Short answer: online and retail sports betting has been legal in Missouri since December 1, 2025, for anyone 21 or older who is physically in the state.
The basics - Voters approved sports betting in November 2024 (Amendment 2), and the market launched December 1, 2025. - Eight online sportsbooks went live: bet365, BetMGM, Caesars, Circa Sports, DraftKings, Fanatics, FanDuel and theScore Bet. - Missouri taxes sportsbooks at 10% of revenue, one of the lower rates in the country.
Year one in numbers - December 2025 handle was just over $543 million. - By September 2026, the Missouri Gaming Commission had collected about $11 million in sports betting tax, roughly $2 million a month, against a first-year target of $25 million. Promotional credits are deductible for operators, which reduced early tax revenue.
Player protections built into the law - Apps must let you set daily, weekly or monthly limits on deposits, wagers and time. - You can take a temporary account suspension from 72 hours to one year. - You can join the Missouri Gaming Commission's self-exclusion program, and apps must link to it. - A Compulsive Gaming Prevention Fund gets at least 10% of sports betting tax revenue (or $5 million, whichever is greater).
If betting is starting to feel like a problem, call or text 1-800-MY-RESET (24/7, free, confidential).
Missouri members: one year in, which app do you actually use most, and has legal betting changed how you watch Chiefs, Cardinals or Blues games?
The basics - Voters approved sports betting in November 2024 (Amendment 2), and the market launched December 1, 2025. - Eight online sportsbooks went live: bet365, BetMGM, Caesars, Circa Sports, DraftKings, Fanatics, FanDuel and theScore Bet. - Missouri taxes sportsbooks at 10% of revenue, one of the lower rates in the country.
Year one in numbers - December 2025 handle was just over $543 million. - By September 2026, the Missouri Gaming Commission had collected about $11 million in sports betting tax, roughly $2 million a month, against a first-year target of $25 million. Promotional credits are deductible for operators, which reduced early tax revenue.
Player protections built into the law - Apps must let you set daily, weekly or monthly limits on deposits, wagers and time. - You can take a temporary account suspension from 72 hours to one year. - You can join the Missouri Gaming Commission's self-exclusion program, and apps must link to it. - A Compulsive Gaming Prevention Fund gets at least 10% of sports betting tax revenue (or $5 million, whichever is greater).
If betting is starting to feel like a problem, call or text 1-800-MY-RESET (24/7, free, confidential).
Missouri members: one year in, which app do you actually use most, and has legal betting changed how you watch Chiefs, Cardinals or Blues games?