is to redeem your Sweepstakes Coins winnings for real prizes. Just note that Sweepstakes Coins can only be given away for free and that you must meet the relevant playthrough and eligibility criteria before you can redeem your SC winnings.

❌ No Deposits Possible

You can’t make deposits at social sportsbooks like you can at regular online sportsbooks. Instead, you get the option to purchase a Gold Coins package but you can also leverage free bonus offers so that you can always place social wagers for free.

SportsMillions
4.7/5
SportsMillions Review
Get up to 33 Free SC + 7K Gold Coins
Play now
Legendz Casino
4.7/5
Legendz Casino Review
Sign up for 3 SC + 500 Gold Coins FREE and 50% extra on your First Purchase!
Play now
Fliff
4.6/5
Fliff Review
Spend $50, Get up to $100 in Fliff Coins
Play now

Five top betting sites with sign up bonus offers

You’d have to look long and hard to find any online sportsbook that didn’t have any kind of welcome offer for new customers. After all, each of these brands will have to do something special to get people to sign up to their sites rather than wander off to join any rival betting sites.

We think that the following five sportsbooks have some of the best welcome offers that you can use for superior sports betting. Here’s a closer look at these brands and their deals:

Social betting siteWelcome bonus
FliffSpend $50 on Fliff Coin bundles, get up to $100–use code BILFLIFF
Sportzino7 Sweepstakes Coins and 170,000 Gold Coins
LegendzThree Sweepstakes Coins, 500 Gold Coins and 10% extra on your first Gold Coins purchase
Rebet100 Rebet Coins and 1 Rebet Cash
Thrillzz3000 Thrillzz Coins and 3 Thrillzz Sweeps

Fliff - Get this exclusive promo code

fliff reviews
Fliff: Pros & Cons
  • Great welcome bonus
  • Dedicated mobile app
  • Play for fun or cash prizes
  • Great social sportsbook experience
  • Limited payment options
Visit Fliff

We love Fliff so much that we have created the exclusive BILFLIFF code you can use when you sign up. It will unlock a deal that will give you $100 in Fliff Coins just for spending $50 on one of the Fliff Coins packages. You can also claim 1,000 Fliff Coins and 1 Fliff Cash for free.

Fliff also loves to put on lots of deals for existing customers. After all, you can get free coins just for staying logged into your account for two or more hours, and then there are lots of enhanced odds offers for the biggest sporting events. Plus with some fun XP leaderboard challenges, it’s little wonder that so many sports fans are signing up to Fliff.

Sportzino - Endless betting promos here

Sportzino main
Sportzino: Pros & Cons
  • Top welcome promotion
  • All-in-one social sportsbook and casino
  • Realistic sports betting experience
  • No table games
Visit Sportzino

This is a social sportsbook with more than its fair share of special offers. Things start well when you sign up and get 7 Sweepstakes Coins and 170,000 Gold Coins to get you started. After this, you just have to log into your account every 24 hours to get a further 20,000 Gold Coins and one free Sweepstakes Coin to bet with.

Plus we loved how creative Sportzino is with its other deals for existing customers. You can find referral deals here, purchase promos and then there is a VIP program featuring five leagues that you have to rise through and get progressively better bonuses and perks in return.

Legendz - A big welcome offer and much more

Legendz social casino
Legendz: Pros & Cons
  • Impressive welcome bonus
  • Intuitive desktop and mobile sites
  • No purchase necessary
  • Legal in 46 US states
  • High prize redemption limits
Visit Legendz Casino

You simply cannot fault the welcome offer that Legendz has just unleashed. It will give you three Sweepstakes Coins and 500 Gold Coins just for registering your first account here. Plus you also will get the option to receive 10% extra on your first Gold Coins purchase.

Legendz has also had plenty of fun in coming up with a variety of bonuses for existing customers. Alongside standard deals like daily login bonuses and social media giveaways, you will find plenty of leaderboard challenges where you can get rewarded for getting a little more competitive with your social bets. Plus with a top VIP program, you should feel well taken care of here.

