To get funds onto Polygon PoS, you send them through a bridge: the canonical one is reached through the Polygon Portal, and fast third-party routes exist too. On arrival you pay gas in POL, the token that replaced MATIC in September 2024, and every swap, mint, or game move typically costs a tiny fraction of Ethereum mainnet gas. This guide shows how to bridge to Polygon step by step, why the return trip to Ethereum is slower, which USDC to receive, and the Polygon-specific traps that catch first-timers.
New to this topic? Our Crypto Bridging hub lays out the options and links every related guide.
- What it is: Bridging deposits assets from Ethereum onto Polygon for cheap, fast transactions.
- Official route: The Polygon Portal (the official bridge interface) is the canonical option.
- You need: A self-custody wallet like MetaMask, ETH for gas on Ethereum, and a little POL on Polygon for later transactions.
- Speed: Deposits typically arrive in minutes; withdrawal timing depends on which bridge mode you use.
- Polygon quirk: Withdrawals to Ethereum through the canonical bridge wait for a checkpoint and then need a second “claim” transaction on Ethereum.
What bridging to Polygon means and why people do it
Polygon is a scaling network designed to make onchain activity cheap and fast while staying connected to Ethereum. It hosts a large ecosystem of apps, and its native gas token is POL. Your assets do not appear on Polygon automatically; a crypto bridge locks or transfers your tokens on the source chain and credits the equivalent on Polygon.
People bridge to Polygon mainly for cost and access. Transactions that cost meaningful gas on Ethereum often cost cents on Polygon. The network has a deep DeFi ecosystem, popular NFT and gaming projects, and enterprise integrations. Traders bridge to use DEXs and lending markets, collectors bridge for cheap minting, and yield seekers bridge to chase opportunities. For background on the network and its token, read our explainer on what Polygon is. If you would rather buy the token directly, see how to buy Polygon.
One naming point clears up a lot of confusion. “Polygon” in this guide means Polygon PoS, the main chain. Polygon Labs also ran a separate network, Polygon zkEVM, which was deprecated and shut down on July 1, 2026, so older tutorials that send you to zkEVM are out of date. Polygon PoS also plugs into the Agglayer, Polygon’s cross-chain interoperability layer, but a normal deposit never touches it directly.
Before you start
- A self-custody wallet. MetaMask is widely supported, and because Polygon is EVM-compatible, the same address works on Ethereum and Polygon. New to it? See our MetaMask guide.
- Gas on both sides. You need ETH on Ethereum to pay for the deposit. After bridging, you will want a little POL on Polygon to pay for transactions there, since POL is the gas token.
- Know which USDC you want. Polygon PoS carries two dollar tokens with similar names. Native USDC is issued by Circle directly on Polygon; USDC.e (sometimes shown as “USDC (PoS)”) is the older version minted by the bridge from Ethereum USDC. Circle no longer supports USDC.e on its own accounts, so prefer native USDC and check the contract address.
- POL, not MATIC. If your wallet still labels Polygon’s gas token as MATIC, update the network settings or RPC. Balances on Polygon PoS were converted automatically.
Step-by-step: bridge to Polygon
The Polygon Portal is our worked example below; third-party routes follow nearly identical screens, with differences noted where they matter.
- Pick your route. The Portal sends funds through Polygon’s canonical PoS bridge contracts. Across, Bungee, and Jumper route through their own liquidity instead.
- Connect from a bookmarked URL. Open the Portal from a link you saved yourself, not from a search ad, then connect MetaMask and check that the address shown matches your wallet.
- Set Ethereum as “from” and Polygon PoS as “to”. Make sure the destination says Polygon PoS rather than a retired zkEVM option, then pick ETH, USDC, or another token from the list.
- Start with a test amount. A few dollars proves the token lands where you expect.
- Read the summary screen. Look at the Ethereum gas estimate, any service fee, the token you will receive on Polygon (native USDC or USDC.e, for example), and the quoted arrival time.
- Grant a token allowance if asked. For tokens such as USDC, the first deposit needs an approval transaction before the deposit itself; plain ETH skips this.
- Confirm the transaction. Sign the deposit in your wallet. Your funds leave Ethereum and the bridge begins processing.
- Let the state sync finish. Canonical deposits reach Polygon through a validator relay called state sync, which Polygon’s docs put at roughly 7 to 8 minutes once the Ethereum transaction is final. Switch MetaMask to Polygon and, if a token does not show, import it by its contract address.
Which bridge to use
- Polygon Portal (official). The canonical interface to Polygon’s official bridge contracts. Deposits are quick. Withdrawal timing depends on the bridge mode: faster on newer Polygon bridging routes, while legacy proof-of-stake-style withdrawals can involve a longer checkpoint and exit process. The interface shows the expected time.
- Bungee / Jumper. These aggregators compare several bridges and swap venues in one quote. Useful when your funds start on Arbitrum, Base, or another chain, and some routes can deliver part of the transfer as POL for gas.
- Across. Relayers front you the funds on the destination chain and get repaid later from a shared pool, so a Polygon-to-Ethereum transfer can settle without waiting for Polygon’s checkpoint.
- Exchange withdrawal. Many large exchanges let you pick Polygon as the withdrawal network for USDC and POL. Coinbase, for example, moved its Polygon USDC withdrawals to native USDC in 2023. This route skips Ethereum gas entirely.
