Will China invade Taiwan by December 31, 2027?

Platform comparison

Market context

China has not set a public invasion date for Taiwan, and the prevailing official assessment from the US intelligence community is that Beijing does **not** currently plan to execute an invasion in 2027 and has no fixed unification timeline. [3][13][16] For a programmatic trader, that means the market should be treated less like a single-date calendar bet and more like a detection problem: price moves will likely react to structured evidence of mobilisation, amphibious readiness, and political signalling rather than routine rhetoric.

The 12% crowd-implied probability sits below the long-running “2027 window” narrative because recent assessments have leaned against an outright assault, even while warning of persistent coercion. [1][16] Historical comparables point in the same direction: analysts have repeatedly distinguished between being *able* to attack and being *willing* to do so, and recent defence commentary has framed the more probable path as intimidation, exercises, and grey-zone pressure rather than a full-scale invasion. [7][18] In prediction-market terms, this is the sort of event where copy-trading or conditional orders often key off regime changes in source material, not day-to-day noise.

The main catalysts to watch are official military or political announcements, large PLA exercises near the Taiwan Strait, changes in mobilisation posture, and any explicit statements from Beijing, Taipei, Washington, or the UN system that would materially shift the resolution risk. [3][16][18] The most relevant recent source in the search set is the ODNI’s 2026 threat assessment, which said China likely would not invade Taiwan in 2027 while continuing coercive action, so traders using bots should flag any later update that reverses or sharpens that baseline. [16] A separate current market reference also shows the crowd broadly aligned with that view, with “Yes” trading around 13%. [1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.