In this guide
Key takeaway: Polymarket operates exclusively with USDC settled on the Polygon network. You may acquire USDC via card payment through MoonPay (integrated directly into Polymarket) or move funds from any wallet supporting Polygon. There is no formally mandated minimum deposit amount, though starting with $10 or more is advisable for practical market participation.
Getting funds into Polymarket can seem daunting for those new to decentralised finance. This walkthrough covers all available pathways — ranging from the quickest approach (card-based purchasing via MoonPay) through to the most economical solution (moving assets from a major exchange).
What you need before depositing
- An active Polymarket account with identity verification completed
- Either a valid payment card OR an existing account at a crypto exchange
- A small quantity of MATIC to cover transaction costs (negligible sums — usually under $0.01 per operation)
Method 1: Buy USDC directly via MoonPay (easiest)
- Access your Polymarket account
- Select "Deposit" from the main menu bar
- Choose "Buy with card" — MoonPay's interface will load
- Specify your desired amount in USD/EUR/GBP
- Proceed through MoonPay's verification process (typically completed in under 2 minutes)
- Settle payment using Visa, Mastercard, or Google Pay
- Your USDC balance updates within 5–10 minutes
Fees: MoonPay's markup ranges from 3.5–5% on card-based transactions. Whilst offering maximum convenience, this route carries the highest cost per dollar deployed.
Method 2: Transfer from Coinbase, Kraken, or Binance
Should you already possess USDC or ETH at a major centralised exchange:
- Retrieve your Polymarket wallet address (visible in the Deposit interface)
- Initiate a withdrawal from your exchange, ensuring you elect the Polygon network (avoid Ethereum mainnet — transaction costs escalate significantly)
- Input your Polymarket address and authorise the transfer
- Allow 2–5 minutes for the blockchain to confirm
Fees: Most platforms levy a flat $1–3 withdrawal charge. This represents substantially better value than MoonPay when moving larger sums.
⚠️ Ensure you designate the Polygon network for all USDC withdrawals destined for Polymarket. Routing through the Ethereum mainnet triggers substantially elevated costs and may necessitate an additional bridging step.
Method 3: Bridge from Ethereum
Should your USDC reside on Ethereum's base layer, you may utilise the native Polygon Bridge or alternative solutions such as Hop Protocol to transfer it across chains. This operation typically requires 10–30 minutes and incurs Ethereum-layer transaction expenses.
Minimum and maximum amounts
Polymarket does not enforce a formally stated minimum deposit threshold. Pragmatically, amounts below $10 offer limited trading flexibility once slippage and market-making spreads are factored in. Deposits exceeding standard thresholds may prompt supplementary identity or compliance verification.
Simpler alternative: PolyGram
PolyGram streamlines the funding experience considerably, granting you immediate access to Polymarket's entire order book through a frictionless account setup. Start trading on PolyGram →