United States: Anti-Inversion Rules Are Not Just For Mega-Mergers – Private Client Advisors Take Note

Last Updated: December 7 2017
Article by Elizabeth V. Zanet, Galia Antebi and Stanley C. Ruchelman


Transactions known as corporate "inversions" or "expatriations" have made head­lines for years. Recently, the proposed merger of the U.S. pharmaceutical giant Pfizer, Inc. with the Irish-based pharmaceutical company Allergan Plc was in the news. The coverage addressed the implications of creating the world's largest phar­maceutical company, the loss of yet another American corporate behemoth to a lower-tax jurisdiction, and later, the plan's cancellation, arguably as a result of the U.S. government's regulatory action.

As laws limiting tax-free inversions have developed, tax attorneys specializing in corporate mergers and acquisitions have been required to keep up with regulatory developments and consider new planning techniques – but they are not the only ones with such obligations. Tax attorneys advising individuals and families who own closely-held businesses, investment structures, and even personal use property, with cross-border aspects, must also keep the inversion rules on the forefront of tax planning. In the private client setting, inversions are sometimes overlooked, perhaps because the issue is so closely associated with large "M&A" deals.

The following article examines how the inversion rules can affect cross-border tax planning for individuals. It begins with a brief discussion on the development of the inversion rules over time and some of the planning techniques that have been used to address the legislative and regulatory changes.


To understand the impetus for inversions, it is important to have a basic understand­ing of the U.S. corporate income tax system.

Corporations that are formed under U.S. domestic law are U.S. persons. Like all U.S. persons, U.S. corporations are subject to U.S. income tax on their worldwide income. Accordingly, when a U.S. corporation earns income from sources outside the U.S., that income is subject to U.S. income tax, though not necessarily on a cur­rent basis. A U.S. corporation can defer income tax on active income (i.e., income earned by operating a trade or business) earned outside the U.S. through foreign subsidiaries until it is paid or repatriated to the U.S. parent corporation. If a foreign subsidiary earns certain foreign-source income from passive-type investments (e.g., interest, dividends, rents, royalties), its U.S. parent corporation may be required to pay tax on that income – referred to as Subpart F income – in the tax year it is earned, regardless of whether the foreign subsidiary makes a dividend distribution to the U.S. parent corporation.

For financial statement purposes, the profit and loss statement generally does not follow the Subpart F rules. Whether U.S. tax is deferred or imposed currently on the tax return of a U.S.-based multinational, U.S. tax expense must be recorded when and as income of foreign subsidiaries is reported on the U.S.-based group's consolidated financial statements prepared in accordance with U.S. G.A.A.P. The principal exception to this accounting treatment exists when the earnings of foreign subsidiaries are permanently invested abroad.

For a U.S.-based multinational, the true benefit of an inversion is the release of earnings that were permanently invested abroad for financial statement purposes. Those earnings can then be distributed to the new parent company, used internally within the group, or distributed to shareholders without affecting the reported earn­ings of the company.


In simplest terms, a corporate inversion is a process by which an existing U.S. corporation changes its legal domicile to a lower-tax jurisdiction. The inversion transaction involves a reorganization of a corporate structure that results in a foreign parent corporation at the top of the corporate structure, where there was previously a U.S. corporation. The original U.S. parent corporation becomes a subsidiary of a new or existing foreign corporation; at which point, the corporate structure is said to be "inverted."

The foreign parent corporation used in the inversion will be resident in a low-tax jurisdiction,1 where foreign-source income is not subject to local tax or where divi­dends from foreign subsidiaries are not subject to income tax at the level of the new foreign parent and dividends from the parent are not subject to dividend withholding tax. The key is that dividends from low-taxed foreign subsidiaries do not trigger tax upon receipt and that the foregoing tax benefit is not reduced by withholding tax on dividends to shareholders. Because the foreign subsidiary operates in a low-tax environment, a tax system that does not provide an exemption, but instead allows an indirect credit for foreign taxes imposed on the subsidiary, is not attractive.

