MLB Betting Promos: Place Bets Today Using Promotions From Top Sportsbooks

The Best MLB Betting Promos for September 2025

The best MLB betting promos cater to every type of baseball bettor, offering everything from first bet offers to deposit matches and bet-and-gets that pay out bonus bets. Whether you're a seasoned MLB bettor looking for the most rewarding sportsbook offers or placing your first bet today, these promotions are a great way to build your bankroll and boost your potential payouts all season long.

With the 2025 MLB season is underway, be sure to use these MLB betting promos to wager on today's games. Place your MLB picks now when you sign up with the best MLB betting promos featured on this page. 

Top MLB Betting Promos Today for the 2025 Season

Get in on MLB action today with the best MLB betting promos. Register now and bet on 2025 MLB regular season games or make MLB futures bets on the World Series or Cy Young.

1. bet365 MLB Promos

• bet365 Bonus Code: TAN365
  • Get a First Bet Safety Net up to $1,000 in Bonus Bets!  (AZ, CO, IA, IL, IN, KS, KY, LA, NC, NJ, OH, TN, VA)
  • Bet $5, Get $300 in Bonus Bets Win or Lose! (AZ, CO, IA, IL, IN, KS, KY, LA, MD, NC, NJ, OH, PA, TN, VA) 
• bet365 Sportsbook States: AZ, CO, IA, IL, IN, KS, KY, LA, MD, NC, NJ, OH, PA, TN, VA

The bet365 bonus code TAN365 gives new users access to two of the best MLB betting promos, allowing you to choose the promotion that best suits your betting style. Whether you prefer the security of a high-stakes wager with a First Bet Safety Net or a low-risk bet with guaranteed bonus funds, these bet365 sign-up bonus offers provide an excellent opportunity to boost your bankroll throughout the MLB season.

For those looking to place a larger first bet with added protection, the First Bet Safety Net ensures you get your stake back in bonus bets, up to $1,000, if your first wager loses. This promotion is ideal for bettors who want to wager confidently, knowing they get bonus bets back if their first bet doesn’t win.

If you prefer a low-risk way to start sports betting, bet365 Sportsbook offers $300 in bonus bets when you place a $5 first bet. You get the $300 in bonus bets regardless of whether your first bet wins or loses. This bet-and-get promo is a great way for bettors to maximize their value without a large upfront investment.

Bettors in Pennsylvania receive an enhanced version of the bet-and-get promo. By signing up with the bet365 bonus code TAN365, new users in PA automatically receive $150 in bonus bets, plus 50 spins for bet365 Casino.

2. BetMGM MLB Promos

• BetMGM Bonus Code TANMATCH1500 : Get a 20% Deposit Match up to $1,500 in Sports Bonus!
• BetMGM Bonus Code AN1500: Get up to $1,500 Back in Bonus Bets if Your First Bet Doesn't Win!
• BetMGM Bonus Code ACTIONGET2: Bet $10 Get $150 in Bonus Bets if You Win!
• BetMGM Available States: AZ, CO, DC, IL, IN, IA, KS, KY, LA, MA, MD, MI, NJ, NC, OH, PA, TN, VA, WV, WY

BetMGM Sportsbook is rolling out some of the best MLB betting promos, giving new users multiple BetMGM bonus code options to choose from throughout the baseball season.

For bettors looking to spread their wagers across multiple MLB games, there's a 20% deposit match offer that rewards new users with bonus funds based on their initial deposit. Claim the BetMGM bonus code TANMATCH1500 deposit match offer in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, or WY.

There's also a first bet offer option available with the BetMGM bonus code AN1500. Sign up and get up to $1,500 in bonus bets back if your first wager doesn’t win. If your bet wins, you collect your payout like any other cash bet. If your bet loses, you receive your stake back in bonus bets, up to $1,500, split into five equal bonus bet credits.

This promo is available in IL, IN, IA, LA, KS, KY, OH, TN, and WY, making it a great option for bettors looking for added protection on their first MLB bet.

