Best March Madness Betting Promos 2026: Get $5K+ in Bonuses

What is the best March Madness promo?

In my opinion, Fanatics Sportsbook has the best overall March Madness promo. Whether you want to use it for college basketball games leading into March Madness or for a specific period of the tournament, the flexibility Fanatics offers is hard to beat.

While you get to choose your welcome bonus, I recommend opting for the 'Up to $1,000 in FanCash Bet Matches' offer, as this will give you the best coverage for March Matchups (10 days x up to $100 Bet Matches).

Another perk is that you can earn FanCash through Fanatics Sportsbook, which can then be put towards gear from your favorite college basketball team at the Fanatics Shop.

-Darren Kritzer, Senior Betting Editor

Compare the best March Madness promos

Here are the best betting bonuses in the country available for the big tournament.

1. Fanatics Sportsbook – Best overall promo
2. BetMGM Sportsbook – Best first bet offer
3. bet365 Sportsbook – Best for odds boosts
4. FanDuel Sportsbook – Best promos for existing users
5. DraftKings Sportsbook – Best college sports prop betting
6. Caesars Sportsbook – Best for Rewards
7. BetRivers Sportsbook – Best for Early Cash Out
8. theScore Bet – Newest betting site

March Madness betting promos ranked and reviewed

Editor's Note: Bonuses are for U.S. residents only. Bonuses are current offers and are subject to change.

Here's a closer look at the best sportsbook promos in the country for the biggest college tournament in sports. While you're at it, take a look at the best free bracket contests being offered this year.

1. Fanatics Sportsbook - Most flexible March Madness promo

Fanatics Sportsbook takes the top spot for March Madness promos with its great offer: Up to $1,000 in Bet Matching FanCash. This offer is available in every state in which the app is available except New York and Ohio. In New York, bettors can get 10 x 100% Profit Boost Tokens, while Ohio's offer is Bet $100, Get $400 in Bonus Bets.

This is a great resource considering the tournament runs for about three weeks, meaning you can make this promo go further than what you'll find at most other sportsbooks.

How Fanatics' promo works:

The 10 x $100 FanCash Bet Match bonus, which allows you to bet $1 or more per day and earn FanCash equal to your stake, up to $100. Repeat this process for 10 days, and you can earn up to $1000 in FanCash –– if you're willing to wager $100 daily.

Any FanCash earned from this bonus expires after seven days.

Alternate offers:

Fanatics Sportsbook also offers a secondary welcome offer for those who aren't enticed by the primary promo. The secondary offer varies from state-to-state:

Sign up for Fanatics in your state to learn more about the available welcome offers. Note you can only choose one welcome offer when signing up. No matter which you pick, a Fanatics Sportsbook promo code is not needed at sign-up.

2. BetMGM Sportsbook - Best first bet offer

BetMGM offers one of the highest bonus totals for college basketball bettors: up to $1,500 back in bonus bets if your first bet loses. Use the BetMGM bonus code SBRMGM to activate this deal.

If you live in Michigan, New Jersey, Pennsylvania, or West Virginia, you'll have access to a bet $10, get $150 in Bonus Bets (if your bet wins) promo instead.

How BetMGM's promo works:

• Minimum deposit of $10 is required for this bonus to trigger.
• Your first bet must lose to earn the welcome bonus funds.
• The $1,500 will be credited within 24 hours of your first bet settling.
• You must use the bonus within 7 days.

In addition to its new player offer, BetMGM has a strong college basketball pedigree, with a great stable of live betting options, best-in-class statistics, and the renowned MGM Rewards loyalty program.

3. bet365 - Best for odds boosts

bet365 is helping new users prepare for March Matchups with a generous bet $10 and get $365 in bonus bets, win or lose welcome bonus. You won't need a bet365 bonus code of any kind; just use our exclusive links.

bet365's big strength is its daily boosts and super boosts leading up to the games. You'll frequently find specific markets with boosted odds, which can be a major bonus over other sportsbooks when you're looking for the best price. 

How bet365's promo works:

• Create a new bet365 account by clicking our links to get started.
• Make a minimum $10 real money deposit.
• Make any bet of $10 or more within 30 days of opening your account.
• Qualifying bet must have odds of -500 or greater.
• Win or lose, receive $365 in bonus bets

Gambling problem? Call 1-800-GAMBLER

4. DraftKings - Best for prop bets

DraftKings has always been one of the most popular sportsbooks in the United States, so it's no surprise that they roll out the red carpet for new customers ahead of the best tournament in sports.

