Montana Sports Betting Tax Calculator
Montana taxes gambling winnings as ordinary income at graduated brackets (varies by income). Sports betting is legal (retail only) in Montana with operators including Montana Lottery Sports Bet Montana. Sports betting available through Montana Lottery at retail locations only.
Calculate Your Montana Sports Betting Tax
2026 rules: 90% loss deduction cap applies (OBBBA)
Your salary, wages, and other non-gambling income
Losses can only be deducted if you itemize deductions
You cannot deduct gambling losses with the standard deduction. Switch to itemized to deduct losses.
Tax Breakdown
W-2G Form: Likely Required
Your total winnings of $10,000 exceed the $2,000 W-2G threshold for 2026. Individual wins that also meet the 300:1 odds requirement may trigger a W-2G form. Use our W-2G Checker for precise results.
Federal Withholding
$2,400 (24%) would be withheld at the time of payout. You may be due a refund of $1,200.
Montana Gambling Tax Key Facts
- ✓State income tax: graduated brackets (varies by income)
- ✓Sports betting: legal (retail only)
- ✓Available sportsbooks: Montana Lottery Sports Bet Montana
- ✓Gambling loss deductions ARE allowed (must itemize)
- ✓Gambling winnings from Montana State Lottery may be exempt
How Sports Betting Taxes Work in Montana
Montana taxes gambling winnings as ordinary income through graduated tax brackets. Your gambling winnings are added to all other income and taxed accordingly.
Montana allows gambling loss deductions following federal rules. Under the 2026 OBBBA, losses are deductible at 90% (capped at the amount of winnings) when itemizing deductions.
Montana Allows Gambling Loss Deductions
Montana follows federal rules for gambling loss deductions. The 2026 OBBBA 90% cap applies when itemizing.
Montana Tax Example
A single filer in Montana earning $60,000 with $10,000 in sports betting winnings and no losses
Licensed Sportsbooks in Montana
You must be physically located within Montana to place bets on these platforms.
How Montana Compares to Neighboring States
Recent Montana Gambling Tax Changes
Sports betting available through Montana Lottery at retail locations only.
Montana Sports Betting Tax FAQ
How much tax do I pay on sports betting winnings in Montana?
Montana taxes gambling winnings at graduated brackets (varies by income) on top of federal tax (10-37%). Your total combined tax rate depends on your income level and filing status.
Is sports betting legal in Montana?
Yes, sports betting is legal (retail only) in Montana. Licensed operators include Montana Lottery Sports Bet Montana. You must be physically located within Montana borders to place bets.
Can I deduct gambling losses in Montana?
Yes, Montana allows gambling loss deductions following federal rules. You must itemize deductions, and losses are limited to the amount of your winnings. The 2026 OBBBA 90% cap applies.
Montana Tax Authority
For official tax guidance specific to Montana, contact the state tax authority:
https://mtrevenue.gov/↗Calculate Your Montana Sports Betting Taxes
Use our free calculator above to see exactly what you owe in Montana.
Full Tax Calculator