What is Controlled Foreign Corporation (CFC)?

CFC rules are the IRS's way of preventing Americans from deferring taxes by parking income in foreign corporations. If you own a foreign company, you need to understand this.

Why CFC Rules Exist

Without CFC rules, a US person could:

1. Form a company in a zero-tax jurisdiction
2. Route income through that company
3. Never pay US tax until they distributed the income to themselves
4. Potentially never distribute it at all

CFC rules close this loophole by taxing certain types of income immediately, even if the money stays in the foreign company.

When Does a Company Become a CFC?

A foreign corporation is a CFC when US shareholders (each owning 10% or more) collectively own more than 50% of the total voting power or value.

Important: For a sole-owner digital nomad with a foreign company, your company is automatically a CFC.

What Income Gets Taxed Immediately (Subpart F)

Even if you don't take any money out of the company, the following income is taxed to you personally:

• Passive income: Interest, dividends, rents, royalties
• Foreign base company sales income: Buy from related party, sell to third party (or vice versa), where the goods don't touch the CFC's country
• Foreign base company services income: Services performed outside the CFC's country for a related party
• GILTI (Global Intangible Low-Taxed Income): Essentially all active business income above a 10% return on tangible assets

GILTI: The Big One for Nomads

Since the 2017 Tax Cuts and Jobs Act, GILTI captures most CFC income that Subpart F didn't already catch. For individual US shareholders:

• GILTI is taxed at ordinary income rates (up to 37%)
• The Section 250 deduction (50% of GILTI) is only available to C corporations, not individuals
• This means a nomad with a foreign company pays full US tax rates on GILTI — often making the foreign company tax-neutral or even tax-negative compared to just operating as a sole proprietor

The Nomad's Dilemma

Many digital nomads are advised to form foreign companies (Estonian e-Residency company, Hong Kong Ltd, etc.) for tax savings. The reality for US citizens:

Structure	Tax Result
US LLC (disregarded entity)	Taxed as self-employment, but simple
Foreign corp (CFC)	GILTI/Subpart F applies — often worse
Foreign LLC (check-the-box)	Can elect corporate or pass-through treatment

Bottom line for US persons: A foreign corporation rarely provides tax benefits due to CFC/GILTI rules. A Wyoming LLC is usually simpler and more tax-efficient.

Required Filings

US shareholders of CFCs must file:

• Form 5471 (Information Return of US Persons with Respect to Certain Foreign Corporations) — one of the most complex IRS forms
• Penalties for failure to file: $10,000 per form per year
• Form 8992 (GILTI calculation)
• Form 8993 (if applicable, for FDII deduction)

Non-US Persons

CFC rules only apply to US persons. If you've expatriated or are not a US citizen/resident, CFC rules are irrelevant to you — which is one of the reasons some Americans expatriate.