In this guide
What Crypto Can You Deposit on Polymarket?
Polygon-based USDC serves as Polymarket's primary deposit asset. Direct deposits of ETH, BTC, and alternative cryptocurrencies are not supported. That said, UK-based traders holding alternative digital assets can readily exchange them for USDC through either a decentralised or traditional exchange ahead of their deposit.
How to Convert ETH to USDC for Polymarket
- Via a CEX (simplest approach): Exchange ETH for USDC on platforms like Coinbase or Kraken, then withdraw your USDC to the Polygon chain
- Via Uniswap on Polygon: Transfer ETH across to Polygon using the official Polygon bridge, then execute a swap to USDC on Uniswap
- Via 1inch: Finds optimal swap pricing by comparing liquidity pools across numerous Polygon-based decentralised exchanges
USDC Networks: Polygon vs Ethereum
Polymarket operates exclusively with Polygon USDC (in its native form, not wrapped from another chain). Ensure your USDC transfer targets the Polygon network specifically, not the Ethereum blockchain. Transferring ERC-20 USDC from Ethereum to a Polygon destination will lead to permanent loss.
- ✅ Polygon USDC (MATIC network) → use this
- ⚠️ Ethereum USDC (ERC-20) → requires bridging before use on Polymarket
Can You Deposit BTC on Polymarket?
This is not an option. You will need to exchange BTC for USDC through a UK-regulated exchange initially, then move your USDC to the Polygon network. Completion typically takes fewer than 30 minutes after your exchange credentials have been authenticated.
Minimum Crypto Deposit
Polymarket does not set a strict floor on deposits. In practical terms, approximately $5 worth of USDC represents a reasonable starting point, accounting for transaction costs whilst preserving sufficient capital for active trading.