Foreign Tax Credit 2026: Complete Guide

Avoid double taxation on foreign income with the Foreign Tax Credit. Learn how to calculate it, file Form 1116, and maximize your tax savings.

What Is the Foreign Tax Credit?

The Foreign Tax Credit (FTC) is a federal income tax credit designed to prevent double taxation of income that is taxed by both the United States and a foreign country. The United States taxes its citizens and residents on their worldwide income, regardless of where they live or earn their income. Many foreign countries also tax income earned within their borders. Without the FTC, taxpayers would be taxed twice on the same income — once by the foreign country and once by the United States.

The FTC allows eligible taxpayers to claim a credit for income taxes paid to a foreign country or U.S. possession. The credit is claimed on Form 1116, Foreign Tax Credit, which is filed with your federal income tax return. The credit reduces your U.S. tax liability dollar-for-dollar, which is more valuable than a deduction, which only reduces your taxable income. For example, if you paid $5,000 in foreign income taxes, the FTC would reduce your U.S. tax liability by $5,000, whereas a deduction would only reduce your taxable income by $5,000, resulting in a much smaller tax savings.

It is important to understand that the FTC is a credit for income taxes paid to foreign countries, not for other types of foreign taxes such as property taxes, sales taxes, or value-added taxes. Additionally, the FTC is only available for taxes that are legal and actual foreign tax liabilities — you cannot claim the credit for taxes that were refunded or that you did not actually pay. The FTC is also not available for taxes paid to countries that the United States has designated as state sponsors of terrorism or that do not have a diplomatic relationship with the United States.

Who Is Eligible for the Foreign Tax Credit?

To claim the Foreign Tax Credit, you must meet several eligibility requirements. First, you must be a U.S. citizen, U.S. resident alien, or a nonresident alien who is a bona fide resident of Puerto Rico for the entire tax year. Second, you must have paid or accrued foreign income taxes during the tax year. Third, the foreign taxes must be income taxes — not property taxes, sales taxes, or other types of taxes. Fourth, the foreign taxes must be a legal and actual tax liability — you cannot claim the credit for taxes that were refunded or that you did not actually pay.

Additionally, the FTC is only available for taxes paid to foreign countries and U.S. possessions. You cannot claim the credit for taxes paid to state or local governments in the United States. The FTC is also not available for taxes paid to countries that the United States has designated as state sponsors of terrorism, which currently include Cuba, Iran, North Korea, and Syria. If you paid taxes to one of these countries, you may be able to claim a deduction instead of a credit, but you should consult a tax professional for guidance.

It is also important to understand that the FTC is subject to a limitation, which is designed to ensure that the credit does not exceed your U.S. tax liability on foreign income. The limitation is calculated by multiplying your total U.S. tax liability by the ratio of your foreign source taxable income to your total taxable income. For example, if your total U.S. tax liability is $20,000, your foreign source taxable income is $10,000, and your total taxable income is $50,000, your FTC limitation would be $4,000 ($20,000 x $10,000 / $50,000). If you paid $5,000 in foreign taxes, you could only claim $4,000 as a credit, and the remaining $1,000 could be carried back or carried forward.

How to Calculate the Foreign Tax Credit

The calculation of the Foreign Tax Credit is performed on Form 1116, which requires you to provide detailed information about your foreign income, foreign taxes paid, and U.S. tax liability. The form is divided into several sections, each corresponding to a different category of income. The most common categories are passive income (such as interest, dividends, and royalties), general limitation income (such as wages and business income), and certain other types of income.

For each category, you will calculate a separate FTC limitation. The first step is to determine your foreign source taxable income for each category. This is the income that is subject to foreign taxation and that is included in your U.S. taxable income. The second step is to determine your total taxable income for the year. The third step is to calculate the ratio of foreign source taxable income to total taxable income for each category. The fourth step is to multiply your total U.S. tax liability by this ratio to determine the FTC limitation for each category.

The fifth step is to compare the foreign taxes paid or accrued for each category to the FTC limitation for that category. The credit for each category is the lesser of the foreign taxes paid or the FTC limitation. The total FTC is the sum of the credits for all categories. If your foreign taxes paid exceed the FTC limitation for any category, the excess can be carried back one year and carried forward up to 10 years. This carryover provision ensures that you do not lose the benefit of foreign taxes paid even if you cannot use them in the current year.

Foreign Tax Credit vs. Foreign Earned Income Exclusion

Taxpayers who live and work abroad have two primary options for reducing their U.S. tax liability: the Foreign Tax Credit and the Foreign Earned Income Exclusion (FEIE). The FEIE allows eligible taxpayers to exclude up to $130,000 (for 2026) of foreign earned income from their U.S. taxable income. The FTC allows taxpayers to claim a credit for foreign income taxes paid. In general, the FTC is more beneficial if the foreign tax rate is higher than the U.S. tax rate, while the FEIE is more beneficial if the foreign tax rate is lower than the U.S. tax rate.

You cannot claim both the FTC and the FEIE for the same income. If you claim the FEIE, you must exclude the income from your taxable income, which means you cannot also claim the FTC for taxes paid on that income. However, you may be able to claim the FTC for foreign taxes paid on income that exceeds the FEIE limit. For example, if you earn $150,000 in foreign earned income and exclude $130,000 under the FEIE, you may be able to claim the FTC for foreign taxes paid on the remaining $20,000.