Rebet - Quality deals for new and existing customers

rebet-app-pro-contra-us
Rebet: Pros & Cons
  • Unique social betting features
  • Daily login bonus
  • Community-building app
  • Win real rewards
  • No real customer reviews yet

This is a social sportsbook that has attracted plenty of attention for its peer-to-peer betting feature, but Rebet won’t let you down with its bonuses either. After all, you can sign up here and get a first purchase deal that could see you being given up to 100 in Rebet Cash.

Once you have made good use of that, then you can look forward to picking a daily login bonus that gives you 100 Rebet Coins and one Rebet Cash. Remember that Rebet Coins are used to bet for fun while Rebet Cash can be redeemed for cash prizes after meeting the 1x playthrough requirement.

Thrillzz - Enjoy the full range of betting promos

Thrillzz Casino
Thrillzz Casino
  • Excellent variety of sports and markets.
  • Free-to-play sports picks.
  • Prize Tickets redeemable for real cash.
  • Loyalty points and rewards.
  • Apps for Android and iOS devices.
  • No desktop version available.
  • Some state restrictions.
Visit Thrillzz

This social sportsbook was only launched in 2024 but it has already managed to put on the full range of betting bonuses. For example, you can sign up to Thrillzz for the first time and get a welcome bonus of 3,000 Thrillzz Coins and 3 Thrillzz Sweeps.

Conclusion - Get ready to use your chosen betting site’s bonus

If you have made it this far, you will understand that there are so many betting sites’ bonus offers out there. The best thing is that many of these deals come from free betting sites which means that you can bet on endless sporting events and it shouldn’t cost you a single cent.

It’s reasons like this will suggest why so many people are now signing up to social sportsbooks rather than traditional online sportsbooks. But whichever kind of way you prefer to bet, be sure to make the most of all of the bonus betting sites featured here.

Our favorite bonuses for social betting 2025

Get up to 33 Free SC + 7K Gold Coins
Virginia
Players from Virginia accepted
Go to SportsMillions
Get Bonus
Sign up for 3 SC + 500 Gold Coins FREE and 50% extra on your First Purchase!
Virginia
Players from Virginia accepted
Go to Legendz Casino
Get Bonus
Spend $50, Get up to $100 in Fliff Coins + Get up to $5 Per Day
Virginia
Players from Virginia accepted
Copy
Get Bonus
Get up to 10 SC FREE + 220,000 Gold Coins
Virginia
Players from Virginia accepted
Requirements (WR): 1x Bonus
Go to Sportzino
Get Bonus
4 Free Bucks + 150,000 Bits
Virginia
Players from Virginia accepted
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Get Bonus

Betting sites bonus FAQ

🏅 Which betting site has the best promotions?

It depends on what you are looking for but Sportzino has a great range of deals while we also love the deal that you can get at Fliff by using our exclusive BILFLIFF code. Remember that these promos are all from free betting apps so that you can enjoy some cost-effective sports betting entertainment.

🎁 Which betting sites give bonuses?

It’s easy to find betting sites with welcome bonus offers and all of the social sportsbooks in our guide will have lots of deals for existing customers too. Perfect for enjoying even more quality sports betting.

💰 Which betting app gives the best bonus offers?

We think that the Fliff, Sportzino, Rebet, Thrillzz and Legendz apps all have some phenomenal bonus offers. After all, you can get each of these deals for free and potentially redeem your Sweepstakes Coins winnings for cash prizes.

💳 Which betting sites give free credit?

All of the best bonus betting sites like the brands listed in this guide will give you free credit that you can use for your sports bets. This is because they are all social sportsbooks who have to let you enter their sweepstakes with no purchase necessary.

🤑 How do I use sports betting sites' bonuses?

It depends on which kind of bonus you are using. Most of the social sportsbooks’ deals listed here simply let you use their free credit as virtual stakes for betting on the odds. Remember that if you win back enough Sweepstakes Coins, you might be able to redeem them for cash prizes.

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