About
The Fourth Accountant Ltd was established in 2023 and is based in London. The Fourth Accountant Ltd specialises in leveraging AI and software solutions to automate the accounting treatment and tax computations of complex, high-volume crypto transactions. The Fourth Accountant also provides additional fractional CFO and consultancy services with respect to (token and equity-based) LTIPs.
Experience and qualifications
The Fourth Accountant Ltd was founded by Vincent Onuchi, a Fellow of the Association of Chartered and Certified Accountants (FCCA). Vincent Onuchi has over a decade of experience building and scaling finance functions within the FinTech and blockchain sectors, enabling Founders and blockchain projects to scale their business with confidence.
Client focus
The Fourth Accountant Ltd provides a wide range of fractional accounting and CFO services to UK-based individuals and small-to-medium-sized companies, leveraging AI and blockchain technology to enable them to achieve their business and personal financial goals.
Service offerings
The Fourth Accountant can assist with:
ICO support
Crypto-accounting and reporting (e.g., mining, staking, liquidity pools, bridged transactions, NFTs, airdrops, smart contracts, high-volume trading, etc.)
Crypto-accounting system implementations and integrations
Crypto transaction tax calculations
Fractional CFO support (e.g., financial modelling, cash-flow projections, Board reporting, consolidations, etc.)
Share option accounting
Business valuations
Group restructure accounting (inc. mergers and acquisitions)
Equity table management

