Hong Kong Passes Crypto Tax Reporting Law, Data Collection Starts 2027

Hong Kong lawmakers passed a bill Wednesday that makes crypto service providers collect customer tax data starting Jan. 1, 2027, the government said. The city's tax office will begin sharing that data with partner jurisdictions in 2028.

The law brings in the Crypto-Asset Reporting Framework, or CARF, a standard the OECD published in 2023. The OECD is the Paris-based group of mostly advanced economies that also wrote the global rules for swapping bank account data. CARF creates no new tax. It lets tax offices see crypto activity that existing tax rules already cover.

How the reporting works

Exchanges, brokers and similar firms with a qualifying link to Hong Kong must run due-diligence checks on customers, collect the required transaction information and report it to the Inland Revenue Department once a year. The department then exchanges it automatically with partner tax authorities, on a reciprocal basis, the government said.

Every covered provider must register on the department's CARF portal, even with nothing to report. Registration is due by Jan. 31 of the year after a firm first meets the law's tests, the IRD's guidance page says.

A second part updates the Common Reporting Standard, which Hong Kong has used since 2018 to swap financial account data. The amended version adds digital financial products. It takes effect in 2028, with the first exchanges under it in 2029.

Providers carry the cost

The paperwork falls on the platforms, which must build the checks and reports. The IRD said it will issue guidance and has set up a dedicated team to field industry questions. The government's release doesn't estimate how many firms are covered or what compliance will cost.

Christopher Hui, the secretary for financial services and the treasury, said matching the latest standards "will reinforce the confidence" of crypto service providers, financial institutions and digital asset users. The bill was gazetted May 22 and had its first reading on June 3, according to the IRD.

In our opinion: the bill's official title runs 13 words, and the part that matters fits in one date. From Jan. 1, 2027, Hong Kong platforms start building files on customers, and those files start crossing borders in 2028. The document worth chasing next is the IRD's guidance, because that's where providers learn exactly how much work they've signed up for.