The fees, taxes, and rules that move across Kalshi, Polymarket, Robinhood, and every prediction market. Dated, sourced, and explained with the math, so you always know what a trade actually costs.
Polymarket's Sports taker fee rose from 0.03 to 0.05 and the maker rebate fell from 25% to 15%, narrowing the gap with Kalshi. We run the new numbers.
FIFA World Cup 2026 sent combined Kalshi and Polymarket trading to $44.8 billion in June, up 75% from May. Here is the fee math on what that volume actually cost traders.
World.xyz went live July 1 as a fully on-chain, non-custodial prediction market inside Phantom wallet, listing Bitcoin direction and World Cup contracts with no disclosed protocol fee.
Kalshi filed a federal lawsuit June 25 to block Illinois from taxing prediction market wagers at 1.75%-3.5% and requiring a $15 million sportsbook license effective July 1.
Cboe Global Markets entered prediction markets on June 23, 2026, listing XSPBW and XSPBX binary options on the Mini-S&P 500. The contracts trade through Interactive Brokers now and roll out to Charles Schwab's 47 million accounts next.
A 50-plus group coalition including the AGA, tribal operators, and labor unions asked the Senate to amend the CLARITY Act to ban sports event contracts from CFTC-regulated prediction markets.
Kentucky enacted the first state excise tax on prediction market transaction fees. A platform coalition sued June 12 to block it before a July 2026 restriction takes effect.
ADI Predictstreet, FIFA's official prediction market partner, reached 23 US states on June 8 via a Fanatics Markets hub. The flat $0.02 fee runs higher than Kalshi and Polymarket for balanced contracts.
The CFTC's first formal prediction-market rulemaking creates a 3-part public interest test for event contracts and explicitly bans injury props and play-call contracts.
Kalshi's CFTC-approved BTC and ETH perpetual futures went live June 3-4. Here is what the product is, what it costs, and how it compares to prediction market fees.
Judge Woodbury granted Nevada's preliminary injunction against Polymarket on May 29. The state has now restricted all five major prediction market platforms from offering sports, election, and entertainment contracts to state residents.
Polymarket's new tiered rebate cuts taker fees by 3% to 50% based on 30-day weighted volume, paid daily in pUSD. Here is the full tier table and what each level actually saves.
Late May 2026 brought a wave of prediction-market lawsuits and split appeals-court rulings. Here is the state of play and what it means for your account.
No 1099 does not mean no tax. Here is what Kalshi, Polymarket, and Robinhood actually report for 2026, and why the reporting gap is yours to close.
Kalshi's fee schedule, effective February 5, 2026, keeps the per-contract formula but adds volume-based taker tiers. We run the numbers on what you actually pay.