Get $3,150 in March Madness Betting Promos & Bonuses 2025

March Madness is one of the most exciting sporting events in the world, and online sportsbooks offer special betting bonuses worthy of the vaunted NCAA men’s tournament.

With promos like bonus bets, parlay insurance, and other types of insurance unique to the tourney, these March Madness betting sites will have you on the edge of your seat as you track each college basketball game closely alongside your bracket.

The best March Madness sports betting bonuses aren’t necessarily the ones offering the highest potential payouts. Look for promos that take your immersion into college hoops to a whole new level. The best sportsbook promos for March Madness sometimes offer new promotions for each round, so we’ll keep this guide updated as the tournament rolls along.

Keep reading for more details on the best March Madness bonus offers in 2025.

Bonus offer availability varies by location and changes frequently. Please consult each sportsbook directly to confirm the availability of the bonus offers featured on this page.

Best March Madness Betting Promos

Here’s a quick rundown of the best promos for the men’s basketball tournament, with links to help you get started:

Let’s get into the details and some of the terms for these March Madness bonuses. See more March Madness betting apps for the 2025 NCAA Tournament. Pro tip: the bet365 bonus code is also a valuable promo for new users looking to bet on the tournament.

March Madness Betting Promos Explained

Betting promos for March Madness have specific terms and conditions (T&Cs), and we always recommend you read the fine print before placing a bet. The availability of these bonuses differs based on where you’re betting from, but we’ll let you know where sports bettors can find each of these NCAAB sportsbook promos.

DraftKings March Madness Promo: Bet $5, Get $150 in Bonus Bets Instantly + $50 Deposit Bonus

Eligible States: Arizona, Colorado, Connecticut, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, Tennessee, Virginia, West Virginia, Wyoming

Here’s a promo with some serious value. DraftKings Sportsbook is making betting on March Madness an absolute no-brainer with a Bet $5, Get $150 offer. Trust us, it’s really as simple as it sounds.

DRAFTKINGS
SPORTSBOOK

Bet $5 & Get $150 in Bonus Bets + $50 Deposit Bonus

LOCK IN PROMO

SIGNUP PROMO

BET $5
GET $200

GET PROMO

How it works:

• Follow the links in this section to reach the DraftKings Sportsbook signup page
• Sign up for a DraftKings Sportsbook account
• Deposit minimum of $5
• Place a $5 bet on any March Madness matchup and get $150 in bonus bets if your bet wins

FanDuel March Madness Promo: Bet $5, Get $200 in Bonus Bets If You Win

Eligible States: Arizona, Colorado, Connecticut, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, Wyoming

As one of the biggest sportsbooks in the business, FanDuel Sportsbook does not play around when it comes to their March Madness promos. They have a March Madness promo that is as clear-cut and lucrative as you can find.

FANDUEL SPORTSBOOK

Offer

T&Cs

Bet $5 & Get $200 in Bonus Bets if Your Bet Wins

Must be 21+. T&C Apply. Gambling Problem? Call 1-800-GAMBLER.

LOCK IN PROMO

SIGNUP PROMO

BET $5
GET $200

BET NOW

How it works:

• Follow the links in this section to set up your new account
• Complete signup form and make a deposit
• Make a $5 minimum deposit
• Place a $5 first wager on any March Madness game and get $200 in bonus bets if your first bet wins

BetMGM College Basketball Bonus Code: $1,500 First Bet Offer

Eligible States: Arizona, Colorado, Indiana, Iowa, Illinois, Kansas, Kentucky, Louisiana, Maryland, Michigan, North Carolina, New Jersey, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, Washington DC, Wyoming

The BetMGM sportsbook is certainly not be outdone by its competition when it comes to bringing an excellent college basketball promo to the table. The $1,500 first bet offer is as big and bold as it sounds.

BETMGM SPORTSBOOK

Offer

T&Cs

Get Up To $1,500 Paid Back in Bonus Bets

21+ only. Please Gamble Responsibly. Gambling problem? Call 1-800-GAMBLER (US); 1-800-327-5050 (MA); 1-800-NEXT-STEP (AZ); 1-800-BETS-OFF (IA); 1-800-981-0023 (PR), 877-718-5543 or visit morethanagame.nc.gov (NC). See BetMGM.com for T&C. US promotional offers not available in MS, NY, NV, ON, or PR.

