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Hong Kong Monetary Authority Orders Banks to Review Mainland-Opened Investment Accounts

Hong Kong Monetary Authority Orders Banks to Review Mainland-Opened Investment Accounts

According to people familiar with the matter, Hong Kong banks began tightening investment account openings from May 26 by requiring paper declarations, while savings account openings remain unaffected.

Fact Check
The HKMA's own Banking Regulatory Document Repository hosts the circular and Annex 1 dated 22 May 2026 (URLs above), directly confirming the directive. PANews and Caixin independently corroborate the three measures: closing suspicious-document accounts, removing zero-balance dormant mainland-investor accounts identified as of 22 May 2026, and requiring lawful-source-of-funds declarations for funds from outside mainland China. The only minor inaccuracy in the claim is that 22 May 2026 is the reference date for identifying zero-balance dormant accounts, not the deadline for their removal (banks have up to 6 months from that date to close them per Odaily/Caixin). The substantive content of the claim is accurate.
Summary

Hong Kong is tightening oversight of mainland-linked investment accounts across banks and brokerage platforms. The Hong Kong Monetary Authority has required banks to review mainland-opened investment accounts, close accounts opened with suspicious or forged documents, remove inactive zero-balance accounts by May 22, 2026, and obtain written declarations that investment funds come from lawful sources outside mainland China. New details indicate that starting May 26, some Hong Kong banks tightened investment account openings by requiring customers to sign paper declarations, while savings account openings were not affected. Earlier reporting also said some banks required in-person cross-border disclosure statements, asked clients about source of funds and trading records, and in some cases declined to activate investment account functions while banks and brokers reviewed existing accounts.

Terms & Concepts
  • Source-of-funds declaration: A compliance statement in which a customer confirms where their money originated and that it comes from lawful sources.
  • KYC: Know Your Customer, a compliance process banks and financial firms use to verify a client’s identity and assess risk.
  • Identity information update: An in-app process that allows users to refresh or submit identification details so an account can meet platform verification requirements.