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Maine

All Betting Bonuses in Maine

Maine only has two online sportsbooks. We present you with these, and all other legal betting alternatives and sign-up bonuses in the Pine Tree State.

Mills Has Signed LD 1164,
Online Casinos Are Coming To Maine

Maine Sports Betting Bonuses

All Legal Alternatives

21+. Bet Responsibly. Gambling problem? Call 1-800-GAMBLER.
#1
Caesars
Bet $1, Double Your Winnings on Your Next 20 Bets
Bonus Min. Deposit
$‎10
Maximum bonus
$‎50000
Expiry
14 days
Claim
Go to Caesars
Win or Lose, Get Your First Bet Matched up t0 $250 as a Bonus Bet
21+ only. New customers only. Must use Promo Code BB250BM.
AZ/CO/IL/IN/IA/KS/KY/LA/ME/MA/ MD/MI/MO/NJ/NY/NC/OH/PA/TN/VA/WV/WY/DC only.
Deposit required (min $10). Must place first real money Qualifying Wager (min $1) within 30 days of opening account. Receive a non-withdrawable bonus bet worth 100% of your bet's value up to $250 (eg, a $300 qualifying wager results in a $250 bonus bet). Minimum odds of -500 on qualifying wager. Bonus Bet expires 30 days after receipt.
See full T&C at Caesars.
#2
Draftkings
Bet $5, Get $300
In Bonus Bets if your bet wins
Bonus Min. Deposit
$5
Maximum bonus
$300
Expiry
7 days
Claim
Go to Draftkings
Bet $5+, Get $200 in Bonus Bets if your bet wins.
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). Pass-thru of per wager tax may apply in IL. 1 per new customer. Must register new account to receive reward Token. Must select Token BEFORE placing min. $5 bet to receive $200 in Bonus Bets if your bet wins. Min. -500 odds req. Token and Bonus Bets are single-use and non-withdrawable. Token expires 1/11/26. Bonus Bets expire in 7 days (168 hours). Stake removed from payout. Terms: sportsbook.draftkings.com/promos. Ends 1/4/26 at 11:59 PM ET. Sponsored by DK.