New users can activate a bet $5 or more and get $200 in bonus bets instantly welcome offer. Just make a $5 minimum deposit, and place a wager of $5 or more (min. -500 odds). Win or lose, you'll receive your $200 in Bonus Bets, sent as Eight (8) x $25 Bonus Bets.

As for existing players, you'll want to check out DraftKings' prop bets. Not only does it have arguably the best prop selection in the industry, but its Early Exit policy can help get your a refund if a player leaves the game early due to injury.

You don't need a DraftKings promo code to qualify. 

How DraftKings' promo works:

• Make a new account with DraftKings sportsbook.
• Fund your new account with a minimum of $5 as your first deposit.
• Bet at least $5 on any available betting market (min -500 odds).
• Win or lose, DraftKings will send you $200 in Bonus Bets, delivered as Eight (8) x $25 Bonus Bets.
• Bonus bets can't be withdrawn as cash and expire in seven days.

5. FanDuel - Best for daily promos

New FanDuel customers are eligible for a generous welcome offer: Get $350 in Bonus Bets, Win or Lose. Make an initial deposit of $5, then bet $5 per day for seven days and get $350 in Bonus Bets.

While FanDuel's welcome bonus is good, daily promos are where this sportsbook shines. You'll find a rotating selection of daily promos throughout the tournament, including SGP profit boosts, No Sweat Bets, Reward Stacks, and more.

How FanDuels' promo works:

Here are the key terms and conditions you need to know about the Get $350 in Bonus Bets, Win or Lose FanDuel promo:

• Make a $5 minimum deposit after creating your account.
• Bet $5 or more on any market, with any odds, and receive $50 in Bonus Bets.
• Repeat the process for seven straight days to earn a maximum of $350 in Bonus Bets.
• Bonus Bets expire seven days after receipt.

It's a big bonus offer, and you don't even need a FanDuel promo code to get started.

Other March Madness bonuses

Caesars Sportsbook

The Caesars Sportsbook promotion offers a Bet $1, Double Your Winnings On Next 10 Wagers promo. Just use the Caesars Sportsbook promo code SBRBONUSDYW when you sign up. Caesars will reward you with Ten (10) 100% Profit Boost Tokens.

BetRivers Sportsbook

The BetRivers bonus code grants new users up to $500 in bonus bets depending on the state they sign up in. No matter what state you are in, you should use the bonus code SBRBONUS to snag the promo and start wagering at one of the best sportsbooks in North America.

Borgata Sportsbook

The Borgata promo code gives new users the opportunity to bet $20 and receive $100 in bonus bets. All you need to do at sign up is enter promo code SBRBORGATA.  Acquiring the bonus is simple, however, you must be in either New Jersey or Pennsylvania to do so.

Hard Rock Bet

Hard Rock Bet is another solid option, with a simplistic layout tailored to more casual sports bettors looking to ease into the hobby. Fittingly, it also has a straightforward welcome bonus. Use our Hard Rock Bet promo code to get an excellent welcome bonus: Bet $5, Get $150 in Bonus Bets If You Win.

How to claim March Madness betting promos

March Madness is one of the biggest betting events of the year for most sportsbooks. Over $3 billion was bet on the 2026 NCAA Tournament.

It's very popular with the brackets that users fill out as well, but sportsbooks have plenty of odds and boosts to choose from, making it super popular over the duration of the tournament.

Generally, here's how March Madness betting promos work:

1. Choose a sportsbook

Pick a sportsbook from our toplist above the page, or find another good option that is legal and licensed in your location/state. It may be advantageous to register with the provider offering the best promotion, as the greatest benefits are typically available only to new users.

Most sportsbooks also offer strong March Madness promotions for current customers. You'll find that the top-rated NBA betting sites often coincide with the best promotions, too.

2. Make a deposit

Depositing into your sportsbook account for the first time is necessary to claim the bonus. Almost every promotion will require you to make a minimum deposit and a small real money wager of some kind. Most sportsbooks have a minimum deposit of $5 or $10 (depending on the banking method). Finding a deposit minimum lower than $5 is rare these days.

3. Use a promo code

Not every March Madness betting bonus offer requires a promo code, but some do. Refer to our table of verified and exclusive promo codes above. If needed, make sure you input the code when you register or deposit to claim the best possible bonus. 

