In this guide
What Crypto Can You Deposit on Polymarket?
Polymarket accepts USDC as its primary deposit asset on the Polygon blockchain. Direct deposits of ETH, BTC, or alternative cryptocurrencies are not supported. That said, UK-based traders holding alternative digital assets can readily convert to USDC through either a decentralised exchange or a traditional crypto platform before funding their account.
How to Convert ETH to USDC for Polymarket
- Via a CEX (most straightforward): Exchange ETH for USDC on platforms such as Coinbase or Kraken, then withdraw your USDC directly to the Polygon network
- Via Uniswap on Polygon: Move ETH onto Polygon using the official Polygon bridge, then execute a token swap to USDC through Uniswap
- Via 1inch: Leverages liquidity across multiple Polygon-based DEXes to source optimal exchange rates
USDC Networks: Polygon vs Ethereum
Polymarket operates exclusively with Polygon-native USDC (not wrapped or bridged variants). Ensure your USDC transfer targets the Polygon chain specifically, rather than Ethereum's mainnet. Transferring mainnet USDC to a Polygon address will permanently destroy those funds.
- ✅ Polygon USDC (MATIC network) → use this
- ⚠️ Ethereum USDC (ERC-20) → requires bridging before use on Polymarket
Can You Deposit BTC on Polymarket?
Direct BTC deposits are not permitted. You must first convert your BTC holdings to USDC on a UK-regulated exchange, then transfer the resulting USDC to Polygon. Once your exchange account is fully authenticated, the entire conversion and transfer sequence typically completes within half an hour.
Minimum Crypto Deposit
Polymarket does not impose a mandatory deposit floor. Realistically, approximately $5 worth of USDC represents a sensible practical threshold—sufficient to absorb network transaction fees whilst retaining adequate capital for active market participation.