Foreign Tax Credit — Avoiding Double Taxation on Foreign Income

If you pay income taxes to a foreign country, the United States generally lets you claim a dollar-for-dollar credit against your U.S. tax bill for those same taxes. This prevents the same income from being taxed twice — once by the foreign country where it was earned and again by the U.S. on its worldwide taxation of citizens and residents. The foreign tax credit (FTC), governed primarily by 26 U.S.C. §§ 901–909, is one of the most important tools available to Americans living abroad, investors with foreign portfolio income, and U.S. multinational corporations — but its rules are also among the most complex in the Internal Revenue Code.

Current Law (2026)

Legal Authority

• 26 U.S.C. § 901 — Core foreign tax credit: allows credit for income taxes paid or accrued to foreign countries; taxpayer election; applies to individuals, corporations, estates, trusts, and partnership share-through
• 26 U.S.C. § 903 — Taxes in lieu of income taxes: taxes that substitute for income taxes (like turnover taxes or gross receipt taxes that substitute for a net income tax) qualify as creditable
• 26 U.S.C. § 904 — FTC limitation: credit cannot exceed U.S. tax attributable to foreign-source income; separate limitation categories (baskets) prevent cross-crediting between types of income
• 26 U.S.C. § 905 — Applicable rules: credit may be taken in year taxes accrue (even if not yet paid); adjustments required if accrued taxes differ from amounts paid; taxpayer must substantiate total foreign income, country-by-country amounts, and other required information
• 26 U.S.C. § 906 — Nonresident aliens and foreign corporations engaged in U.S. trade or business may claim credit for foreign taxes on income effectively connected with that U.S. business
• 26 U.S.C. § 907 — Foreign oil and gas: special limitation on FTC for oil and gas extraction taxes, preventing use of excess oil extraction taxes to shelter non-oil income
• 26 U.S.C. § 908 — International boycott: credit reduced if taxpayer cooperates with boycotts of Israel (or other countries on the Treasury Department boycott list)
• 26 U.S.C. § 909 — Suspended foreign taxes: foreign tax credit is suspended until the related income is recognized under U.S. tax rules; prevents foreign tax credit claims when the income that was taxed hasn't yet been included in U.S. taxable income

Who Can Claim the Foreign Tax Credit

The credit is available to:

• U.S. citizens on worldwide income (whether living in the U.S. or abroad)
• Resident aliens subject to U.S. tax on worldwide income
• U.S. corporations on their worldwide income (but subject to TCJA territorial system modifications for dividends from foreign subsidiaries)
• Nonresident aliens and foreign corporations engaged in a U.S. trade or business — on foreign taxes paid on income effectively connected with that U.S. business
• Partners and S-corp shareholders — proportionate share of entity-level foreign taxes

You must have actually paid or accrued the foreign tax. Taxes that were refunded, that you had a legal right to avoid paying, or that went to a boycott-participating country may not qualify.

The Limitation — Preventing Overly Generous Credits

The single most important rule is the § 904 limitation. The credit cannot exceed:

U.S. tax × (foreign-source income / total taxable income)

In plain terms: the credit is capped at the U.S. tax you would owe on your foreign income if it were taxed at the U.S. rate. This prevents a situation where taxes paid at high foreign tax rates generate enough credits to wipe out U.S. tax on your domestic income.

Example: You earn $50,000 in wages in Germany, pay $18,000 in German income taxes, and have $100,000 in total taxable income with $25,000 in U.S. tax. Your FTC limitation is $25,000 × ($50,000 / $100,000) = $12,500. Even though you paid $18,000 in German taxes, you can only use $12,500 this year. The excess $5,500 carries back 1 year or forward 10 years.

The Basket System — No Cross-Crediting

If one overall limitation applied to all foreign income, taxpayers could use high taxes paid on one type of income (say, passive interest income in a high-tax country) to offset U.S. tax on other foreign income that was taxed at a low rate. Congress created "separate limitation categories" — called baskets — to prevent this.

The main baskets under current law are:

Passive income basket — Dividends, interest, royalties, rents, and annuities that would otherwise be taxed as passive income. The limitation is calculated separately for passive income, preventing use of excess general-basket credits against passive income.

