Polymarket deposits explained: USDC, Polygon, pUSD, minimums and who pays the fees

Guide · Updated October 30, 2026 · 18+ · Not legal, tax or financial advice · By BetG8 Editorial · Prediction Markets

Polymarket deposits: USDC, Polygon, pUSD and fees — Polymarket charges no deposit fee; networks, bridges and card issuers can.

Short answer: Polymarket does not charge its own deposit fee. On the US app you fund with cards, Apple Pay, PayPal, Venmo, bank transfer, wire or USDC, with daily limits reported at $20,000 to $50,000. On polymarket.com you send crypto from Ethereum, Solana, Bitcoin, Tron and other networks, and it is converted to pUSD, a USDC-backed token on Polygon. Minimums are $20 on Ethereum and $3 on Solana. Your real costs are network, bridge and card fees, and trading fees once you trade.

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Two Polymarkets, two ways to fund an account

“Depositing on Polymarket” means two different things depending on where you are. Polymarket US is the CFTC-regulated exchange for US residents, built on the derivatives exchange Polymarket bought in 2025; it runs as an app and accepts dollars through ordinary payment rails. The international exchange at polymarket.com is crypto-native: you send stablecoins or other supported tokens to a deposit address, and the balance you trade with is a token on the Polygon blockchain. Polymarket restricts US users from the international platform, so most US readers only ever see the first route. Whether either venue is open to you also depends on your state; our Polymarket legality guide covers that.

The two routes share one principle: Polymarket says it does not charge its own fee to deposit or withdraw. Costs come from elsewhere, from a card or payment processor on the US app, or from blockchain network fees and bridges on the international exchange. The sections below go through each.

Polymarket US: payment methods and limits

As of October 2026, third-party guides that track the US app list seven funding methods. The table summarises the methods, processing times and daily limits as reported in a guide updated October 29, 2026; treat it as a snapshot and confirm in the app, because limits are set by Polymarket and its processors and can change.

Method	Processing time	Daily limit
Apple Pay	Instant	$50,000
Credit or debit card	Instant	$50,000
PayPal	Instant	$50,000
Venmo	Instant	$20,000
USDC (crypto)	Up to 10 minutes	$50,000
Online banking	1–3 business days	$50,000
Wire transfer	1–3 business days	No stated limit

Polymarket does not add a deposit fee on the US app, but the processor may. Card issuers in particular sometimes treat a deposit to a trading or betting-adjacent venue as a cash advance, which carries its own fee and interest from the first day. That charge comes from your bank, not from Polymarket, and it will not appear in the app. If you plan to deposit by credit card, check your card agreement first; a bank transfer is slower but avoids that risk.

polymarket.com: networks, tokens and pUSD

On the international exchange each account has a fixed crypto deposit address per network family. According to Polymarket’s deposit documentation, supported source chains include Ethereum and other EVM networks such as Arbitrum, Base and Optimism, plus Solana, Bitcoin and Tron. USDC (native) and USDC.e (bridged) are the core source assets, and the docs tell you to check the supported-assets list before sending anything else.

Whatever you send, the balance you trade with is pUSD (Polymarket USD). Polymarket’s pUSD documentation describes it as a standard ERC-20 token on Polygon mainnet with six decimals, backed by USDC and enforced on-chain, with no algorithmic peg and no partial reserve. Deposits are “automatically converted to pUSD on Polygon”; under the hood, USDC.e is wrapped into pUSD through a contract Polymarket calls the Collateral Onramp, and unwrapped through the Collateral Offramp when you withdraw. Polymarket says pUSD is meant for use inside Polymarket and is not planned for listing on outside exchanges.

Two practical consequences follow. First, your position values and fees are effectively denominated in dollars, so you are not taking crypto price risk on your cash balance unless you deposit a volatile token. Second, if you send a token other than USDC, it is converted on the way in, and any conversion spread is a real cost even though Polymarket does not label it a fee.

