--- title: "Supreme Court Review Threatens Prediction Market Tax Exemptions" description: "Robinhood, Kalshi, and Crypto.com face state responses by Dec. 7 as high-court appeals put federal excise taxes on the line." url: https://basisdesk.news/news/supreme-court-prediction-market-tax-bill-robinhood-kalshi published: 2026-11-13T13:01:15.621Z modified: 2026-11-13T13:01:15.621Z section: Regulation & Policy author: Basis Desk Newsroom (AI-generated, source-verified) sentiment: bearish tickers: [] tags: [prediction-markets, supreme-court, robinhood, kalshi, crypto-com, taxes] license: Quote with attribution to Basis Desk (basisdesk.news). Not financial advice. --- # Supreme Court Review Threatens Prediction Market Tax Exemptions Robinhood, Kalshi, and Crypto.com face state responses by Dec. 7 as high-court appeals put federal excise taxes on the line. ## At a glance - **What happened:** Robinhood, Kalshi, and Crypto.com face a Dec. 7 Supreme Court response deadline in state gambling disputes that threaten their federal wagering tax exemptions. - **Why it matters:** An adverse ruling affirming state gambling authority could expose operators to federal excise taxes, potentially making sports event contracts uneconomical. - **Who is affected:** Prediction market operators, including Robinhood Derivatives, Kalshi, and Crypto.com, along with US event contract traders. - **Takes effect:** Dec. 7 - **What's next:** Nevada and New Jersey must file their Supreme Court appeal responses by Dec. 7. - **Status:** court-ruling - **Primary source:** [Supreme Court to decide tax bill for prediction market operators](https://protos.com/supreme-court-to-decide-tax-bill-for-prediction-market-operators/) — protos.com ## Key points - Supreme Court response deadlines in prediction market appeals from Robinhood, Kalshi, and Crypto.com are set for Dec. 7. - Operators do not collect federal wagering excise taxes, arguing peer-to-peer event markets do not constitute taxable bets under federal code. - Robinhood warned in an Oct. 28 filing that an unfavorable tax ruling could make its event contracts commercially uneconomical. ## Editorial remark - **Context:** Prediction market platforms expanded rapidly under CFTC oversight frameworks while arguing that exchange-matched event contracts fall outside traditional state gambling definitions. - **Impact:** If the Supreme Court finds platforms subject to state gambling statutes, operators could face retroactive or ongoing federal wagering excise taxes, threatening product unit economics. - **Watch:** State response filings are due on Dec. 7, with Supreme Court decisions on petitions or substantive questions potentially arriving in December or January. Prediction market operators face an imminent test before the US Supreme Court that could determine whether their sports and event contracts trigger federal wagering taxes [1]. State responses in appeals involving Robinhood, Kalshi, and Crypto.com are due on Dec. 7, setting up potential rulings over whether their offerings represent regulated commodities or taxable gambling [1]. Robinhood asked the Supreme Court on Sept. 10 to review an appellate loss in the Ninth Circuit against the Nevada Gaming Commission [1]. Crypto.com's derivatives unit filed a similar petition on Sept. 11 following its own legal defeat in Nevada [1]. Meanwhile, New Jersey petitioned the court on Sept. 2 to overturn Kalshi's victory in the Third Circuit [1]. All three matters carry a synchronized response deadline of Dec. 7 [1]. The disputes arrive amid broader jurisdictional friction examined in [how prediction markets are regulated in the US](https://basisdesk.news/news/prediction-markets-regulation-cftc-states). ## Unremitted Excise Taxes and State Preemption The court battles carry direct tax implications for event contract platforms [1]. Under Section 4401 of the Internal Revenue Code, authorized wagers face a 0.25% federal excise tax [1]. Robinhood, Kalshi, and Crypto.com have not collected or remitted this wagering excise tax, arguing that their platforms match peer-to-peer trades rather than acting as a house taking taxable wagers [1]. Robinhood disclosed in an Oct. 28 regulatory filing that Robinhood Derivatives has not collected federal excise tax on event contracts because it considers them exempt [1]. The company warned in the filing that an adverse determination could prove material and render event contracts uneconomical [1]. Operators have also made local concessions to stave off enforcement; Robinhood agreed on Oct. 26 to suspend new sports contracts in Ohio while its legal challenges proceed [1]. While the Supreme Court is addressing whether state gambling laws apply to prediction markets rather than ruling directly on tax code preemption, a ruling favoring state jurisdiction would weaken the platforms' stance that their products are exempt from gambling classifications [1]. New York University tax researchers cited in the proceedings noted that even if Commodity Futures Trading Commission regulations pre-empt state gambling laws, federal tax duties are not necessarily superseded [1]. ## FAQ **Why do prediction market platforms argue they are exempt from federal wagering taxes?** Operators argue they act as marketplaces matching peer-to-peer trades rather than acting as a traditional house accepting taxable wagers under federal tax law. **What is the key upcoming date for the Supreme Court cases?** Responses from states including Nevada and New Jersey are due on Dec. 7, after which the Supreme Court will determine whether to address the appeals. ## Sources 1. [Supreme Court to decide tax bill for prediction market operators](https://protos.com/supreme-court-to-decide-tax-bill-for-prediction-market-operators/) — protos.com, 2026-11-13 --- Basis Desk Newsroom · AI-generated, source-verified · https://basisdesk.news/about/how-we-use-ai