Hong Kong's Legislative Council passed the Inland Revenue (Amendment) (Crypto-Asset Reporting Framework and Amended Common Reporting Standard) Bill 2026 on 4 November 2026. The law writes the OECD's crypto tax transparency standard into local rules: crypto-asset service providers that meet Hong Kong's nexus rules must register, run due diligence on customers and report transactions to the Inland Revenue Department, which then exchanges that data with partner jurisdictions.

The clock starts on 1 January 2027, when the CARF rules take effect. The amended Common Reporting Standard follows on 1 January 2028. Hong Kong has committed to its first automatic exchange of crypto-asset tax information in 2028, conditional on domestic legislation being in place by 2026, and that legislation is now passed.

This is not a new tax on your trades. CARF sets due diligence and annual reporting duties for providers, so tax authorities get information they can use. It does not set an individual user's tax bill.

Key Facts

  • The bill was gazetted on 22 May 2026 and had its First Reading on 3 June 2026, before passing on 4 November 2026. (IRD)
  • CARF applies from 1 January 2027; the amended CRS from 1 January 2028.
  • Reporting providers must register in the new CARF Portal by 31 January of the year after they first meet the nexus rules.
  • Records must be kept for six years after the due date of the relevant CARF return. (IRD)
  • The first automatic exchange of crypto-asset information under CARF is due in 2028, with the amended CRS exchanges starting in 2029. (HK Government)

What Providers Have to Report

The IRD lists three reportable transaction types: any exchange between crypto-assets and fiat currencies, any exchange between one or more forms of crypto-assets, and transfers of crypto-assets, including transfers to external wallet addresses. Alongside those, providers must collect identifying information about reportable customers, including tax residence and taxpayer identification numbers.

The definition of a relevant crypto-asset is functional. It covers fungible and non-fungible tokens, with three exclusions: central bank digital currencies, specified electronic money products, and crypto-assets that a provider determines cannot be used for payment or investment purposes.

Not every crypto business is caught. The IRD's list of reporting providers includes dealers buying and selling for their own account, crypto ATM operators, exchanges acting as market makers and taking a bid-ask spread, and brokers acting for clients to complete orders.

Hong Kong has run annual automatic exchanges of financial account information under the CRS since 2018, so the machinery for swapping this data already exists. The government says exchanges will be reciprocal and subject to data confidentiality and security safeguards.

Registration, Records and Penalties

Registration is due on or before 31 January of the calendar year following the year a provider first meets any nexus rule criterion. Pre-existing crypto-asset users need a different step: the provider must obtain self-certification and confirm its reasonableness within 12 months after the CARF rules come into operation.

The IRD says it will issue guidance and has set up a dedicated team to give the industry technical support and answer enquiries. It also says it will develop a CARF reporting portal and publish the data schema that defines the reporting format.

On enforcement, Hong Kong proposes penalties for providers that fail registration, due diligence or reporting duties, give incorrect or incomplete information, or fail to tell the department about a misleading, false or inaccurate return. An administrative penalty mechanism is proposed as an alternative to prosecution for certain offences, with a right of appeal to the independent Board of Review. No penalty amounts appear on the IRD page.

How Much Activity CARF Reaches

Chainalysis estimated that potentially taxable onchain cryptocurrency activity exceeded $457 billion globally in 2025. Of that, transactions within CARF's practical reach were around 14%, the analytics firm said, which puts most of the activity outside what the framework can actually capture today.

What Is Still Open

The bill followed a consultation between December 2025 and February 2026, after which the government published the proposed legislation in May and introduced it to lawmakers in June. What is not yet public is the date for the IRD's guidance or the CARF Portal launch, the size of any penalties, and which jurisdictions will be exchange partners. The government says exchanges will happen with "suitable partners" on a reciprocal basis, and no specific country is named.

The tax bill lands alongside Hong Kong's wider crypto rulebook, where the new licensing regime keeps an end-2026 deadline. For exchanges and brokers with Hong Kong customers, the practical date to circle is 1 January 2027, when the data collection starts, and 31 January 2028, when the first registration deadline for most early movers falls.