Top Sportsbook Bonuses & Promo Codes Right Now in the U.S. – May 2025

Ok, we all want to boost our bankroll with a good and valid sportsbook bonus? It does not matter if you are betting on the NBA Playoffs today, NHL Finals, or daily MLB matchups, grabbing a top-tier welcome offer is the smartest way to start. That is why we come up with the best sportsbook promos you can claim today. No need to go for Reddit feeds, use our verified information. From bonus bets and second-chance offers to exclusive promo codes, the best U.S. sportsbooks like bet365. Betrivers, Hardrock Bet are competing to get your attention — and they’re offering big-time value.

We’ve rounded up the top welcome promos available right now, broken down what each one includes, and how to get the most out of them. Scroll through our quick comparison table or read on for detailed breakdowns of the five best sportsbook offers in May 2025.

Best U.S. Online Sportsbook Promos – May 2025

Best Betting Offers and Sportsbook Promo Codes 2025

1. bet365 – Bet $5, Get $150 or Up to $1,000 Bonus

Promo Code: USB365
Available In: CO, IA, KY, LA, NJ, OH, VA

bet365’s welcome promo gives new users two choices: either bet $5 and get $150 in bonus bets, or go bigger and grab up to $1,000 in bonus bet insurance on your first wager. The $5 deal is ideal for beginners, while the $1,000 coverage suits high rollers. Just use the code USB365 during sign-up and make a $10+ deposit. Wagering requirement is only 1x for bonus use, which is refreshingly low compared to other books. Great for users who want flexibility from a globally trusted name.

Best use tip: Go with the $5 to $150 promo if you’re testing the waters — it’s a low-risk way to get 6x your stake in bonus bets.

2. BetRivers – Up to $500 Second-Chance Bet

Promo Code: USBTRV
Available In: CO, IL, IN, IA, LA, MD, MI, NJ, NY, OH, PA, VA

BetRivers keeps things simple with a second-chance bet worth up to $500. Just sign up using the code USBTRV, deposit, and place your first real-money wager. If it loses, they’ll refund the amount (up to $500) as bonus credits. The site features tons of promos, good live betting, and fast withdrawals via PayPal and Play+.

Best use tip: Use this on a plus-money underdog — if it hits, you’re ahead; if not, you get your bet refunded in bonus bucks.

3. Hard Rock Bet – Up to $100 Back in Bonus Bets

Promo Code: None needed
Available In: AZ, IN, NJ, OH, TN, VA

Hard Rock Bet is an underrated gem in the sports betting world. New users can get up to $100 back in bonus bets if their first wager loses. While it’s not the biggest offer, it comes with low rollover requirements and a user-friendly app. They’ve improved their interface and now offer same-game parlays, live betting, and casino integration in some states.

Best use tip: Try a 4-leg parlay with decent odds for your first bet — gives you a big win potential with a no-risk fallback.

4. FanDuel – Bet $5, Win $250 in Bonus Bets

Promo Code: None needed
Available In: All legal FanDuel states incl. NY, NJ, PA, OH, IL, MI, CO, and more

FanDuel’s welcome bonus is a fan favorite for a reason. Bet just $5, and you’ll receive $250 in bonus bets—win or lose. You don’t need a promo code, and you’ll get credited shortly after your qualifying bet is placed. The bonus bets are split into smaller denominations so you can test different sports, markets, or strategies.

Best use tip: Spread your $250 across multiple sports or use it to test your luck on live betting.

5. Fanatics Sportsbook – Bet $50, Get $200 in Bonus Bets

Promo Code: None – click to claim
Available In: CO, MD, MA, MI, OH, PA, TN, VA, WV

Fanatics Sportsbook is newer to the U.S. market, but they’re coming in hot with a Bet $50, Get $200 promo. The bonus is split into four $50 credits, letting you play around a bit. No promo code is required, and the site’s FanCash rewards program is a nice perk — you earn credit toward bonus bets or official sports gear on every bet.

Best use tip: Bet your $50 on a market you feel confident about (ex: an NBA spread), then use the four $50 bonus bets for longshots or parlays.

TOP Betting Deals & Free Bets Listed

With so many legal sportsbooks in the U.S. now, the welcome bonus you choose matters more than ever. From low-risk promos like bet365’s $5 deal, to big protection with second-chance offers like Caesars or BetRivers, there’s something for every betting style.

Before you jump in, always:

• Check state availability
• Use the right promo code
• Read terms & wagering requirements
• Bet responsibly 🧠

For more promo codes, updated bonuses, and how to get the most value when betting online, always use Horse.Bet, which is not only about the best horse betting deals.