The IRD’s Newest Transfer Pricing Targets: Mainland China-HK Cross-Border Transactions

In 2026, a CFO of a US$200M electronics distributor with Hong Kong trading business operations and Shenzhen production plants received an Hong Kong Inland Revenue Department (“IRD”) enquiry letter and a Mainland STA enquiry letter almost the same time. Their intercompany pricing had passed audits for years. Yet in 2026, the same arrangements suddenly triggered a comprehensive transfer pricing investigation. The rules had not changed. The IRD’s enforcement appetite had.

The Problem: Why Your Transfer Pricing Is Under the Microscope

The IRD has shifted from reactive compliance checks to proactive transfer pricing enforcement for Hong Kong-China operations. Enhanced data-sharing agreements with Mainland tax authorities mean your intercompany transactions are now visible from both sides of the border.

For businesses with annual turnover between US$10M and US$1B operating across both jurisdictions, the danger is not ignorance of the rules — it is the gap between arrangements that once passed scrutiny and documentation standards the IRD now demands. Inadequate preparation leads to prolonged audits, disputed assessments, and substantial penalties that could have been avoided.

Key Takeaways

- The IRD has intensified transfer pricing scrutiny specifically for Hong Kong-China cross-border transactions in 2026

- Enhanced data-sharing with Mainland China tax authorities means your intercompany arrangements are visible from both jurisdictions simultaneously

- Comprehensive transfer pricing documentation is now mandatory, not optional, for entities meeting disclosure thresholds — and the thresholds vary significantly by transaction type

- Both the arm’s-length standard and documentation deadlines are strictly enforced: Master and Local Files must be prepared within nine months of your accounting period end

- China’s Special Tax Adjustment provisions operate independently of Hong Kong’s Transfer Pricing (“TP”) regime — cross-border structures require expertise in both systems

Why Transfer Pricing Scrutiny Has Intensified in 2026

The IRD’s approach to transfer pricing has changed structurally, not just in degree. Two developments explain the shift.

First, the IRD’s data capabilities have expanded significantly. Enhanced information-sharing arrangements with Mainland China tax authorities allow both sides to cross-reference intercompany transaction details, pricing methodologies, and profit allocations from their respective positions. An arrangement that appeared defensible when examined only from Hong Kong’s perspective may not survive scrutiny when both authorities review it in parallel.

Second, Hong Kong’s statutory transfer pricing regime — introduced under the Inland Revenue (Amendment) No. 6 Ordinance 2018 — has matured. The IRD has moved from bedding in the new rules to actively enforcing them. Desk-based reviews are now routinely conducted within six months of profits tax return filing for entities that declare related-party transactions above exemption thresholds.

For CFOs and Tax Directors managing operations spanning both jurisdictions, understanding both Hong Kong’s transfer pricing rules and China’s Special Tax Adjustment provisions is no longer optional. It is a compliance imperative.

Which HK-China Structures Are Under the Microscope

Not every cross-border business faces the same level of scrutiny. The IRD’s enforcement activity is concentrated around specific transaction types and structural characteristics.

Companies with the following are most frequently selected for transfer pricing review:

• Significant intercompany service arrangements — management fees, technical services, and back-office charges between Hong Kong and Mainland entities are a primary focus, particularly where the fee basis is not supported by a formal analysis
• Intellectual property arrangements — royalties paid to or received from Mainland affiliates are examined closely, especially following IP transfers or restructurings
• Goods trading through Hong Kong intermediaries — buy-sell and commissionnaire structures where the Hong Kong entity’s margin appears inconsistent with its actual functions and risks
• Intragroup financing — intercompany loans and guarantees between HK and Mainland entities, particularly where interest rates deviate from market benchmarks
• Offshore profit claims — where a Hong Kong entity claims that profits are sourced outside Hong Kong, the IRD now cross-checks these claims against the transfer pricing documentation to test consistency

The IRD recognises that the complexity of HK-China business structures creates opportunities for profit shifting. Their response is systematic: desk-based reviews, enquiry letters, and in higher-risk cases, full field audits.

What the IRD Now Requires: Transfer Pricing Documentation

Hong Kong’s transfer pricing documentation framework follows the OECD’s three-tier structure. Understanding exactly what triggers each obligation — and when — is critical, because the thresholds are more granular than most finance teams realise.

The Three-Tier Structure

• Master File — provides an overview of the multinational group’s global business, transfer pricing policies, and value chain
• Local File — documents the Hong Kong entity’s specific controlled transactions and justifies their arm’s-length pricing
• Country-by-Country Report (CbCR) — provides a global breakdown of revenue, profits, taxes paid, and economic activity across all jurisdictions
  
  

Exemption Thresholds

A Hong Kong entity is exempt from preparing the Master File and Local File if it satisfies any two of the following three size conditions: total revenue does not exceed HK$400 million; total assets do not exceed HK$300 million; average number of employees does not exceed 100.

