In this guide
Key takeaway: Polymarket requires USDC on the Polygon network. You can buy USDC directly via credit card through MoonPay (built into Polymarket) or transfer from any Polygon-compatible wallet. Minimum deposit: no official minimum, but $10+ recommended for meaningful trades.
Getting funds into Polymarket can seem daunting if you're new to cryptocurrency. This guide covers all the available pathways — ranging from the most straightforward option (credit card purchase via MoonPay) to the most economical solution (moving funds from an established exchange).
What you need before depositing
- A verified Polymarket account (KYC completed)
- A credit/debit card OR an existing crypto exchange account
- Some MATIC for gas fees (minimal quantities — usually under $0.01 per transaction)
Method 1: Buy USDC directly via MoonPay (easiest)
- Sign in to your Polymarket account
- Navigate to "Deposit" in the main menu
- Choose "Buy with card" — this launches MoonPay
- Specify your desired amount in USD/EUR/GBP
- Proceed through MoonPay's verification process (typically swift, around 2 minutes)
- Settle payment using Visa, Mastercard, or Google Pay
- Your USDC will be credited to your Polymarket wallet in approximately 5–10 minutes
Fees: MoonPay applies charges ranging from 3.5–5% on card transactions. Whilst this represents the most user-friendly approach, it carries the highest cost overhead.
Method 2: Transfer from Coinbase, Kraken, or Binance
Should you already possess USDC or ETH stored on a centralised exchange:
- Retrieve your Polymarket wallet address (accessible via the Deposit section)
- From your exchange, initiate a USDC withdrawal — ensure you select the Polygon network (avoid Ethereum — transaction costs are substantially higher)
- Input your Polymarket address and authorise the transaction
- Allow 2–5 minutes for the network to process and confirm
Fees: Most exchanges charge a flat withdrawal fee of $1–3. This represents considerably better value than MoonPay when transferring larger quantities.
⚠️ Always ensure you choose the Polygon network when withdrawing USDC to Polymarket. Routing through the Ethereum mainnet results in substantially elevated costs and may necessitate using a bridge service.
Method 3: Bridge from Ethereum
Should you hold USDC on the Ethereum mainnet, you have the option to bridge it across to Polygon utilising the official Polygon Bridge or alternative solutions such as Hop Protocol. The bridging operation typically requires 10–30 minutes and will incur Ethereum network fees.
Minimum and maximum amounts
Polymarket enforces no stated minimum deposit threshold. Practically speaking, amounts below $10 provide limited scope for substantive trading activity once spread expenses are factored in. Conversely, there exists no upper limit, though exceptionally large deposits may prompt additional regulatory scrutiny.
Simpler alternative: PolyGram
PolyGram streamlines the funding mechanism considerably, granting you full access to Polymarket's liquidity through an optimised registration and onboarding experience. Start trading on PolyGram →