Polymarket has introduced deposit limits, self-exclusion lists, and addiction support measures. According to Odaily, users can set deposit limits that cannot be revoked immediately, or add themselves to temporary or permanent self-exclusion lists to suspend platform use.

Polymarket also partnered with online gambling addiction treatment provider Birches Health to offer mental health resources for users showing compulsive financial trading behavior. Global Head of Safety Malea Otranto said the company will track use of the tools and may adjust them based on results.

Prediction markets in the U.S. are classified as CFTC-regulated financial markets and do not have to follow consumer protection rules written by states for sports betting platforms. TickerTracker data shows that sports markets and parlay trading accounted for more than 98% of Polymarket's U.S. platform trading volume this month. New York state has sued Polymarket seeking to shut down its business, while Polymarket has denied wrongdoing and filed a countersuit in federal court.