Etherscan Multi-chain Tax Reporting

CSVDeFi

Import your Etherscan Multi-chain transaction history into dTax and calculate capital gains, income, and generate IRS Form 8949 — automatically.

CSV Format

Multi-chain EVM Explorer CSV (Polygon, Arbitrum, Base, etc.)

API Sync

CSV only

DeFi Support

On-chain DeFi parsing

Auto-detect

Format detected automatically

Official Website

etherscan.io

How to Export from Etherscan Multi-chain

  1. 1

    Go to the relevant chain explorer (polygonscan.com, arbiscan.io, basescan.org, etc.).

  2. 2

    Search your wallet address and download the CSV export.

  3. 3

    Upload to dTax — EVM explorer formats are auto-detected across 16 supported chains.

Import to dTax

  1. 1

    Sign up at getdtax.com (free — no credit card needed).

  2. 2

    Go to Data Sources → Add Source → Upload CSV.

  3. 3

    Upload your CSV file. The format is auto-detected.

  4. 4

    dTax parses, classifies, and deduplicates all transactions.

  5. 5

    Go to Tax → Calculate to generate your Form 8949 and Schedule D.

Etherscan Multi-chain FAQ

Which EVM chains does dTax support?

dTax supports 16 EVM-compatible chains: Ethereum, Polygon, Arbitrum, Optimism, Base, Avalanche, BSC, Fantom, Cronos, Linea, Scroll, and more. Upload the CSV from any chain's block explorer.

Also supported

Ready to calculate your Etherscan Multi-chain taxes?

Free plan: unlimited transaction imports. PRO ($49/year) unlocks all 13 cost basis methods and full report export.