> There are no fees on Polymarket

"Currently, small fees apply to Crypto and Sports markets.

Starting March 30, 2026, this will expand to include other categories like Finance, Politics, Economics, Culture, Weather, and Tech" [1].

More critically, Polymarket doesn't pay interest on deposits. (Kalshi does.)

[1] https://help.polymarket.com/en/articles/13364478-trading-fee...