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Hong Kong passes OECD crypto reporting law, data collection starts 2027
Legislative Council approves CARF and amended CRS rules, crypto providers must collect customer data from 2027 and tax authorities begin exchanges in 2028.
Key takeaways
- Collection begins in 2027. Exchanges, brokers, dealers and some crypto ATM operators with a Hong Kong reporting connection must register and gather customer tax-residence and transaction data.
- Exchanges start in 2028. Hong Kong will swap CARF data with eligible partner jurisdictions annually, subject to confidentiality and data-security standards.
- No new crypto tax. The legislation adds reporting and due-diligence obligations; it does not impose an additional tax on digital asset transactions.
What happened
Hong Kong's Legislative Council approved the Inland Revenue (Amendment) (Crypto-Asset Reporting Framework and Amended Common Reporting Standard) Bill 2026 on Nov. 4, 2026, according to a government announcement. Crypto.news and CoinGape reported that the law adopts the OECD's Crypto-Asset Reporting Framework, known as CARF, and updates the city's Common Reporting Standard.
Covered crypto service providers will have to collect customer and transaction details from January 2027 and submit them to the Inland Revenue Department. The department will then exchange the information annually with partner jurisdictions starting in 2028. The government said the exchanges would be reciprocal and would require participating jurisdictions to maintain confidentiality and data-security standards.
The amended CRS will take effect in 2028, with the first international exchanges under the updated rules scheduled for 2029. Financial institutions face revised due-diligence and reporting duties covering account holders, controlling persons and financial accounts. The legislation also includes provisions intended to prevent duplicate reporting where crypto transactions fall under both CARF and the revised CRS.
Why it matters
The legislation brings Hong Kong's crypto sector into a global tax-transparency system built around OECD standards. For crypto businesses, compliance will require registration, customer due diligence, recordkeeping and reporting. For users, service providers will need to collect tax residence and taxpayer identification numbers, among other details.
Officials framed the move as a reputational and confidence measure. Financial Services and the Treasury Secretary Christopher Hui said alignment with international standards is important to Hong Kong's standing as an international financial and commercial centre and could strengthen confidence among institutions, crypto firms and digital-asset users. The law does not create a separate crypto tax, according to CoinGape's report.
What the data shows
Scope is broad but not universal. CARF covers exchanges, brokers, dealers and certain crypto ATM operators. Reportable transactions include crypto-to-fiat exchanges, trades between different crypto assets and some transfers involving external wallets. The framework applies to fungible and non-fungible crypto assets usable for payments or investments, while central bank digital currencies, specified electronic money products and assets that cannot be used for payments or investments are excluded. Crypto.news cited Chainalysis's estimate that potentially taxable onchain cryptocurrency activity exceeded $457 billion globally in 2025; it said 86% of activity remained outside the framework's practical reporting coverage, including decentralized exchange transactions, peer-to-peer transfers, onchain income and crypto payments.
Background
The bill followed a consultation from December 2025 to February 2026 with financial institutions, professional bodies and crypto businesses. The government published the proposed legislation in May and introduced it to lawmakers in June. Hong Kong has exchanged financial account information under the CRS since 2018.
The crypto reporting rules sit alongside other digital-asset regulatory work in Hong Kong. The reports note existing licensing rules for crypto trading platforms and stablecoin issuers, and a September policy address that set out plans to expand regulated stablecoin trading and tokenized real-world assets, plus additional surveillance of digital-asset businesses.
What to watch
Implementation details remain to be filled in. The government said lists of participating jurisdictions would be published later, and the Inland Revenue Department has set up a task force and will issue guidance and technical support. Businesses will need to prepare for registration from January 2027 and for customer tax-residency declarations, with CoinGape reporting that existing customers have until January 2028. How effectively the framework captures activity outside regulated providers is also an open question.
Questions readers ask
Does Hong Kong's new law impose a tax on crypto transactions?
No. The legislation creates reporting and due-diligence obligations. CoinGape reported that it does not set up an additional tax on cryptocurrency transactions.
Which firms must report?
Exchanges, brokers, dealers and certain crypto ATM operators with a reporting connection to Hong Kong. They must register, conduct customer due diligence, keep records and report qualifying transactions to the Inland Revenue Department.
When does information sharing begin?
Covered firms collect data from 2027. Hong Kong's tax authority begins automatic exchanges with eligible partner jurisdictions in 2028. The amended CRS takes effect in 2028, with first exchanges in 2029.
