Foreign Tax Credit Limitation

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The Foreign Tax Credit limitation is the rule that caps how much Foreign Tax Credit a U.S. taxpayer can claim in a given year. It prevents the credit from reducing U.S. tax by more than the amount of U.S. tax attributable to foreign-source taxable income.

Why it matters for U.S. expats

Paying foreign tax does not always mean the full amount can be used as a U.S. credit right away. The Foreign Tax Credit limitation can restrict the current-year credit based on foreign-source income, deductions, U.S. tax liability, and separate income categories such as general category income and passive category income. When the limit blocks part of the credit, the unused amount may become a carryback or carryover.

Common questions

1. How does the Foreign Tax Credit limitation work?

The limitation compares foreign-source taxable income with total taxable income, then limits the credit to the U.S. tax connected to that foreign-source income.

2. Why can’t U.S. expats always claim all foreign taxes paid?

The Foreign Tax Credit is designed to reduce double taxation, not offset U.S. tax on U.S.-source income. If foreign tax paid is higher than the U.S. tax allowed for that foreign-source income category, part of the credit may be limited.

3. Is the Foreign Tax Credit limitation calculated on Form 1116?

Yes. Form 1116 is used to calculate the Foreign Tax Credit limitation for individuals, estates, and trusts claiming the credit.

4. Does the limitation apply separately to different types of income?

Yes. Foreign income is divided into separate categories, and the limitation is calculated separately for each category.

5. What income categories matter for the Foreign Tax Credit limitation?

The most common categories for U.S. expats are general category income and passive category income. Other categories can apply for foreign branch income, Section 951A income, treaty-resourced income, and certain sanctioned-country income.

6. Can unused Foreign Tax Credits carry forward?

Yes. Unused Foreign Tax Credits can often be carried back one year and carried forward ten years, but special restrictions apply to some categories.

7. Can the Foreign Tax Credit limitation create U.S. tax even after paying foreign tax?

Yes. If the foreign tax does not fit the same income category, is not creditable, is connected to excluded income, or exceeds the limitation, U.S. tax may still be due.

8. Does the Foreign Earned Income Exclusion affect the Foreign Tax Credit limitation?

Yes. Foreign tax paid on income excluded under the Foreign Earned Income Exclusion cannot also be used for the Foreign Tax Credit.

9. Does foreign-source income mean the same thing as foreign earned income?

No. Foreign-source income is based on U.S. sourcing rules and can include earned and unearned income. Foreign earned income is income from services performed abroad.

10. What records are needed to calculate the Foreign Tax Credit limitation?

Keep foreign tax returns, wage statements, payslips, investment records, rental records, proof of foreign tax paid or accrued, exchange-rate calculations, and details showing which income category each item belongs in.

Related forms

• Form 1116: Claiming the Foreign Tax Credit
• Form 1040: U.S. Individual Income Tax Return
• Form 1040-X: Amended U.S. Individual Income Tax Return
• Form 2555: Foreign Earned Income Exclusion

When to get help

Professional guidance is important when:

• You paid foreign tax but cannot use the full credit in the current year.
• You have both general category income and passive category income.
• You have foreign wages, investments, pensions, rental income, or business income.
• You claimed or plan to claim the Foreign Earned Income Exclusion.
• You have unused Foreign Tax Credits from prior years.
• You need to calculate carrybacks or carryovers.
• You received a foreign tax refund or adjustment after filing.

Bright!Tax can calculate the Foreign Tax Credit limitation, separate income into the correct categories, and track unused credits for carryback or carryover. Get started with Bright!Tax.

Related Bright!Tax guides

• What is the Foreign Tax Credit? Your guide to avoiding double tax
• How the Foreign Tax Credit limitation works
• Foreign Tax Credit vs. Foreign Earned Income Exclusion

Official sources

• IRS: Foreign Tax Credit
• IRS: Publication 514, Foreign Tax Credit for Individuals
• IRS: Instructions for Form 1116

Reviewed by

Katelynn Minott, CPA & CEO

Last reviewed

July 2026