Skip to main content
A prediction market is a place where people trade on the odds of future events. Prices reflect how the market currently views the odds of an outcome. Traders bet on their beliefs, and accurate predictions pay out.
Polymarket odds come entirely from user trades. Prices update whenever a buy or sell order is matched in the central order book, and those trades reflect what users believe right now. As new information appears, traders adjust their orders, and the odds move in real time to capture the current market sentiment. Polymarket US does not set prices or take the other side of your trades.
You can close your position at any time. You do not need to wait for a market to resolve. When you sell, the proceeds are added immediately to your cash balance.As a market gets closer to resolution, prices can change quickly. This can affect the price you receive if you sell before the outcome is known.
When you enter a dollar amount to buy, you might not spend the full amount because Polymarket US only supports whole contracts. Any leftover funds go straight back to your cash balance. Your portfolio then shows only the value of the contracts you received, which can make the position look slightly down at first even though you did not lose anything.
Your account may be under review for the following reasons:
  • Information mismatch or missing details
  • Similar information found on another account
  • Additional identity checks required for Know Your Customer (KYC) or anti-money-laundering (AML) compliance
Once verification is complete, your account activates automatically. You will be notified in-app and by email.
In most cases, your deposit is still processing. Deposits must fully clear before they can be withdrawn, which typically takes 3–4 business days. Business days do not include weekends or holidays.When you deposit, we credit you up to $50,000 in instant buying power so you can trade right away. To withdraw the original deposit or any proceeds from instant buying power, the funds must fully clear.If your deposit is still pending after 5 business days, contact support.
The promotional credit can only be used for trading. It cannot be withdrawn until after it has been used for trading.To withdraw any balance from the promotional credit, you must:
  1. Link a payment method
  2. Make an initial deposit
Once the deposit fully clears, typically within 2–3 business days, eligible funds become available to withdraw to the same linked payment method.
You can contact support through the in-app chat in your account settings, or by email at support@polymarket.us.For faster responses, include what you were trying to do, any error messages, reference IDs, and screenshots or screen recordings.