Polymarket Fee Calculator
How Polymarket fees work
Polymarket charges a taker fee at match time, computed as coefficient × price × (1 − price). The coefficient is set by the market category, so the same trade costs more in a crypto market than in sports, and the fee peaks at 50¢ — where price × (1 − price) is largest — and fades toward the 1¢ and 99¢ edges.
Only takers pay. A resting limit order that gets filled is a maker and pays nothing, and redeeming winning shares at resolution is free. Polymarket moved from a zero-fee model to this dynamic taker fee in 2026; the calculator uses the documented per-category coefficients.
Taker fee is charged at match time. Makers (resting limit orders) pay nothing, and redeeming winning shares at resolution is free.
Fee scales with price × (1 − price), so it peaks at 50¢ and fades toward the edges — a trade at 30¢ costs the same fee as one at 70¢. Hover a line for its value.
Fee rate by category
- Crypto
- 0.07≤1.75%
- Econ · Culture · Weather
- 0.05≤1.25%
- Politics · Finance · Tech
- 0.04≤1.00%
- Sports
- 0.03≤0.75%
- Geopolitics
- 00%
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Frequently asked
How much are Polymarket trading fees?
A taker fee, charged at match time as coefficient × price × (1 − price). The coefficient is set by the market category — 0.07 crypto, 0.05 economics/culture/weather, 0.04 politics/finance/tech, 0.03 sports, 0 geopolitics — so the effective fee tops out near 1.75% on a coin-flip crypto market and is lower elsewhere. Makers pay nothing. Polymarket fee docs
Do makers pay fees on Polymarket?
No. Only takers — orders that fill immediately against the book — pay a fee. A resting limit order that gets filled (a maker) pays nothing, and redeeming winning shares at resolution is also free.
Why is the fee highest at 50¢?
The fee scales with price × (1 − price), which peaks at 0.5 (50¢) and falls toward the 1¢ and 99¢ edges. The same shares cost the most in fees on a coin-flip market and the least on a near-certain one.
Did Polymarket fees change in 2026?
Yes — Polymarket moved from a zero-fee model to a dynamic taker fee in 2026, with the coefficient set per market category. Makers remain fee-free. This calculator uses the documented per-category coefficients.
Disclaimer: This calculator is an estimate for informational purposes only and does not constitute financial advice. Prediction markets carry risk; do your own research before committing capital.