Best March Madness Betting Promos: Get $5,050 in Bonuses 2025

Best March Madness betting promotions

Here are the best March Madness betting bonuses in the country in time for the March Madness tournament.

March Madness betting promos explained

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

The best March Madness betting sites have the best sportsbook promos in the country just in time for the best tournament in sports.

Some of the top promos include:

FanDuel March Madness bonuses

Bet $5, Win $200 in Bonus Bets

New customers only. Deposit min. $5. Place first bet of $5+ and win $200 in Bonus Bets, if your bet wins. (within 72 hours).

Claim $200

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New FanDuel customers are eligible for a bet $5, win $200 in bonus bets March Madness welcome offer. Simply sign up with a new account and make a minimum $5 deposit. Then, place your first real-money wager of $5 or more on any FanDuel Sportsbook market and FanDuel will credit your account with $200 in bonus bets if your first bet wins.

How FanDuels' promo works:

Here are the key terms and conditions you need to know about this FanDuel bonus

• Make a $5 minimum deposit and bet $5 or more on any sports market.
• If your bet wins, you'll be credited $200 in bonus bets.
• Bonus bets cannot be withdrawn as cash and expire after seven days.

While this offer doesn't match the $1,000+ value of some competitors, you only have to risk $5 to qualify, and you don't even need a FanDuel promo code to get started. 

DraftKings March Madness bonuses

Bet $5, Get $150 + $1K Deposit Bonus

Terms and conditions apply.

Claim $150

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DraftKings has always been one the most popular sportsbooks in the United States, so it's no surprise when they roll out the red carpet for new customers ahead of the best tournament in sports, March Madness. You can activate a bet $5, get $150 in bonuses welcome offer. Just make a $5 minimum deposit and any wager of $5 or more. Whether your wager wins or loses, you'll receive $150 in bonuses instantly. Bonus bets will be sent as six (6) $25 bonuses.

It's a great deal for a great tournament that will have a ton of excitement over the four weeks. You don't even need a DraftKings promo code to qualify. 

How DraftKings' promo works:

• Make a new account with DraftKing sportsbook.
• Fund your new account with a minimum of $5 as your first deposit.
• Bet at least $5 on any available betting market.
• Win or lose, DraftKings will send you $150 in bonuses.
• You'll receive six (6) $25 bonus bets.
• Bonus bets can't be withdrawn as cash and expire in seven days.

bet365 March Madness bonuses

Bet $5, Get $150 in Bonus Bets Win or Lose*

*Deposit required. Bonus Bets wager excluded from returns. T&Cs, time limits and exclusions apply. Gambling problem? Call 1-800-GAMBLER

Claim Now

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bet365 is helping new users prepare for March Madness 2025 with a generous bet $5, get $150 in bonus bets welcome bonus using promo code SBRBONUS. bet365 has daily boosts and super boosts leading up to the games as well - a major bonus over other sportsbooks. 

How bet365's promo works:

• Create a new bet365 account. 
• Use the bet365 bonus code SBRBONUS when registering for the first time.
• Make a minimum $10 real money deposit.
• Many any bet of $5 or more with 30 days of opening your account.
• Qualifying bet must have odds of -500 or greater.

Gambling problem? Call 1-800-GAMBLER

New users signing up for the bet365 Tennessee bonus code and the bet365 Illinois bonus code today can snag their choice of two lucrative welcome bonus from bet365. Just use our bet365 bonus code SBR365 to qualify for one of these two great sign-up offers:

Caesars March Madness bonuses

Bet $1, Get Ten 100% Profit Boosts

New users only. Must use promo code. Min. $10 deposit. Max. bonus is ten 100% Profit Boost tokens. Profit Boost tokens expire in 14 days. Void where prohibited. Full terms.    

Claim Boosts

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Caesars has always been generous to their new users and their bonuses are no different for March Madness 2025. The Caesars promotion offers a bet $1, get 10 100% profit boosts promo. Just use the Caesars Sportsbook promo code SBRBONUSDYW when you sign up.