If the size exemption is not met, Local File obligations are triggered on a per-transaction-category basis. Each of the following thresholds is assessed separately and cannot be netted:

- Transfers of property (excluding financial assets and intangibles): HK$220 million

- Transactions in respect of financial assets: HK$110 million

- Transfers of intangibles: HK$110 million

- All other transactions, including services: HK$44 million

This last threshold is the one most frequently missed. A company providing intercompany management services to a Mainland affiliate at HK$50 million may have no documentation obligation under the property threshold but is firmly in scope under the services threshold. If you have been assessing your position against the HK$220 million figure alone, it is worth revisiting.

Country-by-Country Reporting is a separate obligation, applying to multinational groups with total consolidated revenue of €750 million or above.

Deadlines and Retention

The Master File and Local File must be prepared within nine months of the end of the relevant accounting period. They are not submitted to the IRD on filing — they are retained on file for a minimum of seven years and produced upon request. When the IRD selects an entity for a desk-based review, it may issue a request to complete Form IR1475, summarising key Master File and Local File information. That form must be submitted within one month of the IRD’s request.

The Profits Tax Return (BIR51) remains a separate obligation, due within one month of its date of issue. For guidance on the full annual compliance cycle, see our cross-border compliance services.

The Arm’s-Length Standard: What the IRD Is Actually Testing

Documentation is necessary but not sufficient. The IRD’s substantive question is whether your intercompany transactions are priced as they would be between independent parties under comparable circumstances. This is the arm’s-length standard, codified in the Inland Revenue Ordinance under section 50AAF.

In practice, the IRD will examine:

• Whether the pricing method chosen is appropriate for the transaction type — comparable uncontrolled price, cost plus, resale price, transactional net margin, or profit split
• Whether the benchmarking analysis supporting your pricing is current, comparable, and defensible
• Whether the functions performed, assets used, and risks assumed by each entity are consistent with the profit allocated to them
• Whether the legal arrangements between entities reflect the economic reality of how value is actually created

The IRD does not accept documentation that describes what was intended. It requires documentation that reflects what actually happened. Where the two diverge, adjustments follow.

For businesses with existing intercompany arrangements that have not been reviewed recently, an advance pricing arrangement (APA) with the IRD may provide greater certainty. See our guidance on transfer pricing documentation and audit defence.

The China Side: Special Tax Adjustments and Dual Exposure

A transfer pricing position that satisfies the IRD in Hong Kong does not automatically satisfy China’s State Taxation Administration. Both authorities can challenge the same intercompany transaction independently, and they frequently do.

China’s Special Tax Adjustment provisions, governed by SAT Public Notice [2017] No. 42 and Chapter 6 of the Enterprise Income Tax Law, operate on similar arm’s-length principles but through a different procedural framework. China requires contemporaneous documentation for enterprises with related-party transactions above prescribed thresholds, and subjects high-risk transactions to enhanced scrutiny under its Special Tax Investigation regime.

For HK-China structures, the practical risk is double adjustment: the IRD increases taxable profits in Hong Kong, while the STA makes a corresponding adjustment in China, and the mutual agreement procedure under the Comprehensive Double Taxation Arrangement between the two jurisdictions may not resolve the dispute quickly. Cases involving both authorities simultaneously can take years to resolve.

This dual exposure is precisely why the structuring and documentation of intercompany arrangements needs to be designed with both jurisdictions in mind from the outset, not retrofitted after an enquiry arrives.

Working with Henry Kwong Tax Advisory

The IRD’s shift toward proactive enforcement is not a temporary trend. For businesses operating across Hong Kong and Mainland China, the question is no longer whether your transfer pricing arrangements will be examined, but whether they will hold up when they are.

If you are a CFO or finance leader uncertain whether your current documentation is adequate — or whether your intercompany pricing would withstand an IRD desk-based review — that uncertainty is worth addressing before an enquiry letter arrives.

Henry Kwong Tax Advisory specialises exclusively in Hong Kong and China taxation. The team brings Big 4 experience to transfer pricing documentation, arm’s-length benchmarking, cross-border restructuring, and IRD audit defence. Henry is ranked first in Hong Kong’s Certified Tax Advisor (Advanced Taxation) examination and works alongside ONC Lawyers, one of Central’s leading law firms, where complex disputes require legal and tax expertise in tandem.

If you would like a confidential review of your transfer pricing position, schedule a meeting with Henry’s team.