Foreign tax credit vs earned income exclusion: what you give up

The core rule

The publication ties these two benefits together in two separate places. In the chapter on the exclusion it says that once you have made a foreign earned income exclusion election or a foreign housing exclusion election, you cannot take a foreign tax credit or deduction for foreign taxes on the income you choose to exclude. In the chapter on deductions and credits it repeats the rule and extends it to the territory exclusion. If your wages are completely excluded, you cannot deduct or take a credit for any of the foreign taxes paid on your wages.

That is why a straight comparison between the two is really a comparison of what you do with each slice of income. A high earner is not forced into all-or-nothing. The publication notes that if you are a high wage earner you can take the exclusion up to the limit for the year and then take a foreign tax credit for foreign taxes paid on the portion of the wage that was not excluded.

Allocating tax when only part of the wages is excluded

When you exclude only part of your wages, you cannot deduct or credit the foreign income taxes allocable to the excluded part. The publication finds them by applying a fraction to the foreign taxes paid on foreign earned income received during the year. The top of the fraction is your excluded foreign earned income received during the year minus deductible expenses allocable to that income, not counting the foreign housing deduction. The bottom is your total foreign earned income received during the year minus all deductible expenses allocable to it, including the foreign housing deduction. If foreign law taxes earned income together with another type of income and the taxes cannot be separated, the bottom of the fraction is the total income subject to foreign tax minus deductible expenses allocable to it.

The calculator above implements that fraction and shows both halves: the foreign tax you lose and the foreign tax that remains available for a credit or itemized deduction. Leave the two optional expense boxes empty if you have no allocable expenses.

The publication's own example, reproduced

In the deduction section the publication gives a case. A U.S. citizen qualifies to exclude foreign earned income. The excluded wages in Country X are $70,000, on which income tax of $10,000 was paid. The person also received dividends from Country X of $2,000 and paid income tax of $600 on them. The $600 can be deducted because the dividends are subject to U.S. tax. The $10,000 cannot be deducted because the wages are excluded.

Try it: enter 70000 for excluded income, 70000 for total foreign earned income and 10000 for foreign tax. The fraction is 1, so all $10,000 is lost. The dividend tax never enters the fraction, because the dividends are not foreign earned income. The calculator adds a second illustration with different numbers of our own, clearly labelled as ours, to show a partial exclusion.

Other things the exclusion switches off

The foreign tax credit is not the only benefit that interacts with the exclusion. The publication says that if you have made a foreign earned income exclusion election, a foreign housing exclusion election, or taken the foreign housing deduction, you cannot take the additional child tax credit in the same year. If you elect the foreign earned income exclusion you do not qualify for the earned income credit for the year. Each of those is an either-or decision, made year by year.

How the choice gets revoked without a statement

A choice to exclude stays in effect for that year and all later years unless you revoke it, and the publication spells out that taking a foreign tax credit or deduction, the additional child tax credit or the earned income credit in a later year is treated as revoking the choice for that year. The practical result: do not claim a credit on income you could have excluded without understanding that you may be undoing the election. The caution in the credits chapter says the same: if you take the credit for tax on income you could have excluded, one or both choices may be considered revoked. The revocation rules, including the 5-year bar on re-electing, are covered on the page about revoking the exclusion.

Credit mechanics in brief

If you do claim the credit, Form 1116 is generally used to compute it, although there is an exemption from the limit, and from filing Form 1116, if your only foreign source income is passive income reported on a payee statement, your qualifying foreign taxes are not more than $300 ($600 on a joint return) and you elect the procedure. Credit not usable because of the limit can be carried back 1 year and forward 10. The credit is limited to the part of your total U.S. tax in proportion to taxable income from foreign sources compared with total taxable income, and it cannot exceed your actual foreign tax liability. These mechanics are in the publication's chapter on deductions and credits; the form-line detail lives in the Form 1116 instructions.

Sources

• IRS Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad (12/2025): Chapter 4: Effect of Choosing the Exclusions and Deduction; Chapter 5: Deductions and Credits (Foreign Taxes Paid on Excluded Income, Credit for Foreign Income Taxes, Deduction for Foreign Income Taxes). Read November 2, 2026.

Edition read: Publication 54 (12/2025), Tax Guide for U.S. Citizens and Resident Aliens Abroad. This edition is a continuous-use revision and no longer prints annual inflation-adjusted amounts such as the maximum exclusion; dollar figures on this page are the ones printed in the publication's own examples. Check the current publication, Form 2555 instructions and form instructions for your tax year. This page summarizes the publication and does not replace it.