Play Smart Mining: Withdraw from Ethermine to Polygon L2 with Zero Fees on Small Amounts

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Mining cryptocurrency can be rewarding, but high withdrawal fees often eat into profits—especially when moving small amounts. Ethermine (E Pool), one of the most popular Ethereum mining pools, offers a smart solution: L2 withdrawal via Polygon (Matic). This method allows miners to withdraw as little as 0.01 ETH with zero transaction fees paid by the miner—the pool covers the cost.

But here’s the catch: withdrawing to Polygon means your funds land on a different blockchain. If you're unfamiliar with cross-chain transfers or decentralized wallets like MetaMask, getting your assets into an exchange like OKX might seem daunting. The good news? With the right steps, it's simple, secure, and cost-efficient.

In this guide, we’ll walk through how to:

Let’s dive in.

Step 1: Configure Withdrawal to Polygon L2 on Ethermine

To minimize fees and enable small withdrawals, switch your Ethermine payout network from Ethereum Mainnet to Polygon (Matic) L2.

👉 Discover how to optimize your mining rewards with low-cost blockchain transfers.

  1. Go to Ethermine.org and log in using your wallet (e.g., MetaMask).
  2. Navigate to Payout Settings.
  3. Under "Network," select L2 – Polygon.
  4. Connect your MetaMask wallet and ensure it’s switched to the Polygon network.
  5. Add WETH (Wrapped ETH) as a token in MetaMask using its contract address:
    0x7ceb23fd6bc0add59e62ac25578270cff1b9f619
  6. Save your settings.

Once configured, whenever your balance reaches 0.01 ETH, Ethermine will automatically send the equivalent WETH to your MetaMask wallet on the Polygon chain—with no withdrawal fee.

You’ll see a balance like 0.01xxx WETH appear shortly after payout.

Step 2: Get MATIC for Gas Fees on Polygon

Even though Ethermine covers the initial transfer, any further actions on the Polygon network—like swapping or sending tokens—require MATIC as gas.

Here’s how to get started:

  1. Visit the official Polygon Wallet.
  2. Connect your MetaMask wallet.
  3. Click “Swap for gas token”.
  4. Choose ETH → MATIC, enter the amount (e.g., 1 MATIC is more than enough for multiple transactions).
  5. Click Approve, then confirm the swap.

After completion, check your MetaMask: you’ll see a reduced WETH balance and a new MATIC balance.

This small amount of MATIC ensures you can perform future transactions—swaps, approvals, transfers—with minimal cost.

Step 3: Swap WETH to USDT on a Decentralized Exchange

Now that you have both WETH and MATIC, it’s time to convert your mining rewards into a stablecoin like USDT, which is widely supported on exchanges.

We recommend using a trusted decentralized exchange (DEX) on Polygon such as Quickswap or SushiSwap.

Here’s how:

  1. Open quickswap.exchange (or similar DEX).
  2. Connect your MetaMask wallet.
  3. Select WETH as the input token and USDT as the output.
  4. Enter the amount to swap.
  5. Click Approve WETH, confirm in MetaMask.
  6. After approval, click Swap.

Transaction fees on Polygon are extremely low—usually around 0.0077 MATIC per swap, meaning even 1 MATIC lasts for dozens of transactions.

Once completed:

To view USDT in MetaMask:

Now you hold stable-value assets ready for transfer.

Step 4: Transfer USDT to OKX Exchange

With USDT in your MetaMask wallet on Polygon, you can now send it to OKX for trading, selling, or further investment.

👉 Learn how to securely deposit crypto into OKX with near-zero fees.

How to Find Your OKX Deposit Address:

  1. Log in to your OKX account (web or app).
  2. Go to Assets > Deposit.
  3. Search for USDT.
  4. Select the Polygon (MATIC) network as the deposit chain.
  5. Copy the provided deposit address.

⚠️ Important: Always double-check that both:

Sending on any other network may result in permanent loss.

Send from MetaMask:

  1. Open MetaMask and select USDT.
  2. Click Send.
  3. Paste the OKX deposit address.
  4. Enter the amount.
  5. Confirm the transaction (gas fee paid in MATIC).

Within minutes, your USDT will arrive in your OKX account. You’ll receive a notification, and the balance will reflect under your assets.

From here, you can trade, withdraw to fiat, or reinvest—all without ever paying high Ethereum mainnet fees.

Frequently Asked Questions (FAQ)

Q: Why use Polygon L2 instead of Ethereum mainnet for withdrawals?

A: Ethereum mainnet gas fees can exceed several dollars during peak times—more than the value of small mining payouts. Polygon L2 reduces fees dramatically, enabling profitable micro-withdrawals starting at 0.01 ETH with zero cost to you.

Q: Is it safe to swap WETH to USDT on decentralized exchanges?

A: Yes, platforms like Quickswap and SushiSwap are audited and widely used. Just ensure you’re visiting the real website and not a phishing clone. Never share your seed phrase.

Q: Can I withdraw directly from Ethermine to OKX?

A: Not directly. Ethermine sends to your personal wallet first (e.g., MetaMask). From there, you manually transfer to OKX after swapping to a compatible token like USDT.

Q: What happens if I send USDT via the wrong network?

A: Sending on an incorrect network (e.g., BSC instead of Polygon) may result in lost funds. Always verify the deposit network on OKX matches the withdrawal chain.

Q: Do I need to pay taxes on mining income?

A: In many jurisdictions, mined cryptocurrency is considered taxable income at fair market value when received. Consult a tax professional for guidance based on your location.

Final Tips for Smooth Mining Operations

👉 Maximize your mining returns with seamless low-fee withdrawals and instant exchange access.

By leveraging Ethermine’s Polygon L2 option and pairing it with efficient cross-chain tools, miners can finally make small-scale operations profitable. No more losing money to gas fees—just smooth, secure transfers from miner to market.

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Ethermine, Polygon L2, mining withdrawal, zero fee mining, WETH to USDT, MetaMask, OKX deposit, low gas fee blockchain