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 at first. This walkthrough covers all available pathways — ranging from the most straightforward option (credit card purchase via MoonPay) to the most economical solution (moving assets from a trading platform).
What you need before depositing
- An active Polymarket account with identity verification completed
- A debit or credit card OR an existing account on a cryptocurrency exchange
- A small quantity of MATIC to cover transaction costs (negligible amounts — usually under $0.01 per transaction)
Method 1: Buy USDC directly via MoonPay (easiest)
- Access your Polymarket account
- Navigate to "Deposit" from the main menu
- Choose "Buy with card" — MoonPay will launch
- Specify your desired amount in USD/EUR/GBP
- Undergo MoonPay's verification process (typically takes around 2 minutes)
- Settle payment using Visa, Mastercard, or Google Pay
- Your USDC will appear in your Polymarket wallet between 5–10 minutes
Fees: MoonPay applies a charge of roughly 3.5–5% when purchasing with a card. Whilst this represents the quickest path, it comes at a premium cost.
Method 2: Transfer from Coinbase, Kraken, or Binance
For those already possessing USDC or ETH on a major exchange:
- Retrieve your Polymarket wallet address (available in the Deposit area)
- Initiate a withdrawal from your exchange for USDC — ensure you choose the Polygon network (avoid Ethereum mainnet — transaction costs are substantially higher)
- Input your Polymarket address and authorise the transaction
- Allow 2–5 minutes for the transfer to complete
Fees: Most platforms charge a standard withdrawal fee between $1–3. This approach delivers considerably better value than MoonPay when transferring larger sums.
⚠️ Always ensure you select the Polygon network when moving USDC to Polymarket. Transferring via the Ethereum mainnet will trigger significantly elevated costs and may necessitate using a bridge.
Method 3: Bridge from Ethereum
Should you already own USDC on Ethereum mainnet, you have the option to transfer it to Polygon utilising the official Polygon Bridge or alternative solutions such as Hop Protocol. This operation typically requires 10–30 minutes and involves paying Ethereum network fees.
Minimum and maximum amounts
Polymarket does not enforce an official minimum deposit threshold. Practically speaking, amounts below $10 often prove insufficient for substantive trading once slippage and spread costs are factored in. Conversely, there exists no maximum limit, though sizeable deposits may prompt additional regulatory review.
Simpler alternative: PolyGram
PolyGram substantially streamlines the funding mechanism, granting you entry to Polymarket's complete order book via a frictionless registration experience. Start trading on PolyGram →