Polymarket is a decentralized prediction market where users buy and sell contracts based on the outcome of real-world events. Before placing your first trade, it helps to understand exactly what fees you’ll pay – and what you’ll get in return.
- Market orders (taker): Small variable fee (~0.1%–0.7%) depending on contract probability
- Limit orders (maker): Earn rebates paid daily in USDC
- Gas fees: Typically under $0.01 per transaction on Polygon
- Deposits/withdrawals: No platform fees
Polymarket is one of the lowest-cost prediction markets available, especially for traders who use limit orders.
This guide breaks down every cost associated with trading on Polymarket, from transaction fees to gas, and compares them to competing platforms.
Does Polymarket Charge Fees?
Yes – but for most of its history, it didn’t. Polymarket originally operated as a zero-fee platform to attract users and build liquidity. It has since introduced a fee structure that applies to market orders (called “taker” trades). Limit orders, by contrast, can actually earn a rebate.
The result is one of the lowest-cost fee structures in the prediction market space.
The Two Types of Fees on Polymarket
1. Taker Fees (Market Orders)
When you place a market order – buying or selling at the current best available price – you are a “taker.” You’re removing liquidity from the order book, and Polymarket charges a small fee for this.
The fee is not flat. It varies based on the implied probability of the contract you’re trading. Contracts priced near 50 cents (representing roughly even odds) carry the highest fees, because those markets have the most uncertainty and require the most liquidity support. Contracts priced near the extremes – close to $0.01 or $0.99 – carry lower fees, because those outcomes are relatively clear-cut and easy to price.
In practice, fee rates are low relative to other financial platforms. Sports and macro event markets carry the smallest fees. Higher-frequency markets (such as short-duration crypto price contracts) carry slightly higher fees, but these are still modest compared to traditional financial products.
To make this more concrete, consider a simple example:
If you place a $1,000 market order on a contract priced around 55%, your fee will typically fall somewhere between $3 and $7 depending on current liquidity conditions. Lower-probability or near-certain contracts will usually cost less.
While the exact rate varies, the key point is that fees remain small relative to position size — especially compared to traditional betting or financial platforms.
2. Maker Rebates (Limit Orders)
When you place a limit order – setting the specific price at which you’re willing to buy or sell – you are a “maker.” You’re adding liquidity to the order book, and Polymarket rewards this behavior with a rebate.
Makers receive a portion of the fees generated by the takers who fill their orders. The rebate is paid out daily in USDC directly to your connected wallet.
This structure means active traders who use limit orders can offset – or even exceed – their trading costs through rebates alone.
Gas Fees: The Hidden (But Tiny) Cost
Because Polymarket runs on the Polygon blockchain, every transaction involves a small network fee called “gas.” These fees go to the network validators, not to Polymarket.
These low costs are possible because Polymarket operates on Polygon, a network designed for fast and inexpensive transactions compared to Ethereum.
The good news: Polygon gas fees are extremely cheap compared to Ethereum. A typical trade costs less than $0.01 in gas. Depositing or withdrawing funds may cost slightly more depending on network congestion, but generally remains under $0.05.
Gas fees are denominated in MATIC (Polygon’s native token), though the amounts involved are small enough that most users rarely notice them.
How to Minimize Fees on Polymarket
While Polymarket’s fees are already low, there are a few simple ways to reduce your costs even further:
Use limit orders whenever possible
Limit orders qualify for maker rebates, meaning you can earn back a portion of the fees paid by other traders. Over time, this can significantly reduce — or even eliminate — your net trading costs.
Avoid mid-probability entries when possible
Contracts priced near 50% tend to carry the highest taker fees. Entering positions closer to price extremes (when it makes sense strategically) can reduce costs.
Trade in liquid markets
Markets with higher volume typically have tighter spreads and more efficient pricing, which helps reduce both fees and slippage.
Be patient with execution
Rushing into market orders increases costs. Placing limit orders near the current price and waiting for fills is often more cost-effective.
How Polymarket Fees Compare to Competitors
Polymarket’s fee structure becomes especially clear when compared to regulated U.S. alternatives.
| Platform | Fee Type | Effective Cost on a $10,000 Winning Trade |
|---|---|---|
| Polymarket | Taker fee on entry | ~$25 |
| Kalshi | Fee on entry | ~$350 |
| PredictIt | 10% profit fee + 5% withdrawal fee | ~$1,450 |
The difference is significant. PredictIt in particular imposes a 10% fee on any profits, plus a 5% fee on withdrawals – costs that compound and make profitable trading considerably harder. Kalshi charges fixed fees that are substantially higher than Polymarket’s variable rate at most price points.
Polymarket has no fees on withdrawals and no percentage taken from profits.
How Fees Affect Your Profitability
For casual traders placing occasional bets on major events, Polymarket’s fees will rarely be noticeable. On a $100 trade in a sports market, you might pay $0.25 or less.
For active traders making many trades, fees accumulate. The most cost-effective approach is to use limit orders wherever possible to earn maker rebates, effectively reducing your net trading cost.
For traders who provide liquidity at scale – placing limit orders near the current market price and waiting for retail traders to fill them – the rebate structure can itself become a source of income, independent of whether any individual prediction is correct.
Note on Risk and Costs
Fees are only one part of the equation when trading on Polymarket. Market liquidity, execution quality, and price movement all affect your overall profitability.
Even with low fees, frequent trading or poor entry timing can lead to losses. Understanding how orders are filled — and when to use market vs. limit orders — is just as important as minimizing fees.
Summary
- Market orders (taker): Variable fee based on contract probability; lowest near 0% and 100%, highest near 50%
- Limit orders (maker): Earn a daily rebate paid in USDC, funded by taker fees
- Gas fees: Negligible on Polygon – typically under $0.01 per trade
- No profit fees, no withdrawal fees
- Significantly cheaper than major regulated U.S. competitors
If you’re comparing prediction market platforms on cost alone, Polymarket is among the most affordable options available – particularly for traders who use limit orders strategically. Understanding fee structures is important because even small percentages compound over frequent trades.
