Cross-Border Intellectual Property Transfers: US Tax on Hong Kong Trademark Assignments to US Entities

The transfer of intellectual property (IP)—specifically trademarks—from a Hong Kong entity to a related US corporation has emerged as a critical tax planning and compliance flashpoint in 2025. The intersection of the US Tax Cuts and Jobs Act (TCJA) provisions on cross-border transfers, the IRS’s intensified focus on base erosion and profit shifting (BEPS) through intangible property, and Hong Kong’s continued status as a low-tax jurisdiction for passive IP income creates a specific risk profile for American citizens and Green Card holders residing in Hong Kong. The IRS, under its 2024-2025 Priority Guidance Plan, has signalled increased scrutiny of transactions involving the transfer of high-value intangible assets to foreign related parties, with Hong Kong-based trademark assignments being a particular target due to the perceived tax arbitrage. For a US person holding shares in or controlling a Hong Kong company that owns a globally recognised brand, a proposed assignment of that trademark to a US subsidiary or affiliate is no longer a straightforward corporate reorganisation. It triggers a cascade of US tax consequences under IRC § 367(d), § 482, and potentially § 877A for those considering expatriation. The operative tax position is that any transfer of a Hong Kong trademark to a US entity by a US person or a controlled foreign corporation (CFC) is immediately taxable as a deemed sale of the intangible property, unless specific exceptions are met.

The Foundational US Tax Rules: IRC § 367(d) and § 482

The core statutory framework governing outbound transfers of intangible property from the United States is IRC § 367(d). This section overrides the general non-recognition rules of IRC § 351 or § 361 that would otherwise apply to a tax-free transfer of property to a corporation in exchange for stock. Under § 367(d), a transfer of intangible property (as defined in § 936(h)(3)(B)) by a US person to a foreign corporation is treated as a sale of the property in exchange for payments contingent on the productivity, use, or disposition of the property. The US transferor is required to recognise income over the useful life of the intangible property, contingent on actual US income or deemed income under the subpart F rules.

The Deemed Royalty Regime for Outbound Transfers

For a US person transferring a Hong Kong trademark to a US entity, the immediate question is whether the transfer is “outbound” from a US tax perspective. If the US person directly owns the trademark and transfers it to a US corporation, the transfer is generally a domestic transaction and may qualify for non-recognition under § 351. However, the situation becomes more complex when the trademark is held by a Hong Kong company that is a CFC of the US person. The transfer of the trademark from the Hong Kong CFC to a US affiliate is a disposition of property by a CFC. Under the subpart F regime, a sale of intangible property by a CFC that results in a shift of income from a high-tax jurisdiction (the US) to a low-tax jurisdiction (Hong Kong) can trigger a deemed dividend to the US shareholder under § 951(a). The IRS has consistently taken the position that such a transfer can be recharacterised under § 482 to reflect an arm’s-length royalty.

The Arm’s-Length Standard Under § 482

IRC § 482 grants the IRS the authority to allocate gross income, deductions, credits, or allowances between related taxpayers to prevent tax evasion or to clearly reflect income. In the context of a Hong Kong trademark assignment to a US entity, the IRS will scrutinise the consideration paid. The operative position is that the US entity must pay the Hong Kong transferor an arm’s-length royalty for the use of the trademark. If the Hong Kong entity simply assigns the trademark for nominal consideration or for shares in the US entity, the IRS can recharacterise the transaction as a license and impute a royalty payment from the US entity to the Hong Kong entity. This imputed royalty is then subject to US withholding tax at a rate of 30% unless reduced by treaty. The US-Hong Kong Tax Information Exchange Agreement (TIEA) does not provide a reduced withholding rate on royalties, as Hong Kong is not a party to a comprehensive income tax treaty with the United States. Therefore, any royalty deemed paid by a US entity to a Hong Kong company is subject to the full 30% US withholding tax under IRC § 1441.

