GUIDE · UPDATED 2026-10-17
Polymarket Review 2026: Fees, the US Re-Entry and Who It Fits
Verdict: Polymarket remains the widest prediction-market catalog in the world and the default venue for crypto-native traders. The 2025–2026 US re-entry — a CFTC-regulated exchange called Polymarket US, open to American users on web, iOS and Android — finally gives US traders a legal on-ramp. It fits traders who want market breadth and cheap trading; it fits poorly if you want dollar bank transfers, guaranteed-fiat outcomes or a single fully US-regulated book.
What Polymarket is (now two venues, one brand)
- The global exchange: the original crypto platform. Funds live in USDC, trading has carried no exchange fee, and the catalog runs from elections to crypto prices to pop culture. It is not available to US persons — Americans must use the regulated venue instead.
- Polymarket US (QCX LLC): a CFTC-designated contract market. The CFTC approved the re-entry in September 2025, an amended designation enabled an intermediated platform in November 2025, and a market-liquidity program took effect in March 2026. US users complete KYC and trade through the app in USD terms.
Fees, in real numbers
The global exchange has historically charged no trading fee. Polymarket US uses a taker formula similar to Kalshi's but at 0.0695 instead of 0.07 — for 100 contracts filled at 50¢, expect roughly $1.00 versus Kalshi's $1.75. At extreme prices both formulas shrink toward zero, which is what makes them friendlier than a fixed commission for longshots. Withdrawal of USDC is on-chain; costs depend on the network you pick.
Custody and settlement
On the global exchange, positions live in your own crypto wallet — powerful, but it means standard crypto custody discipline (and no chargebacks). On Polymarket US, the intermediated model means the platform holds positions for you, closer to a brokerage experience. Settlement is decided per-market through UMA's optimistic oracle on the global side; the US venue follows its exchange rulebook. Oracle disputes have occasionally reversed initial outcomes after public challenge — rare, but it has happened and it's part of the risk you accept.
What we like / what we don't
- Pros: unmatched market breadth and liquidity on big events; no trading fee on the global book; a genuine regulated US app; deep historical price data you can query.
- Cons: two-venue split confuses newcomers (the app you want depends on where you live); global side requires crypto rails and self-custody; oracle disputes add settlement risk; a 2022 settlement with the CFTC still shadows the brand even as the regulated venue operates.
Who should (and shouldn't) use it
Use it if you're comfortable with USDC or want the deepest catalog on earth and accept oracle-settlement risk. Skip it for now if you need fiat-only flows, want every dollar of custody inside a US-regulated intermediary, or if your state's access to specific contract types is restricted — check the legal map first. If you're deciding between the two giants, our Polymarket vs Kalshi comparison settles it by use case, and the Kalshi review covers the fiat-first alternative.
Can Americans legally use Polymarket?
Yes — through Polymarket US, the CFTC-regulated exchange, after KYC. Trading on the global crypto exchange from the US remains off-limits, which is the single most common compliance mistake new users make.Does Polymarket charge fees?
The global exchange has carried no trading fee; Polymarket US charges a small taker fee (0.0695 × contracts × price × (1−price), rounded). Deposit method and on-chain withdrawal network costs can matter more than the trading fee for small accounts.Independent review — no affiliate relationship with any platform named. Educational content, not financial or legal advice. Facts verified October 2026 against CFTC filings and published fee schedules.
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