Polymarket Perps Fee Calculator
Calculate a Polymarket Perps maker or taker fee from fill notional and the current trailing 30-day volume tier. Includes all published tiers and rebates.
Enter the fill notional, choose the account's trailing 30-day volume tier, and say whether the fill added or removed liquidity. The calculator applies Polymarket's published Perps rate snapshot verified August 12, 2026.
Affiliate disclosure: Business Dog may earn money if you open or use Polymarket through a qualifying link here. That does not change the math, the verdict, or the price you see. Yes, this link can make us money.
Official Perps schedule snapshot verified 2026-08-12. Tiers are re-evaluated daily from trailing 30-day volume; confirm the live schedule.
The formula
Polymarket currently calculates each Perps fill fee as:
Fee = absolute value of (Price × Quantity) × Rate
Price multiplied by quantity is the fill notional. The absolute value means long, short, buy, and sell fills use a positive notional for fee calculation. A negative maker rate is different: that published rate produces a rebate.
Example at the base tier:
- fill notional: 10,000 pUSD;
- taker rate: 0.0400%;
- fee:
10,000 × 0.0004 = 4 pUSD.
If the position later closes with another 10,000 pUSD taker fill at the same tier, that second fill creates another 4 pUSD fee. The simplified round-trip total is 8 pUSD. Actual exit notional often differs because price and position size can change.
This is a fill calculator, not a full PnL calculator
The result does not include funding transfers, liquidation costs, spread, slippage, or a second fill. CowDog has asked accounting to investigate all five. Accounting has stopped replying.
Current Polymarket Perps fee tiers
The published schedule at verification time is:
| Trailing 30-day volume | Taker rate | Maker rate |
|---|---|---|
| $0+ | 0.0400% | 0.0125% |
| $1M+ | 0.0370% | 0.0100% |
| $5M+ | 0.0350% | 0.0080% |
| $25M+ | 0.0300% | 0.0050% |
| $100M+ | 0.0270% | 0.0020% |
| $500M+ | 0.0250% | 0.0000% |
| $1B+ | 0.0200% | −0.0050% rebate |
Polymarket says standard new accounts begin at the $0 tier. It re-evaluates tiers daily in UTC. A temporary beta exception places a subset of early accounts on the top-tier schedule, so an account's actual displayed rate remains the source of truth.
Maker versus taker
A maker order adds liquidity by resting on the book before it fills. A taker order removes liquidity by matching available resting orders. “Limit” does not automatically mean maker: a marketable limit order can cross the spread immediately and become a taker fill.
The fee calculator asks for the fill's actual liquidity role. If an order fills in pieces, inspect the exchange record rather than assuming every piece received the same treatment.
Why the calculator asks for notional
Leverage changes required collateral, not the fee formula's base. A 10,000 pUSD fill remains 10,000 pUSD of fee notional whether the position uses 2× or 10× leverage. The account may post different initial margin, but the fill fee still applies to the traded notional.
This is one reason a rate that looks microscopic can matter. Repeated leveraged turnover applies that rate to notional again and again. The fee did not become large. The quantity of fee-shaped events did.
For funding, margin, mark price, and liquidation mechanics, read how Polymarket Perps work. Predictions use a different product and a different Polymarket fee formula.
If you first need the binary-share math that Perps do not use, the Polymarket probability calculator makes that separation concrete.
Does Polymarket Perps charge fees when I open and close?
Each fill is evaluated separately. An opening fill and a later closing fill normally each create a fee or eligible maker rebate at the account's current tier.
Does leverage reduce the Polymarket Perps trading fee?
No. The fee uses fill notional, not posted initial margin. Leverage changes how much margin supports the notional and how close the account may be to risk thresholds.
What does a negative maker fee mean?
It is a maker rebate. Under the published $1 billion tier, an eligible maker fill receives 0.0050% of notional instead of paying a maker fee.
Sources
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This article is educational and satirical content from Business Dog. It is not financial, legal, or tax advice. It's just business.