Corporate inversions have been achieved using one of three of the following plans:

  • A merger with a larger foreign corporation, resulting in a new company con­trolled outside the U.S.
  • A merger with a smaller foreign corporation, resulting in a new company con­trolled by the shareholders of the original U.S. corporation
  • The formation of a foreign subsidiary in a jurisdiction in which the U.S. cor­poration has substantial business activities, followed by a "B reorganization" (i.e., a stock-for-stock exchange creating a new structure in which the foreign corporation is the parent and the U.S. corporation is its subsidiary), and re­sulting in no change in effective control
  • Prior to the enactment of the anti-inversion rules, a U.S. corporation generally was able to eliminate or reduce its U.S. income tax obligation as a result of inversion in the following ways:
  • Moving its foreign business operations to foreign subsidiaries owned by the foreign parent corporation, thereby removing its foreign-source business in­come from its tax base
  • Allowing the accumulated or future income in its foreign subsidiaries to be accessed by group members in the U.S. through loans that do not trigger tax under Subpart F
  • Making accumulated or future income available as a funding source for divi­dends to shareholders
  • Engaging in "earnings stripping" through intercompany debt, royalty pay­ments, management fees, and other arrangements (e.g., the foreign parent corporation may lend to its U.S. subsidiary – this creates an interest expense deduction for the U.S. subsidiary, which lowers its U.S. taxable income)

As discussed below, Congressional action has created substantial barriers for in­version transactions, and regulatory action has closed loopholes and curbed some tax benefits.


Code §367(a)

The earliest legislative response to corporate inversions was the enactment of Code §367(a), which generally applies to U.S. persons (including individuals and corpora­tions) that transfer appreciated property to a foreign corporation. Transactions tar­geted by Code §367(a) involve outbound transfers of appreciated property through a nonrecognition transaction, such as a capital contribution to a controlled corpo­ration or tax-free outbound reorganization. Under Code §367(a), the appreciation in property is recognized and generally taxed by the U.S. at the time of transfer to a person that is beyond the scope of U.S. tax jurisdiction. Appreciated property subject to Code §367(a) includes stock in another corporation.

Code §367(a) targets such transactions by effectively denying tax-free treatment to what is otherwise a nonrecognition transaction. It does this by treating the trans­fer as if the consideration received is other than shares of stock. This treatment eliminates deferral opportunities since most deferral transactions involve a transfer of property – including shares of stock in a corporation – for shares of stock in an acquiring corporation.

Code §7874

Despite these efforts, Code §367(a) did not prove to be a sufficient deterrent to corporate inversions. Some U.S. corporations calculated that the upfront tax cost of Code §367(a) was worth the benefit of removing or deferring income from the reach of relatively high U.S. Federal corporate income tax (currently, the rates are 34% and 35%). In some cases, there may have been no upfront tax cost because the U.S. corporation's stock did not appreciate during the holding period or because the shareholder group was comprised to a large extent by entities that are tax exempt in the U.S. (e.g., pension funds, not-for-profit organizations, and foreign investors).

Code §7874 was enacted in 2004 to remedy the absence of an effective disincentive to inversions. For its part, the Treasury Department subsequently issued regula­tions to close certain loopholes found by tax planners under Code §7874. The most comprehensive Treasury Regulations were issued in 2012 and 2016.

In broad terms, Code §7874 either causes the inversion transaction to be ignored – so that the inverted corporation continues to be treated as a U.S. corporation for U.S. tax purposes – or respects the inversion transaction but subjects the trans­action to unfavorable tax treatment for ten years. As discussed in detail below, whether an inversion transaction is ignored or respected depends upon the level of ownership continuity.

Code §7874 applies to "expatriated entities" and their "surrogate foreign corpora­tions." A surrogate foreign corporation is a foreign corporation that, pursuant to a plan or a series of related transactions, meets the following benchmarks:

  • It directly or indirectly acquired substantially all of the properties constituting a trade or business of a domestic corporation or a domestic partnership.
  • After such acquisition, at least 60% of its stock (by vote or value) is held by former shareholders of the domestic corporation by reason of holding stock in the domestic corporation or, in the case of a partnership, by former partners of the domestic partnership by reason of holding a capital or profits interest in the domestic partnership.
  • Neither it nor its expanded affiliated group (i.e., the group that now includes the U.S. corporation) have substantial business activities in the foreign coun­try in which the foreign corporation is created or organized, after the ac­quisition described in the first bullet, when compared to the total business activities of the expanded affiliated group.2

An expatriated entity is a domestic corporation or domestic partnership with respect to which a foreign corporation is a surrogate foreign corporation and includes any domestic corporation or domestic partnership related to the expatriated entity.3

The inversion is ignored, and the foreign corporation is treated as a domestic corpo­ration for all purposes of the Code if, after the transaction, the former shareholders of the domestic corporation or, in the case of a partnership, the former partners of the domestic partnership own 80% or more of the surrogate foreign corporation, measured by vote or value, and the substantial business activities test is not met.4

