US defaults on debt by 2027?

This market will resolve to "Yes" if the United States federal government fails to make a scheduled payment on any Treasury note, bond, or bill at any point between November 5, 2025, and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". If Standard & Poor’s, Moody’s, or Fitch publicly classify any U.S. sovereign debt as being in default during the qualifying period this will qualify for a “Yes” resolution. The resolution source will be official information from the U.S. Department of the Treasury, Standard & Poor’s, Moody’s, and Fitch.

How trading works

Polymarket uses a central limit order book (CLOB) model — you can buy or sell shares of any outcome at the current market price, or place limit orders at your target price. All positions are settled in USDC when the market resolves.

Resolution

Markets resolve through UMA's Optimistic Oracle. After the market closes, a proposer submits a resolution, followed by a 2-hour dispute window. If no dispute is raised, the resolution is accepted. Disputed markets go to UMA token holder vote.