The last BetMGM promo to choose from is open to those in MI, NJ, PA, and WV.

3. Caesars Sportsbook MLB Promos

• Caesars Sportsbook Promo Code: ACTION2220X
• Caesars Sportsbook Promo States: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY

MLB betting promos are heating up as the season gets underway, and Caesars Sportsbook is rolling out some of the best offers for new users. Whether you're backing a World Series contender or taking a shot on an underdog, these sign-up promotions provide extra value for every type of bettor.

For those looking to boost their potential winnings, Caesars Sportsbook promo code ACTION2220X lets you unlock the Bet $1, Double Your Winnings Your Next 20 Bets! promo offer, giving you a chance to increase payouts on your MLB wagers. Whether you're betting on moneylines, run lines, or player props, these tokens provide extra earning potential throughout the baseball season.

4. Fanatics Sportsbook MLB Promos

• Fanatics Sportsbook Promos:
  • Bet $10 Get $100 In FanCash + Up To $100 Back In FanCash Every Football Gameday!
  • Bet $50 Get $250 FanCash!
  • Bet and Get up to $1,000 in FanCash!
  • NY offer #1: Get 20+ $25 No Sweat Bets FanCash back if your football bet loses! 
  • NY offer #2: Sign Up and Get a 100% Profit Boost Token For 5 Days!
• Fanatics Sportsbook States: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY

Fanatics Sportsbook presents multiple welcome offers with the Fanatics Sportsbook promo, depending on the state you sign up in. Whether you’re looking for guaranteed bonus bets or No Sweat Bets, these MLB betting promos provide exceptional value for baseball fans.

Fanatics offers T&Cs:

• New customers in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VT, VA, WV, or WY. Must sign up by 9/30/25. Apply offer in bet slip; place $1+ American football cash wager w/ odds +300 or longer each Game Day. Wager must settle as loss to qualify for FanCash equal to the amount of losing wager (up to $100 FanCash per Game Day). Opt in; place $10+ on any market w/ odds -500 or longer within 7 days of sign up to get $100 FanCash. Rewards expire 10/31/25. Terms, including FanCash terms apply-see Fanatics Sportsbook app.
• New customers in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, NY, OH, PA, TV, VA, VT, WV, WY. Must opt-in and wager $10+ cash on any market with odds of -500 or longer to receive $50 in FanCash each day for your first 5 days (issued when qualifying wager settles). Your 5 days begin the day you establish your account. See full Promo Terms and FanCash terms in the Fanatics Sportsbook app.
• New customers in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, NC, OH, TN, VT, VA, or WY only. Must apply this promotion in your bet slip and place a $1+ cash wager with odds of -500 or longer each day for 10 straight days. Your 10 days begin the day you establish your account. Wager must settle as a loss to qualify for FanCash. FanCash will equal the amount of the losing wager(s) (up to $100 in FanCash per day) and expire 7 days from issuance. This offer is not available in NY. Terms apply- see Fanatics Sportsbook app.
• New customers in NY only. Must sign up by 9/30/25. Apply offer in bet slip; place $1+ American football cash wager w/ odds +300 or longer each Game Day. Wager must settle as loss to qualify for FanCash equal to the amount of losing wager (up to $25 FanCash per Game Day). Rewards expire 10/31/25. Terms, including FanCash terms apply-see Fanatics Sportsbook app.
• 21+. New customers in NY only. Must create an account to receive one (1) 100% Profit Boost token per day for 5 days straight (max stake $25; min. odds -500 or longer). Profit Boost Tokens must be applied in bet slip & expire 24 hours from issuance. See full Promo Terms in the Fanatics Sportsbook app.

