Prediction market fees, side by side
What each platform says it charges, in its own words, with the same example worked out for every row: 100 contracts at 50¢. Fees change, so every row carries the date we checked it, and the operator’s own screen is final.
Most platforms charge a small fee each time an order fills, and many make it largest when a contract trades near 50¢ and smallest near 1¢ or 99¢. A few charge a flat amount per contract or a share of your winnings instead. Spreads and deposit fees are separate, so the fee in this table is not the whole cost of a trade.
| Platform | Trading fee, as the operator states it | 100 contracts at 50¢ | Deposits and withdrawals | Source and date checked |
|---|---|---|---|---|
| Kalshi | Taker: 0.07 × contracts × price × (1 − price), rounded up. Some markets carry a maker fee or a different multiplier. | $1.75 | No Kalshi fee for ACH in or out. Debit card deposits: up to 2%. Wire deposits: no Kalshi fee; your bank may charge. |
|
| Polymarket US | Taker: 0.0695 × contracts × price × (1 − price), rounded to the cent. Table tennis: 0.10. Large makers can earn a rebate. | $1.74 | Withdrawals: free, per Polymarket US. Deposits: PENDING. |
|
| Robinhood | Robinhood commission: 10% × price × (1 − price) per contract (5% with Gold), rounded up, capped at $0.01 a contract. Plus the exchange fee: $0.01 a contract per side on Kalshi products. | $2.00 | PENDING |
|
| Crypto.com | Sports and prediction singles: taker 0.07 × contracts × price × (1 − price); maker 0.0175 × the same. Crypto, FX, commodities and index contracts: $0.02 a contract. No fee at settlement. | $1.75 | PENDING |
|
| PredictIt | 10% of trading profits. | $5.00 on winning trades only | ACH deposits free; credit card deposits 3%. Withdrawals by ACH or check: 0%. 30-day hold after your first deposit. |
|
| DraftKings Predictions | A flat fee per contract that depends on price: $0.02 a contract from 30¢ to 94¢ on CDNA and DKeX markets, and $0.02 from 20¢ to 94¢ on CME markets. Lower near the ends. Includes the FCM commission and exchange fees. | $2.00 | PENDING |
|
| FanDuel Predicts | Two cents per dollar of potential payout, at checkout. The same fee applies if you cash out early. | $2.00 | PENDING |
|
| OG.com | Quick orders on most U.S. markets: 0.07 × contracts × price × (1 − price). Limit orders: 1.75% when the trade completes. Some financial categories: $0.02 a contract. | $1.75 | No OG.com fee for ACH or wire deposits, where available; your bank may charge. Withdrawals: PENDING. |
|
| Coinbase | PENDING | PENDING | PENDING |
|
| Fanatics Markets | $0.00034 to $0.02 a contract, set by price. Highest near 50¢. The order total is rounded up to the next cent. | $2.00 | ACH deposits free; debit card, Apple Pay, PayPal or Venmo deposits up to 2%. No fee on withdrawals to your payment methods. |
|
| Underdog | On Underdog Exchange: taker 0.07 × contracts × price × (1 − price); maker 0.0175 × the same; rounded to the cent. | $1.75 | PENDING |
|
| Novig | Pre-game straight trades: no fee. Live and futures trades: taker pays 0.06 × price × (1 − price) per contract. Makers pay nothing. Parlays: 0.10 × the same, built into the price. | Pre-game: $0. Live or futures taker: $1.50. | PENDING |
|
| ProphetX | Straight trades: 2% of net gains per market. Parlays: a separate parlay schedule. | $1.00 on winning trades only | PENDING |
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| Sporttrade | Not taking bets — no fee schedule to compare. | |||