In this guide
What Crypto Can You Deposit on Polymarket?
The primary settlement asset accepted by Polymarket is USDC, which operates exclusively on the Polygon blockchain. Direct deposits of ETH, BTC, or alternative cryptocurrencies are not supported by the platform. Nonetheless, UK-based traders holding alternative digital assets can readily convert their holdings to USDC through either decentralised exchange protocols or traditional cryptocurrency exchanges before initiating a deposit.
How to Convert ETH to USDC for Polymarket
- Via a CEX (easiest): Exchange ETH for USDC on platforms such as Coinbase or Kraken, followed by withdrawing the USDC directly to the Polygon network
- Via Uniswap on Polygon: Move ETH to Polygon using the official Polygon bridge infrastructure, then execute a swap to USDC through Uniswap's liquidity pools
- Via 1inch: Leverages price discovery across numerous decentralised protocols on Polygon to identify optimal swap execution
USDC Networks: Polygon vs Ethereum
Polymarket's infrastructure is built around Polygon-native USDC (not a bridged variant). It is critical to ensure you transfer USDC specifically on the Polygon network rather than the Ethereum mainnet. Transferring ERC-20 USDC from Ethereum to a Polygon-designated address will result in permanent loss of 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 via a UK-regulated exchange, then transfer the resulting USDC on Polygon to your Polymarket account. Completion of this conversion typically occurs within 30 minutes following account verification.
Minimum Crypto Deposit
Polymarket does not impose a mandatory minimum deposit threshold. A realistic floor of approximately $5 in USDC is advisable to account for network transaction costs whilst preserving sufficient capital for active trading participation.