calculator

Foreign Tax Credit Calculator

Reviewed by Harsh Agarwal, EA (#00158482)

Description

The Foreign Tax Credit Calculator helps U.S. taxpayers estimate the amount of credit they can claim on their federal tax return for income taxes paid or accrued to foreign countries. The Foreign Tax Credit (FTC) under IRC Section 901 is the primary mechanism for preventing double taxation of income that is taxed by both the United States and a foreign country. However, the FTC is not a simple dollar-for-dollar credit — it is subject to a limitation that ensures you cannot use foreign taxes to offset U.S. tax on U.S.-source income. This calculator performs the FTC limitation calculation prescribed by IRC Section 904, which limits the credit to the proportion of your U.S. tax that corresponds to your foreign-source taxable income relative to your total worldwide taxable income. The formula is: FTC Limitation = U.S. Tax x (Foreign Source Taxable Income / Worldwide Taxable Income). If your creditable foreign taxes exceed this limitation, the excess can be carried back one year or carried forward ten years. The calculator handles both the general category and passive category income baskets separately, as each basket has its own limitation. For taxpayers with Canadian income — one of the most common cross-border scenarios — the calculator includes pre-built support for Canadian federal and provincial tax credits, properly distinguishing between creditable income taxes and non-creditable levies such as CPP contributions and EI premiums. The calculator also models the interaction between the FTC and the Foreign Earned Income Exclusion, helping you understand how electing the FEIE affects your available Foreign Tax Credit by reducing both foreign-source income and the associated foreign taxes in the limitation calculation.

Input Fields

Total Foreign Taxes Paid

Foreign Source Taxable Income

Worldwide Taxable Income

U.S. Tax Liability (before FTC)

Income Category

For accurate results, book a consultation with our tax professionals.

Formula Explanation

FTC Limitation = U.S. Tax Liability x (Foreign Source Taxable Income / Worldwide Taxable Income). The allowable FTC is the lesser of (1) the actual foreign taxes paid or accrued, or (2) the FTC limitation. If foreign taxes exceed the limitation, the excess can be carried back 1 year or carried forward 10 years. Each income category (general, passive) has its own separate limitation.

Example Calculation

Example: U.S. taxpayer with $80,000 foreign earned income (general category), $120,000 total worldwide taxable income, $22,000 U.S. tax liability, and $15,000 Canadian taxes paid. Step 1: FTC Limitation = $22,000 x ($80,000 / $120,000) = $22,000 x 0.6667 = $14,667 Step 2: Compare limitation to taxes paid: $15,000 (paid) vs. $14,667 (limitation) Step 3: Allowable FTC = $14,667 (the lesser amount) Step 4: Excess credit = $15,000 - $14,667 = $333 (can be carried back 1 year or forward 10 years) Step 5: Remaining U.S. tax after FTC = $22,000 - $14,667 = $7,333

Important Disclaimers

This calculator provides a simplified estimate of the Foreign Tax Credit limitation. Actual FTC calculations may be more complex due to expense allocation and apportionment rules, multiple income baskets, the impact of the FEIE on FTC calculations, treaty provisions, and other factors. Foreign taxes must qualify as creditable income taxes under IRC Section 901. This tool is for informational purposes only. Consult a qualified international tax professional for accurate FTC calculations.

Frequently Asked Questions

Can I claim the Foreign Tax Credit for all types of foreign taxes?

No. Only foreign taxes that are the equivalent of a U.S. income tax qualify for the FTC. This generally includes foreign national and subnational income taxes (like Canadian federal and provincial income taxes). Foreign taxes that do not qualify include property taxes, sales taxes (VAT/GST), social insurance contributions, and wealth taxes. The tax must be a compulsory payment, not a voluntary one, and must be based on net income rather than gross receipts.

What if my Foreign Tax Credit exceeds my U.S. tax liability?

If the FTC limitation is less than the foreign taxes you paid, the excess credits are not lost. You can carry back excess credits to the prior tax year (1-year carryback) or carry them forward for up to 10 years. These carryover credits can be used in years when your limitation is higher than your foreign taxes paid. Proper tracking of carryovers across years is essential for optimizing your long-term FTC position.

How does the Foreign Earned Income Exclusion affect my Foreign Tax Credit?

If you elect the FEIE (Form 2555), the excluded income and the foreign taxes attributable to that income are both removed from the FTC calculation. This means you cannot claim an FTC for taxes paid on income you have already excluded. For taxpayers in high-tax countries, this interaction may make the FEIE less beneficial than using the FTC alone. Our calculator helps you understand this interaction so you can choose the optimal strategy.