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Polymarket has enabled taker fees on 15-minute crypto markets, 5-minute crypto markets, NCAAB (college basketball), and Serie A markets. These fees fund a Maker Rebates program that pays daily USDC rebates to liquidity providers.

Why Maker Rebates

Sports markets benefit from the same dynamics as crypto markets. When liquidity is deeper:
  • Spreads tend to be tighter
  • Price impact is lower
  • Fills are more reliable
  • Markets are more resilient during volatility
Maker Rebates incentivize consistent, competitive quoting so everyone gets a better trading experience.

How Maker Rebates Work

  • Paid daily in USDC: Rebates are calculated and distributed every day.
  • Performance-based: You earn based on the share of liquidity you provided that actually got taken.

Eligibility

Place orders that add liquidity to the book and get filled (i.e., your liquidity is taken by another trader).

Payment

Rebates are paid daily in USDC, directly to your wallet.

Funding

Maker Rebates are funded by taker fees collected in eligible markets. A percentage of these fees are redistributed to makers who keep the markets liquid. The rebate percentage differs by market type.
Market TypePeriodMaker RebateDistribution Method
15-Min CryptoJan 19, 2026+20%Fee-curve weighted
5-Min CryptoFeb 12, 2026+20%Fee-curve weighted
Sports (NCAAB, Serie A)Feb 18, 2026+25%Fee-curve weighted
Polymarket collects taker fees in eligible markets (15-minute crypto, 5-minute crypto, NCAAB, and Serie A). The rebate percentage is at the sole discretion of Polymarket and may change over time.

Fee-Curve Weighted Rebates

Rebates are distributed using the same formula as taker fees. This ensures makers are rewarded proportionally to the fee value their liquidity generates. For each filled maker order:
fee_equivalent = C × p × feeRate × (p × (1 - p))^exponent
Where C = number of shares traded and p = price of the shares. The fee parameters differ by market type:
ParameterSports (NCAAB, Serie A)5-Min & 15-Min Crypto
Fee Rate0.01750.25
Exponent12
Your daily rebate:
rebate = (your_fee_equivalent / total_fee_equivalent) * rebate_pool
Totals are calculated per market, so you only compete with other makers in the same market.

Taker Fee Structure

Taker fees are calculated in USDC and vary based on the share price. However, fees are collected in shares on buy orders and USDC on sell orders. Fees are highest at 50% probability and lowest at the extremes (near 0% or 100%).

Fee Table

PriceTrade ValueFee (USDC)Effective Rate
$0.01$1$0.000.00%
$0.05$5$0.0030.06%
$0.10$10$0.020.20%
$0.15$15$0.060.41%
$0.20$20$0.130.64%
$0.25$25$0.220.88%
$0.30$30$0.331.10%
$0.35$35$0.451.29%
$0.40$40$0.581.44%
$0.45$45$0.691.53%
$0.50$50$0.781.56%
$0.55$55$0.841.53%
$0.60$60$0.861.44%
$0.65$65$0.841.29%
$0.70$70$0.771.10%
$0.75$75$0.660.88%
$0.80$80$0.510.64%
$0.85$85$0.350.41%
$0.90$90$0.180.20%
$0.95$95$0.050.06%
$0.99$99$0.000.00%
The maximum effective fee rate is 1.56% at 50% probability. Fees decrease symmetrically toward both extremes.

Fee Precision

Fees are rounded to 4 decimal places. The smallest fee charged is 0.0001 USDC. Anything smaller rounds to zero, so very small trades near the extremes may incur no fee at all.

Which Markets Are Eligible

The following market types have taker fees enabled and are eligible for maker rebates:
  • 15-minute crypto markets
  • 5-minute crypto markets
  • NCAAB (college basketball) markets (starting February 18, 2026 for new markets)
  • Serie A markets (starting February 18, 2026 for new markets)
All other markets remain fee-free.

FAQ

Place orders that add liquidity to the book and get filled (i.e., your liquidity is taken by another trader).
Daily, in USDC.
Rebates are proportional to your share of executed maker liquidity in each eligible market. Totals are calculated per market, so you only compete with other makers in the same market.
Taker fees collected in eligible markets are allocated to the maker rebate pool and distributed daily.
15-minute crypto markets, 5-minute crypto markets, and starting February 18, 2026, NCAAB and Serie A markets.
No. Fees apply only to 15-minute crypto, 5-minute crypto, NCAAB, and Serie A markets. All other markets remain fee-free.

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