More Betting Options in Maine

Social Sportsbooks, Prediction Markets & Fantasy

21+. Bet Responsibly. Gambling problem? Call 1-800-GAMBLER.
BonusBonus Min. DepositMaximum bonusPromo code
#1
Spend $5, Get $50
Bonus Min. Deposit
$5
Maximum bonus
$50
Promo code
BETBONUS
Review
Claim
#2
$50 Deposit Match
With Code BETBONUS
Bonus Min. Deposit
$10
Maximum bonus
$50
Promo code
BETBONUS
Review
Claim
#3
500 GC+ 3 SC
No-Deposit Bonus
+100% Extra Coins on First Purchase
Bonus Min. Deposit
N/A
Maximum bonus
$203
Promo code
BSVIP
Review
Claim
By using Legendz games or platform, you agree to these Terms and Conditions, which form a binding legal agreement and include linked policies such as Privacy and Responsible Gameplay. Use requires acceptance during registration; if you disagree, you may not play. Disputes must generally be resolved through individual binding arbitration, with a right to opt out. Legendz does not offer real money gambling—games are for entertainment only. Eligible users must be in the U.S., excluding the states of Connecticut, Idaho, Kentucky, Michigan, Montana, Nebraska, Nevada, New Jersey, New York, Washington, and West Virginia.
#4
Spend $50, Get $100
In Coins & Free Fliff Cash
Bonus Min. Deposit
$50
Maximum bonus
$100
Promo code
FLIFFBONUS
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Claim
#5
Get $10
When You Trade 100 Contracts
Bonus Min. Deposit
N/A
Maximum bonus
$10
Promo code
SBO
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Claim
#6
Buy $10, Get $50
In Thrillzz Coins
Bonus Min. Deposit
$10
Maximum bonus
$50
Promo code
N/A
Review
Claim
#7
Play $5, Get $50 in Lineups
Win or Lose
Bonus Min. Deposit
$5
Maximum bonus
$50
Promo code
SBO
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Claim
$50 provided as promo funds, only for use on PrizePicks. Promo funds provided under this promotion must be played within 90 days of receipt or shall become null and void at PrizePicks' discretion. Promo ends 12/31/25. Void where prohibited. If you or someone you know has a gaming problem, get help. Crisis services and responsible gaming counseling can be accessed by calling 1-800-426-2537 or online at www.ncpgambling.org. 18+ in most eligible jurisdictions, but other age and eligibility restrictions may apply. Valid only in jurisdictions where PrizePicks operates. See prizepicks.com/terms for full PrizePicks terms of service.
#8
Get a $5 Bonus
With your first deposit
Bonus Min. Deposit
$5
Maximum bonus
$5
Promo code
N/A
Review
Claim
#9
Get $3 Contest Ticket
Signing Up & Depositing $5+
Bonus Min. Deposit
$5
Maximum bonus
$3
Promo code
N/A
Review
Claim
Terms and conditions apply. Log in or sign up to DraftKings Predictions to view.
#10
Get $25 in Bonus Picks With Your First Deposit of $5
Bonus Min. Deposit
$5
Maximum bonus
$25
Promo code
N/A
Review
Claim
Gambling Problem? Call 1-800-GAMBLER. Help is available for problem gambling. Call (888) 789-7777 or visit ccpg.org (CT). 18+ (19+ AL/NE, 21+ AZ/MA/VA). Valid only where Pick6 operates, see dkng.co/pick6states. Void in NY, ONT, and where prohibited. Eligibility restrictions apply. 1 per new DraftKings customer. $5+ first Pick Set to receive max. $50 issued as non-withdrawable Bonus Picks that expire in 14 days (336 hours). Ends 10/13/25 at 11:59 PM ET. Terms: pick6.draftkings.com/promos. Sponsored by DraftKings.
#11
Waived Deposit Fees
For New Users
Bonus Min. Deposit
$5
Maximum bonus
$0
Promo code
N/A
Review
Claim
#12
Get 100 Coins Daily
Free When You Log On
Bonus Min. Deposit
N/A
Maximum bonus
N/A
Promo code
N/A
Review
Claim
Social Sportsbooks
Free-to-play or real money alternative that simulates real betting. Click here to find a social sportsbook bonus.
DFS & Pick'em
Draft your own fantasy team using real players, and win prizes. Click here to find a bonus for fantasy sports.
Prediction Markets
Predict Yes/No outcomes on real events, and win real money. Legal in all states. Click here to find a prediction bonus.

FAQ - ME Sports Betting Bonuses

Is online betting legal in Maine?

Yes. Online sports betting was officially legalized in Maine in 2023, but only the four tribal casinos may offer mobile betting licenses. Currently two options are available in the state:

Are online casinos legal in Maine?

Regretfully, real-money online casinos are currently not legal in Maine. 

Does Maine allow international online gambling sites?

Yes, Caesars and DraftKings are available in the state. There are also options like Kalshi (prediction markets) and Fliff (social/sweepstakes) for players looking for new bonuses to play with. 

What's the legal gambling age in Maine?
  • 21+ for online sportsbooks, retail betting and tribal casinos.
  • 18+ for lotteries, bingo, horse racing etc.
  • 18+ for social sportsbooks, predictions and fantasy.
Why are only DraftKings and Caesars available in ME?

Maine has four recognized Native American tribes: The Houlton Band of Maliseet Indians, Mi’kmaq Nation, Penobscot Nation, and Passamaquoddy Tribe. These tribes have exclusive rights to offer online sports betting in the state. Each tribe is allowed to partner up with one sportsbook operator. This means that Maine has the possibility for four online sportsbooks.

The Passamaquoddy partnered up with DraftKings, but the three remaining tribes all chose to partner with Caesars. This means that all four partnership slots are taken, even though there is only two sportsbooks available. 

Does Maine impose a tax on gambling?

There is no specific gambling tax, but gambling profits count as taxable income in Maine. The state does not have a flat rate, but the rate is capped at 7.15%. Keep in mind that federal tax is always applied to gambling winnings. 

Visitors to the state are also required to file a Maine tax return and submit their gambling winnings. Depending on the state of residency, they may also be required to pay taxes in their home-state.