General income basket — Wages, business income, and other active income that doesn't fall into another category. Most working Americans with foreign employment income use this basket.

GILTI basket — A separate limitation for income from GILTI (global intangible low-taxed income under § 951A). Corporations can use only 90% of foreign taxes paid on GILTI — so even if a foreign country imposes the full 21% corporate rate, only 90% is creditable against the GILTI tax, leaving some residual U.S. tax. This basket prevents corporations from using high foreign taxes on GILTI to eliminate U.S. tax on domestic income.

Other baskets — Certain income from foreign branches, certain dividends from controlled foreign corporations, and amounts subject to specific rules have their own limitation categories.

Cash vs. Accrual Basis for the Credit

Under § 905, the FTC may be claimed in the year taxes accrued — meaning the year the foreign tax liability became fixed and determinable — rather than waiting until you actually pay. This follows your overall method of accounting. If you use the accrual method (or elect to), you claim the credit when the foreign tax liability is established.

The tradeoff: if accrued taxes are later paid in a different amount, refunded, or adjusted, you must redetermine your FTC for the prior year and potentially pay interest on any U.S. tax underpayment. The IRS has 10 years (instead of the normal 3) to assess tax resulting from a foreign tax redetermination.

Taxes That Qualify

Not every payment to a foreign government qualifies. The tax must:

1. Be a tax (not a fee or user charge)
2. Be imposed on income, war profits, or excess profits — not on assets, gross receipts, or consumption
3. Be a compulsory payment — you can't voluntarily pay more than legally required and claim a credit

§ 903 in-lieu taxes: A foreign tax that substitutes for an income tax can still qualify, even if it's technically structured differently. For example, some countries impose a gross receipts tax on certain industries instead of a net income tax; if it functions as a substitute income tax, it qualifies under § 903. Treasury regulations under § 903 require that the tax be an exclusive substitute — not just a business license or regulatory fee alongside an income tax.

The Foreign Tax Credit vs. the Foreign Earned Income Exclusion

Americans living abroad have a choice (for the same income, not both):

Foreign Tax Credit (§ 901): Keeps foreign wages in U.S. taxable income but credits the foreign tax paid. Better when the foreign tax rate is similar to or higher than the U.S. rate. Does not reduce your gross income, so AGI-based limitations (like on IRA deductions or other deductions) are unaffected. Carries forward unused credits.

Foreign Earned Income Exclusion (§ 911): Excludes up to $132,900 (2026 indexed amount) of foreign wages from U.S. gross income entirely. Better when the foreign tax rate is lower than the U.S. rate. But income excluded under § 911 cannot generate FTC credits — you can't exclude income and also claim a credit for the foreign taxes on it.

The optimal choice depends on the foreign effective tax rate, your U.S. tax bracket, passive vs. active income mix, and state tax treatment.

Foreign Tax Credit for Individuals — Practical Steps

1. Gather documentation: Foreign tax return, tax payment receipts, W-2 equivalent from foreign employer, or investment account statements showing foreign taxes withheld
2. Calculate foreign taxes paid by basket: Separate passive income foreign withholding (common on international mutual funds) from general income foreign taxes
3. Complete Form 1116: One form per basket; most individual taxpayers need at least a "passive" Form 1116 for foreign dividends and a "general" Form 1116 for foreign employment
4. Apply the limitation: The form calculates the § 904 limitation automatically
5. Track carryovers: Any excess credit (taxes paid above the limitation) can be carried back 1 year or forward 10 years on Form 1116 Part III

De minimis simplification: If your only foreign taxes were withheld from dividends and total $300 or less ($600 married filing jointly), you can claim the credit directly on Schedule 3 without completing Form 1116.

Foreign Tax Credit for Corporations

U.S. corporations claiming the FTC use Form 1118 and face more complex basket calculations, including the GILTI basket, foreign branch income basket, and applicable CFCs' deemed-paid credit calculations under § 960.

The TCJA largely replaced the prior indirect credit for dividends from foreign subsidiaries (the old § 902 deemed-paid credit) with the participation exemption (§ 245A) for dividends from 10%-owned foreign corporations. The deemed-paid credit still applies for GILTI and Subpart F inclusions under § 960.

