Polymarket is extending its fees to the sports market, starting February 18th, and will charge fees for NCAA and Italian Serie A events.

Rodrigo, an official from Polymarket, announced on Discord that the fee structure will be extended to the NCAA (College Basketball) and Serie A (Italian Football League) markets. The fee structure is the same as the "15-minute cryptocurrency price fluctuation market," where the taker pays the fee and the maker receives a rebate. However, the coefficients are different—the fee rate is 0.0175, the index is 1, and the maker receives a 25% rebate, resulting in lower overall costs. Starting at midnight UTC on Wednesday, February 18, 2026, all new NCAA and Serie A events created after that time will be subject to the new fee structure. Existing events will not be affected. The first rebate will be issued at midnight UTC on February 19.