In this guide
Key takeaway: Polymarket requires USDC on the Polygon network. You can acquire USDC instantly via credit card through MoonPay (integrated into Polymarket) or transfer from any Polygon-compatible exchange. Minimum deposit: no official threshold, though $10 or more is advisable for practical market participation.
Getting funds into Polymarket presents multiple pathways that can seem daunting to first-time users. This walkthrough covers all available routes — ranging from the most straightforward (card-based purchases via MoonPay) to the most economical (direct transfers from established exchanges).
What you need before depositing
- A validated Polymarket account (KYC verification completed)
- A credit/debit card OR an established crypto exchange account
- A small quantity of MATIC for transaction costs (negligible sums — usually under $0.01 per operation)
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
- Proceed through MoonPay's verification process (typically completed within 2 minutes)
- Settle payment using Visa, Mastercard, or Google Pay
- USDC credits appear in your Polymarket wallet between 5–10 minutes
Fees: MoonPay applies a cost of roughly 3.5–5% on card transactions. Whilst this offers maximum convenience, it represents the priciest option available.
Method 2: Transfer from Coinbase, Kraken, or Binance
Should you already possess USDC or ETH holdings on a major exchange:
- Retrieve your Polymarket wallet address (accessible via the Deposit interface)
- Initiate a withdrawal from your exchange, ensuring you specify the Polygon network (avoid Ethereum mainnet — costs escalate significantly)
- Input your Polymarket address and authorise the transaction
- Allow 2–5 minutes for network confirmation
Fees: Most platforms levy a flat withdrawal charge of $1–3. This approach proves substantially more economical than MoonPay for substantial transfers.
⚠️ Ensure you select the Polygon network when moving USDC to Polymarket. Routing through the Ethereum mainnet triggers substantially elevated fees and may necessitate an additional bridge transaction.
Method 3: Bridge from Ethereum
For those holding USDC on Ethereum mainnet, conversion to Polygon is achievable via the official Polygon Bridge or alternative solutions such as Hop Protocol. The operation typically requires 10–30 minutes and incurs Ethereum gas expenditure.
Minimum and maximum amounts
Polymarket imposes no mandated minimum deposit threshold. Practically speaking, amounts below $10 provide insufficient capital for meaningful market engagement once spread costs are factored in. Conversely, no upper limit exists, though substantial deposits may prompt enhanced regulatory scrutiny.
Simpler alternative: PolyGram
PolyGram streamlines the funding mechanism considerably, granting immediate access to Polymarket's complete order book through an optimised registration experience. Start trading on PolyGram →