LOCK IN PROMO

CODE: SBD1500

CODE: SBD1500

SIGNUP BONUS

GET $1,500
BACK

BET NOW

How it works:

• Follow the links in this section to set up your account
• After registering, make a first-time deposit
• If your first bet up to $1,500 loses, BetMGM will pay you back in bonus bets

Bet365 March Madness Promo: Bet $5, Get $150 in Bonus Bets Guaranteed

Eligible States: Arizona, Colorado, Indiana, Iowa, Kentucky, Louisiana, New Jersey, North Carolina, Ohio, Virginia

While they might not be available in quite as many states as other sports betting sites and apps on this list, the bet365 sportsbook is still bringing a great welcome offer to the table for March Madness.

How it works:

• Use the links in this section to reach the bet365 signup page
• Sign up for a bet365 account
• Deposit minimum of $5
• Place a $5 bet on any March Madness matchup and get $150 in bonus bets

You can also choose to use their First Bet Safety Net ($1,000 in Bonus Bets) sports betting promo for new customers if you prefer as well.

Fanatics Sportsbook College Basketball Promo: Bet $30, Get $300 in Bonus Bets

State Offer Breakdown: Bet $30, Get $300 in Bonus Bets OR Bet & Get $1,000 in No Sweat Bets (AZ, MI, PA, NJ) / Bet $10, Get $20 in Bonus Bets (NY) / Bet & Get $1,000 in No Sweat Bets (All other states)

One of the newer online sports operators on the scene for the March Madness tournament, Fanatics Sportsbook will give you up to $1,000 as part of their sweet welcome bonus in all states but New York, and you can get a Bet $10, Get $100 in Bonus Bets offer in a handful of states, while in others you can do that three days in a row!

FANATICS SPORTSBOOK

Offer

T&Cs

Bet & Get Up To $1,000 No Sweat Bets!
Must be 21+. GAMBLING PROBLEM? Call 1-800-GAMBLER (AZ, CO, KY, MD, OH, MI, TN, VA, WV); 1-800-BETS-OFF (IA); 1-800-9-WITH-IT (IN); (800) 327-5050 or mdgamblinghelp.org (MD); 1800gambler.net (WV)

One (1) sign up offer per user. Must place initial wager within 5 days of account opening. Terms apply.

LOCK IN PROMO

SIGNUP PROMO

GET UP TO
$1,000 BACK

SIGN UP NOW

How it works:

• Make a $5 minimum deposit and place a between between $5 and $100 on odds of -200 or longer.
• Fanatics Sportsbook will match your first qualifying wager each day with bonus bets up to the $100 maximum for the first 10 days your account is active
• The maximum amount of matched bonus bets you can receive is $1,000 over 10 days

Caesars Sportsbook March Madness Promo: Bet $1, Double Your Winnings Your Next 10 Bets

Eligible States: Arizona, Colorado, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, Wyoming

Caesars Sportsbook doesn’t have a March Madness promo per se, but you can still leverage their fantastic Double Your Winnings bonus on any NCAA tournament game of your choosing.

How it works:

• Hit the links in this section to access this offer
• This is a sign-up offer for new players only
• Caesars will give you 10 100% profit boosts after you make your first bet of $1 or more
• It will be paid out in bonus bet credit

States Where You Can Bet On March Madness 2025

Not sure if you can bet on March Madness in your state? Don’t worry, we’ve got you covered with this list of states where you’re able to bet on March Madness.

North Carolina is the latest betting market to gain access to sportsbook apps for March Madness. The next table below outlines some of the apps North Carolina that new bettors and seasoned sharps can expect to get their hands on for the 2025 tournament.

March Madness Betting Promos FAQ

Got more questions about March Madness betting promos? We’ve got you covered

Use Sports Betting Bonuses to Wager with Confidence

Bonus offers are some of the best resources to help you bet on your favorite games with confidence. At Sports Betting Dime, we have all the details you need on the plethora of promotions from legal sportsbooks, including the ESPN BET promo code.

Be sure to check out our ‘Bonuses’ section for all the latest and greatest promos. We also have comprehensive guides on the different kinds of bonuses available at online sportsbooks.

We hope you enjoy the return of March Madness in 2025!