OnChain Accounting

OnChain Accounting (OCA) is a specialized cryptocurrency accounting firm serving B2B clients globally from New York City. The company provides end-to-end crypto tax and financial accounting services for businesses operating in the digital asset economy, including trading firms, Web3 startups, DAOs, DeFi protocols, and blockchain companies.

Core Services

OCA delivers comprehensive crypto accounting solutions designed for high-volume, multi-chain environments. Their services include crypto tax compliance and preparation, crypto bookkeeping, DeFi and NFT accounting, crypto mining accounting, transaction reconciliation across wallets and exchanges, and outsourced CFO services for Web3 teams. The firm specializes in managing complex transaction datasets spanning multiple blockchains, wallets, exchanges, and DeFi protocols.

Key Strengths

The firm has reconciled over 5 billion blockchain transactions, categorized 750+ asset types, completed 50+ crypto tax filings, and integrated with 75+ blockchains. Their team comprises crypto-native accountants, CPAs, and tax professionals who understand the unique challenges of blockchain accounting, including DeFi yield farming, liquidity provision, staking rewards, NFT sales, airdrops, and protocol incentives. OCA maintains audit-ready documentation and applies IRS-compliant cost basis methods, tax-loss harvesting, and other legal strategies to reduce liability.

Notable Capabilities

OCA has been featured in major financial publications including MSN, Yahoo Finance, Benzinga, and Investing.com. The firm works with proprietary trading firms, professional crypto traders, NFT businesses, DeFi treasury participants, Web3 startups, and blockchain companies. They provide real-time tracking and monitoring systems, automated reconciliation workflows, and structured financial reporting aligned with GAAP/IFRS standards.

Why Choose OnChain Accounting

Businesses choose OCA for their deep expertise in crypto-native accounting, ability to handle multi-wallet and multi-chain complexity, proactive tax planning strategies, and investor-ready financial reporting. The firm reduces compliance risk by staying current with evolving IRS guidance, state-level crypto rules, and international tax developments. Their crypto-specific tools and methodologies ensure accuracy from day one, preventing audits, penalties, and missed tax advantages while providing the financial clarity needed for informed business decisions.