March Madness Betting Promos & Bonuses for US Players

College basketball betting promo codes for March Madness and bonuses are available for the 2025 NCAA Tournament at online sportsbooks. Below, we review the available college basketball betting bonuses and provide details on how you can claim the promos.

Recommended march madness betting promos

1
Up to $1,500
In Bonus Bets
Top Features
  • 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: PLAYLSR

2
Up to $1,000
In Bonus Bets
Top Features
  • Bet $5 Get $150 in Bonus Bets Win or Lose
  • OR First Bet Safety Net up to $1,000
  • 30% Extra on Same Game Parlay Profit
  • T&Cs Apply. Gambling Problem? Call or text 1-800-GAMBLER 21+
  • Use Bonus Code: LSRBET
3
Bet $1, Double Your Winnings
On Next 10 Wagers
Top Features
  • Stream NFL Games In-App for Free
  • 21+ Gambling problem? Call 1-800-GAMBLER
  • Use Promo Code: LSRDYW
4
Bet $5
Get $250
In Bonus Bets
Top Features
  • Bet $5, Get $250 in Bonus Bets if Your Bet Wins
  • Available on Desktop, Android & iOS
  • Gambling Problem? Call 1-800-GAMBLER. 21+
  • To Claim: Click Play Now
5
Up to $100
In Bonus Bets
Top Features
  • Up to $100 in Bonus Bets if First Your Bet Doesn't Win
  • Get Your Bets Boosted
  • 21+. Gambling Problem? Call/Text 1-800-Gambler. T&Cs apply
  • To Claim: Click Play Now
6
Up to $1,000
In No Sweat Bets
Top Features
  • Bet and Get up to $1,000 in No Sweat Bets or Choose Your Own Offer
  • Earn FanCash & Spend it on Team Swag or More Bets
  • 21+. Gambling Problem? Call 1-800-GAMBLER
  • To Claim: Click Play Now
7
Up to $1,250 Bonus
New User Bonus. T&Cs Apply.
Top Features
  • Bet $5 Get $200 in Bonus Bets

  • PLUS Get a $50 Bonus Bet on Deposit

  • PLUS up to $1,000 Deposit Bonus

  • Gambling Problem? Call 1-800-GAMBLER

SportsbookCollege basketball promo & offerPromo code
DraftKings SportsbookUp to $1,250 in bonus fundsNo promo code needed
Caesars SportsbookBet $1, double your winnings on next 10 wagersUse promo code LSRDYW
BetMGM SportsbookUp to $1,500 in bonus bets if your first bet doesn’t winUse promo code PLAYLSR
FanDuel SportsbookBet $5 or more, get $250 in bonuses if your bet winsNo promo code needed
Bet365 SportsbookBet $5, get up to $150 win or lose OR a first bet safety net up to $1,000LSRBET*
Fanatics SportsbookBet and get up to $1,000 in no-sweat betsClick to claim promo

March Madness betting bonuses reviewed & ranked

There are a variety of college basketball betting bonuses to consider for the 2025 national championship tournament. Below, we have full details on the currently available sportsbook promos at top betting sites.  

1. DraftKings 

The DraftKings promo code is a three-part bonus offer for new users, highlighted by a bet $5, get $150 promo. Once you register for an account, place a bet of $5 or more to receive $150 in bonus bets. Additionally, you’ll receive a $50 bonus bet just for signing up and a 20% match of your initial deposit, up to a maximum of $1,000 in bonus funds.

The sportsbook also offers a regular assortment of college basketball promos. Over the offseason, you may find odds boosts on select wagers, such as a team to win the national championship. DraftKings is rolling out several special promos for first-round games, including a Super Boosts, March Mania Flash Boosts, and CBB parlays.

2. Caesars 

If you use the Caesars Sportsbook promo code LSRDYW, you can get ten 100% profit boost tokens on your first $1 wager. Once you’ve signed up for an account with the code, make a deposit of at least $10 and place a first bet of $1 or more. If that bet wins or loses, Caesars will fund your account with 10 100% profit boost tokens. 

Besides the welcome offer, Caesars users can select from a strong daily odds boosts on select tournament games, along with “Firebet” live bet boosts. You’ll also find several pre-built parlays available for games taking place that day. The various bets are located near the top of the college basketball betting menu.     

3. BetMGM 

New BetMGM users will receive insurance of up to $1,500 for the first wager using the BetMGM bonus code. Sign up with the code PLAYLSR, make a deposit of $10 or more and place your first bet of $5 or more. If you lose that first college basketball bet, the sportsbook will return your stake — up to the offer max — in the form of bet credits that you can use to place additional wagers.  