5. DraftKings MLB Promos

• DraftKings Promo Code: No promo code required!
• Bet $5+ Get $300 in Bonus Bets Instantly + Over $200 Off NFL Sunday Ticket!
• DraftKings States: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY
• DraftKings T&C: GAMBLING PROBLEM? CALL 1-800-GAMBLER, (800) 327-5050 or visit gamblinghelplinema.org (MA). Call 877-8-HOPENY/text HOPENY (467369) (NY). Please Gamble Responsibly. 888-789-7777/visit ccpg.org (CT), or visit www.mdgamblinghelp.org (MD). 21+ and present in most states. (18+ DC/KY/NH/WY). Void in ONT/OR/NH. Eligibility restrictions apply. On behalf of Boot Hill Casino & Resort (KS). Fees may apply in IL. 1 per new DraftKings customer. $5+ first-time bet req. Get 1 promo code to redeem discounted NFL Sunday Ticket subscription and max. $300 issued as non-withdrawable Bonus Bets that expire in 7 days (168 hours). Stake removed from payout. Limited time offer. Terms: sportsbook.draftkings.com/promos. NFL Sunday Ticket: YouTube TV base plan (not included in this offer) required to watch NFL Sunday Ticket on YouTube TV. Subscription auto-renews yearly at then-current price (currently $378 for YouTube TV subscribers, or $480 for YouTube subscribers); cancel anytime. Terms, restrictions, embargoes and eligibility requirements apply. No refunds. Digital-only games excluded. Commercial use excluded. Addt’l terms: https://tv.youtube.com/learn/nflsundayticket/draftkings/. Offer ends 9/29/25 at 11:59 PM ET. Sponsored by DK.

DraftKings Sportsbook is another great option for sports bettors to snag some of the best MLB betting promos this season. Use our DraftKings promo code to get some bonus bets for your favorite MLB players or matchups this season.

Alternative Options to MLB Betting Promos

If traditional MLB betting promos aren’t available in your state, you can still stay in the game through Daily Fantasy Sports (DFS) platforms and social sportsbooks. These alternative options focus on player performance or virtual currency-based predictions, allowing you to enjoy baseball action without traditional moneyline and spread bets.

1. Underdog Fantasy (DFS)

• Underdog Fantasy Promo Code: ACTION
• Underdog Fantasy Welcome Offer: Play $5, Get $50!
• Underdog Fantasy States: AK, AL, AR, CA, DC, GA, IL, IN, KS, ME, MN, MS, NC, ND, NE, NM, NY, OK, OR, RI, SC, SD, TX, UT, VA, VT, WI, WY

Underdog Fantasy offers a DFS-style experience where users make “Higher” or “Lower” picks on individual player stats such as home runs, RBIs, and strikeouts. New users who sign up with the Underdog Fantasy promo code ACTION receive a 50% deposit match, up to $1,000 in bonus funds.

For example, you could build an MLB lineup that looks like this:

• Aaron Judge – Higher than 1.5 total bases
• Tarik Skubal – Lower than 7.5 strikeouts
• Shohei Ohtani – Higher than 2.5 hits + runs + RBI

2. Fliff Social Sportsbook

• Fliff Promo Code: ACTION
• Fliff Sign-Up Bonus: Spend $100, Get $200 in Fliff Coins!
• Fliff States: AK, AZ, AR, CA, CO, CT, DC, DE, FL, IL, IN, IA, KS, KY, ME, MD, MA, MI, MO, MT, NE, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SD, TX, UT, VT, VA, WV, WI

Fliff Social Sportsbook allows users to make picks with Fliff Coins instead of real money, creating a fun and interactive way to engage with MLB betting markets. With the Fliff promo code ACTION, new users receive the following promo: ACTION

3. Kalshi

• Kalshi Promo Code: ACTION
• Kalshi Sign-Up Bonus: Trade on Sports & Politics – Get a $10 Bonus with Our Code!
• Kalshi States: Every US State!

Kalshi is not sports betting, it is a prediction market. It recently has brought sports event contracts to fans so that they can predict outcomes on events. It is a simple premise of picking yes or no on pretty much any question imaginable. You can choose sports outcomes if you'd like, or even dabble into the world of politics or entertainment. Learn more by checking out our Kalshi referral code and review!

