Owning a Foreign Corporation as a U.S. Taxpayer: Form 5471, CFCs & GILTI

Form 5471: an information return with real consequences

Form 5471 is filed with your U.S. income tax return by certain U.S. officers, directors, and shareholders of foreign corporations. Which schedules apply depends on the filing category — a first-year acquisition, a control position, or continuing ownership in a controlled foreign corporation each pull in different disclosures, from an income statement and balance sheet in U.S. dollars to intercompany transactions and earnings and profits.

The penalty structure is the reason this form deserves attention. A missed or substantially incomplete Form 5471 carries a penalty per form and per year, with additional amounts if the failure continues after notice, and it can hold the entire tax year's statute of limitations open. The penalty is not tied to whether tax was owed, which is why a small dormant company abroad can produce an outsized problem.

What makes a company a controlled foreign corporation

A foreign corporation is generally a controlled foreign corporation (CFC) when U.S. shareholders — U.S. persons each owning 10% or more of the vote or value — together own more than 50% of the company. That test sounds mechanical, but the ownership counted is not just what you hold directly. Attribution rules can treat shares held by family members, by partnerships and trusts you are connected to, and by related entities as yours for the test.

Attribution is where owners are most often surprised. A 30% direct interest can become a controlling position once a spouse's or a related company's shares are counted. Because CFC status determines whether the more burdensome rules apply, ownership should be mapped carefully rather than estimated, and mapped again whenever shares move.

Subpart F and GILTI: tax without a distribution

Once a company is a CFC, a 10% U.S. shareholder can be taxed currently on certain of the company's earnings. Subpart F targets more mobile categories of income — many types of passive income, certain related-party sales and services income, and similar items. GILTI, enacted as part of the 2017 law, reaches much of what remains: broadly, active earnings above a routine return on the company's tangible depreciable assets.

The practical effect is that a profitable operating company abroad can generate a U.S. inclusion for its U.S. owner in the same year the profits are earned, whether or not the board declares a dividend. Owners who leave earnings in the company to fund local growth are frequently the ones caught off guard.

A simplified example

A U.S. resident owns 100% of an operating company in Colombia. The company earns the equivalent of USD 400,000, pays local corporate tax, reinvests everything, and distributes nothing. The company is a CFC. A GILTI inclusion is generally computed at the shareholder level, reduced by a deemed return on qualifying tangible assets, and reported on the U.S. return for that year. Whether U.S. tax is actually due after available credits and elections depends on the local tax rate, the shareholder's status, the elections made, and the company's asset profile — but the inclusion itself is not optional, and it arrives with no cash attached.

The relief exists, but it has to be claimed correctly

• Certain elections can change how a U.S. individual shareholder is taxed on CFC inclusions, and can affect access to indirect foreign tax credits.
• Foreign tax credits may reduce double taxation, subject to limitation categories and, for some baskets, haircuts on the credit allowed.
• The classification of the foreign entity for U.S. purposes — corporation, partnership, or disregarded entity — changes the analysis entirely, and a check-the-box election is generally prospective.
• Treaties may matter for withholding and for residency questions, though they rarely switch off CFC inclusions for a U.S. shareholder.

Each of these depends on facts that vary from one shareholder to the next, and several are elections with timing limits. The order of operations matters more here than in most areas of U.S. tax: a decision made after the fact often cannot be recreated.

If you are already behind on Form 5471

Unfiled Forms 5471 are common, particularly among people who built a business abroad before moving to the United States or before learning that U.S. citizenship carries worldwide obligations. Corrective paths exist, and the right one depends on whether the failure was non-willful, whether U.S. tax is owed on the underlying earnings, and how many years are involved. Filing a stack of late forms without first evaluating the position can foreclose better options.

Where planning changes the outcome

The most valuable work usually happens before the structure exists or before ownership shifts — choosing the entity form, deciding where activity and assets sit, planning distributions, and coordinating with the tax rules of the company's home country. If you are contemplating a move to the United States while holding a foreign company, read our companion article on foreign business owners becoming U.S. tax residents, and our broader guide to pre-immigration planning.

Sources and official references

• IRS — About Form 5471
• IRS — Global Intangible Low-Taxed Income (GILTI)