Polymarket Fee Calculator
See exactly what you'll pay before placing a trade. Choose a market category, enter your dollar amount, and move the probability slider — the fee updates instantly. Geopolitics markets are always free.
$
%
1%50% — max fee99%
Taker Fee
$1.50000
Effective Rate
1.50%
Maker Fee
$0.00
Taker fees apply to market orders only. Limit orders are always free. 25% of taker fees in Sports markets are paid back to liquidity providers daily via Polymarket's Maker Rebates Program.
| Price | Trade Value | Fee (USDC) | Effective Rate |
|---|---|---|---|
| $0.01 | $1 | $0.03 | 2.97% |
| $0.05 | $5 | $0.14 | 2.85% |
| $0.10 | $10 | $0.27 | 2.70% |
| $0.20 | $20 | $0.48 | 2.40% |
| $0.30 | $30 | $0.63 | 2.10% |
| $0.40 | $40 | $0.72 | 1.80% |
| $0.50 | $50 | $0.75 | 1.50% |
| $0.60 | $60 | $0.72 | 1.20% |
| $0.70 | $70 | $0.63 | 0.90% |
| $0.80 | $80 | $0.48 | 0.60% |
| $0.90 | $90 | $0.27 | 0.30% |
| $0.95 | $95 | $0.14 | 0.15% |
| $0.99 | $99 | $0.03 | 0.03% |
Peak cost for Sports: $0.75 per 100 shares at 50% odds. Limit orders: free. Formula: C × 0.03 × p × (1 − p). Rates current as of April 2026.
How Polymarket Fees Work
Fees are not flat — they depend on both the market category and the current probability. The formula Polymarket uses is:
fee = C × feeRate × p × (1 − p)
The p × (1 − p) multiplier peaks at 50% probability and approaches zero near 1% or 99%. The closer an outcome is to certain, the cheaper the trade — you pay the most when the market is most uncertain.
All Categories (April 2026)
| Category | Fee Rate | Maker Rebate | Max Fee / 100 shares |
|---|---|---|---|
| Sports | 3.0% | 25% | $0.75 |
| Politics | 4.0% | 25% | $1.00 |
| Crypto | 7.2% | 20% | $1.80 |
| Finance | 4.0% | 25% | $1.00 |
| Economics | 5.0% | 25% | $1.25 |
| Culture | 5.0% | 25% | $1.25 |
| Weather | 5.0% | 25% | $1.25 |
| Tech | 4.0% | 25% | $1.00 |
| Mentions | 4.0% | 25% | $1.00 |
| Other / General | 5.0% | 25% | $1.25 |
| Geopolitics | — | — | Free |