Foreign Tax Credit (Form 1116) Explained for Expats

The Direct Answer

The Foreign Tax Credit (FTC) lets US taxpayers reduce their US income tax by the amount of income tax paid to a foreign government. It is the primary tool for avoiding double taxation for expats. You claim it using Form 1116. The credit is limited - you cannot reduce your US tax below zero using the FTC - but unused amounts carry forward for up to 10 years.

Credit vs. Deduction: Which Is Better?

You have two options for foreign taxes paid:

The credit almost always produces a better result than the deduction. If you take the deduction, you cannot claim the credit for that year, and vice versa.

How the Credit Limitation Works

The Foreign Tax Credit is limited to the US tax attributable to your foreign income. The formula is:

FTC Limit = US Tax x (Foreign Source Income / Worldwide Income)

If your foreign tax rate is higher than your US rate, you will have excess foreign tax credits. If your US rate is higher, you may owe additional US tax after the credit.

Example: You earned $100,000 total ($40,000 from Brazil, $60,000 from the US). Your US tax is $20,000. The limit on your FTC is $20,000 x ($40,000 / $100,000) = $8,000. Even if you paid $10,000 in Brazilian taxes, you can only credit $8,000 this year.

Income Categories (Baskets)

The IRS separates foreign income into categories, called baskets, and the limitation applies separately to each:

• Passive income: Dividends, interest, rents, royalties
• General category income: Wages, business income, active income
• Section 951A income (GILTI): Global intangible low-taxed income from controlled foreign corporations
• Branch income: Income from foreign branches of US companies
• Foreign branch income

You cannot mix credits between baskets. Excess passive credits cannot offset tax on general income, and vice versa. Most individual expats deal only with the passive and general category baskets.

Carryback and Carryforward Rules

If your foreign taxes exceed the FTC limitation in a given year:

• You can carry the excess back one year (by amending a prior return)
• You can carry the excess forward up to ten years

Carryovers must be tracked by category (basket). Keep copies of all Form 1116 filings to document your carryover amounts.

When to Use Form 1116

You must use Form 1116 if:

• Your foreign tax paid exceeds $300 ($600 for married filing jointly), OR
• You have income in more than one foreign country, OR
• Any of your foreign income is not passive income

The Simplified Method (No Form 1116)

You can claim the credit directly on Schedule 3 (line 1) without filing Form 1116 if ALL of the following apply:

1. Your only foreign income is passive income (dividends, interest)
2. All that income and tax is reported on Form 1099-DIV, 1099-INT, or similar
3. Total foreign taxes paid were $300 or less (single) or $600 or less (married filing jointly)
4. You are not filing Form 4563 or excluding income from US possessions

Step-by-Step: Filing Form 1116

1. Gather records of all foreign taxes paid (bank statements, foreign tax returns, Form 1099-DIV Box 7)
2. Determine the income category for each foreign tax payment
3. Complete a separate Form 1116 for each income category
4. Convert all amounts to US dollars using the exchange rate in effect when the tax was paid (or the annual average rate)
5. Calculate the FTC limitation for each category
6. Enter the allowable credit on Schedule 3, line 1, and attach all Form 1116 copies to your return

Taxes That Qualify for the Credit

Foreign taxes must meet the following tests to be creditable:

• Legal and actual foreign tax liability: The tax must be required to be paid
• Income tax or in lieu of an income tax: It must be imposed on net income (not a gross receipts tax or sales tax)
• Imposed on you: You must be legally liable for the tax

Brazilian income tax (Imposto de Renda), Mexican ISR, and similar income taxes generally qualify. Value-added taxes (VAT/IVA/ICMS) do not qualify for the FTC.

Get Your Personalized Form List

Whether you need Form 1116 and how to maximize your Foreign Tax Credit depends on your income sources, the countries involved, and your filing history. Start the free 5-minute diagnostic to get a personalized breakdown for your situation.