[Polymarket Expands Fee Scope: Transaction Fees to Apply to More Markets Starting March 30] Odaily Seer monitoring shows that Polymarket's official documentation indicates the platform will adjust its fee mechanism starting March 30, 2026. In addition to the existing Crypto and Sports categories, new market categories such as Finance, Politics, Economics, Culture, and Weather will be included in the taker fee scope. The new fee rates will be calculated using a dynamic formula, with peak values concentrated around a 50% probability. The highest effective fee rate for Crypto markets is approximately 1.80%, while Finance, Politics, and Tech markets are around 1.00%. Currently, only Crypto and Sports markets are subject to transaction fees, while geopolitical and global event markets remain fee-free. The platform stated that fees will be used for Maker Rebate incentives to encourage market makers to provide liquidity. Fees will be denominated in USDC, with buy orders charged in the form of shares and sell orders charged in USDC. Odaily Seer will continue to monitor prediction markets, observing changes before pricing.