The Hong Kong Tax Perspective: Source Rules and Territoriality

From the Hong Kong side, the tax treatment of a trademark assignment depends entirely on the source of the income. The Inland Revenue Department (IRD) applies a strict territorial source principle under the Inland Revenue Ordinance (Cap. 112). A Hong Kong company realising a gain from the sale of a trademark is only subject to Hong Kong profits tax if the gain is sourced in Hong Kong. The landmark case of CIR v. Hang Seng Bank Ltd [1991] 1 HKRC 80-042 established that the source of profits from a sale of property is determined by where the contract for sale is effected and where the operations producing the profits take place.

The Source of a Trademark Assignment Gain

For a Hong Kong company assigning a trademark to a US entity, the IRD will examine where the negotiation, execution, and performance of the assignment agreement occur. If the Hong Kong company’s directors negotiate and sign the agreement in Hong Kong, and the trademark is registered in Hong Kong, the IRD is likely to treat the gain as Hong Kong-sourced and subject to profits tax at the standard 16.5% rate (for corporations). However, if the trademark is registered and used exclusively outside Hong Kong, and the assignment is negotiated and concluded outside Hong Kong (e.g., in the US), the gain may be treated as offshore and not subject to Hong Kong tax. The IRD’s Departmental Interpretation and Practice Notes (DIPN) No. 21 on “Offshore Claims” provides guidance, but the burden of proof lies with the taxpayer. The operative position is that a Hong Kong company should assume the gain is onshore unless it can clearly demonstrate that all substantive activities occurred outside Hong Kong.

The Interaction with US CFC Rules

The Hong Kong tax treatment is further complicated by the US CFC rules. If the Hong Kong company is a CFC of a US person, any gain from the trademark assignment that is not subject to Hong Kong tax (because it is offshore) may be treated as subpart F income under IRC § 954(c)(1)(A) (foreign personal holding company income) or § 954(c)(1)(B) (foreign base company sales income). This means the US shareholder could be taxed on the gain in the US even if the Hong Kong company pays no Hong Kong tax. The IRS will not respect a Hong Kong offshore claim if the substance of the transaction is US-centric. The US person must report the gain on Form 5471 (Information Return of U.S. Persons With Respect to Certain Foreign Corporations) and include it in their gross income under the subpart F rules.

Specific Scenarios for US Persons in Hong Kong

The US tax consequences differ significantly depending on whether the US person is a direct owner of the trademark, a shareholder of the Hong Kong company, or an individual considering expatriation.

Scenario A: The US Individual Directly Owns the Hong Kong Trademark

A US citizen living in Hong Kong directly owns a trademark for a consumer product line. They wish to assign the trademark to a newly formed US LLC that will manage global licensing. Under IRC § 367(d), this is an outbound transfer of intangible property from a US person (the individual) to a foreign corporation (the Hong Kong company is not relevant here; the transfer is to the US LLC, which is a domestic entity). However, if the US LLC is treated as a disregarded entity for US tax purposes (a single-member LLC), the transfer is a transfer to the US individual themselves. The more common scenario is that the US individual transfers the trademark to a Hong Kong company they own. This is a direct outbound transfer. The US individual must recognise a deemed royalty over the useful life of the trademark, typically 15 years under Treas. Reg. § 1.367(d)-1T. The individual must file Form 926 (Return by a U.S. Transferor of Property to a Foreign Corporation) and attach a statement detailing the transfer.

Scenario B: The US Person is a Shareholder of the Hong Kong Company (CFC)

This is the most common scenario for a US-HK family office. The Hong Kong company owns the trademark. The company proposes to assign the trademark to a US subsidiary for a lump-sum payment. From a Hong Kong tax perspective, the gain is likely onshore and subject to 16.5% profits tax. From a US tax perspective, the Hong Kong company is a CFC. The sale of the trademark to a US entity is a transaction that could generate subpart F income. Under § 954(c)(1)(B)(i), foreign base company sales income includes income from the sale of property where the property is purchased from or sold to a related person. Here, the Hong Kong company (seller) is related to the US entity (buyer). The income from the sale is subpart F income. The US shareholder must include their pro-rata share of this income on their US tax return. The US entity may also be required to withhold 30% on the purchase price if the IRS recharacterises the sale as a license. The IRS has issued private letter rulings (PLRs) on this issue, but they are specific to the facts. The general rule is that a lump-sum sale of a trademark by a CFC to a US related party will be treated as a sale of inventory, generating subpart F income.