For most first-time deposits, the official Polygon Portal is the simplest and safest. If you need quicker withdrawals or are coming from a non-Ethereum chain, a reputable aggregator can save time for a modest fee.
Fees, time, and what to expect
On a canonical deposit, almost all of what you pay is the Ethereum transaction: one approval for tokens like USDC, plus the deposit itself, both priced by mainnet congestion. The Portal does not stack a meaningful protocol fee on top, while third-party routes build a spread or relayer fee into their quote. Once you are on Polygon, gas is paid in POL and is usually tiny. Gas moves every block, so trust the live estimate on the confirmation screen.
On timing, deposits from Ethereum to Polygon usually finalize in minutes. Withdrawals back to Ethereum vary by route: newer bridging modes can be faster, while older proof-based withdrawals may take longer due to checkpointing and an exit step. If you need liquidity quickly, a third-party fast bridge can advance funds and reclaim them later for a fee. Always compare the total cost across options and match it to how soon you need the funds.
In practice, a canonical withdrawal has two stages. First you burn the tokens on Polygon, which is cheap. Then you wait for a checkpoint, a periodic snapshot of Polygon blocks that validators submit to Ethereum roughly every 30 minutes, after which the Portal asks you to sign a claim transaction on Ethereum and pay mainnet gas. Most guides put the whole process at about 45 minutes to 3 hours. Closed the tab? Reopen the Portal’s transaction history and finish the claim.
Risks and how to bridge safely
- Look-alike Portal domains. Fake “Polygon bridge” pages often appear as paid search results. Use your own bookmark and check the domain spelling.
- Fake migration and claim prompts. The MATIC-to-POL upgrade is done automatically on Polygon PoS. A site asking you to “migrate” or “claim POL” by signing a permit or approving unlimited spending is trying to drain your wallet.
- Prune old allowances. Every bridge or dApp you approve keeps permission to move that token until you revoke it. Ethereum and Polygon keep separate lists, so check both.
- Wrong-token deposits. Sending USDC.e to an exchange or account that only credits native USDC can leave funds stuck. Check which version the receiver accepts.
- Bridge contract exposure. The canonical bridge holds a large pool of locked assets, and third-party bridges add their own contracts. Stick to well-known routes and split very large transfers.
When the deposit shows up, our coins hub is a good starting point for researching tokens and apps that live on Polygon PoS.
Common bridging mistakes to avoid
The most common Polygon bridging mistake is arriving with no POL for gas. Unlike L2s where ETH pays for gas, Polygon uses POL, so even if you bridge stablecoins or ETH, you still need a little POL to move anything. Many newcomers get stuck here. Plan to acquire a small amount of POL, either by bridging a route that delivers gas on arrival or by swapping a portion once you land.
A second mistake is using the wrong token version. Polygon supports native USDC, but older bridged variants exist and are not always interchangeable across apps. Confirm you are receiving the canonical token. A third error is panicking over a slow transfer. Deposits usually clear in minutes, but congestion or a legacy withdrawal route can take longer. Do not resubmit; copy your transaction hash and check the bridge tracker or a block explorer first. And never bridge because an unsolicited message or fake airdrop told you to, as those lead to phishing clones of real bridges.
After you bridge: getting started on Polygon
After your funds arrive, set Polygon as the active network in your wallet and make sure you hold a little POL for gas. Every action, from swapping to approving a token, costs a small amount of POL. From there you can use Polygon-native DEXs to trade, supply assets to lending markets to earn yield, mint NFTs cheaply, or try gaming and consumer apps. If you plan to use multiple apps, bridging one larger amount can be more efficient than several small transfers, since each transfer carries its own source-chain gas cost. Keep your bridge bookmarks handy for when you want to move funds back to Ethereum, and review the expected withdrawal time the interface shows for your chosen route.
Once your funds have arrived, our list of established Polygon DeFi protocols explains what the main exchanges, lending markets and yield apps on the network actually do.
FAQ
How long does it take to bridge to Polygon?
Going in is quick: Polygon’s docs put the state-sync relay at roughly 7 to 8 minutes after your Ethereum transaction is final, so most deposits land well within half an hour. Coming back is slower. A canonical withdrawal waits for a checkpoint on Ethereum and then needs a claim transaction, commonly about 45 minutes to 3 hours in total. Relayer bridges like Across can shorten the return trip.
How much does it cost to bridge to Polygon?
A Portal deposit costs mainly Ethereum gas: an approval for tokens like USDC plus the deposit transaction. Third-party bridges add a spread or relayer fee instead. A canonical withdrawal costs Ethereum gas again for the claim, while exchange withdrawals to the Polygon network avoid mainnet gas. Activity on Polygon itself is paid in POL and usually very cheap.
Do I need POL to use Polygon after bridging?
Yes. POL is Polygon’s gas token, so you need a small amount to pay for transactions there. Many users bridge a little extra value and swap a portion to POL, or use a bridge route that delivers some gas on arrival. Without POL you will be unable to move tokens or interact with apps.
Is the Polygon Portal safe?
The Portal is Polygon’s own front end for its canonical PoS bridge, one of the longest-running and most heavily used bridges in crypto. The bigger day-to-day risk is impersonation: cloned Portal sites and fake POL migration pages. Use a bookmarked URL, never sign a “claim” you did not start, and check token versions before sending to exchanges.
Crypto is volatile and risky; this is education, not financial advice. Do your own research.