Polymarket uses USDC on the Polygon network for trading. Here's how to deposit funds and start trading.
What You Need
- Crypto wallet: MetaMask, Phantom, or compatible wallet
- USDC: On Polygon network (not Ethereum mainnet)
- Small amount of MATIC: For gas fees (minimal)
Deposit Steps
- Connect your wallet to Polymarket
- Ensure you have USDC on Polygon
- Approve USDC spending
- Deposit to your Polymarket account
Phantom Wallet Issues
If Phantom deposits aren't working:
- Check network: Ensure you're on Polygon, not Solana
- Update wallet: Use latest Phantom version
- Clear cache: Try disconnecting and reconnecting
- Try alternative: MetaMask often has fewer issues
Getting USDC on Polygon
- Bridge from Ethereum: Use Polygon Bridge
- Buy directly: Some exchanges support Polygon withdrawals
- Swap on Polygon: Use a DEX if you have other Polygon tokens
Troubleshooting
- Deposits not showing? Wait a few minutes for confirmation
- Transaction failed? Check you have MATIC for gas
- Wrong network? Bridge your USDC to Polygon