How to Sign Up for the Best MLB Betting Promos

Signing up for your new user bonus for MLB betting is the most important part of the process. Read our steps below to make sure you don't miss anything while preparing to get one of the best MLB betting promos.

Step 1: Click the sign up section of the promo code. The first part of this process is clicking on the promo code or bonus offer for whatever sportsbook you'd like to sign up for. You can start this process using any of the sign up options on our page.

Step 2: Enter your personal details. Once you've started the sign up process, you'll need to input your correct personal identification details for legal purposes. You'll often have to share things like your name, phone number, email, state of residence, and social security number.

Step 3: Follow the terms and conditions. Here you need to make sure you follow all the terms and conditions of your bonus offer correctly. Sometimes you'll need to input one of our promo codes, and sometimes you won't. But it is important to read the terms and conditions at the sportsbook you're using to make sure you get your sign up bonus.

Step 4: Deposit. The next step is usually to make your first deposit. This is when following the terms and conditions is important, because a lot of sportsbooks have deposit minimums of around $5 or $10 to get the new user bonus.

Step 5: Get your MLB betting promo. Once you've followed all the steps above, and the terms and conditions at your sportsbook, you can get your MLB betting promo. 

Types of Promos on the Best MLB Sportsbooks

The fun of picking between the best MLB betting promos is that you have plenty of options between types of bonuses. Here are some examples of what you may see when you use any of our best MLB betting promos on baseball bets.

• Bonus Bets: The bonus bets are a typical promo offer given to new users by a lot of sportsbooks. They usually are given if a new user places a first time wager, and have an expiration on when they can be used. 
• Deposit Match: A deposit match is when a sportsbook matches your first deposit with some kind of bonus credits. It is a good way to get a "2-for-1" type of deal.
• No Sweat Bets: No sweat bets are used often as well, and are simply how you can get your first wager back to you if you lose it. This is another type of "2-for-1" offer, but it is only given if your first wager loses.
• Daily Boosts: Daily promo boosts are a big part of existing user promos on pretty much every popular sportsbook. They are a great way to get better odds on popular athletes or sporting events each day, so we recommend checking those out on your favorite sportsbooks.
• Profit Boosts: A profit boost is usually given as tokens to use either as a new user offer or existing promos. These profit boosts can be added to bets or parlays to juice up the odds in your bet.
• Referral Bonuses: Sportsbooks have referral bonuses that you can share with your friends too. These help you and your friends get bonus offers back from the sportsbook just from sharing a certain code together.
• Rewards Programs: These aren't at all the sportsbooks we use, but rewards programs are a great incentive to staying consistent with a sportsbook. Fanatics FanCash is a great example of this. FanCash is earned on every bet at Fanatics Sportsbook, and you can use that later on as bonus credits in bets or in the Fanatics store.

Bet on World Series Odds With Best MLB Betting Promos

The Dodgers are heavy favorites to win the 2025 World Series, but teams like the Yankees and Phillies are well-positioned to challenge them. Below are the teams with the best odds of winning the 2025 World Series. See where every team stands by checking out our World Series odds page on the MLB futures page today.

Team	Odds
Los Angeles Dodgers	+400
Philadelphia Phillies	+600
Detroit Tigers	+750
New York Yankees	+800
Milwaukee Brewers	+850
Toronto Blue Jays	+1100
Houston Astros	+1100
San Diego Padres	+1200
Seattle Mariners	+1500
New York Mets	+1500
Chicago Cubs	+1500
Boston Red Sox	+2000

World Series Odds Updated: September 04, 2025 Odds provided by DraftKings and are subject to change.

MLB Betting Analysis and Daily Picks

MLB betting is one of our favorite ways to bet for us here at Action Network. We consistently share ways to bet on home runs, MLB futures, and baseball parlays on our site. 

If you're looking to tail any of our bets or just read some good analysis on MLB betting, make sure to check out our MLB betting page today. 

You'll also find plenty of videos and podcasts there too that can help you with all of your baseball betting this season. Use our best MLB betting promos along with our content on baseball betting to organize all of your baseball bets.