HKMA takes tough action: Mainland clients' investment accounts to be "retrospectively checked to 2023", new accounts must provide proof of offshore funds

The threshold for mainland clients coming to Hong Kong to open accounts for stock trading and fund purchases has been comprehensively raised! The Hong Kong Monetary Authority (HKMA) recently issued directives to all banks registered in Hong Kong, implementing 3 strict additional regulatory measures targeting "investment accounts" of mainland investors. Banks must not only comprehensively clear out zero-balance accounts that have been inactive over the past year, but also conduct a "retrospective review back to January 2023," forcibly closing accounts opened with forged documents. In addition, new clients must sign a letter of undertaking guaranteeing that the source of funds is "legal funds from outside the mainland." Currently, some Chinese-funded banks have begun turning away new account opening applications. (Background: Bloomberg: China "restricts top AI talent from leaving the country," executives from Alibaba and DeepSeek forced to surrender passports) (Context: Futu and Tiger plunged 40% in pre-market! China imposes "nuclear-grade" regulation: mainland clients can only sell, not buy, effective immediately) To prevent illegal cross-border capital flows and money laundering risks, the Hong Kong Monetary Authority (HKMA) has officially imposed strict tightening measures on investment accounts held by mainland investors in Hong Kong. According to a report by Cailianpress, regarding the recent reports that "some Hong Kong banks require signing additional declarations when opening investment accounts," the HKMA confirmed today (May 27, 2026) that the relevant regulatory circular was officially issued to all institutions (banks) registered in Hong Kong on May 22. This move aligns with the pace of the Securities and Futures Commission (SFC) of Hong Kong, aiming to comprehensively enhance account opening standards and prevent illegal cross-border securities activities. According to the HKMA's requirements, when opening and managing investment accounts for "individual mainland investors" using Chinese resident identity cards or passports, banks must strictly implement the following 3 measures: Banks must launch a dedicated review, focusing on identifying investment accounts opened since January 2023 using suspicious or forged documents (such as identification, proof of accounts at other banks). Once verified, banks will suspend new transactions on such accounts and require account closure within 6 months. Even more severely, the relevant clients will be permanently prohibited from reopening accounts at that bank or its affiliated institutions. For investment accounts with no asset balance as of May 22, 2026, and no client-initiated transaction records over the past 12 months, banks must complete the review within 3 months. Clients must update their KYC (Know Your Customer) information; if they fail to do so, the account will be suspended and closed within 6 months. In the future, if mainland investors wish to newly open an investment account, they must provide a written declaration confirming that "all funds used for investment activities and settlement come from legal sources outside mainland China." At the same time, deposits and withdrawals of funds are limited to using accounts opened by the client in their own name at licensed banks in Hong Kong. If funds are subsequently found to be illegal or to have violated mainland capital controls, the bank will immediately close the account. The HKMA specifically clarified the scope of impact in the document to avoid excessive market panic. These three additional regulatory measures "apply only to investment accounts." Non-investment everyday financial services (such as: ordinary savings deposits, payments, loans, and credit cards) are completely outside the scope of these measures. In addition, the regulations only target "individual clients"; corporate and institutional clients are not affected; and compliant arrangements officially promoted by the Guangdong-Hong Kong-Macao Greater Bay Area, such as the "Cross-boundary Wealth Management Connect (Southbound Scheme)," will continue to be implemented according to existing rules. It is understood that this iron-fisted policy has already triggered effects in the banking sector. Currently, some Chinese-funded banks (such as BOC Hong Kong) have begun strictly restricting or even "turning away" clients holding only mainland identity cards from opening new investment accounts, while foreign banks have stated they will strictly follow the new compliance procedures.