Here’s how to trigger the Caesars bonus:

• Open your new Caesars account and place your first qualifying wager of $1 or more on any market.
• Caesars will reward you with 10 100% profit boosts.
• The maximum bet for each token is $25.
• The maximum additional winnings for each token is $2,500
• Bonus bets expire after 14 days and have no cash value.

BetMGM March Madness bonuses

Up To $1,500 First Bet + $50 Bonus Bet

Bonus bets will expire in 7 days. One new customer offer only. Additional terms and conditions apply.

Claim $1,550

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BetMGM offers a March madness promotion, one of the best in the business. It's an offer of up to $1,500 back in bonus bets if your first bet loses. Use the BetMGM bonus code SBR1550 to activate this deal.

How BetMGM's promo works:

Here is how to take advantage of their welcome bonus:

• 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
• Bonus credits are divided into five equal bonus bets. So, a $1,500 first bet loss would be converted into five (5) $300 bonus bets for example.
• If first bet was less than $49, bonus bets will be issued as a single credit.
• You must use the bonus within 7 days.

Other March Madness bonuses

Fanatics Sportsbook

Up to $1,000 in Bonuses

Various welcome offer choices available in select states. Terms and conditions apply.

Bet Now

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Fanatics is best known for supplying official merchandise to every major North American sports league and has leveraged its brand recognition to launch a competitive sportsbook. In addition to enrolment in its FanCash customer loyalty program, new players can take advantage of up to $1,000 in bonus bets. Sign up for Fanatics in your state to learn more about the welcome offer. A Fanatics Sportsbook promo code is not needed at sign up.

BetRivers Sportsbook

Up to a $500 Second Chance Bet

Terms and conditions apply.

Claim $500

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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

Bet $20, Get $100 in Bonus Bets

Terms and conditions apply.

Bet Now

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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

Up to $100 Back in Bonus Bets*

Terms and conditions apply.

Claim $100

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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 $100 in bonus bets when you sign up and bet at least $5.

How March Madness betting promos work

March Madness is one of the biggest betting events of the year for most sportsbooks. Nearly $3 billion was bet on the 2024 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 for you to register someplace with the best promo because the greatest benefits are typically only available to new users. At the moment, bettors can use the Fanatics Sportbooks promo code for a $1,000 welcome offer. Additionally, the majority of sportsbooks also provide good March Madness promotions for current customers. You'll find that the top-rated NBA betting sites are often 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, but SBRBONUS is required for BetMGM and bet365, and SBRBONUSDYW for Caesars. 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. March Madness, which will surely see exciting finishes and buzzer-beaters, have novelty props that keep the excitement going for weeks. You can also 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 Insurance' deal, or something slightly different, it's now time to collect your March Madness 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. 

March Madness betting and promos summary

States where March Madness betting is legal

Almost three-dozen states have some form of online sports betting regulation, which means March Madness betting is pretty widespread in the United States right now. However, some states have special restrictions surrounding collegiate athletics, from banning player props, betting on in-state teams, or outright prohibiting wagers on college games.

Here's a list of all the states with legal March Madness betting, where you can collect potentially lucrative sign-up bonuses as a new customer:

• Arizona ✅
• Colorado ✅
• Connecticut ✅
• Illinois ✅
• Indiana ✅
• Iowa ✅
• Kansas ✅
• Louisiana ✅
• Maryland ✅
• Massachusetts ✅
• Michigan ✅
• Mississippi ✅
• New Jersey ✅
• New York ✅
• Nevada ✅
• North Carolina ✅
• Ohio ✅
• Oregon ✅
• Pennsylvania ✅
• Rhode Island ✅
• Tennessee ✅
• Virginia ✅
• West Virginia ✅
• Wyoming ✅

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. The 2024-25 season has been a wild one with preseason-favorite UConn now a longshot to win the tournament. 

Who will ultimately win the national title this season? Here are the latest 2025 NCAA Tournament odds (last updated March 13, 2025):  

🏀 2025 National Championship odds

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, highlighting the latest sports betting news, up-to-date information on the best bonuses, and more.

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.