Inverted Domestic Corporation: Examples and Section 7874 Rules

An inverted domestic corporation is a U.S.-based company that has reorganized itself under a foreign parent, usually through a merger with a foreign business, so that the top of the corporate structure sits in a lower-tax country while the actual operations, employees, and management stay in the United States. Under Section 7874 of the Internal Revenue Code, the new foreign parent is labeled a “surrogate foreign corporation,” and how much U.S. tax the group still owes depends on how much of that parent the former U.S. shareholders end up owning.¹

How the Restructuring Actually Happens

The mechanics are simpler than the reputation suggests. A U.S. parent company merges with or acquires a foreign company, and a new holding company is set up in the foreign country. That new foreign holding company becomes the ultimate parent of the combined group, and the original U.S. company becomes one of its subsidiaries.

The foreign jurisdiction is chosen for its tax environment. Before 2018, Ireland was the most popular destination because of its 12.5% corporate tax rate, since raised to 15% for large multinationals under the OECD global minimum tax rules. The restructuring changes the company’s legal home without moving its headquarters, employees, or day-to-day business. Medtronic still runs its operations out of Minneapolis after inverting to Ireland.

One requirement matters more than any other on the execution side. Section 7874 includes a “substantial business activities” test: the new foreign parent must have real operations in the country where it is incorporated.¹ A mailbox operation will not survive review. That is why nearly every inversion involves acquiring a genuine foreign company with real people and real revenue, not simply reincorporating abroad.

The Section 7874 Ownership Tests

The IRS does not take a company’s new foreign address at face value. Section 7874 sorts inversions into three tiers based on how much stock in the new foreign parent former U.S. shareholders hold. The more they hold, the less the inversion accomplishes.

If former U.S. shareholders own 80% or more of the new foreign parent by vote or value, the IRS treats it as a domestic corporation for all tax purposes. The inversion is effectively nullified.¹
If they own at least 60% but less than 80%, the foreign parent is recognized as foreign, but the company is classified as a surrogate foreign corporation and faces punitive rules for ten years. During that window, it cannot use losses, credits, or other deductions to offset gains from transferring assets or licensing property to related foreign entities.¹
If they end up with less than 60%, the entity is fully recognized as foreign with no special inversion penalties.

The practical result of these tiers: the foreign merger partner has to be large enough to dilute the former U.S. shareholders below one of these thresholds. A small shell company in Ireland will not do the job. The U.S. company needs a genuinely substantial foreign business to combine with, which is why most inversions involve billion-dollar cross-border deals.

Why Companies Did This

Before the 2017 tax overhaul, the United States taxed corporations on worldwide income. A U.S. company owed tax on profits earned anywhere, though it could defer that tax by leaving the money in foreign subsidiaries. The tax came due only when the earnings were brought back to the United States as dividends.²

That created enormous pools of cash sitting overseas. Companies did not want to bring it home because voluntary repatriation triggered the full 35% corporate rate, minus credits for foreign taxes already paid. By some estimates, U.S. multinationals had accumulated trillions of dollars in unrepatriated foreign earnings. An inversion solved the problem: once the parent was foreign, the group could access those overseas profits without routing them through the U.S. tax system.

Earnings Stripping

The second benefit kicked in after the restructuring closed. The U.S. subsidiary, now owned by a foreign parent, could make deductible payments to that parent as interest on intercompany loans, royalties for intellectual property, or management fees. Each payment reduced the subsidiary’s taxable income in the United States while the foreign parent received the money in a low-tax jurisdiction. Tax professionals call this “earnings stripping.”

The math was compelling. A U.S. subsidiary borrowing from its Irish parent and paying interest at market rates could shift millions in taxable income from a 35% environment to a 12.5% one. Regulators eventually chipped away at the strategy, but for years it was one of the most reliable sources of post-inversion savings.

Examples of Companies That Inverted

Medtronic (2015)

Medtronic completed one of the largest inversions on record in January 2015 by acquiring the Irish-domiciled healthcare company Covidien. The combined entity, Medtronic PLC, established its legal home in Ireland.³ The deal was valued at roughly $50 billion, large enough to push former Medtronic shareholders below the critical ownership thresholds. Medtronic’s effective tax rate was already about 18%, and the company projected the inversion would shave roughly two more percentage points off that rate.⁴

Eaton Corporation (2012)

Eaton, a Cleveland-based power management company, inverted in 2012 by acquiring the Irish-incorporated Cooper Industries. The combined Eaton Corporation PLC took up legal residence in Ireland while keeping its operational headquarters in the United States.⁵ Eaton framed the deal as a strategic acquisition, but the Irish domicile gave it a territorial tax system and more efficient intercompany cash management.

Restaurant Brands International (2014)

When Burger King merged with the Canadian coffee chain Tim Hortons in 2014, the resulting Restaurant Brands International set up its legal home in Canada. Canada’s corporate rate was not as low as Ireland’s, but it was meaningfully below the U.S. rate at the time. Tim Hortons was large enough to keep former Burger King shareholders below the 60% threshold. The deal, backed by 3G Capital, drew consumer boycott calls and political criticism.

