Subpart F and NCTI (Formerly GILTI) for U.S. Owners of Foreign Companies

Core Statutory Takeaways

• A foreign corporation generally becomes a CFC when U.S. shareholders collectively own more than 50% of its vote or value at any time during the relevant year.
• A U.S. shareholder generally means a U.S. person who owns at least 10% of the total voting power or total value of the foreign corporation, directly, indirectly or constructively, under the applicable ownership rules.
• Being a 10% U.S. shareholder does not by itself make a foreign corporation a CFC. Both the U.S.-shareholder test and the more-than-50% CFC ownership test matter.
• Subpart F can cause current U.S. income inclusions for certain categories of CFC income even when the foreign company makes no distribution.
• The former GILTI rules under section 951A were significantly changed for tax years beginning after 2025. The current regime uses the term Net CFC Tested Income (NCTI).
• The old description of NCTI/GILTI as business income above a 10% return on depreciable tangible assets is no longer an accurate description of the 2026 regime.
• Individuals can face materially different results depending on whether they make a section 962 election, including access to corporate-rate mechanics and section 250 treatment that is unavailable to an ordinary individual shareholder.
• Form 5471 is generally the principal annual information return for U.S. persons with specified ownership, control or transactions involving foreign corporations.
• A Form 5471 filing failure can produce a $10,000 penalty for each annual accounting period, plus continuation penalties after IRS notice, subject to the statutory limits.
• CFC rules are separate from FBAR, Form 8938, foreign trust reporting and foreign partnership reporting. One form does not automatically substitute for another.

Key Regulatory Facts

Controlled Foreign Corporation (CFC) Architecture: The 10% and 50% Thresholds

Understanding CFC taxation begins with distinguishing the shareholder-level test from the corporation-level test under IRC §§ 951(b) and 957(a).

• U.S. Shareholder Definition: Any U.S. citizen, resident alien, domestic corporation, partnership, or trust that owns 10% or more of total combined voting power OR 10% or more of total stock value.
• CFC Status Test: A foreign corporation is a CFC only if U.S. Shareholders (each owning ≥10%) collectively own MORE THAN 50% of total voting power or total value.
• Constructive Ownership (IRC § 958): Broad family and entity attribution rules apply. Stock owned by foreign siblings or spouses can be attributed, transforming minority stakes into reportable interests.
• The 10% Shareholder Trap: Owning 12% of an Indian company does NOT make it a CFC if other U.S. persons own 0%. However, if an unrelated U.S. investor owns 40%, the entity crosses 50% and becomes a CFC.

Subpart F Income: Phantom Inclusions on Passive and Mobile Income

Subpart F (IRC §§ 951–964) prevents deferral of U.S. tax on income that is easily shifted between jurisdictions.

• Current Pass-Through: U.S. Shareholders must include their pro rata share of Subpart F income on their personal Form 1040, regardless of whether dividends were paid.
• Foreign Personal Holding Company Income (FPHCI): Dividends, interest, royalties, annuities, and net gains from property producing passive income.
• Foreign Base Company Sales Income: Profits from buying goods from a related person and selling to anyone, or vice versa, where goods are produced and used outside the CFC's country of incorporation.
• Foreign Base Company Services Income: Compensation for technical, managerial, or engineering services performed for or on behalf of a related person outside the CFC's home country.
• High-Tax Exception: Subpart F income subject to an effective foreign tax rate greater than 90% of the maximum U.S. corporate rate (18.9% under current 21% rate) can be excluded by election.

Transition to Net CFC Tested Income (NCTI): Replacing Legacy GILTI Rules

The 2017 Tax Cuts and Jobs Act introduced GILTI (Global Intangible Low-Taxed Income) to tax active earnings. Significant legislative modifications enacted in 2025 modernized this framework for tax years beginning after 2025.