Scenario C: The Expatriating US Person with a Hong Kong Trademark

For a US citizen or long-term resident considering expatriation (giving up US citizenship or Green Card), the transfer of a Hong Kong trademark before expatriation triggers a specific set of rules under IRC § 877A. The expatriate is subject to an exit tax if they meet certain net worth or tax liability thresholds (for 2025, the net worth threshold is USD 2.0 million, and the average annual net income tax liability threshold is USD 201,000 for the five years ending before the expatriation date, adjusted for inflation). The trademark is treated as a covered asset. Its fair market value must be included in the deemed sale calculation. The operative position is that transferring the trademark to a trust or a non-US entity before expatriation will not avoid the exit tax. IRC § 877A(g) specifically subjects transfers of property to related foreign entities to the exit tax rules. The expatriate must report the trademark on Form 8854 (Initial and Annual Expatriation Statement) and pay tax on any built-in gain.

The Compliance Burden: Forms, Deadlines, and Penalties

The US tax compliance requirements for a Hong Kong trademark assignment are substantial and carry significant penalties for non-compliance.

Required IRS Forms

The minimum filing requirements include Form 5471 (for the Hong Kong CFC), which must be filed by the 15th day of the 4th month after the end of the US person’s tax year (April 15 for calendar-year taxpayers, with extensions available to October 15). The transfer itself must be reported on Form 926, which is due by the same date as the individual’s or corporation’s tax return. If the US entity makes a royalty payment to the Hong Kong company, it must file Form 1042 (Annual Withholding Tax Return for U.S. Source Income of Foreign Persons) and Form 1042-S (Foreign Person’s U.S. Source Income Subject to Withholding). The 30% withholding tax must be remitted to the IRS by the 15th day of the month following the payment. Failure to file Form 5471 can result in a penalty of USD 10,000 per form per year, with additional penalties of USD 10,000 for each 30-day period of continued failure after IRS notice, up to a maximum of USD 60,000. Criminal penalties may also apply for willful failure to file.

The Statute of Limitations

The IRS generally has three years from the date of filing to assess additional tax. However, if the taxpayer omits from gross income an amount exceeding 25% of the gross income stated on the return, the statute of limitations extends to six years. For a trademark assignment, where the gain may be substantial and unreported, the six-year statute is a real risk. Furthermore, if the taxpayer fails to file Form 5471 or Form 926, the statute of limitations may not begin to run at all for the items that should have been reported on those forms. The IRS has taken the position in Chief Counsel Advice that the failure to file a required information return can keep the statute open indefinitely for the related tax items.

Actionable Takeaways

• Treat any transfer of a Hong Kong trademark to a US entity as a taxable event under US law, requiring immediate recognition of gain or a deemed royalty stream under IRC § 367(d) and § 482.
• Assume the Hong Kong Inland Revenue Department will treat the gain from the assignment as onshore and subject to profits tax at 16.5%, unless the taxpayer can prove all substantive activities occurred outside Hong Kong.
• File Form 5471 for the Hong Kong CFC and Form 926 for the outbound transfer within the applicable deadlines (April 15/October 15 for calendar-year taxpayers) to avoid USD 10,000+ penalties.
• Withhold 30% on any royalty deemed paid by the US entity to the Hong Kong company, as the US-Hong Kong TIEA does not reduce this rate.
• For US persons considering expatriation, include the fair market value of any Hong Kong trademark in the exit tax calculation under IRC § 877A, as pre-expatriation transfers to related entities will not avoid the tax.

本文不構成稅務建議。涉及個人稅務情況請諮詢持牌會計師或稅務師。 / This does not constitute tax advice. Consult a licensed CPA or tax advisor for your specific situation.