The UK enforces some of the world’s toughest anti-money laundering (AML) rules — British banks, lawyers and accountants must verify clients’ source of funds and must refuse deals they cannot clear. Vietnamese businesses moving investment capital, buying property or paying large contracts with UK counterparties are often surprised by demands to “prove the money is clean”. This article explains the mechanics and how to prepare.
Legal framework
- UK: the Money Laundering, Terrorist Financing and Transfer of Funds Regulations 2017 (as amended): customer due diligence (CDD) and suspicious activity reporting (SAR) duties on “regulated” businesses — banks, lawyers, accountants, estate agents.
- Transparency registers: the public PSC register (persons with significant control) at Companies House; the Register of Overseas Entities (Economic Crime (Transparency and Enforcement) Act 2022) — foreign organisations owning UK land must register their beneficial owners, or face restrictions on dealing with the property.
- Vietnam: the Anti-Money Laundering Law 14/2022/QH15 (effective 1 March 2023): duties to report suspicious and large cash transactions for financial institutions.
Why UK deals trigger source-of-funds scrutiny
UK law places the duty directly on the service provider: the bank opening the account, the lawyer handling the purchase, the auditing accountant — inadequate CDD exposes them to penalties. So they push the burden of proof onto the client: bank statements, contracts evidencing the funds’ origin, tax filings, investment licences. For money flows from Vietnam, the most-queried point is the legality of the outbound transfer — the UK side wants documentary proof of compliance with Vietnam’s foreign-exchange controls.
What Vietnamese businesses should prepare
- Source-of-funds pack: contracts, invoices, CIT filings, audited accounts, and approved decisions on profit repatriation/outbound investment under Investment Law 143/2025.
- Overseas Entities registration before buying UK property through a Vietnamese entity — prepare beneficial-owner information (above 25%).
- Consistent information: beneficial owners named in PSC/Overseas Entities filings must match bank records and Vietnamese documents — even small mismatches can freeze a transaction pending checks.
- Timeline planning: UK bank/lawyer CDD routinely takes weeks to months — do not schedule a tight closing before KYC is done.
Frequently asked questions
What foreign-exchange documents are needed to move investment capital from Vietnam to the UK?
Under Vietnamese law, outbound investment transfers require an Outbound Investment Registration Certificate and must pass through a capital account at a licensed credit institution. The UK side will ask for these documents to evidence the legitimacy of the flow.
Must a Vietnamese company register anything to buy a house in London?
Yes. A foreign organisation (overseas entity) owning or buying UK land must register with Companies House’s Register of Overseas Entities, declare beneficial owners and update annually. Without registration, the land title cannot be transferred.
What if a UK bank refuses to open an account?
Banks may decline where CDD fails — a commercial decision that is hard to appeal successfully. Remedies: a stronger source-of-funds pack, an introduction via English solicitors (bank referral), or banks specialising in international clients.
Above what amount must transactions be reported?
UK law sets no hard reporting threshold for SARs — every suspicious transaction must be reported, however small. A large-cash threshold (EUR 10,000 equivalent) triggers enhanced CDD for certain sectors. Do not rely on a “safe amount” — make every transaction explainable.
Contact FLAT Law Firm
FLAT Law Firm helps Vietnamese businesses prepare source-of-funds packs, register Overseas Entities and coordinate with English solicitors on KYC. Contact us before moving money to avoid frozen transfers.
This article has been quality-reviewed by the FLAW AI Legal Council