Biggest Sports Betting Bonuses & Signup Offers

If you’ve ever created a new online sportsbook account, you know that signup bonuses are an integral part of the process.

Whether receiving a no deposit bonus, a deposit match, a bonus bet, or some combination of them, the welcome offer plays a key role in the customer experience and how the bettor’s journey begins at that particular sportsbook.

It’s true that you also want a sportsbook with a strong reputation and a platform that features a huge range of markets and sports to choose from, favorable betting lines, promotions, and helpful customer service. But the first impression comes from the welcome offer.

Customers want to get the most for their time and money, and the best way to do that is to search for the largest sportsbook bonus possible.

Biggest Sports Betting Bonuses

There are plenty of bettors out there who are looking for a welcome offer that comes with the highest bonus amount possible, regardless of which kind it is. So before breaking things down by the type of welcome offer, let’s first take a look at the largest sports betting bonuses available:

Up to $1,000
In Bonus Bets
  • First Bet Safety Net up to $1,000, or Bet $5 Get $150 in Bonus Bets
  • 30% Extra on Same Game Parlay Profit
  • Gambling Problem? Call or text 1-800-GAMBLER 21+ 
  • Use Bonus Code: Click to claim promo
Up to $1,500
In Bonus Bets
BetMGM Sportsbook Review
  • Up to $1,500 in Bonus Bets if Your First Bet Doesn't Win*
  • *Bonus Bets Expire in 7 Days. One New Customer Offer Only. Add’l terms. 21+. Gambling Problem? Call 1-800-GAMBLER
  • Use Bonus Code: BONUSSEEKER1
$1,000 First Bet
On Caesars
Caesars Sportsbook Review
  • Up to $1,000 Back as a Bonus Bet if Your Bet Loses
  • Stream NFL Games In-App for Free
  • 21+ Gambling problem? Call 1-800-GAMBLER 
  • Use Promo Code: BONUSSEEKER1000
Bet $5
Get $150
If Your Bet Wins
FanDuel Sportsbook Review
  • Bet $5 Get $150 in Bonus Bets if Your Bet Wins
  • PLUS a Daily Boost or Bonus All Summer
  • Gambling Problem? Call 1-800-GAMBLER. 21+ 
  • To Claim: Click Play Now
Up to $100 
Bonus Bet
Hard Rock Bet Sportsbook Review
  • Up to $100 Back if Your First Bet Doesn't Win
  • Get Your Bets Boosted
  • To Claim: Click Play Now
$500 Bonus
2nd Chance Bet
BetRivers Sportsbook Review
  • Up To $500 in Bet Credits
  • ONLY 1x Play Through!
  • 21+. Gambling Problem? Call 1-800-GAMBLER 
  • Use Exclusive Affiliate Code: SEEKERSB

If you’re not located in a state with access to regulated online sportsbooks, there’s still hope. Luckily, FendOff Sports is available in 49 states (all except Washington) and allows the public to make sports betting picks in exchange for cash prizes!

Double your Fliff Coins and Fliff Cash at Fliff Social Sportsbook
Double your Fliff Coins and Fliff Cash at Fliff Social Sportsbook
Up to 600,000 Fliff Coins
100% Purchase Match
  • PLUS $100 Fliff Cash on Purchase
  • 1x Playthrough
  • Use Promo Code: BSEEKER

Biggest First Deposit Bonuses

If you polled bettors, there’s no doubt that many would say their favorite welcome offer is a first deposit bonus.

These bonuses are essentially free money for new customers who deposit and are the best way to get the most out of your initial investment into a sportsbook. They allow bettors to explore the site they just signed up for without using any of their own money while having a chance to win profits.

Below are the three biggest deposit match bonuses out there:

DraftKings Sportsbook’s welcome bonus is two-fold, but the deposit match takes center-stage. In addition to receiving a $50 bonus bet for depositing $50 or more, new customers qualify for a 20 percent deposit match bonus up to $1,000!

If you invest $100 into the site, that’s an extra $20. With a $500 deposit, you receive an extra $100. If you put $5,000 in your account, you can claim the full $1,000! And that’s on top of getting a $50 bonus bet.

Get Up to $500 Bonus At BetRivers Sportsbook!
Get Up to $500 Bonus At BetRivers Sportsbook!
$500 Bonus
2nd Chance Bet
BetRivers Sportsbook Review
  • Up To $500 in Bet Credits
  • ONLY 1x Play Through!
  • 21+. Gambling Problem? Call 1-800-GAMBLER 
  • Use Exclusive Affiliate Code: SEEKERSB

Bet365 is another sportsbook with a generous, although slightly different first deposit bonus. This welcome offer is capped at $500 but not to worry, because this site matches the investment 100 percent of the way!

This means that the bettor’s available funds automatically doubles, regardless of what they put into the account. A $100 deposit warrants an extra $100 in site funds while depositing $250 means getting an additional $250. If you invest at least $500, suddenly there’s $1,000 or more in your account right off the bat!

Get up to $500 Bonus at BetRivers Casino
Get up to $500 Bonus at BetRivers Casino
Up to $500 Back
In First 24 Hours
BetRivers Casino Review
  • 100% of Losses in First 24-Hours up to $500 Back
  • ONLY 1x Play Through on Bonus Money!
  • Use Affiliate Code: SEEKER

BetRivers is known for having one of the most player-friendly bonuses out there. Similar to some others, this sportsbook bonus is a 100 percent match and even though the maximum amount is $250, there’s another aspect of this that can’t go unnoticed.

There are wagering requirements attached to all bonuses, meaning that bettors need to wager a certain amount of money before any winnings can be withdrawn from the welcome offer. At BetRivers, the requirement is the lowest possible amount at 1x. This indicates that any winnings collected from the bonus is already withdrawable cash!

Biggest Betting Bonuses

Bonus bets are a welcome offer that is growing in popularity, and it’s easy to see why.

The way a bonus bet works is simple. If the bettor loses the initial wager placed after signing up, the site provides reimbursement up to a certain amount. Below are the highest bonuses out there.

FanDuel Sportsbook offers the largest bonus betting bonus there is at $1,000. This enables bettors to take a huge swing with their very first wager on the platform knowing that the worst-case scenario is being reimbursed in site credit with a loss.

BetMGM is a site that is continuing its growth in a large number of states and part of that is due to its great promotions and generous welcome bonus. New customers are awarded a huge $600 bonus bet which can be used on a massive range of betting markets (including props) that can rival any site out there. BetMGM also has a great catalog of promotions to take advantage of.

William Hill has been around for decades and it’s trusted in the sports betting industry on multiple continents. The welcome offer changes every so often but they’ve been known to offer a generous $500 bonus bet to new players.

PointsBet is listed in the early part of this piece due to its huge bonus but the platform is not on this list since most of their welcome offer is tailored toward their exclusive PointsBetting platform. The above sites all feature traditional bonus betting bonuses.

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