BetMGM also offers ongoing promos throughout the college basketball season, including the tournament, such as odds boosts and parlay insurance. The sportsbook also regularly features select SGP wagers with a boost, such as Auburn to win or cover the spread plus designated game or player props. Often, the bet will be boosted, providing you a chance to earn additional profits. 

*Bonus bets expire in seven days. One new customer offer only. Additional terms.

4. FanDuel 

The FanDuel Sportsbook promo for new users has a bet $5, get $150 that’s available for college basketball games. Once you’ve created your account, make an initial deposit of $10 or more. From there, place a first bet of at least $5. If the bet wins, you’ll receive $150 in bonus bets that you can use to place additional wagers. 

All the way up to the national championship game, the sports betting giant will offer profit boost tokens for select games, SGPs with insurance, and even occasional bet credits or deposit matches.  

5. Bet365 Sportsbook

Bet365 is a European-based sportsbook that continues to expand across the US. The sportsbook is now live in Illinois and Tennessee. Users will notice competitive college basketball odds when compared to the other brands highlighted on this page. You’ll find all of the bets you could ask for all the way through the NCAA Tournament, as well as a steady stream of promos on the user-friendly app. If you use the bet365 bonus code LSRBET, you’ll have a choice between two welcome offers: bet $5 to get $150 in bonus bets win or lose, or a first-bet safety net up to $1,000. Keep it mind, you can only pick one.

6. Fanatics Sportsbook

The top Fanatics Sportsbook promo is a Bet and get deal up to $1,000 in no sweat bets. Once you sign up and make an initial deposit of $5 or more, the sportsbook will match the amount of your first daily bet — minimum $5 and maximum $100 — for up to 10 or 11 days in row. You could receive up to $1,000 in bonuses. 

As an added bonus, users can convert FanCash into bonus bets or redeem it at the online Fanatics store. The sportsbook also offers a steady stream of CBB profit boosts, popular parlays, bonus bets, and more. 

How to use betting bonuses on march madness

Betting bonuses on college basketball are available at online sports betting sites throughout the NCAA Tournament. Your betting bonuses can be used to build up that initial bankroll. The strategy applies to the start of the season or during the tournament. It really depends on when you decide to take advantage of a sportsbook’s college basketball betting welcome offer. In most cases, the welcome bonus offer typically applies to your first bet

Common terms for college basketball betting promos

Every college basketball betting promo has its own terms and services. This is why before claiming any offer, make sure you understand what’s entailed. It comes down to what type of promo the CBB betting sites are offering. For example, a bet and get requires you to make a minimum deposit and wager (usually in the $5-$10 range) in order to take advantage of a set bonus amount. 

Other sportsbooks offer a first bet bonus in the form of insurance, essentially protecting your initial bet. If your first bet ends up being a losing one, the sportsbook will issue you bonus bets up to a certain amount. If you do receive bonus bets, it comes in the form of site credit and is not considered real money. Most of the top March Madness betting sites have a playthrough requirement associated with the bonus before the funds can be withdrawn. If you do win a bonus bet. the sportsbook keeps the bet amount and you keep the winnings. Always read the full college basketball betting promo terms before taking advantage of a promo.

Claiming new-user bonuses for betting on college basketball

Follow these steps to claim new-user bonuses for betting on an NCAA Tournament game: 

  1. From the above list, choose one of our recommended college basketball betting sites. 
  2. Click the “play now” button to begin the sign-up process.
  3. Follow the prompts and enter all of the information the sportsbook is requesting along with any necessary codes. 
  4. Once you’ve created an account, make an initial deposit using your preferred banking method. 
  5. Check out the latest college basketball odds and betting lines and choose a wager that interests you. 

You can also visit the “my account” section of the sportsbook to view your available bonuses and offers. Additionally, as you get ready to place bets, you should see an option to apply any applicable bonuses on the betting slip before you place your wager.  

Types of college basketball betting bonuses for March Madness

Here’s a closer look at some of the most common sportsbook promos you might come across for betting on college basketball and how each one works. These are very similar to the familiar NFL betting promos, though you will find some slight differences.

Parlay insurance

Parlay insurance gives you with a safety net on multi-leg wagers. With this promo, you’ll first need to place a standard or same-game parlay with typically three or more selections. However, in most cases, if the bet loses by just a single leg, the insurance factor comes into play as the sportsbook will refund the amount of your wager, up to the limit of the promo. 

