Has New Hampshire 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 New Hampshire that names Kalshi, as of Oct. 21, 2026.

How old do you have to be to use Kalshi in New Hampshire?

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

Is sports betting legal in New Hampshire?

Legal online. Lottery-run retail and mobile sports betting; mobile launched Dec. 30, 2019.

Which court will decide whether New Hampshire can regulate Kalshi?

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

NH · Kalshi · Checked Oct. 21, 2026

Is Kalshi legal in New Hampshire?

No restriction found New Hampshire: 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 New Hampshire as of Oct. 22, 2026.

New Hampshire has 2 public actions on record that name Kalshi. The latest (Oct. 7, 2026): New Hampshire's attorney general signed an Ohio-led amicus brief, joined by 38 other states and DC, asking the U.S. Supreme Court to grant New Jersey's petition in Flaherty v. KalshiEX (No. 26-299).

Federal appeals from New Hampshire go to the First 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 New Hampshire

Cite this page

Bluebook

Is Kalshi Legal in New Hampshire?, Prediction Market Laws (last updated Oct. 22, 2026), https://predictionmarketlaws.com/platforms/kalshi/new-hampshire.

APA

Prediction Market Laws. (2026, October 22). Is Kalshi Legal in New Hampshire?. https://predictionmarketlaws.com/platforms/kalshi/new-hampshire

What New Hampshire has done about Kalshi

Oct. 7, 2026
Other development
New Hampshire's attorney general signed an Ohio-led amicus brief, joined by 38 other states and DC, asking the U.S. Supreme Court to grant New Jersey's petition in Flaherty v. KalshiEX (No. 26-299).
Source: Ohio et al. amicus brief, U.S. Supreme Court No. 26-299
March 19, 2026
Other development
State officials told NHPR they had not pursued legal action and were monitoring cases elsewhere; the Lottery Commission director warned prediction markets could erode sports betting revenue.
Source: New Hampshire Public Radio

Court cases

We track no case between Kalshi and New Hampshire.

The legal backdrop in New Hampshire

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: Legal onlineLottery-run retail and mobile sports betting; mobile launched Dec. 30, 2019.
Federal appeals court: First CircuitAppeal pending.
Who regulates: New Hampshire Lottery Commission; New Hampshire Attorney General
Laws and bills: None specific to prediction markets

Using Kalshi in New Hampshire

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 New Hampshire

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 PredictionsNot offered
FanDuel PredictsOffered
UnderdogOffered
PrizePicksSports blocked
Fanatics MarketsOffered

Questions people ask

Is Kalshi legal in New Hampshire?: 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 New Hampshire as of Oct. 22, 2026. New Hampshire has 2 public actions on record that name Kalshi. The latest (Oct. 7, 2026): New Hampshire's attorney general signed an Ohio-led amicus brief, joined by 38 other states and DC, asking the U.S. Supreme Court to grant New Jersey's petition in Flaherty v. KalshiEX (No. 26-299). This summarises public actions; it is not legal advice.
Has New Hampshire 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 New Hampshire that names Kalshi, as of Oct. 21, 2026.
How old do you have to be to use Kalshi in New Hampshire?: 18. That is Kalshi's minimum age, and it lists no different rule for New Hampshire.
Is sports betting legal in New Hampshire?: Legal online. Lottery-run retail and mobile sports betting; mobile launched Dec. 30, 2019.
Which court will decide whether New Hampshire can regulate Kalshi?: Federal appeals from New Hampshire go to the First Circuit, where an appeal on the question is pending. 3 petitions now ask the U.S. Supreme Court to settle the question nationally.