• Statutory Rebranding: Post-2025 statutory amendments under the One Big Beautiful Bill Act designate this regime Net CFC Tested Income (NCTI).
• IRS Form 8992 Update: The 2026 Form 8992 is officially titled 'Calculation of Net Controlled Foreign Corporation Tested Income (NCTI).'
• Retirement of 10% QBAI Formula: The historical description of GILTI as profits exceeding a 10% return on Qualified Business Asset Investment (tangible depreciable property) is no longer the general governing metric.
• Tested Income Base: Evaluates gross CFC income excluding Subpart F, effectively connected income (ECI), and high-taxed amounts, offset by allocable deductions.

Section 962 Election: Corporate Rate Modeling, Section 250, and Dividend Traps

Individual U.S. shareholders face top individual marginal tax rates (up to 37%) on Subpart F and NCTI inclusions unless an IRC § 962 election is made.

• Corporate Rate Mechanics: Allows an individual to calculate tax on CFC inclusions as if they were a domestic C-Corporation (taxed at the 21% corporate rate).
• Unlocking Section 250 (Form 8993): Section 962 electors can claim the Section 250 deduction (adjusted to 40% post-2025) against NCTI inclusions.
• Deemed-Paid Foreign Tax Credits: Unlocks indirect FTCs under IRC § 960, allowing foreign corporate taxes paid by the CFC to directly offset U.S. tax.
• The Distribution Trap: When the CFC subsequently distributes actual cash dividends from earnings taxed under § 962, the distribution is taxable as a dividend to the extent it exceeds the U.S. corporate tax previously paid.
• Multi-Year Modeling Required: Section 962 should never be treated as an automatic 'flat 21% rate' without modeling long-term cash repatriation goals.

Deemed-Paid Foreign Tax Credits (§ 960) and the New 90% Credit Percentage

Mitigating international double taxation requires navigating the complex interaction between foreign corporate taxes and U.S. inclusions.

• IRC § 960(a) Subpart F Credits: Domestic corporate shareholders and § 962 electors can claim deemed-paid credits for foreign taxes attributable to Subpart F income.
• IRC § 960(d) NCTI Credit Update: Under post-2025 statutory revisions, the deemed-paid foreign tax credit percentage for Section 951A inclusions was revised from 80% to 90%.
• 10% Disallowance Rule: The remaining 10% of foreign taxes attributable to NCTI is non-creditable and non-deductible in specified circumstances.
• Previously Taxed Earnings & Profits (PTEP): Amounts previously taxed under Subpart F or NCTI are tracked under IRC § 959 to ensure they are not taxed again when distributed as cash.

Form 5471 Compliance: Filing Categories, Schedules, and Filing Deadlines

Form 5471 (Information Return of U.S. Persons With Respect to Certain Foreign Corporations) is one of the most comprehensive disclosure returns in the Internal Revenue Code.

• Category 4 Filers: U.S. persons who control a foreign corporation (more than 50% voting power or value for at least 30 consecutive days during the annual accounting period). Requires full financial statements (Schedules C, F, G, H, I).
• Category 5 Filers: U.S. Shareholders who own stock in a CFC for an uninterrupted period of 30 days or more. Requires Schedules I-1 (NCTI), J (PTEP), and P (PTEP tracking).
• Category 2 & 3 Filers: U.S. officers/directors when a U.S. person acquires a 10%+ interest, or U.S. persons who acquire or dispose of 10%+ stock.
• Filing Deadlines: Attached to Form 1040/1120 and filed by the tax return due date (including valid extensions to October 15 via Form 4868/7004).
• Book-to-Tax Adjustments: Requires translating foreign accounting records (e.g. Indian GAAP, UK FRS) into U.S. GAAP and tax accounting rules in U.S. dollars.

Penalties, FTC Disallowance, and Statute of Limitations under IRC § 6501(c)(8)

The IRS enforces foreign corporate information reporting with mandatory civil fines and procedural penalties.

