Prediction Markets
in South Dakota
South Dakota is fully open for prediction markets with no state income tax: prediction market profits are subject to federal taxes only. All major platforms are available and no enforcement actions have been taken. Sports betting is legal at retail locations in Deadwood but there is no statewide mobile sports betting license framework, which keeps CFTC-regulated prediction markets as the primary event contract option for SD residents seeking digital trading.
Which platforms work in South Dakota?
All categories available in South Dakota. No state-level restrictions.
Polymarket QCEX available in South Dakota. Apply via the national waitlist.
Both Mana and Sweepcash available in South Dakota.
CFTC no-action letter. US politics only, $850 cap. Available in SD.
All prediction market contracts available in SD.
No state income tax: the key advantage
South Dakota has no personal income tax and no corporate income tax: one of the most business-friendly tax environments in the country. For prediction market traders, that means Kalshi 1099-MISC profits are taxed at the federal rate only. In the 22% federal bracket, a SD resident keeps $7,800 of a $10,000 profit vs $7,200 for a Minnesota resident (22% + 7.85% state).
South Dakota's Deadwood casino area has offered in-person sports betting since 2020 (voter-approved). There is no statewide mobile sports betting framework: meaning digital event contracts on Kalshi and Robinhood have no direct domestic competition from licensed mobile sportsbooks in SD.
South Dakota vs neighboring states
Minnesota
Up to 9.85% state income tax: one of the highest in the US. Open status but costly for active traders vs South Dakota's zero rate.
No income taxWyoming
Also no state income tax. Sports betting fully legal with mobile since 2021: ahead of South Dakota.
Neighbor stateIowa
Open status, home of the Iowa Electronic Markets. 3.8% flat tax: low but not zero.