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Hit uses a maker-taker model to encourage liquidity in the order book. Makers never pay trading fees. Only takers may pay a fee, and the applicable rate is shown before you trade.

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Maker vs Taker Fees

Maker A maker is a trader who adds liquidity to the order book by placing a limit order that doesn’t immediately match with an existing order. Makers pay no trading fees. Taker A taker is a trader who removes liquidity from the order book by placing an order that immediately matches with an existing order. This includes market orders and limit orders that cross the spread. Takers may incur fees that scale with market certainty.
Maker fees are always zero. The taker fee rate depends on the market’s category and is shown upfront on the trading ticket.

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Fee Rates by Category

The API returns taker and maker fee rates as decimals.

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How Taker Fees Scale

When a market has taker fees, the fee depends on the share price. For the same number of shares at the same price, a BUY and SELL have the same dollar-equivalent fee, but the fee is paid differently.
Here, p is the share price from 0.01 to 0.99. The API returns the taker fee rate as a decimal, such as 0.032. The SELL effective fee rate compares the USDC fee per share with that share’s $1 maximum payout.
The calculator, chart, and table mirror Hit’s smart-contract fee branches: BUY fees are charged on outcome-token proceeds and SELL fees are charged on collateral proceeds. Displayed values are rounded for readability; on-chain integer division rounds down to the asset’s smallest unit.
Buying Fees
  • At prices ≤ 50¢: The effective BUY fee rate equals the selected taker fee rate. At 0.032, a 100-share fill has a 3.2-share fee.
  • At prices > 50¢: Fees decrease as the outcome becomes more certain.
  • The fee is deducted from the shares you receive.
Selling Fees
  • The fee in USDC peaks at 50¢.
  • The USDC fee decreases symmetrically toward both 0¢ and 100¢.
  • The fee is deducted from the USDC proceeds you receive.

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Interactive 100-Share BUY and SELL Example

Choose a taker fee rate and share price to compare buying and selling the same 100 shares. The table shows $0.01, five-cent increments from $0.05 to $0.95, and $0.99.
The chart and table assume all 100 shares fill at one price. If an order fills at several prices, Hit calculates each fill separately and adds the fees.

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Multiple Price Levels

If your order fills at multiple prices (common with market orders), each portion is charged at its own price level. The final fee is the sum across all fills. The trading ticket shows an estimated fee before you confirm. The actual fee is calculated based on your final fill prices.

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Fee Transparency

All fees are shown on the trading ticket before you place any order:
  1. Taker fee rate for the market’s category.
  2. Estimated final fee based on your order.
  3. Net shares or proceeds after fees.
No fill, no fee: orders that don’t execute don’t incur any fees.

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Fee Strategy

Want to minimize fees?
  • Use limit orders that sit in the order book. Makers never pay trading fees.
  • Avoid trading at 50% where uncertainty and fees are highest.
Need immediate execution?
  • Market orders execute instantly and may incur taker fees.
  • The fee is shown before you confirm.