⚠ Manufacturing Offshore Income Requires Proper Structure
HK manufacturers with Mainland China factories that fail to properly structure their buying/selling activities risk having their offshore income claim rejected. The IRD applies strict scrutiny to split-contract manufacturing arrangements and requires genuine commercial substance.
Common Challenges
Mainland Factory Profit Split
Under DIPN 21, HK manufacturers with Mainland factories may claim 50% of profits as offshore if using a split-profit approach — but the activities must have genuine commercial substance.
⚠ Risk: No proper structure → 100% of profits taxed in HK
Factory Equipment Allowances
Production machinery, tooling, quality control equipment, and factory automation systems all qualify for capital allowances on the HK portion of the business.
⚠ Risk: Equipment under-claimed → excess annual tax payments
Transfer Pricing — HK to Factory
Prices charged between the HK trading entity and Mainland manufacturing entity (if same group) must be at arm's length to satisfy both HK IRD and Mainland tax requirements.
⚠ Risk: Non-arm's-length pricing → dual tax adjustments in HK and CN
Product Returns & Warranty Costs
Warranty claims, product liability costs, and returns handling create timing and quantum questions for tax deductions in HK.
⚠ Risk: Warranty provisions disallowed → tax on full revenue before warranty period expires
Who Is This For?
HK trading companies with Mainland factories
Hong Kong companies managing production in Mainland China under processing trade arrangements.
Light manufacturing operators
HK-based manufacturers in electronics, plastics, garments, and consumer goods.
OEM & ODM manufacturers
Original equipment and design manufacturers supplying international brands.
Industrial supply companies
Companies supplying industrial components and raw materials to manufacturers.
What We Do
Manufacturing Offshore Income Structuring
Establish a DIPN 21-compliant structure to legitimately claim 50% offshore profit split on Mainland manufacturing profits.
Commercial substance analysis and activity documentation
Factory Equipment Allowances
Identify and claim capital allowances on all qualifying production plant, machinery, tooling, and factory equipment.
Equipment register review and P&M pool analysis
Manufacturing Profits Tax Return
Prepare BIR51 with manufacturing-specific schedules, offshore profit split, and equipment allowance claims.
DIPN 21 compliant offshore apportionment schedule
Transfer Pricing Documentation
Prepare arm's-length analysis and transfer pricing documentation for HK-Mainland intercompany transactions.
Comparable uncontrolled price or cost-plus analysis
How It Works
Manufacturing Operations Review
2-3 daysAnalyse your production operations, supply chain structure, HK vs Mainland activities, and equipment.
Offshore Structure Analysis
2-3 daysDetermine optimal offshore profit split structure under DIPN 21 with commercial substance requirements.
Return Preparation
5-7 daysPrepare profits tax return with manufacturing schedules and offshore claim documentation.
Annual Manufacturing Tax Planning
AnnualOngoing review of production structure, equipment investment timing, and transfer pricing.
Case Studies
Electronics manufacturer — HK trading + Dongguan factory
- •Annual trading revenue HKD 95M
- •DIPN 21 offshore structure established
- •50% profit split — HKD 4.8M offshore
- •Transfer pricing documentation prepared
“The DIPN 21 structure was a game-changer. Over HKD 1.4M saved in the first year.”
Garment OEM — HK office, Mainland production
- •Annual revenue HKD 42M
- •Buying and selling activities documented
- •Back-year offshore claims filed
- •HK equipment allowances identified
“They knew exactly how to structure the DIPN 21 claim. Highly professional.”
Frequently Asked Questions
How does the DIPN 21 profit split work for HK manufacturers with Mainland factories?
DIPN 21 (IRD Practice Note 21) provides that where a HK company carries on manufacturing through a mainland factory, and the HK company performs both buying (procurement) and selling activities while the factory performs production, 50% of the profits may be treated as offshore-sourced (manufacturing profit) and not subject to HK profits tax. The remaining 50% (trading profit) is taxable in HK. This requires genuine commercial substance in both HK and Mainland activities.
What activities must a HK trading company perform to claim DIPN 21 offshore profit?
To qualify for the 50% offshore profit split, the HK company should genuinely perform: (1) Buying activities — supplier selection, price negotiation, quality standards, purchase contracts; (2) Selling activities — customer acquisition, sales negotiation, marketing, delivery terms. These activities must be conducted by HK staff or management and should be documented. Merely having a HK registered office while all activities are done in Mainland will not qualify.
Are machinery and equipment in a Mainland factory eligible for HK capital allowances?
Generally no. Capital allowances under the HK IRO apply to plant & machinery used in a HK trade or business. Factory equipment located in Mainland China and used in the Mainland factory operations is not eligible for HK capital allowances. However, any equipment used in the HK trading operations (office equipment, computers, display models) qualifies for HK capital allowances.
How should warranty costs be treated for Hong Kong profits tax?
Warranty costs can be deducted when the liability crystallises (i.e., when the warranty claim is made and the cost is incurred). General warranty provisions made before claims are received are not deductible for HK tax purposes — the IRD requires an ascertained liability, not a general provision. Some manufacturers use historical claim data to argue for provisioning, but this is subject to IRD scrutiny.
What transfer pricing documentation is needed for HK-Mainland manufacturing arrangements?
Under HK's transfer pricing rules (Part 9A IRO, effective 2019), substantial transactions with related overseas parties require contemporaneous transfer pricing documentation if the entity exceeds certain thresholds (annual turnover >HKD 400M or cross-border related party transactions >HKD 220M). The documentation should establish that intercompany prices are at arm's length using one of the approved OECD methods. Smaller manufacturers should maintain basic documentation even if not legally required.
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