Can this calculator promise my Polymarket rebate?

No. Maker payout depends on a daily market pool and competing fee-equivalent liquidity. Taker treatment depends on rolling weighted volume, current program rules and account eligibility. The calculator leaves the dollar rebate unknown.

Are Polymarket builder fees part of the platform fee?

No. Current Builder documentation says application fees are additive to any platform fee and are a flat percentage of notional.

Polymarket Fee, Rebate & Builder Cost Calculator

Model the published upfront fee stack, the weighted volume this taker fill would add, your projected tier, and a maker order's fee-equivalent weight. Unknown program payouts stay unknown.

Sources reviewed July 23, 2026. Polymarket says rates and incentive terms can change. Verify Market Details and current program pages before using the result.

Estimate one hypothetical fill

Shares Execution price (¢) Liquidity role Market category Builder fee (bps) Current 30-day weighted volume

I confirmed this account path is eligible and is not a third-party omnibus-wallet integration.

What this can calculate

Platform taker fee: shares × category rate × price × (1 − price), using five-decimal schedule precision.
Builder fee: a flat percentage of notional, additive to the platform fee. Current maxima are 100 bps taker and 50 bps maker.
Taker weighted volume: notional × upside × category weight, added to the rolling volume you enter.
Maker fee-equivalent: the weight used to divide a daily market rebate pool—not a promised payout.

What remains unknown

The maker pool denominator depends on other makers. Taker program eligibility depends on account path and current rules; third-party omnibus-wallet integrations are currently excluded. Spread, slippage, funding, transfer, resolution, and exit costs also require separate inputs.

Current primary sources

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Educational research only. No strategy, profitability, legal, tax, or eligibility claim.