Massachusetts Sports Betting Tax Calculator
Estimate your total tax bill on Massachusetts sports betting winnings. Enter gross winnings, total losses (if itemizing), and your federal bracket to see your estimated federal and state tax owed.
How Massachusetts Taxes Sports Betting Winnings
Federal: All gambling winnings are taxable as ordinary income. Sportsbooks issue Form W-2G when a single bet wins $600+ at 300:1 or better odds. Even without a W-2G, all winnings must be reported on your federal return.
Massachusetts state: Massachusetts imposes a flat 5% state income tax on gambling winnings for residents. Non-resident bettors who win at MA sportsbooks may owe the 5% MA tax on those winnings, depending on amount and treaty.
Loss deductions: You can only deduct gambling losses if you itemize federal deductions (giving up the standard deduction). Losses can offset winnings up to the amount of winnings; never beyond. Massachusetts state taxes the full gross winnings amount and does NOT allow loss deductions at the state level.
This calculator provides an estimate only and is not tax advice. Consult a qualified tax professional for filing.