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 onto Polymarket may seem daunting at first, particularly for those new to cryptocurrency. This guide covers all available pathways — from the most straightforward option (credit card via MoonPay) to the most economical choice (transferring from a major 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 amounts — usually under $0.01 per transaction)
Method 1: Buy USDC directly via MoonPay (easiest)
- Access your Polymarket account
- Click "Deposit" in the top navigation
- Select "Buy with card" — this launches MoonPay
- Input your desired amount in USD/EUR/GBP
- Finish MoonPay's identity verification (straightforward, normally 2 minutes)
- Settle payment using Visa, Mastercard, or Google Pay
- USDC lands in your Polymarket wallet within 5–10 minutes
Fees: MoonPay applies roughly 3.5–5% on card transactions. Whilst this delivers maximum convenience, it ranks lowest in terms of cost-effectiveness.
Method 2: Transfer from Coinbase, Kraken, or Binance
Should you already own USDC or ETH on a centralised exchange:
- Retrieve your Polymarket wallet address (visible in the Deposit section)
- At your exchange, initiate a USDC withdrawal — choose Polygon network (not Ethereum — withdrawal costs are substantially higher)
- Input your Polymarket address and authorise the transaction
- Allow 2–5 minutes for the transfer to settle
Fees: Most exchanges charge a flat $1–3 withdrawal fee. This proves considerably more economical than MoonPay for sizable deposits.
⚠️ Always opt for the Polygon network when sending USDC to Polymarket. Using the Ethereum mainnet will trigger significantly elevated costs and might necessitate a bridge transfer.
Method 3: Bridge from Ethereum
Should you maintain USDC holdings on Ethereum mainnet, you may bridge those funds to Polygon via the official Polygon Bridge or alternative solutions such as Hop Protocol. This operation typically requires 10–30 minutes and involves Ethereum gas expenses.
Minimum and maximum amounts
Polymarket enforces no official minimum deposit threshold. Realistically, amounts below $10 provide insufficient capital for substantive trading given spread expenses. No upper limit exists, though exceptionally large deposits may prompt supplementary compliance procedures.
Simpler alternative: PolyGram
PolyGram streamlines the funding mechanism considerably, granting you full access to Polymarket's liquidity through an efficient onboarding experience. Start trading on PolyGram →