Understanding Polymarket Fees and Costs (2025 Complete Guide)
One of Polymarket's biggest advantages over traditional betting platforms is its fee structure. Here's everything you need to know about the costs of trading on Polymarket.
The Big Picture: Polymarket Has Zero Trading Fees
Unlike traditional sportsbooks or even competitor prediction markets, Polymarket charges zero trading fees on its global platform. You read that right – the platform doesn't take a cut of your trades.
This is a massive competitive advantage:
| Platform | Trading Fee |
|---|---|
| Polymarket (Global) | 0% |
| Polymarket US | 0.01% |
| Kalshi | ~1.2% |
| PredictIt | 10% on profits |
| Sportsbooks | Built into odds (5-10%+) |
Costs You Will Pay
While Polymarket itself doesn't charge fees, there are costs to be aware of:
1. Deposit/Withdrawal Costs
Polymarket charges nothing for deposits or withdrawals. However, intermediaries may charge:
| Method | Approximate Cost |
|---|---|
| Crypto.com (Polygon) | $0.08 flat |
| Coinbase (Polygon) | Free |
| Ethereum bridge | $3 or 0.3% |
| MoonPay | 3.5% + fees |
| Credit card via MoonPay | 4.5% + fees |
2. Network Gas Fees (Polygon)
Every trade on Polymarket requires a small Polygon network fee:
- Typically fractions of a cent per transaction
- You need MATIC tokens to pay gas
- Many deposit methods include free MATIC for new users
- Gas fees are so low most traders never think about them
3. The Spread (Liquidity Provider Fee)
The bid-ask spread is where liquidity providers earn their return. This isn't a fee to Polymarket – it goes to other users providing liquidity.
Example:- Buy price: 52¢
- Sell price: 48¢
- Spread: 4¢ (about 8%)
On liquid markets, spreads can be as tight as 1-2%. On thin markets, 5-10% or more.
Market makers earned at least $20 million providing liquidity on Polymarket in 2024.Polymarket US: The New Regulated Exchange
In December 2025, Polymarket is launching its regulated US exchange after acquiring QCEX (a CFTC-licensed clearinghouse) for $112 million.
Polymarket US Fee Structure:
- 0.01% trading fee (one basis point)
- That's $0.01 on a $100 trade
- $0.10 on a $1,000 trade
This makes Polymarket US 100x cheaper than Kalshi (which averages 1.2% fees).
"All fees are rounded to the nearest basis point (0.01%)," according to the fee schedule. "The minimum fee for any trade is 1 basis point ($0.0001)."
Hidden Costs to Watch
1. Opportunity Cost of Capital
Money locked in pending markets can't be used elsewhere. A 3-month market ties up your capital.
2. Unfavorable Resolution
Some markets resolve in unexpected ways due to ambiguous wording. Always read resolution criteria carefully.
3. Slippage on Large Orders
Large orders can move the market against you. Use limit orders for significant positions.
How to Minimize Costs
1. Use Polygon-Native Deposits
Send USDC directly over Polygon from Coinbase or Crypto.com – near zero fees.
2. Trade Liquid Markets
Higher volume = tighter spreads = lower effective costs.
3. Use Limit Orders
Avoid market orders that pay the spread. Set your price and wait.
4. Batch Your Trades
If making multiple trades, combine them to minimize gas transactions.
5. Consider Timing
Network congestion affects gas fees. Trade during off-peak hours for cheaper transactions.
Comparison: Why Zero Fees Matters
$10,000 Trading Volume Example:
| Platform | Fees Paid |
|---|---|
| Polymarket Global | $0 |
| Polymarket US | $1 |
| Kalshi | $120 |
| PredictIt | Up to $1,000 |
Over time, fee differences compound significantly. A trader doing $100,000/year in volume saves over $1,000 on Polymarket vs Kalshi.
FAQs
Q: Why doesn't Polymarket charge fees?A: Their business model relies on driving volume and platform growth. They may monetize through other means in the future.
Q: Will fees ever increase?A: For the global platform, there's no indication. The US exchange has its 0.01% structure set.
Q: Are there withdrawal limits?A: No, you can withdraw any amount at any time.
Q: Do I pay taxes on profits?A: Yes, prediction market profits are typically taxable income. Consult a tax professional for your jurisdiction.
The Bottom Line
Polymarket's zero-fee global platform is genuinely one of its strongest features. Combined with the upcoming 0.01% US exchange, it offers the most cost-effective way to trade prediction markets.
The main costs you'll face are deposit fees (avoidable with the right method) and spreads (minimized by trading liquid markets). For active traders, these savings add up to thousands of dollars annually.
