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Missouri Sports Betting Tax Calculator

Enter your annual sports betting winnings, your other income, and your filing status to see an estimate of federal and Missouri state tax liability. This tool is informational and should not be used as a substitute for advice from a tax professional.

Total winnings — not net. The IRS taxes gross winnings.
Only deductible if you itemize federal deductions.
Used to estimate your federal marginal tax bracket.
Federal Tax (est.) —
Missouri State Tax (est.) —
Total Tax on Winnings —
Net After Tax —

How sports betting taxes work in Missouri

Federal taxes

The IRS treats sports betting winnings as ordinary income taxed at your marginal federal rate. Sportsbooks issue a W-2G form when you win at least $600 and the payout is at least 300 times your wager. Sportsbooks may withhold 24% federal tax automatically on certain large payouts, but you owe what your actual marginal bracket dictates.

Missouri state tax

Missouri taxes sports betting winnings as ordinary income at the standard state income tax rate, which has been gradually decreasing in recent years. The current top marginal rate is approximately 4.7%. Bettors should expect to pay state tax on winnings even if no withholding is performed by the sportsbook.

Deducting losses

Federal: You can deduct gambling losses, but only up to the amount of winnings, and only if you itemize deductions on Schedule A. Most casual bettors take the standard deduction and cannot deduct losses.

Missouri: Missouri generally follows federal treatment of gambling losses. You must itemize on your federal return to claim the deduction at the state level.

Record-keeping

Keep records of every wager: date, sportsbook, type of bet, amount staked, and result. The IRS expects detailed records, especially if you claim losses. Most Missouri sportsbook apps export bet history as CSV — pull that monthly into a spreadsheet to make tax season painless.

Important caveats

  • This calculator provides estimates only. It does not account for all deductions, credits, or the full federal bracket structure.
  • Federal tax brackets adjust annually for inflation. State tax rates can change with new legislation.
  • If you have substantial gambling winnings, consult a CPA or tax attorney. The cost of professional help is small compared to underpayment penalties.
  • Sportsbooks themselves pay a 10% tax on adjusted gross revenue under Amendment 2 — this is operator-level and does not directly affect you.