Prediction Markets in Mississippi

Quick Verdict: Accessible Despite State Pressure

Mississippi is one of the most consequential states for prediction markets in 2026 because of its unusual gaming law structure: the state has legal in-person sports betting at licensed casinos along the Gulf Coast and Mississippi River, but mobile sports betting is restricted to on-property wagering only. Off-premises mobile sports betting remains illegal under state law. This "mobile gap" is exactly the kind of consumer demand that federally regulated prediction markets address — and it is also why the Mississippi Gaming Commission (MGC) has been one of the more aggressive state regulators on the issue.

The MGC issued cease-and-desist letters to Kalshi, Polymarket, and other prediction market operators in 2025, ordering them to stop accepting Mississippi customers. Kalshi contested the order and the matter is in active federal court litigation in Mississippi as of April 2026. As of this writing, no court has ordered Kalshi or other DCMs to geofence Mississippi residents, and the platforms remain accessible to MS residents 18+.

Mississippi's Mobile Gap and Why It Matters

Mississippi was one of the earliest US states to legalize sports betting after the Supreme Court↗'s 2018 PASPA decision, with retail sportsbooks opening at licensed casinos in August 2018. However, unlike most other early-launching states, Mississippi never extended legalization to off-premises mobile betting. To place a sports bet legally in Mississippi, you must be physically located on the property of one of the state's roughly 25 licensed casinos.

Multiple bills to legalize mobile sports betting have been introduced in the Mississippi Legislature since 2022 — most recently the 2025 House Bill 774 — but none have passed. The casino industry is divided on the issue (some operators support mobile expansion, others fear cannibalization of in-person traffic), and the legislative path has stalled repeatedly. The result: Mississippi residents who want to bet on sports without driving to a casino have historically had only offshore options — until federally regulated prediction markets provided a legal alternative.

The MGC Cease-and-Desist Letters

In 2025, the Mississippi Gaming Commission sent cease-and-desist letters to Kalshi, Polymarket, and other prediction market operators ordering them to stop offering sports event contracts to Mississippi residents. The MGC's position is that sports event contracts are functionally sports wagering under Mississippi Code Title 75, and that operators offering them to MS residents without a state casino license are operating illegally.

Kalshi contested the cease-and-desist by filing in federal court, arguing federal preemption under the Commodity Exchange Act↗. The case is in active discovery as of April 2026, with no preliminary injunction granted to either side. Mississippi's argument largely tracks the arguments advanced in Nevada and Maryland; Kalshi's defense tracks the arguments that prevailed in Tennessee, New Jersey, and Arizona.

The Mississippi case sits in the Fifth Circuit, which has not yet ruled on prediction market federal preemption questions. Industry observers consider the Fifth Circuit posture relatively uncertain — neither as DCM-friendly as the Third or Sixth Circuits nor as state-friendly as the Ninth or Fourth.

Mississippi's Established Casino-Based Sports Betting Market

Mississippi has 25+ licensed casinos operating retail sportsbooks, primarily clustered on the Gulf Coast (Biloxi, Gulfport) and along the Mississippi River (Tunica, Vicksburg, Greenville). Major operators include MGM Resorts (Beau Rivage in Biloxi), Penn Entertainment (Hollywood and 1st Jackpot), Boyd Gaming (IP Casino, Sam's Town), and Caesars (Horseshoe Tunica).

The state imposes an 8% tax on sports betting gross gaming revenue plus a 4% local tax. Total state and local sports betting tax revenue is modest — typically $5-7M per year — primarily because the on-property mobile restriction keeps overall handle low compared to states with off-premises mobile betting.

This established casino framework is why the MGC has taken a strong enforcement stance: prediction markets bypass the casino licensure and tax framework while serving the same consumer demand.

