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zkSync Tax Software Compared

Based on L2 support and user feedback from forums.

Koinly

Best for zkSync
  • ✓ zkSync Era support — native integration for the main zkSync network
  • ✓ 200+ blockchains — great if you use multiple L2s and chains
  • ✓ Bridge transaction handling — can mark transfers to avoid false gains
  • ✓ 900+ exchange integrations — connect CEX and DEX activity

See pricing — free preview available.

Try Koinly →

Alternative: CoinLedger

  • ✓ EVM-compatible chain support including zkSync Era
  • ✓ Clean interface for reviewing transactions
  • ✓ Manual merge tool for bridge transaction matching
  • − Fewer total blockchain integrations than Koinly

See pricing — use code CRYPTOTAX10 for 10% off.

Try CoinLedger →

Both tools support zkSync Era. Choose based on your overall chain usage and preferences.

zkSync Tax Issues to Know

ZK Token Airdrop (June 2024)

The ZK airdrop distributed 3.675 billion tokens to eligible users. If you claimed, it's taxable as ordinary income at the fair market value on your claim date. The claim deadline was January 3, 2025 — unclaimed tokens were returned to the protocol. Check eligibility and claim status at ZK Nation.

zkSync Era vs zkSync Lite

zkSync Era (launched March 2023) is the main network with full smart contract support — this is where most DeFi activity happens. zkSync Lite is an older, simpler network for payments. Most tax tools fully support Era; Lite support may be limited. Check your tool's documentation if you used Lite.

Bridge Transactions

Moving ETH or tokens from Ethereum mainnet to zkSync Era is typically not a taxable event if you're transferring to yourself. However, tax software may incorrectly flag these as disposals. Use the "mark as transfer" feature to link the send and receive, avoiding phantom capital gains.

Security Incident (April 2025)

In April 2025, a compromised admin account led to 111 million unclaimed ZK tokens being minted from the airdrop contract. The tokens were later recovered. If you were affected, document everything carefully — stolen and recovered funds may have tax implications. Consult a tax professional.

FAQ

How do I report zkSync Era transactions for taxes?

Connect your zkSync Era wallet address to tax software like Koinly or CoinLedger. Both support zkSync Era as an EVM-compatible L2. Make sure to also import your Ethereum mainnet wallet to capture bridge transactions.

Is the ZK token airdrop taxable?

Yes. The ZK airdrop (June 2024) is taxable as ordinary income at the fair market value when you claimed it. The claim deadline was January 3, 2025. This value becomes your cost basis for future capital gains calculations.

How are bridge transactions taxed?

Bridging from Ethereum to zkSync Era is generally not taxable if you're transferring to your own wallet. Tax software may flag these as disposals — mark them as transfers to avoid false gains.

What's the difference between zkSync Era and zkSync Lite?

zkSync Era (launched March 2023) is the main network with full smart contract and DeFi support. zkSync Lite is an older payment-focused network with limited tax tool support. Most activity is on Era.

Sources

Last updated: February 2026