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Prediction market fees compared

What to look for across Polymarket, Kalshi, PredictIt, and Novig — verify live schedules; we never invent fee percentages. · 8 min read

Updated 19 September 2026 (Asia/Nicosia)

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Disclosure: ChanceWire may earn a commission when you use certain partner links. Some platforms are comparison-only with no public cash affiliate. We do not invent fee percentages or commission amounts. Always verify the operator’s live fee schedule.

Two markets can show similar Yes prices and still leave you with very different net outcomes after trading fees, spreads, withdrawal costs, or profit fees. This guide teaches what to look for — not a snapshot of “current %” that would go stale tomorrow.

Fee dimensions checklist

  • Trading / exchange — Per-contract? Maker vs taker? On notional or on profit?
  • Spread — How wide is bid–ask on contracts you care about?
  • Deposit / withdrawal — Fiat rails, crypto gas, flat fees?
  • Profit / cash-out fees — Common on some older political markets — verify current terms.
  • Other — Inactivity or transfer fees buried in terms?

ChanceWire platform primers describe fee posture in words — never treat those blurbs as a live calculator.

Polymarket

Typically crypto collateral (e.g. USDC on Polygon) — onboarding and gas are part of total cost. Public materials have historically emphasized relatively low trading friction on many markets; schedules change — confirm on Polymarket. ChanceWire surfaces live odds from Polymarket’s public API; partner CTAs (where eligible) use AgeGate + disclosure.

→ Polymarket overview · Polymarket LP

Kalshi

USD on a CFTC-regulated exchange narrative. Exchange fees per contract are part of the product — open Kalshi’s fee schedule for formulas and examples. ChanceWire will not invent a number here. Soft / comparison-oriented CTA until BD clears a public cash affiliate path.

→ Kalshi overview · Polymarket vs Kalshi

PredictIt

USD with familiar political-market UX. Public posture includes fees that can be material on profits and withdrawals, plus position limits — verify current rates and caps on PredictIt. Active traders should model fees before assuming “cheap because USD.”

→ PredictIt overview · Polymarket vs PredictIt

Novig

USD peer-to-peer sports event contracts (Ludlow Exchange / CFTC DCM narrative). Costs may show up as exchange fees and/or the bid–ask you trade through — check Novig for current details. Soft comparison CTA only; no invented publisher commissions.

→ Novig overview · What Novig is

How to compare without fake precision

  1. Open each operator’s fee / help page in a tab.
  2. Price the same hypothetical trade size on each (including exit).
  3. Add funding costs (wires, card, crypto gas).
  4. Factor liquidity — a “cheap” fee with a wide spread is not cheap.
  5. Re-check after product updates; don’t rely on last year’s screenshot.

Use ChanceWire compare pages for product-shape orientation, then verify dollars on the venue. See also how prediction markets work.

Published 19 September 2026 (Asia/Nicosia). Informational only. Not financial, legal, or tax advice. Fee schedules and eligibility change — verify before you trade. Affiliate disclosure.

FAQ

Does ChanceWire list current fee percentages?
No. ChanceWire does not invent fee percentages or commission amounts. We teach what to look for — trading fees, spreads, deposit/withdrawal costs — and you verify each operator’s live schedule.
Why can similar Yes prices leave different net outcomes?
Trading fees, bid–ask spreads, funding rails (fiat vs crypto gas), and profit or withdrawal fees can differ a lot across venues. Always model entry and exit costs, not just the displayed Yes price.
Where should I verify fees?
Open each operator’s fee or help page. Use ChanceWire compare and platform primers for product-shape orientation, then confirm dollars on the venue before you trade.