Minimums, large deposits and gas

Minimums. Polymarket’s help centre lists a $20 minimum for deposits on Ethereum and $3 on Solana, and says deposits below the minimum stay pending until the cumulative amount reaches it. Other networks have their own minimums in the supported-assets list. Deposits below a minimum are not lost, but they are not usable either until you top up.

Large deposits. For deposits above $50,000 from any chain other than Polygon, Polymarket’s large-deposit guidance recommends a third-party bridge, naming DeBridge, Across and Portal, sent directly to your Polymarket Polygon deposit address, to reduce slippage. Polymarket says it is not affiliated with or responsible for those bridges, and the bridges set their own fees.

Gas. Who pays blockchain fees depends on wallet type. Polymarket’s gasless transactions page says smart wallets, which include the Deposit Wallet that is the default for accounts created on or after May 4, 2026 as well as older Proxy and Safe wallets, have gas covered by Polymarket’s relayer for approvals, transfers and position management. Accounts that trade directly from an externally owned wallet pay gas themselves in POL, Polygon’s native token. Sending funds to Polymarket from another chain always costs whatever that chain charges the sender.

A worked example

Suppose you hold USDC and want $25 of trading balance on polymarket.com.

Ethereum route. You send $15 of USDC on Ethereum. That is below the $20 Ethereum minimum, so it sits as pending. You then send another $10. The cumulative $25 clears the minimum and is credited as 25 pUSD. Polymarket charges nothing, but you paid Ethereum network fees twice, once per transfer.
Solana route. You send $25 of USDC on Solana. It clears the $3 minimum on the first transfer and arrives as 25 pUSD, with one Solana network fee.
Large transfer. If instead you were moving $60,000 from Arbitrum, the amount is above the $50,000 threshold, so the docs point you to a third-party bridge into your Polygon deposit address. The bridge’s fee and any slippage are your cost.

The lesson is that the cheapest deposit is usually the one that clears the minimum in a single transfer on a low-fee network, and that small, repeated deposits on Ethereum are the most expensive way to fund an account even though Polymarket’s own charge is zero in every case.

Where the real costs are

Deposits are rarely the biggest cost. Trading fees are. Polymarket charges taker fees on some market categories and not others, with the highest rate near a 50% price and the lowest near 1% or 99%; geopolitics markets have been fee-free. Our Kalshi vs Polymarket fees comparison works through the schedules, and the prediction market fee calculator shows the cost of a specific trade. Withdrawals mirror deposits: no Polymarket fee, but network or processor costs may apply, and on the international exchange pUSD is unwrapped back to USDC before it leaves.

What this guide does not cover

This guide explains mechanics as of October 2026 using Polymarket’s own documentation and help centre, plus one dated third-party snapshot for US app limits. It does not cover tax treatment of deposits, conversions or winnings, state-by-state availability, or the security of third-party bridges and wallets. Polymarket changes minimums, supported assets and fee schedules from time to time; the deposit screen in the app or site is the final word. Nothing here is a recommendation to deposit or trade.

Frequently asked questions

Does Polymarket charge a deposit fee?

Polymarket says it does not charge deposit or withdrawal fees. You can still pay card or processor fees on the US app and blockchain network or bridge fees on the international exchange.

What is pUSD on Polymarket?

pUSD (Polymarket USD) is the collateral token used for trading on polymarket.com. It is an ERC-20 token on Polygon with six decimals, backed by USDC. Deposits are converted to pUSD automatically.

What is the minimum deposit on Polymarket?

Polymarket’s help centre lists $20 for Ethereum and $3 for Solana as of October 2026. Smaller deposits stay pending until the cumulative amount reaches the minimum.

Do I need POL for gas on Polymarket?

Not if you use a Polymarket smart wallet, including the default Deposit Wallet: Polymarket’s relayer covers gas for approvals and transfers. Accounts trading directly from their own externally owned wallet pay gas in POL.

Can I deposit with a credit card on Polymarket US?

Third-party guides list credit and debit cards, Apple Pay, PayPal, Venmo, online banking, wire and USDC as US app funding methods as of October 2026. Your card issuer may treat the deposit as a cash advance.