In this guide
Key takeaway: Polymarket operates exclusively with USDC settled on the Polygon blockchain. You may acquire USDC via credit card using the integrated MoonPay service (available directly within Polymarket) or move funds from any wallet supporting Polygon. Whilst there is no mandated floor, depositing $10 or more is advisable to ensure sufficient capital for meaningful market participation.
Getting funds onto Polymarket can present challenges for those new to decentralised finance. This walkthrough covers all available pathways — ranging from the most straightforward option (purchasing via credit card through MoonPay) to the most economical solution (withdrawing from an established exchange).
What you need before depositing
- An activated Polymarket account (identity verification completed)
- Either a credit/debit card OR access to an existing crypto exchange account
- A small quantity of MATIC to cover transaction costs (negligible amounts — ordinarily under $0.01 per operation)
Method 1: Buy USDC directly via MoonPay (easiest)
- Access your Polymarket account
- Locate and select "Deposit" from the main menu
- Choose "Buy with card" — MoonPay's interface will load
- Specify your desired amount using USD/EUR/GBP denominations
- Proceed through MoonPay's verification process (typically completed in under 2 minutes)
- Settle payment using Visa, Mastercard, or Google Pay
- Your USDC balance will reflect in your Polymarket wallet between 5–10 minutes
Fees: MoonPay's pricing structure ranges from 3.5–5% for card-based transactions. Whilst this method prioritises accessibility, it represents the costlier approach in percentage terms.
Method 2: Transfer from Coinbase, Kraken, or Binance
For those with existing USDC or ETH holdings at major centralised platforms:
- Retrieve your Polymarket wallet address (accessible via the Deposit interface)
- Initiate a withdrawal from your exchange, ensuring you designate the Polygon network (avoid Ethereum mainnet — transaction costs escalate significantly)
- Input your Polymarket address and authorise the transaction
- Allow 2–5 minutes for the blockchain to confirm the transfer
Fees: Most platforms impose a flat withdrawal charge between $1–3. For substantial transfers, this approach delivers considerably better economics than card-based purchasing.
⚠️ Ensure you specify the Polygon network when withdrawing USDC on Polygon to your Polymarket address. Routing through Ethereum's primary network will incur substantially elevated fees and may necessitate an additional bridging step.
Method 3: Bridge from Ethereum
Should your USDC holdings reside on Ethereum's base layer, you have the option to transfer them to Polygon utilising the canonical Polygon Bridge or alternative solutions such as Hop Protocol. The transfer window typically spans 10–30 minutes, with Ethereum network fees applying to the operation.
Minimum and maximum amounts
Polymarket does not enforce a prescribed minimum deposit threshold. However, amounts below $10 often prove impractical for active trading given the impact of market spreads on smaller positions. Conversely, no upper limit exists, though unusually large inflows may prompt additional regulatory scrutiny.
Simpler alternative: PolyGram
PolyGram streamlines the funding experience considerably, granting seamless access to Polymarket's entire order book through an optimised account setup process. Start trading on PolyGram →