Ethereum Taxes US 2026 – ETH Capital Gains, Staking & DeFi Guide

Ethereum creates more tax scenarios than almost any other crypto – staking, DeFi, NFTs, Layer 2, gas fees. This guide covers all IRS rules specific to ETH holders.

Basic ETH Capital Gains

• Selling ETH for USD: Capital gain/loss
• Trading ETH for any token: Taxable disposal at current FMV
• Paying ETH for NFTs: Taxable disposal of ETH
• Sending to another person: Taxable if at a gain

Gas Fees: Tax Treatment

• At purchase: Add to cost basis → reduces future gains
• At sale: Reduce proceeds → reduces current gain
• DeFi interactions: May be deductible as investment expenses
• Failed transactions: Deductible as capital loss
• Active DeFi users can accumulate thousands in gas fees – always track them

ETH Staking Income

• Per IRS Rev. Rul. 2023-14: Staking rewards = ordinary income at FMV when received
• Solo validators: Rewards every ~6.4 minutes – significant record-keeping burden
• Lido stETH: Daily rebasing = daily income events
• Exchange staking (Coinbase, Kraken): 1099-MISC if over $600

The Ethereum Merge: No Tax Event

• The September 2022 Merge (PoW → PoS): Not a taxable event for ETH holders
• Cost basis and holding period unchanged
• EthPoW fork (ETHW) received: Potentially taxable income at FMV

Layer 2 Networks (Arbitrum, Optimism, Base)

• Bridging ETH to L2: Not taxable (same asset, different network)
• L2 transactions: Same rules as mainnet
• L2 gas fees: Same deductibility rules

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Disclaimer: This article is for general informational purposes only and does not constitute tax advice. For individual tax advice, consult a licensed tax professional.