What Mississippi Residents Can Trade Right Now

Despite the MGC enforcement action, Mississippi residents 18+ currently have full access to the prediction market catalog because no court has ordered platforms to geofence MS residents:

• NFL, NBA, MLB, NHL, college football, college basketball — full sports contract catalog including New Orleans Saints (popular regionally given the Mississippi-Louisiana cultural proximity), Mississippi State Bulldogs, Ole Miss Rebels, and SEC↗ conference markets
• Politics — 2026 midterms, 2028 presidential, congressional control, individual federal and state races
• Economic data, crypto, culture, and weather — full catalog

SEC↗ football generates particularly strong MS-resident engagement on Kalshi, with Mississippi State and Ole Miss markets active throughout the fall season.

Risk Considerations for Mississippi Traders

Until the federal preemption case is resolved, MS traders should consider several risks:

1. Court order could halt sports access. A future federal or state court ruling could force platforms to geofence MS sports markets similar to Nevada's situation. This has not happened as of April 2026.
2. Open positions could be affected. If platforms are forced to suspend MS accounts mid-event, contracts may be settled at last traded price, voided, or held until resolution per the platform's terms.
3. Tax obligations apply regardless. Mississippi has a graduated state income tax with a top rate of 4.4%. Net gains are reportable.
4. VPN use does not work and is prohibited. Geofencing is enforced via IP and device location.

Best Platforms for Mississippi Residents

OG.com is our top pick for Mississippi in 2026. Crypto.com's CFTC-regulated sports-first prediction market combines a 4-leg parlay builder, social trading feed, and live in-game contracts — and new traders can earn up to $100 in bonuses with code RANKPREDICTS. Kalshi remains a strong runner-up for the deepest non-sports catalog and lowest published fees.

Polymarket US offers strong politics and crypto liquidity and is not subject to active MS enforcement litigation.

Robinhood provides Kalshi-routed contracts in the familiar Robinhood app for existing MS brokerage users.

DraftKings Predictions and FanDuel Predicts are particularly relevant in Mississippi because both companies' sportsbooks are not available off-premises in MS. The Predictions products give MS residents a sportsbook-style mobile interface for event contracts without needing to visit a casino.

How MS Compares to Neighboring States

Mississippi's regional context is interesting. Louisiana has full mobile sports betting (since 2022) but the LGCB has pressured operators on prediction market partnerships. Alabama has no legal sports betting and no DCM enforcement. Tennessee has full mobile sports betting and a federal court ruling protecting Kalshi. Arkansas has retail-only sports betting (similar to MS) but limited mobile and no DCM enforcement.

For MS residents who travel, Tennessee and Louisiana offer mobile sports betting alternatives — but only when physically located in those states (geofencing is real-time IP based).

Tax Considerations for Mississippi Residents

Mississippi has a graduated state income tax with a top rate of 4.4% (after recent tax reform reducing the rate from prior levels). Net gains from prediction market trading are taxable as ordinary income at federal level plus the MS state rate. Platforms issue 1099 forms when reporting thresholds are met.

Notably, Mississippi treats casino gambling winnings differently — state casino winnings are subject to a separate 3% non-refundable state withholding at the casino. Prediction market gains do not trigger this casino-specific withholding because they sit under federal derivatives reporting (1099) rather than state gaming reporting (W-2G/state withholding).

Outlook: Federal Court Decision Pending

The Mississippi federal preemption case is in active discovery with no preliminary injunction granted to either side as of April 2026. A substantive court ruling is likely in the second half of 2026, and either side will almost certainly appeal to the Fifth Circuit.

The Fifth Circuit's eventual ruling will be a significant data point in the broader federal preemption dispute. Combined with the existing Third Circuit↗ (NJ-favorable to Kalshi), Sixth Circuit (TN-favorable to Kalshi), Ninth Circuit (NV-pending appeal), and Fourth Circuit (MD-unfavorable to Kalshi), the federal circuit split is heading toward an inevitable Supreme Court↗ resolution.

For now, MS traders have access to the full prediction market catalog but should monitor case developments and avoid parking large balances on a single platform.