In this guide
What Crypto Can You Deposit on Polymarket?
Polymarket's primary accepted asset is USDC residing 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 their holdings to USDC through either a decentralised exchange or a traditional exchange operator before moving funds to Polymarket.
How to Convert ETH to USDC for Polymarket
- Via a CEX (simplest approach): Trade your ETH for USDC on platforms like Coinbase or Kraken, followed by a Polygon withdrawal of your USDC balance
- Via Uniswap on Polygon: Move ETH onto Polygon using the official bridge infrastructure, then execute a swap to USDC through Uniswap's interface
- Via 1inch: Leverages price discovery across numerous decentralised venues on Polygon to secure optimal swap execution
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 destination will permanently forfeit your 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. First convert your BTC holdings into USDC through a UK-regulated exchange, then transfer the resulting USDC on Polygon to your account. Completion typically occurs within half an hour provided your exchange identity verification is already finalised.
Minimum Crypto Deposit
Polymarket does not enforce a deposit floor. A realistic lower bound sits near $5 worth of USDC—sufficient to absorb transaction costs while preserving adequate capital for active market participation.