Update: managing payment-channel and banking-access risk

Banking access is not a static condition. Correspondent networks, compliance thresholds and de-risking policies shift without notice – and the disruption falls hardest on cross-border transactions routed through Hong Kong.

Payment-channel risk describes the exposure a business faces when a correspondent bank, intermediary institution or clearing platform restricts, delays or closes a transaction because of sanctions screening, source-of-funds concerns or counterparty flags. In Hong Kong, the governing regime is the Anti-Money Laundering and Counter-Terrorist Financing Ordinance (the AMLO), administered by the Hong Kong Monetary Authority and the Securities and Futures Commission depending on the institution type. Hong Kong implements United Nations sanctions and does not give domestic effect to unilateral measures of other states – a position that creates a distinctive compliance environment for cross-border transactions.

This briefing covers three points: what is driving the current escalation of banking-access friction, who it affects across the Greater China corridor, and the immediate steps that reduce the exposure.

What has changed and why payment-channel friction is rising

The immediate trigger is the continued expansion of global correspondent-bank screening parameters. Major clearing institutions are widening the categories of counterparty, jurisdiction and transaction type that prompt enhanced scrutiny or automatic suspension.

For businesses routing payments through Hong Kong – whether as the originating hub, the intermediate clearing point, or the ultimate beneficiary jurisdiction – the result is a sharper demand for pre-positioned compliance documentation. A transaction that moved cleanly six months ago may now stall at the correspondent layer because a counterparty's jurisdiction appears on a watchlist maintained by a foreign clearing system.

Hong Kong's legal position is clear. Under the AMLO, licensed institutions must conduct customer due diligence, monitor transactions and file suspicious-transaction reports where warranted. They are not required to apply unilateral sanctions regimes of other states. But correspondent relationships are commercial arrangements. A Hong Kong bank that depends on US-dollar clearing through a US correspondent must comply with that correspondent's requirements – including requirements that reflect US unilateral measures – or risk losing the clearing line.

In our cross-border practice, we have seen a marked increase in source-of-funds requests, mid-transaction holds and account-review notices reaching clients in the autumn and winter cycle. The pattern is consistent: institutions are running retrospective reviews ahead of year-end compliance sign-offs, and the requests arrive with short response windows.

Who is affected across the corridor

The exposure is concentrated in three categories of client.

First, trading companies and operating groups with Mainland China counterparties whose payments pass through Hong Kong banks. The correspondent layer applies its own screening to both originator and beneficiary, and a Mainland-side entity that appears on any watchlist – even a non-UN list – can cause the entire payment chain to stall.

Second, family offices and holding entities that move capital between offshore centres, Hong Kong and Mainland-connected accounts. The source-of-funds question (the inquiry into the provenance of capital) now reaches back several transactional generations, and the required documentation trail is longer than most principals anticipate.

Third, technology and virtual-asset businesses operating under or adjacent to the Hong Kong virtual-asset trading platform licensing regime, which commenced on 1 June 2023. These entities face layered scrutiny: the AMLO compliance obligations of the platform, the FATF travel rule (the requirement to transmit originator and beneficiary information with virtual-asset transfers), and the bank-level screening applied by their own settlement banks.

Across all three categories, the common failure point is the same: an underprepared compliance file that cannot answer the correspondent's questions within the response window. A stalled payment is recoverable. A closed account is not.

The immediate action: what to do now

Counsel on our desk regularly advise clients to treat payment-channel compliance as a standing obligation, not a reactive one. The practical steps are sequenced.

The first priority is a review of the existing compliance documentation: the customer due diligence file, the source-of-funds narrative, the ownership and control chart, and the transactional records supporting the flows currently running through the payment channel. If that file cannot be produced within 48 hours of a bank request, it needs to be rebuilt before the request arrives.

The second priority is a mapping of the correspondent chain for each material payment corridor. Understanding which institutions clear which currencies – and what screening parameters each applies – allows a business to anticipate where friction will arise and, where appropriate, identify alternative routing that remains fully compliant.

The third priority is sanctions-neutral contracting. Where a transaction touches a jurisdiction subject to any sanctions regime, the contractual documentation should be reviewed to confirm that representations, warranties and payment mechanics are consistent with the applicable UN measures and do not create exposure under third-country compliance requirements. For the Hong Kong-specific approach, see our note on sanctions-neutral contracting through Hong Kong.

If your bank has already issued a source-of-funds request, the response window matters as much as the substance. Our practice on responding to a bank's source-of-funds request sets out the response structure in detail.

For a full account of how we approach the sanctions and AML practice, the starting point is our Sanctions & AML practice page.

For a structured review of your payment-channel compliance position, write to us at info@lockhartyip.com.

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• Responding Bank S Source Funds Request
• Sanctions Neutral Contracting Approach Through Hong Kong

This publication is general information and does not constitute legal advice. For advice on your situation, contact info@lockhartyip.com.