How to Trade on Polymarket: Step-by-Step Guide

Polymarket is a blockchain-based prediction market where you buy and sell event contracts using USDC stablecoins. Each contract pays $1.00 if the event happens, $0.00 if it does not, and the current price represents the market’s probability estimate. This guide walks through every step from account creation to withdrawal.

Interface may vary — verify current steps at polymarket.com.

What Do You Need Before Getting Started?

Before placing your first trade, you need three things: a crypto wallet, USDC stablecoins, and a basic understanding of how prediction market pricing works. If you have not used prediction markets before, read our guide on how to read prediction market odds first.

Here is a quick overview of requirements:

Note that Polymarket is not available to US residents following a 2022 CFTC settlement. US-based traders should see our Kalshi trading guide instead. For a full comparison of the two platforms, see our Polymarket vs Kalshi breakdown.

How Do You Create a Polymarket Account?

Polymarket offers two onboarding paths. The first uses an existing self-custody crypto wallet. Connect MetaMask, Coinbase Wallet, or another WalletConnect-compatible wallet to the site, and your wallet address becomes your Polymarket identity. This is the fastest option if you already hold crypto.

The second path is email-based signup. Polymarket generates a custodial wallet tied to your email address. This approach removes the need for external wallet management but gives you less direct control over your funds.

Both paths require identity verification for higher deposit and withdrawal limits. The verification process requests standard information: government-issued ID, proof of address, and a selfie. Basic accounts without verification can still trade, but with restricted limits.

How Do You Fund Your Account with USDC?

Polymarket runs on USDC, a dollar-pegged stablecoin, on the Polygon blockchain. You have several funding options:

Direct USDC deposit on Polygon. If you already hold USDC on Polygon, send it directly to your Polymarket wallet address. This is the cheapest and fastest method — transactions on Polygon cost fractions of a cent and confirm in seconds.

Bridge from Ethereum. If your USDC is on Ethereum mainnet, use a bridging service to move it to Polygon. Polymarket’s interface may offer a built-in bridge. Ethereum gas fees apply for the bridging transaction, which can range from a few dollars to $20+ during network congestion.

Buy with fiat via onramp. Polymarket integrates with fiat onramp providers that allow credit card or bank transfer purchases. You buy USDC directly into your Polymarket wallet. Onramp fees typically run 1.5% to 3.5% depending on the provider and payment method.

For a detailed breakdown of all trading costs, see our prediction market fees guide.

How Do You Find and Evaluate a Market?

Once funded, browse markets by category: politics, economics, sports, crypto, science, and more. Each market page displays the current price, trading volume, liquidity depth, and an order book.

Before placing a trade, evaluate these factors:

Price. A contract priced at $0.35 implies a 35% probability. Your edge depends on whether you believe the true probability is higher or lower than the market price.

Volume. Higher volume indicates more participants and better price discovery. Markets with tens of thousands of dollars in daily volume produce more reliable signals than markets with a few hundred.

Liquidity. Check the order book depth. Thin order books mean your trade may move the price significantly against you (slippage). Deep books let you enter and exit at close to the displayed price.

Resolution criteria. Every market specifies exactly how the outcome is determined and who resolves it. Read the resolution source and rules before trading. Ambiguous resolution criteria have caused disputes on past markets.

Our Polymarket platform profile covers the platform’s market creation process and resolution mechanisms in detail.

How Do You Place a Buy Order?

Select a market, choose whether to buy Yes or No shares, and enter the number of shares or the dollar amount you want to spend. Polymarket supports both market orders (execute immediately at best available price) and limit orders (execute only at your specified price or better).

Market orders fill instantly but may suffer slippage on thin markets. If the order book shows $500 of liquidity at $0.40 and you buy $2,000 worth, you will push the price up as your order eats through higher price levels.

Limit orders let you set your maximum price. Your order sits in the book until someone trades against it or you cancel. Limit orders avoid slippage but may not fill if the market never reaches your price.

After your order fills, your shares appear in your portfolio. Each share represents a claim on $1.00 if the event resolves in that direction.

How Do You Monitor and Manage Your Positions?

Your portfolio page shows all open positions, current market prices, unrealized profit/loss, and position sizes. Track how the market moves after your entry.

Several management strategies apply:

Hold to resolution. If you bought at $0.35 and the event happens, you receive $1.00 per share — a $0.65 profit per share. This is the simplest approach but locks your capital until the market resolves.

Sell early. If the price moves from $0.35 to $0.70, you can sell your shares for a $0.35 profit without waiting for resolution. This frees your capital for other trades. Selling before resolution is useful when the remaining upside is small relative to the time or risk.

Average down or up. If you believe the market has moved against you incorrectly, you can buy more shares at the lower price to reduce your average cost. This increases your exposure and magnifies both potential gains and losses.

The Odds Reference dashboard tracks real-time prices across platforms including Polymarket. Cross-referencing with other platforms helps you assess whether the current price reflects a consensus or if one platform is an outlier.

How Do You Withdraw Your Profits?

After selling shares or having positions resolve profitably, your USDC balance increases. Withdrawal follows a two-step process:

1. Withdraw from Polymarket to your wallet. Transfer USDC from your Polymarket account to your connected crypto wallet address on Polygon.
2. Convert to fiat. Send the USDC from your wallet to a centralized exchange (Coinbase, Kraken, Binance, etc.), sell for your local currency, and withdraw to your bank account.

Polygon network fees for the first step are negligible. Exchange withdrawal fees and processing times vary by platform and country. ACH withdrawals from US-based exchanges typically take 1-3 business days.

Keep records of all trades for tax purposes. Prediction market profits are generally treated as taxable income in most jurisdictions, though specific treatment varies. Consult a tax professional for your situation.

What Are the Risks of Trading on Polymarket?

Every trading platform carries risks. On Polymarket specifically:

• Smart contract risk. Polymarket runs on smart contracts. While audited, no smart contract is guaranteed to be vulnerability-free.
• Resolution disputes. Some markets have faced contested resolutions. Read the resolution criteria carefully before trading.
• Liquidity risk. Thin markets may make it difficult to exit a large position without significant slippage.
• Regulatory risk. Polymarket’s regulatory status could change, affecting access or fund availability.
• Crypto custody risk. If using a self-custody wallet, losing your private keys means losing access to your funds permanently.

Key Takeaways

• Polymarket uses USDC stablecoins on Polygon — you need a compatible wallet and USDC to start trading
• Each contract pays $1.00 if correct and $0.00 if wrong; the trading price represents the market’s probability estimate
• Evaluate volume, liquidity depth, and resolution criteria before every trade
• You can sell positions before resolution to lock in profits or cut losses without waiting
• US residents cannot use Polymarket — Kalshi is the CFTC-regulated alternative for American users