AbbVie and Shire (2014, Failed)

AbbVie proposed a roughly $54 billion acquisition of Shire PLC, incorporated in Jersey, with plans to redomicile and cut its effective tax rate substantially. The merger agreement did not include a clause letting AbbVie walk away if tax laws changed, and pulling out for any reason meant a breakup fee of about $1.64 billion. The Treasury Department issued Notice 2014-52 shortly after the deal was announced, signaling regulations that would strip away much of the expected tax benefit. AbbVie terminated the acquisition and paid the fee.⁶

What Changed After 2017

The 2017 Tax Cuts and Jobs Act did more to drain the incentive for inversions than a decade of targeted regulations. It attacked the problem from several sides at once.

A Lower Corporate Rate

The TCJA permanently cut the U.S. corporate income tax rate from 35% to 21%.² The gap between U.S. rates and rates in typical inversion destinations shrank considerably. The difference between 21% and Ireland’s 15% is not the old spread between 35% and 12.5%.

A Shift to Territorial Taxation

The law moved the United States from a worldwide system to a modified territorial one. Dividends from foreign subsidiaries owned by U.S. corporations are largely exempt from U.S. income tax.⁷ If foreign income is already exempt, the core reason for moving the parent abroad disappears.

The One-Time Repatriation Tax

To deal with the trillions in accumulated offshore earnings, the TCJA imposed a mandatory one-time tax whether or not companies brought the money home. The rate was 15.5% on earnings held in cash or cash equivalents and 8% on earnings held in illiquid assets.² The trapped-cash problem dissolved.

GILTI and BEAT

Two anti-abuse taxes now sit on top of the new territorial system. Global Intangible Low-Taxed Income (GILTI) requires U.S. shareholders of foreign corporations to pay a minimum level of tax on foreign earnings above a routine return on tangible assets. For 2026, the effective minimum rate on GILTI income is roughly 13.125%, up from 10.5% in earlier years.

The Base Erosion and Anti-Abuse Tax (BEAT) targets the earnings stripping that made post-inversion structures so profitable. It applies to corporations with at least $500 million in average annual gross receipts and a base erosion percentage of 3% or more, and for tax years beginning in 2026 the BEAT rate is 12.5%, up from 10% in 2019 through 2025.⁸

The Excise Tax on Insider Stock Compensation

Section 4985 imposes a 15% excise tax on the stock-based compensation of officers, directors, and 10% shareholders of a company that completes an inversion. The tax applies to equity compensation held during the period from six months before to six months after the inversion closes.⁹ If the company pays the excise tax on behalf of its executives, that payment is itself treated as additional stock compensation subject to the same 15% tax. The executives who approve an inversion have personal money on the line.

If You Owned Shares in a Company That Inverted

For individual shareholders, an inversion is not only a corporate-level event. When old U.S. shares are exchanged for new foreign parent shares, shareholders may need to recognize gain or report dividend income depending on the specifics of the transaction. Section 367 governs these exchanges, and the IRS has issued detailed regulations requiring income inclusion in certain inversion-related reorganizations.⁶

Companies that complete an inversion must file Form 8937, which reports how the transaction affects the tax basis of shareholders’ securities. A copy or an equivalent written statement has to go to every shareholder of record by January 15 of the year following the transaction, and many issuers satisfy this by posting the form on their investor relations page, where it must stay accessible for ten years.¹⁰ If you held shares in a company that inverted, check for that filing before preparing your return, because your cost basis in the new shares may differ from what you originally paid.

Where Inversions Stand Now

The inversion wave that peaked in 2014 and 2015 has effectively ended. The lower U.S. rate, the territorial shift, and the anti-abuse provisions removed most of the financial incentive, and no major U.S. company has completed a tax-motivated inversion since the TCJA took effect.

Internationally, the OECD’s Pillar Two framework introduced a 15% global minimum tax aimed at the kind of tax competition that made inversions attractive. The United States announced in January 2026 that it would not implement Pillar Two, leaving some uncertainty about how those rules interact with existing U.S. anti-inversion provisions.

Section 7874 itself remains fully in force. If the U.S. corporate rate rose significantly, the ownership tests, substantial-business-activities requirement, and Treasury regulations would matter again immediately. The companies that already inverted, including Medtronic and Eaton, remain incorporated abroad, and unwinding an inversion is far harder than executing one. For now, the strategy is dormant rather than extinct.

1
Office of the Law Revision Counsel. 26 USC 7874 – Rules Relating to Expatriated Entities and Their Foreign Parents
2
Internal Revenue Service. Tax Cuts and Jobs Act – A Comparison for Large Businesses and International Taxpayers
3
Securities and Exchange Commission. Medtronic Completes Acquisition of Covidien
4
Securities and Exchange Commission. Form 425 – Fact Sheet
5
U.S. Securities and Exchange Commission. Joint Press Release, Dated September 12, 2012
6
Internal Revenue Service. IRS Notice 2014-52 – Rules Regarding Inversions and Related Transactions
7
Legal Information Institute. Tax Cuts and Jobs Act of 2017
8
Internal Revenue Service. IRC 59A Base Erosion Anti-Abuse Tax Overview
9
Office of the Law Revision Counsel. 26 U.S. Code 4985 – Stock Compensation of Insiders in Expatriated Corporations
10
Internal Revenue Service. Instructions for Form 8937 – Report of Organizational Actions Affecting Basis of Securities