On the other hand, if you get two or more legs incorrect, the bet is considered a loss and the insurance will not factor into the equation. As an example, let’s say you place a $25 four-leg NCAA Tournament parlay in which Duke, St. John’s, Michigan, and Arizona each must win their first-round game outright. If you qualify for a parlay insurance promo and only three of the four teams go on to victory, you’ll get your $25 stake back.  

Bonus bets

Bonus bets are credits that a sportsbook provides either when you sign up or as a special promotional offer. You can use bonus bets to place wagers on the site. Once you use them, the bonus bets are gone, win or lose. If you win, you’ll receive back the winnings, but not the amount of the credit itself.  Remember site credits are not considered real cash.

For example, say you’ve received a $50 bonus bet after signing up at a sportsbook. You decide to use it on a spread bet for Gonzaga to cover the -14.5 spread in its game against San Francisco at odds of -110, and the Bulldogs win by 17 points. You’ll receive winnings of $45.45 at the listed odds, but not the amount of the bonus bet credit.    

Odds boosts

Odds boosts are regularly available at many college basketball betting sites. The sportsbook will boost the odds on various bets, including moneylines, player props, Final Four futures, and same-game parlays. Other operators will offer users tokens that can be applied to the wager of your choice, up to a maximum amount. 

By placing a bet with boosted odds, the profit potential for a winning wager increases. For example, let’s say that High Point is a +270 underdog in an upcoming game against Purdue. The sportsbook is offering an odds boost to +350. At odds of +270, a $100 winning wager has a profit potential of $270. A boost to +350 increases the possible profit to $350. 

Deposit matches

With a deposit match, the sportsbook is providing you with a bonus that is applied when you add funds to your account. The match typically happens when you first open your account, or as a special promotion for existing users. The amount of the match will vary, such as 20% of your deposit or a straight dollar-for-dollar match up to a certain amount. 

The amount of the match may be available right away, or it could be subject to a playthrough requirement. For the latter case, the sportsbook will release the bonus funds in stages, such as $1 for every $25 that you wager at the book. Once the match is available in your account, you can use those funds to place additional March Madness bets. 

Bet and gets

For a bet-and-get promo, you’ll be required to wager a minimum amount to receive back bonus bets. DraftKings and FanDuel are operators currently offering similar bet and get promotions. However, there is a difference in the terms and amounts. At DraftKings, you’ll receive $150 in bonus bets instantly once you have placed the bet. 

Meanwhile, FanDuel delivers the $150 in bonus bets only if you win your first wager. Once you receive the credits, you can use them to place additional bets. You don’t have to use them in a single lump sum and can instead spread them out into smaller wagers, but be sure to use them before the expiration date.     

College basketball responsible gambling 

It’s important to remember betting on college basketball and any other sport is meant to be a form of entertainment. There are no guarantees that your moneyline, spread or parlay bet will be a winner. As a result, you should only wager amounts that you are comfortable losing. To make sure that it remains a source of enjoyment, always play responsibly and within your limits. If you or someone you know needs assistance, several responsible gambling resources are available via phone and online.

March Madness betting promo FAQ

Are sportsbook promos available to use on college sports?

Yes, for the most part, sportsbook promos are available to use for bets on college sports. However, sportsbooks do have some promos that are only available for NBA or NFL games. It’s a good idea to read the full terms and conditions before using a promo.  

What is the best March Madness promo for 2025?

Basically, the best March Madness promo comes down to personal preference. If you like parlay bets, a 30% profit boost on a SGP is a great option. Others might be prefer an odds boost that doesn’t require multiple legs hitting.

What is the easiest NCAA Tournament bet to win?

When it comes to the NCAA Tournament, there is no such thing as an easy bet to win as upsets happen regularly. If you’re new to college basketball betting, be aware that every bet carries some level of risk. Consider starting with a simple type of bet such as a moneyline (outright winner) and learn all of the intricacies before trying a 3+ leg SGP. 

Is it legal to bet on in-state college basketball teams?

The answer to that question really depends what state you call home. Anybody placing bets from the Garden State, for example, wagers on Rutgers and Seton Hall are prohibited. Additionally, sportsbooks are not allowed to take bets on any NCAA Tournament games taking place in New Jersey. This includes the 2025 East Region final.

When is Selection Sunday for the 2025 NCAA Tournament?

Selection Sunday for the 2025 NCAA Tournament was March 16.

Where is the 2025 Final Four taking place?

This year’s Final Four is taking place at the Alamodome in San Antonio April 5 & 7.