How to Deposit on Polymarket: Step-by-Step Guide 2025
Key takeaway: Polymarket requires USDC on the Polygon network. You can buy USDC directly via credit card through MoonPay (built into Polymarket) or transfer from any Polygon-compatible wallet. Minimum deposit: no official minimum, but $10+ recommended for meaningful trades.
Depositing on Polymarket can be confusing for crypto newcomers. This guide walks you through every option — from the simplest (credit card via MoonPay) to the most cost-efficient (transferring from an exchange).
What you need before depositing
- A verified Polymarket account (KYC completed)
- A credit/debit card OR an existing crypto exchange account
- Some MATIC for gas fees (tiny amounts — typically less than $0.01 per transaction)
Method 1: Buy USDC directly via MoonPay (easiest)
- Log into your Polymarket account
- Click "Deposit" in the top navigation
- Select "Buy with card" — this opens MoonPay
- Enter the amount in USD/EUR/GBP
- Complete MoonPay's identity verification (quick, usually 2 minutes)
- Pay with Visa, Mastercard, or Google Pay
- USDC arrives in your Polymarket wallet within 5–10 minutes
Fees: MoonPay charges approximately 3.5–5% on card purchases. This is the most convenient but least cost-efficient method.
Method 2: Transfer from Coinbase, Kraken, or Binance
If you already hold USDC or ETH on a centralised exchange:
- Copy your Polymarket wallet address (found in the Deposit section)
- On your exchange, withdraw USDC — select Polygon network (not Ethereum — fees are much higher)
- Paste your Polymarket address and confirm
- Wait 2–5 minutes for confirmation
Fees: Typically $1–3 flat withdrawal fee on most exchanges. Much cheaper than MoonPay for larger amounts.
⚠️ Always select the Polygon network when withdrawing USDC to Polymarket. Sending on the Ethereum mainnet will result in much higher fees and may require a bridge.
Method 3: Bridge from Ethereum
If you hold USDC on Ethereum mainnet, you can bridge it to Polygon using the official Polygon Bridge or third-party bridges like Hop Protocol. This process takes 10–30 minutes and incurs Ethereum gas fees.
Minimum and maximum amounts
Polymarket has no official minimum deposit. In practice, deposits under $10 leave little room for meaningful trading after spread costs. There's no maximum, but large deposits may trigger additional compliance checks.
Simpler alternative: PolyGram
PolyGram simplifies the deposit process significantly, letting you access Polymarket's full liquidity with a streamlined onboarding flow. Start trading on PolyGram →