Prediction Market Fees Explained

Prediction markets are usually cheaper than a bookmaker, but "cheaper" is not "free". The costs arrive in five places and only two of them appear on a fee page.

1. Trading fees and commission

Models vary by venue. Some charge a per-contract taker fee and pay a rebate to makers who post resting orders. Betting-exchange style venues take a percentage commission on net winnings in each market. Some on-chain platforms charge nothing to trade and earn only on settlement or spread. A 2% commission on winnings and a 1% fee on every trade are very different animals if you turn a position over ten times.

2. The spread

The gap between buying and selling is a real cost even though no one invoices you for it. A 3-cent spread on a 50-cent contract is a 6% round trip — bigger than almost any headline fee on the market. In high-volume books the spread is a cent or less; in thin ones it can dwarf everything else.

3. Settlement and withdrawal

Some venues take a slice of winnings at resolution. Bank withdrawals may be free above a threshold and charged below it; card withdrawals often carry a fee; crypto withdrawals pay a network fee that has nothing to do with the platform.

4. Funding costs

Currency conversion when you deposit in one currency and trade in another, card deposit fees, stablecoin bridge costs, and gas on on-chain venues where every order can be a transaction. On busy chains gas alone can make small trades pointless.

5. Time

Money locked in a market resolving in eighteen months is money not earning anything. On long-dated contracts that opportunity cost is a genuine part of the price, and it is why distant markets trade slightly below their honest probability.

Working out what a trade really costs

Add the fee you pay to enter, half the spread on each side, the fee or commission on the way out or at settlement, and any withdrawal cost spread across your activity. On a market you intend to hold to resolution, the spread is paid once. On a market you plan to trade actively, it is paid every single time.

Practical ways to pay less

• Post limit orders and earn maker rebates where they exist instead of crossing the spread.
• Concentrate on deep books; a cheaper fee on a thin market is a false economy.
• Batch withdrawals rather than taking money out weekly.
• On crypto venues, watch the network fee before placing small orders.
• Compare total cost, not the advertised rate — our comparison tool lists fees side by side.