How It Affects You

State Variations

Most states do not allow a credit for foreign taxes. Some states (like California) do provide a limited foreign tax credit for income taxes paid to foreign countries, but the rules differ substantially from federal rules. Check your specific state's treatment, particularly if you have significant foreign income.

Implementing Regulations

• 26 CFR 1.901-1 — Allowance of credit for foreign income taxes (basic eligibility for the foreign tax credit; nonresident alien rules)
• 26 CFR 1.901-2 — Income, war profits, or excess profits tax paid or accrued (the technical "creditable foreign tax" definition — predominant character test, requires foreign tax to be on net income)
• 26 CFR 1.901-2A — Dual capacity taxpayers (special rules for taxpayers whose foreign tax payments include both tax and royalty/economic benefit components)

Pending Legislation

The 2021 "Build Back Better" provisions would have tightened the GILTI rules and reduced the FTC basket flexibility for multinational corporations — those changes did not become law. The Inflation Reduction Act of 2022 made no changes to the core FTC rules. The global minimum tax framework (OECD Pillar Two, 15% minimum) may eventually require Congress to revise the FTC basket rules and GILTI provisions to coordinate with Qualified Domestic Minimum Top-Up Taxes that U.S. trading partners are implementing. As of 2026, the U.S. has not enacted domestic Pillar Two legislation.

Recent Developments

In 2022, Treasury finalized new regulations that tightened the definition of a "creditable foreign tax" — requiring that foreign taxes meet a "net gain" standard to qualify. This change retroactively denied FTC credit for certain taxes that had previously been treated as creditable, generating significant controversy and litigation. Several foreign tax regimes — including aspects of UK digital services taxes and certain withholding taxes — fell into a gray area under these 2022 regulations. Treasury subsequently modified some rules in 2023 in response to practitioner concerns, creating a complex transitional framework that continues to evolve.

• OECD Pillar Two global minimum tax and FTC interaction (2024-2026): The OECD's 15% global minimum tax (Pillar Two), now implemented in 140+ countries, creates new foreign tax credits questions for U.S. multinationals. "Qualifying domestic minimum top-up taxes" (QDMTTs) imposed by foreign countries to bring effective rates to 15% generally qualify as creditable under current Treasury guidance — preventing double taxation. But U.S. companies with effective rates above 15% in some countries still face complex FTC limitation calculations and potential minimum tax exposure under GILTI (Global Intangible Low-Tax Income). The OBBBA proposed GILTI rate changes that further complicate the Pillar Two/GILTI interaction.
• FTC limitation and high-tax kickout rules: Treasury's 2020 regulations under § 904 significantly changed how foreign tax credit limitations are calculated — particularly the high-tax exclusion from GILTI. Companies can elect to exclude income from GILTI calculations if the effective foreign tax rate exceeds 90% of the U.S. rate (18.9% at the current 21% corporate rate). The interaction of the high-tax kickout with Pillar Two QDMTTs requires country-by-country modeling that has significantly increased compliance costs for mid-size multinationals.
• OBBBA and GILTI changes: The OBBBA proposed reducing GILTI deductions and increasing the GILTI effective tax rate — a revenue-raising measure offset against the TCJA permanent extension cost. Higher GILTI rates improve competitiveness with Pillar Two but increase the FTC planning complexity for multinationals operating in low-tax jurisdictions. The GILTI and BEAT (Base Erosion and Anti-Abuse Tax) provisions were among the most technically contested aspects of the OBBBA tax title.
• Digital services taxes and trade retaliation: Multiple countries (France, UK, Italy, Spain, Canada) have enacted digital services taxes on large tech platforms' revenues from local users. The U.S. has threatened retaliatory tariffs if DST countries don't align with Pillar One (reallocating taxing rights to market countries) — creating a DST-tariff standoff. DSTs generally don't qualify as creditable foreign taxes under the net-gain standard because they're imposed on gross revenue, not net income. This means U.S. tech companies pay DSTs without FTC offset, doubling the effective burden.