If (i) ownership continuity is at least 60% but not as much as 80% and (ii) the sub­stantial business activities test is not met, the expatriated entity will be subject to U.S. income tax on its "inversion gain" for a defined period.5 Inversion gain means income or gain recognized by reason of the transfer of stock or other properties in the inversion transaction.6 It also includes certain income from the licensing of property by the expatriated entity during the defined period.7 The defined period is lengthy: It starts on the first date that properties are acquired as part of the inversion transaction and ends ten years after the last date.8

A number of other unfavorable tax provisions apply to the inversion gain. For exam­ple, the use of credits to offset the tax on the inversion gain is limited; net operating losses generally may not be used to offset the amount of inversion gain that is taxed; and inversion gain is considered U.S.-source income for the purpose of computing the foreign tax credit.9

Code §7874(c)(4) is an anti-abuse rule that disregards transactions designed to manage the value of a corporation involved in a potential inversion. Thus, the trans­fer of properties to enhance the value of a foreign corporation or the undertaking of liabilities to reduce the value of the U.S. corporation will be ignored when the transaction is part of a plan designed principally to avoid Code §7874. This rule would apply, for example, to the transfer of assets to a foreign corporation before the inversion transaction so that the value of the foreign corporation is increased in order to prevent the value of the U.S. corporation from breaching the 60% threshold.

Regulatory Action

Since the enactment of Code §7874, several notices and regulations have been issued, primarily to narrow the opportunities in which a transaction avoids being characterized as an inversion transaction. The rules are extensive and complicated. The following is a brief discussion of several of the more important rules.

Temporary and proposed regulations10 issued in 2012 and recently finalized11 in­clude a safe harbor for the substantial business activities test that is considerably more difficult to meet than a predecessor under prior regulations. Under the rule, an expanded affiliated group will be considered to have substantial business activities in a foreign country if at least 25% of the group's employees, assets, and income are located in or derived from that country.12 This generally means that an employee or asset must be physically present in the country in order to be located there. Income will be considered as derived in a foreign country only if customers are located in the country. Under prior regulations, the safe harbor was set at 10%. The increased safe harbor makes it considerably more difficult for transactions that meet the 60% or 80% thresholds to avoid adverse tax consequences of Code §7874 by relying on the substantial business activities test.

Temporary and proposed regulations issued in 2016 would adopt several rules previously contained in I.R.S. notices,13 including rules on multiple-step inversions. Generally, companies aim to keep inversions below the 60% ownership continuity threshold. That often requires multiple steps. In a typical multiple-step inversion, a foreign corporation acquires more than one U.S. corporation over a short period of time or through one or more corporate inversions that are not within the scope of Code §7874. Through these serial acquisitions or inversions, the value of the foreign corporation increases to the extent that it issues its stock in connection with each successive acquisition, allowing it to undertake another inversion transaction with a larger U.S. corporation while remaining below the 60% and 80% ownership continuity thresholds. In determining the ownership percentage by value, the reg­ulations disregard the stock of the new foreign parent corporation to the extent the value of such stock is attributable to its prior U.S. corporate acquisitions during a specified three-year period.14 To illustrate the effectiveness of this rule, the contem­plated merger of Pfizer with Allergan met the 60% threshold.


1 In the more aggressive corporate inversions of the past, the foreign parent cor­poration typically was formed in a jurisdiction that did not impose any corporate income tax. However, the important keys for choosing a jurisdiction are benign controlled foreign corporation rules, a participation exemption for the receipt of intercompany dividends and the realization of gains from the disposition of shares in a subsidiary, and the absence of withholding tax on dividend pay­ments.

2 Code §7874(a)(2)(B).

3 Code §7874(a)(2)(A).

4 Code §7874(b).

5 Code §7874(a)(1).

6 Code §7874(d)(2).

7 Id.

8 Code §7874(d)(1).

9 Code §§7874(e)(1) and (3).

10 Temporary regulations generally provide guidance until final regulations are ad­opted and have the same authority as final regulations but generally are valid for only three years from the date of issuance. In the rule making process, temporary regulations must be issued with proposed regulations. Proposed regulations are finalized once they undergo review by the public during the pub­lic comment period (a process that can take months or years). Until finalized, proposed regulations are not binding on the I.R.S. or taxpayers. See Code §7805.

11 See T.D. 9761 and T.D. 9812.

12 See Treas. Reg. §1.7874-3.

13 See T.D. 9812.

14 See Treas. Reg. §1.7874-8T.

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