Will China invade Taiwan by December 31, 2027?

Platform comparison

Market context

Polymarket prices this Taiwan invasion contract at **12% YES** today, which means traders on Polygon are still paying up in USDC for a relatively small chance that China begins a qualifying military offensive before the market’s 31 December 2027 deadline. Because the contract settles via conditional tokens, the key question is not whether tensions stay high, but whether there is official confirmation or a credible reporting consensus that Beijing has started an offensive intended to establish control over any inhabited Taiwanese territory.

The current price sits against a long-running “Davidson Window” narrative that has often overstated certainty around 2027. U.S. intelligence’s 2026 Annual Threat Assessment says Chinese leaders do **not** currently plan to execute an invasion in 2027 and do **not** have a fixed unification timeline, while also warning that coercive pressure is likely to continue. That lines up with the market’s low-but-not-zero pricing: traders appear to be distinguishing between routine military intimidation, blockade rehearsal, and the much harder threshold of an actual invasion.

For traders, the main catalysts are official messaging and force posture rather than abstract rhetoric. Watch for PLA exercise calendars, unusual amphibious or missile deployments, changes in Taiwan’s readiness posture, and any shift in U.S. or allied intelligence language after annual threat updates. Recent reporting from the ODNI and follow-up coverage by CNN and Reuters-style outlets has reinforced the view that the near-term base case is continued coercion, not an assault, which helps explain why the contract still trades far below even-money despite the geopolitical risk premium.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Will China invade Taiwan by December 31, 2027? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

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