@O2K is a tax and legal consulting firm established in 2020 in Amsterdam, specialised in crypto assets, international taxation, and regulation.

We advise individuals, companies, institutions, and governments on complex cross-border matters involving crypto and traditional assets. Our work sits at the intersection of international tax law, financial regulation, and emerging technologies, with a strong focus on practical, defensible solutions.

@O2K provides one-on-one advisory services and tailor-made training, supporting clients throughout the full lifecycle of digital assets — from structuring and compliance to regulatory engagement and audits.

Our services include:
• International crypto tax, accounting, and compliance
• Crypto regulation, legal advice, and legal opinions
• KYC & AML frameworks for crypto and Web3 businesses
• Company formation, structuring, management, and liquidation
• Crypto licensing and regulatory authorisations in Europe
• NFT valuation and legal opinions
• International tax planning for digital nomads
• Part-time Head of Tax and Head of Legal roles

In addition to advisory work, @O2K developed the “Ultimate Guide to Taxation and Regulation of Crypto Assets”, a 10-lesson professional course. It is the only course on the market that approaches crypto taxation and regulation from a fully international tax perspective.

Key focus areas:
Crypto tax · Crypto regulation · Crypto law · Crypto compliance · Cryptocurrency taxation · International tax · Web3 regulation · Digital assets · Cross-border structuring

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