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What will this trade cost?

Fee Calculator

Polymarket charges takers only. The fee follows a curve that peaks at 50¢ and fades to zero at the extremes — fee = shares × rate × price × (1 − price). Apps that route your order can add a builder fee on top.

Market category
FEE DOCS
Shares (contracts)
Share price (yes)
10¢
1¢50¢ · peak99¢
Builder fee
0%
Apps routing your order add up to 100 bps (1%) of notional, on top of the platform fee.
Platform fee · taker
$0.63
USDC
Effective rate
6.30%
Your cost
$10.00
As a maker
$0.00
Per 100 shares
$0.630
◆
20% of collected taker fees are rebated to makers daily. Takers can also earn tiered rebates separately.
Validate vs a live market
Fee curve — Crypto
drag anywhere on the chart
$0.00$0.44$0.88$1.31$1.750¢25¢50¢75¢100¢PEAK
The dollar fee is highest at 50¢ (maximum uncertainty) and falls symmetrically toward 1¢ and 99¢. A 30¢ share and a 70¢ share cost exactly the same.
Taker fee per 100 shares
10¢
$0.630
25¢
$1.313
50¢
$1.750
75¢
$1.313
90¢
$0.630