• Mandatory $10,000 Fine: Imposed under IRC § 6038(a) for each annual accounting period of each foreign corporation for failure to timely file Form 5471.
• Continuation Penalties: If unfiled 90 days after IRS notice, an additional $10,000 is assessed per 30-day period (capped at $50,000 max continuation fine, for a $60,000 total per entity per year).
• 10% Foreign Tax Credit Reduction: Available foreign tax credits under §§ 901 and 960 are immediately reduced by 10%, plus an additional 5% for every 3 months of continuation.
• Statute of Limitations Tolling (IRC § 6501(c)(8)): The assessment statute of limitations remains open indefinitely for tax issues related to the foreign entity until Form 5471 is filed.

Indian and Expat Founders: Private Limited Companies, LLPs, and Pre-Immigration Planning

Entrepreneurs moving to the U.S. on H-1B, L-1, or green cards frequently trigger unexpected CFC obligations.

• Indian Private Limited Companies: Standard Indian startup structures become CFCs the moment an Indian founder becomes a U.S. tax resident under the Substantial Presence Test.
• Indian LLP Classification: Indian LLPs are classified by default as foreign partnerships (Form 8865) or corporations (Form 5471) depending on entity classification check-the-box elections under Treas. Reg. § 301.7701-3.
• Indian Corporate Tax Credits: Indian corporate taxes (typically 22%–25% plus surcharge) can offset U.S. tax under § 962 elections, but must be tracked carefully against functional currency exchange rates.
• Pre-Immigration Restructuring: Founders should review capitalization tables, consider Section 338 elections, or distribute historical earnings before acquiring U.S. tax residency.

Pre-Filing Verification Checklist

• ✓Determine whether the foreign entity is legally and for U.S. tax purposes a corporation, partnership or disregarded entity.
• ✓Calculate direct, indirect and constructive U.S. ownership rather than relying only on the legal shareholder register.
• ✓Determine whether U.S. shareholders collectively exceed the more-than-50% CFC threshold.
• ✓Identify the applicable Form 5471 filing category and schedules.
• ✓Separate Subpart F income from tested income and other CFC items.
• ✓Calculate the current section 951A/NCTI inclusion using the rules applicable to the relevant tax year.
• ✓Do not use the pre-2026 10%-of-QBAI description as the current NCTI calculation.
• ✓Review foreign corporate taxes for possible foreign-tax-credit treatment and category limitations.
• ✓Track earnings and profits and PTEP from year to year.
• ✓Model whether a section 962 election produces a better overall result for the individual.
• ✓Separately test Form 8938, FBAR, Form 8858 and Form 8865 where applicable.
• ✓Maintain foreign corporate financial statements, trial balances, tax returns, ownership records and currency-conversion documentation.
• ✓Review the foreign corporation before a U.S. residency or citizenship transition rather than waiting for the first Form 5471 deadline.

Common Compliance Scenarios & Determinations

Pre-Filing Compliance Checklist

• ✓Determine whether the foreign entity is legally and for U.S. tax purposes a corporation, partnership or disregarded entity.
• ✓Calculate direct, indirect and constructive U.S. ownership rather than relying only on the legal shareholder register.
• ✓Determine whether U.S. shareholders collectively exceed the more-than-50% CFC threshold.
• ✓Identify the applicable Form 5471 filing category and schedules.
• ✓Separate Subpart F income from tested income and other CFC items.
• ✓Calculate the current section 951A/NCTI inclusion using the rules applicable to the relevant tax year.
• ✓Do not use the pre-2026 10%-of-QBAI description as the current NCTI calculation.
• ✓Review foreign corporate taxes for possible foreign-tax-credit treatment and category limitations.
• ✓Track earnings and profits and PTEP from year to year.
• ✓Model whether a section 962 election produces a better overall result for the individual.
• ✓Separately test Form 8938, FBAR, Form 8858 and Form 8865 where applicable.
• ✓Maintain foreign corporate financial statements, trial balances, tax returns, ownership records and currency-conversion documentation.
• ✓Review the foreign corporation before a U.S. residency or citizenship transition rather than waiting for the first Form 5471 deadline.

Practical Compliance & Real-World Scenarios

Frequently Asked Compliance Questions

Primary Regulatory Authorities & Precedents