Has South Dakota sued Kalshi or ordered it to stop?

Not that we have found. We have no cease-and-desist letter, state lawsuit, court order or settlement in South Dakota that names Kalshi, as of Oct. 21, 2026.

How old do you have to be to use Kalshi in South Dakota?

18. That is Kalshi's minimum age, and it lists no different rule for South Dakota.

Is sports betting legal in South Dakota?

Retail only. Sports betting only at Deadwood casinos and tribal venues; SJR 504 for a mobile betting ballot measure was deferred in a House committee in Feb 2026.

Which court will decide whether South Dakota can regulate Kalshi?

Federal appeals from South Dakota go to the Eighth Circuit, where an appeal on the question is pending. 3 petitions now ask the U.S. Supreme Court to settle the question nationally.

SD · Kalshi · Checked Oct. 21, 2026

Is Kalshi legal in South Dakota?

No restriction found South Dakota: No public action found

The short answer

Kalshi does not publish a list of states where it is unavailable, and we found no court order, regulator action or Kalshi notice that stops it from serving South Dakota as of Oct. 22, 2026.

South Dakota has one public action on record that names Kalshi. The latest (June 12, 2026): South Dakota joined a 37-state coalition (36 states plus California) that filed an amicus brief in the Sixth Circuit supporting Ohio's enforcement position against Kalshi (date is the coalition announcement).

Federal appeals from South Dakota go to the Eighth Circuit, where an appeal on the question is pending.

Availability: Kalshi Help Center: Signing Up as an Individual (updated March 10, 2026), checked Oct. 22, 2026. A summary of public actions, not legal advice.

Follow South Dakota

Cite this page

Bluebook

Is Kalshi Legal in South Dakota?, Prediction Market Laws (last updated Oct. 22, 2026), https://predictionmarketlaws.com/platforms/kalshi/south-dakota.

APA

Prediction Market Laws. (2026, October 22). Is Kalshi Legal in South Dakota?. https://predictionmarketlaws.com/platforms/kalshi/south-dakota

What South Dakota has done about Kalshi

June 12, 2026
Other development
South Dakota joined a 37-state coalition (36 states plus California) that filed an amicus brief in the Sixth Circuit supporting Ohio's enforcement position against Kalshi (date is the coalition announcement).
Source: California Attorney General press release

Court cases

We track no case between Kalshi and South Dakota.

The legal backdrop in South Dakota

State status: No public action foundWe found no public enforcement, litigation or enacted law. Pending bills may still be listed on the state's page.
Online sports betting: Retail onlySports betting only at Deadwood casinos and tribal venues; SJR 504 for a mobile betting ballot measure was deferred in a House committee in Feb 2026.
Federal appeals court: Eighth CircuitAppeal pending.
Who regulates: South Dakota Commission on Gaming; South Dakota Attorney General
Laws and bills: None specific to prediction markets

Using Kalshi in South Dakota

Minimum age: 18
Identity checks: Kalshi requires legal name, date of birth and a residential address (no commercial addresses or PO boxes) that match a government ID. It asks for a live in-app photo of a driver's license or passport. It may also ask for proof of address, employment information or source of funds. It may request a Social Security number at any point after signup, which it uses for identity verification and tax reporting; an SSN is not required to deposit. (Help articles updated June 30 and August 25, 2026.) Source
Tax forms: Kalshi says users who meet IRS reporting thresholds get Form 1099-INT (interest), 1099-MISC (credits and rewards), 1099-B (proceeds from crypto transfers) and 1099-DA (digital asset reporting from ZeroHash). The forms appear under Tax Info in the Account tab, and some are emailed through Zenwork. Kalshi gives no dollar thresholds or issue dates. Trading profit-and-loss statements are in the documents tab (help article updated June 22, 2026). SourceWhat the platform says it reports; not tax advice.

Other platforms in South Dakota

KalshiNo restriction found
Polymarket USNo restriction found
Gemini PredictionsNo restriction found
RobinhoodNo restriction found
Crypto.comNo restriction found
CoinbaseNo restriction found
WebullNo restriction found
DraftKings PredictionsOffered
FanDuel PredictsOffered
UnderdogOffered
PrizePicksOffered
Fanatics MarketsOffered

Questions people ask

Is Kalshi legal in South Dakota?: Kalshi does not publish a list of states where it is unavailable, and we found no court order, regulator action or Kalshi notice that stops it from serving South Dakota as of Oct. 22, 2026. South Dakota has one public action on record that names Kalshi. The latest (June 12, 2026): South Dakota joined a 37-state coalition (36 states plus California) that filed an amicus brief in the Sixth Circuit supporting Ohio's enforcement position against Kalshi (date is the coalition announcement). This summarises public actions; it is not legal advice.
Has South Dakota sued Kalshi or ordered it to stop?: Not that we have found. We have no cease-and-desist letter, state lawsuit, court order or settlement in South Dakota that names Kalshi, as of Oct. 21, 2026.
How old do you have to be to use Kalshi in South Dakota?: 18. That is Kalshi's minimum age, and it lists no different rule for South Dakota.
Is sports betting legal in South Dakota?: Retail only. Sports betting only at Deadwood casinos and tribal venues; SJR 504 for a mobile betting ballot measure was deferred in a House committee in Feb 2026.
Which court will decide whether South Dakota can regulate Kalshi?: Federal appeals from South Dakota go to the Eighth Circuit, where an appeal on the question is pending. 3 petitions now ask the U.S. Supreme Court to settle the question nationally.