The choice between the FTC and the FEIE depends on your individual circumstances, including your income level, the foreign tax rate, and your U.S. tax rate. In general, the FTC is more beneficial for taxpayers who live in high-tax countries, while the FEIE is more beneficial for taxpayers who live in low-tax countries. You should calculate both options and choose the one that provides the maximum tax benefit. Tax software can help you compare these options and make the optimal choice.

How to File Form 1116

To claim the Foreign Tax Credit, you must file Form 1116, Foreign Tax Credit, with your federal income tax return. Form 1116 is a detailed form that requires you to provide information about your foreign income, foreign taxes paid, and U.S. tax liability. The form must be completed separately for each category of income, and you may need to file multiple Forms 1116 if you have income in multiple categories.

The first section of Form 1116 requires you to provide information about the foreign country or U.S. possession to which you paid taxes, the type of income you received, and the amount of foreign taxes paid or accrued. The second section requires you to calculate your foreign source taxable income and your total taxable income. The third section requires you to calculate the FTC limitation and determine the amount of your credit. The fourth section requires you to calculate any carryback or carryforward of unused foreign taxes.

It is important to keep detailed records of your foreign income and foreign taxes paid, as the IRS may request documentation to support your FTC claim. You should keep copies of foreign tax returns, receipts, and any other documentation that verifies the amount of foreign taxes you paid. Additionally, if you are claiming the FTC for taxes that were accrued but not yet paid, you must pay the taxes within two years of the end of the tax year in which you claimed the credit. Failure to pay the accrued taxes within this time frame may result in the disallowance of the credit.

Foreign Tax Credit for U.S. Possessions

In addition to the Foreign Tax Credit for taxes paid to foreign countries, there is a separate credit for taxes paid to U.S. possessions, such as Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, and the Northern Mariana Islands. The rules for the U.S. possessions credit are similar to those for the foreign tax credit, but there are some important differences. For example, the U.S. possessions credit is available only for taxes paid on income derived from sources within the possession, and the credit is subject to a separate limitation.

If you are a bona fide resident of Puerto Rico for the entire tax year, you may be able to claim the U.S. possessions credit for taxes paid to Puerto Rico on income derived from Puerto Rican sources. However, you cannot claim both the U.S. possessions credit and the Foreign Tax Credit for the same income. Additionally, if you are a U.S. citizen who is a bona fide resident of Puerto Rico, you may be able to exclude Puerto Rican source income from your U.S. taxable income, which can provide a significant tax benefit.

The rules for U.S. possessions are complex, and the tax treatment depends on the specific possession and your individual circumstances. If you have income from a U.S. possession, consult IRS Publication 570, Tax Guide for Individuals With Income From U.S. Possessions, or consult a tax professional for guidance. The tax benefits of living in a U.S. possession can be substantial, but they require careful planning and compliance with specific rules.

Common Foreign Tax Credit Mistakes

One of the most common mistakes taxpayers make with the Foreign Tax Credit is failing to file Form 1116. Some taxpayers mistakenly believe that they can claim the FTC by simply reporting their foreign taxes paid on Schedule A as an itemized deduction. While you can choose to deduct foreign income taxes instead of claiming the credit, this is almost never the better option. The credit reduces your tax liability dollar-for-dollar, while the deduction only reduces your taxable income. Always file Form 1116 to claim the credit unless you have a specific reason to deduct instead.

Another common mistake is claiming the FTC for taxes that are not eligible. As discussed earlier, the FTC is only available for income taxes paid to foreign countries — not for property taxes, sales taxes, or other types of taxes. Additionally, the FTC is not available for taxes that were refunded or that you did not actually pay. Claiming the credit for ineligible taxes can result in the IRS disallowing the credit and assessing back taxes, interest, and penalties.

A third mistake is failing to carry over unused foreign taxes. If your foreign taxes paid exceed the FTC limitation for the current year, the excess can be carried back one year and carried forward up to 10 years. Many taxpayers fail to claim this carryover, which means they lose the benefit of the excess foreign taxes. To avoid this mistake, keep detailed records of your foreign taxes paid and the FTC limitation for each year, and consult IRS Publication 514, Foreign Tax Credit for Individuals, for guidance on the carryover rules.

Planning Strategies for the Foreign Tax Credit

With careful planning, you can maximize the value of the Foreign Tax Credit and minimize your overall tax liability. The first strategy is to time your foreign tax payments to maximize the credit. If you have control over when you pay your foreign taxes, consider paying them in a year when you can fully utilize the credit. For example, if your FTC limitation is higher in one year than another, you may want to accelerate or defer your foreign tax payments to match the year with the higher limitation.

The second strategy is to coordinate the FTC with the Foreign Earned Income Exclusion. As discussed earlier, you cannot claim both the FTC and the FEIE for the same income. However, you may be able to claim the FEIE for some income and the FTC for other income. For example, if you earn $200,000 in foreign earned income and the FEIE limit is $130,000, you could exclude $130,000 under the FEIE and claim the FTC for foreign taxes paid on the remaining $70,000. This combined approach can provide significant tax savings.

The third strategy is to consider the tax implications of your foreign investments. If you have foreign investments that generate income subject to foreign withholding taxes, you may be able to claim the FTC for those taxes. However, the FTC limitation may prevent you from fully utilizing the credit. In some cases, it may be more advantageous to hold foreign investments in a tax-advantaged account such as an IRA, where the foreign taxes may not be subject to the FTC limitation. Consult a tax professional or financial advisor to develop a comprehensive international tax strategy.