Polymarket Fee Reform Takes Effect March 30, Biggest Impact on Crypto Trading

Prediction Market Platform Polymarket Announces Expansion of Trading Fees to Nearly All Market Categories Starting March 30, Previously Only Charged on Cryptocurrency and Sports Contracts. The New Fee Structure Features the Highest Rates in Cryptocurrency Markets, Increasing from 1.56% to 1.8%; Sports Betting Fees Remain the Lowest at 0.75%.

New Fee Structure: Overview of Differences by Market Category

(Source: Polymarket)

Polymarket uses a probability-based floating fee model, where rates are not fixed commissions but dynamically adjusted based on the event’s probability of occurrence. When an event’s chance of winning approaches 50%, the fee peaks; as the outcome becomes more certain, the fee gradually approaches zero.

Under this fee adjustment, the peak rates for each category are as follows:

Cryptocurrency Markets: From 1.56% to 1.8%, the highest among all categories

Sports Betting Markets: From 0.44% to 0.75%, the lowest among all categories

Politics, Finance, Economics, Technology, Culture, Weather, etc.: Estimated between 1% and 1.56%, previously no trading fees were charged for these categories

For example, a $50 bet with a 50% chance of winning in sports would see the fee increase from $0.22 to $0.38. In the same conditions, cryptocurrency fees increase even more significantly, directly squeezing the actual earnings of frequent traders.

New Referral Program and Market Integrity Regulations Announced Simultaneously

Referral Program Structure

Polymarket is launching a referral program targeting high-volume traders, with an application threshold of over $10,000 in total trading volume. Referrers can earn 30% of commissions generated by directly referred users within 180 days of registration, and 10% from indirectly referred users. Rewards have no cap and are automatically distributed daily at midnight (UTC).

Market Integrity Rules Update

Polymarket has also updated its market integrity rules for both its international platform and the US Commodity Futures Trading Commission (CFTC)-regulated platform. The new rules explicitly prohibit three types of conduct: trading based on stolen confidential information, using illegal insider information to establish positions, and participation by individuals who can directly influence event outcomes. Users can report suspicious activities via a newly established market integrity page.

These comprehensive adjustments indicate that Polymarket is gradually aligning with the regulated financial trading platform model, consistent with the current trend of prediction markets being closely monitored by traders and regulators.

Frequently Asked Questions

Are Polymarket’s fees fixed?

No. Polymarket uses a probability-based floating fee model, where rates dynamically adjust with the event’s winning probability, peaking at 50%, and decreasing toward zero as the outcome becomes more certain.

Why are cryptocurrency market fees higher than other categories?

Polymarket has not publicly disclosed the specific basis for differential pricing. Observing the fee structure, the mid-range fee in cryptocurrency markets (1.8%) is significantly higher than in sports betting (0.75%), possibly related to liquidity characteristics or trading frequency in crypto markets.

Which regulatory agency oversees Polymarket’s US platform?

Polymarket’s prediction markets in the US are regulated by the Commodity Futures Trading Commission (CFTC). The recent market integrity rule updates apply to both its international platform and the CFTC-regulated US platform.