Fees
Fee structure across Polymarket and Kalshi
Overview
When you trade on Vezta, fees are determined by the underlying exchange where your order is executed. Vezta routes your orders to Polymarket or Kalshi based on which offers the best available price, and the applicable fee structure depends on where the trade settles.
Polymarket Fees
Polymarket uses a Central Limit Order Book (CLOB) with a maker/taker fee model:
| Fee Type | Rate | Description |
|---|---|---|
| Maker | 0% | Orders that add liquidity to the book (limit orders that rest on the book) |
| Taker | Varies | Orders that remove liquidity (market orders or limit orders that fill immediately) |
Polymarket's taker fee varies by market and is typically in the range of 1-2%. Maker orders that add liquidity to the order book are generally free.
Gas Fees
Polymarket operates on the Polygon blockchain. While order placement through the CLOB API is off-chain (no gas cost), settlement and fund transfers may involve minimal Polygon gas fees. These are typically fractions of a cent.
Kalshi Fees
Kalshi charges fees on a per-contract basis:
| Fee Type | Rate | Description |
|---|---|---|
| Trading fee | Per contract | Applied when you buy or sell contracts |
| Settlement fee | $0.00 | No fee on market resolution |
Kalshi's exact fee schedule depends on the contract type and your account tier. Higher-volume traders may qualify for reduced fee rates.
Vezta Platform Fees
Vezta currently does not charge any additional platform fees on top of the underlying exchange fees. The aggregation layer, smart routing, analytics, and all platform features are free to use.
Vezta acts as an aggregation and execution layer. You pay only the fees charged by the underlying exchange (Polymarket or Kalshi) where your trade executes. There are no hidden markups.
Fee Display
Before you confirm any trade, the order summary panel shows the estimated fee for that specific order. This includes:
- Fee amount in dollars
- Exchange where the order will execute
- Total cost including the trade amount plus fees
Precision and Accuracy
All financial values in Vezta -- including fees, balances, and PnL -- are computed using precise decimal arithmetic, never floating-point approximation. This ensures your fee calculations and portfolio values are accurate down to the cent.
Fee Considerations by Strategy
| Strategy | Fee Impact |
|---|---|
| Manual trading | Standard maker/taker fees per trade |
| Copy trading | Fees apply on each copied trade individually |
| Sniper orders | Standard fees when the sniper triggers |
| Counter trading | Standard fees on each counter trade |
| Limit orders | Typically qualify for lower maker fees on Polymarket |
Using limit orders when possible can help reduce your overall fee burden, since maker orders on Polymarket's CLOB generally have lower or zero fees compared to taker (market) orders.