4. Place your bet

The March Madness tournament has almost endless betting options. You can simply pick a team to win on the moneyline or point spread or go with something more exotic like a game or player prop bet.

You'll also find novelty props that keep the excitement going for weeks. Plus, you can bet on the futures market, so pick the winner of the tournament instead of a moneyline.

5. Collect the bonus

Whether you opted for a 'Bet & Get' offer, a 'First-Bet Offer' deal, or something slightly different, it's now time to collect your bonus. Ensure you've met all the terms and conditions first. Most bonuses will appear in your account instantly if you meet the criteria required.

6. Cash out

Hopefully, your March Madness bet was a winner, and you now have some profit to withdraw. Or you earned some bonus bets that will give you another chance to make a winning bet. Maybe even both!

Head to your sportsbooks' Banking or Cashier section, and follow the steps to ensure you get the withdrawal options on your side. 

Now that you have a handle on how these promos work, check out our guide for the top March Madness sportsbook promos and odds boosts, which compiles the biggest offers on the market and how you can claim them.

March Madness betting and promos summary

March Madness promotions and bonuses by state

Looking for the best March Madness promos in your state? Traveling during the NCAA Tournament and concerned about how you're going to place your first round wagers? Well, we have you covered.

The table below features links to all states that allow March Madness betting in some form or another. You'll also find links to a few states that don't currently offer legal sports betting, but could do so in the future.

Alternative March Madness promos

If you live in a state where traditional sportsbooks are unavailable, there are still plenty of ways for you to obtain March Madness betting promos. Below, I dive into some of the best prediction market promos available just in time for the Big Dance.

Kalshi

Kalshi is the top predictions market app right now and offers plenty of March Madness markets throughout the tournament. Users can trade on individual games, teams to make the Sweet 16, and who will cut down the nets and be crowned national champion. Best of all, Kalshi offers multiple bonuses, including a $10 sign up bonus with Kalshi promo code SBR, and a $25 referral bonus with Kalshi referral code SBR.

Polymarket

Polymarket offers $20 in bonuses when you use Polymarket promo code SBR. While the platform currently has a waitlist, using this invite code will allow you to skip it and start trading on the NCAA Tournament right away. And there's no shortage of markets to choose from, with trades available for every game and every team to advance to certain stages of the tournament.

OG.com

In 2026, OG.com offered a special promo: $150 in bonuses to new users who traded on every round of the tournament. The current OG.com promo code will net you $100 in bonuses after trading $10 or more. Hopefully, this emerging prediction market comes up with another college basketball-themed welcome offer for the 2027 tournament. 

FanDuel Predicts

Though sports-related prediction markets are limited to just 18 states at FanDuel Predicts, there's still plenty to love about this platform from one of the industry giants. Users in states without FanDuel Sportsbook can make trades related to specific outcomes all tournament long. The only downside is that there isn't a welcome bonus at this time.

DraftKings Predictions

If you're already a fan of DraftKings Sportsbook, then chances are, you're going to love DraftKings Predictions. The platform offers new users a 100% match on their first trade up to $25. DraftKings Predictions allows users in 38 states to trade on the NCAA Tournament safely, as the platform is fully regulated by the CFTC.

March Madness betting odds

Whether it's the first day of the season or Selection Sunday, college basketball bettors are always looking for the best college basketball odds, March Madness odds, and Final Four odds. 

🏀 2027 National Championship odds

The next NCAA Division I men's basketball tournament will take place from Mar. 16 - Apr. 5, 2027, with the championship game held at Ford Field in Detroit, Michigan.

Despite losing a heartbreaker to UConn in this year's Elite Eight, Duke is back as an opening favorite ahead of next year's tournament. 

Here are the latest 2027 NCAA Tournament odds.

Odds updated weekly. Check your preferred sportsbook for the latest numbers.

Why trust SBR's March Madness betting reviews?

Now that legal sports betting is available in over 30 states, everyone thinks they're an expert when it comes to the latest trends, promos, and more. Here at SBR, our goal is to help you sort through the noise and make the decisions that are best for you. Our staff is one of the most experienced in the industry and has been providing expert knowledge of sportsbooks for more than two decades.

We are in regular contact with all major sportsbooks. Because of this, we can confirm that we have the most accurate information regarding bonuses, promotions, and all other pertinent information that will help you choose the best sportsbook for you.

You can rest assured that if you read something on SBR, it's been verified, fact-checked, and scrutinized via our stringent Editorial Policy.