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Connect on LinkedInSubpart F income is certain income earned by a controlled foreign corporation, or CFC, that may be taxed to U.S. shareholders before the income is actually distributed. For U.S. expats who own shares in a foreign corporation, Subpart F can turn company-level income into current U.S. taxable income on the shareholder’s personal or business return.
Why it matters for U.S. expats
Subpart F income matters because some U.S. expats who own foreign corporations may owe U.S. tax on company income they have not personally received. It can also create Form 5471 reporting, foreign tax credit questions, and planning issues for expat business owners with passive income, related-party transactions, or other CFC income categories.
Common questions
1. What is Subpart F income?
Subpart F income is a category of CFC income that U.S. shareholders may need to include in taxable income currently, even if the foreign corporation does not distribute the money.
2. What types of income can be Subpart F income?
Subpart F income can include certain insurance income, foreign base company income, and other categories listed under the CFC rules. In practice, it often affects passive or easily movable income, such as certain dividends, interest, rents, royalties, and related-party income.
3. Who has to report Subpart F income?
A U.S. shareholder of a controlled foreign corporation may need to report their pro rata share of Subpart F income. A U.S. shareholder generally means a U.S. person who owns at least 10% of the foreign corporation’s vote or value.
4. Is Subpart F income only taxed when distributed?
No. Subpart F income can be taxed to the U.S. shareholder even if the CFC keeps the income inside the company and does not make a distribution.
5. How is Subpart F income reported?
Subpart F income is usually reported through Form 5471 and the relevant schedules. The income inclusion then flows to the U.S. shareholder’s tax return.
6. Is Subpart F income the same as GILTI?
No. Subpart F and GILTI are separate CFC income regimes. Both can create current U.S. tax on foreign company income, but they use different rules and calculations.
7. Can foreign taxes reduce U.S. tax on Subpart F income?
Sometimes. Foreign tax credits may help reduce double taxation, but the rules depend on the taxpayer, the type of income, the entity structure, and whether elections such as a Section 962 election apply.
8. Does every foreign corporation create Subpart F income?
No. Subpart F applies only when the foreign corporation is a CFC and has income that falls into a Subpart F category. Many foreign companies still require Form 5471 reporting even when there is no Subpart F income.
Related forms
- Form 5471: Do you need to report your foreign corporation?
- Schedule I (Form 5471): Summary of Shareholder’s Income From Foreign Corporation
- Form 8992: Reporting GILTI as a U.S. shareholder
When to get help
Professional guidance is important when:
- You own 10% or more of a foreign corporation.
- U.S. persons together own more than 50% of a foreign corporation.
- Your foreign company earns passive income, related-party income, rents, royalties, dividends, or interest.
- You need to file Form 5471 or are unsure which schedules apply.
- You may have both Subpart F income and GILTI income.
- You are considering a Section 962 election.
- You want to avoid double taxation between the United States and the country where the company is based.
- You missed prior-year Form 5471 reporting or CFC income inclusions.
Bright!Tax can help identify whether your foreign corporation is a CFC, calculate Subpart F income, and coordinate Form 5471 with your U.S. expat tax return. Get started with Bright!Tax.
Related Bright!Tax guides
- Filing Form 5471: A guide to reporting foreign corporations
- What is GILTI? What expats need to know about IRS Form 8992
- Section 962 election: What it means for U.S. tax on foreign business income
- Foreign Tax Credit: How expats can lower their U.S. tax bill
Official sources
- IRS: Instructions for Form 5471
- IRS: About Form 5471
- Cornell Legal Information Institute: 26 U.S. Code § 952
- Cornell Legal Information Institute: 26 U.S. Code § 957
Reviewed by
Katelynn Minott, CPA & CEO
Last reviewed
July 2026