What Makes CFC Income Different?
IRC §§951–965, as expanded by the Tax Cuts and Jobs Act (“TCJA”), establish two primary anti-deferral regimes for U.S. shareholders of controlled foreign corporations (“CFCs”): Subpart F income and global intangible low-taxed income (“GILTI”) under IRC §951A.
A key feature of the TCJA was the introduction of a 100% dividends received deduction (“DRD”) for certain foreign-source dividends received by U.S. corporate shareholders. While this participation exemption system reduces double taxation, it also creates an incentive to shift profits to low- or no-tax jurisdictions. To counterbalance that incentive, Congress retained and expanded the existing Subpart F regime and introduced the GILTI (now NCTI) rules.
Also, as part of the transition to this system, IRC §965 imposed a one-time inclusion of previously deferred foreign earnings, ensuring that accumulated offshore profits were subject to U.S. tax before the new participation exemption and ongoing anti-deferral regimes took effect.
Subpart F targets specific categories of highly mobile or passive income (such as interest, dividends, and certain related-party sales and services income) and requires current inclusion in U.S. income, regardless of whether the earnings are distributed.
GILTI/NCTI, by contrast, operates as a broader residual regime. Instead of identifying particular types of income, it captures most remaining CFC earnings that are not already taxed under Subpart F. The GILTI provisions approximate intangible income by allowing a deemed 10% return on the CFC’s tangible depreciable assets (QBAI). Any income in excess of that “routine return” is treated as excess profit and is subject to current U.S. taxation through the GILTI inclusion.
Together, Subpart F and GILTI function as complementary rules to limit deferral and reduce incentives for shifting income offshore, ensuring that certain categories of foreign earnings are subject to current U.S. tax even in the absence of distributions.
Recent legislative changes (OBBA) have further strengthened this framework by broadening the GILTI base and increasing the effective U.S. tax burden on foreign earnings, reinforcing the policy objective that income earned through CFCs should be subject to a minimum level of current taxation.
Together, Subpart F and GILTI function as complementary regimes to limit deferral and reduce incentives for shifting income offshore, ensuring that a wide range of foreign earnings is subject to current U.S. tax even in the absence of distributions.
Determining whether a foreign corporation is a Controlled Foreign Corporation (CFC) can be confusing. Below is a simple visual representation of the concept.
Each numbered circle (1–10) represents a shareholder, and the percentage above each circle represents that shareholder’s ownership interest in the foreign corporation:
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In this example, each shareholder owns 10% of the company. Because they meet the 10% U.S. shareholder threshold and collectively own more than 50% of the corporation, the entity meets the definition of a Controlled Foreign Corporation (CFC).
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In this example, the ownership is spread among shareholders who each own less than 10%. Because a U.S. shareholder is defined as a U.S. person who owns 10% or more of the vote or value of the corporation, none of these shareholders meet the definition of a U.S. shareholder. As a result, the company is simply treated as a foreign corporation, not a CFC.
1.4.2 NCTI
GILTI / NCTI
From a practical standpoint, if your foreign company is operating an active business—providing services, selling goods, or earning operating income—the U.S. will still require you to pick up a portion of those profits annually, even if no distributions are made. This is what often surprises taxpayers: you can owe U.S. tax without receiving any cash.
The calculation begins with the CFC’s net income (adjusted to U.S. tax principles), excludes items already taxed (such as Subpart F income or effectively connected income), and treats the remainder as “tested income.” That amount is then included in the U.S. shareholder’s taxable income as GILTI/NCTI. Conceptually, the rule targets what the IRS views as excess or mobile income that could otherwise be parked offshore.
OBBA made some changes to the GILTI/NCTI rules:
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Elimination of the QBAI exemption (DTIR), effectively broadening the GILTI base by removing the deemed 10% return on tangible assets.
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Adjustment to the Section 250 deduction (generally reduced to 40%), increasing the effective U.S. tax rate on GILTI.
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Refinements to the foreign tax credit regime, including continued limitations on creditability (e.g., haircut rules), which can result in residual U.S. tax even in higher-tax jurisdictions.
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Greater alignment with global minimum tax concepts, increasing the likelihood that foreign earnings are subject to a minimum level of taxation either abroad or in the U.S.
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Section 962 Election
Practical Use
Section 962 is a key planning tool specifically for individual U.S. shareholders. By making this election, an individual is allowed to be taxed as if they were a U.S. corporation for GILTI/NCTI purposes, allowing access to the lower corporate rate (~10.5%) and indirect foreign tax credits.
This can significantly reduce or eliminate immediate U.S. tax burdens. However, when the CFC later distributes earnings, they may be taxed again at the individual level, making Section 962 a timing and rate optimization strategy rather than a full exemption.
Foreign Tax Credits
Who Can Use Them
A key difference in how burdensome NCTI is depends on who owns the CFC. U.S. corporations benefit from a favorable regime, allowed a deduction that reduces the effective tax rate (currently ~10.5%) and can claim indirect foreign tax credits for taxes paid by the CFC.
U.S. individuals do not automatically receive these benefits. Without planning, they are taxed at ordinary income rates (up to 37%) and generally lack access to indirect foreign tax credits on GILTI/NCTI income, making the regime significantly harsher for individual owners.
High-Tax Exemption
At the end of the analysis, there is an important relief provision: the high-tax exception. If the CFC's income is already subject to a sufficiently high foreign tax rate (generally above approximately 18.9%), a taxpayer may elect to exclude that income from NCTI altogether.
In practice, this means businesses operating in higher-tax jurisdictions can often avoid the complexity and additional U.S. tax associated with GILTI/NCTI, aligning the outcome more closely with traditional territorial taxation.
Residual U.S. tax on NCTI Calculator
A basic calculator built to calculate the Residual U.S. tax on NCTI, for a domestic C corporation or an individual electing section 926.
Timing/law version: Tax year begins after December 31, 2025.
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Post‑2025 version of IRC §250 applies: 40% deduction for NCTI plus related §78 amount.[16][15]
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Post‑2025 version of IRC §960(d) applies: 90% of tested foreign income taxes are deemed paid (10% haircut), but §78 gross‑up uses 100% of those taxes.[9]
Other simplifying assumptions:
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No QBAI / DTIR adjustment (i.e., we are not reducing NCTI by any deemed tangible income return).
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No other deductions are allocated to the §951A category beyond §250 for purposes of the example.
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No §904 foreign tax credit limitation or expense allocation constraints are applied; the full $135 FTC is usable.
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No NOLs, no other special regimes (e.g., §962 elections, BEAT, CAMT) are considered.
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CFC Tax Compliance Workflow:
Step 1
Adjusted CFC Financials
- Adjust to U.S. tax principles
- Identify: Tested Income / Tested Loss
- Exclude: Subpart F, ECI, etc.
Alternative path for individuals with section 962 :
Step 2
Form 5471
- Report ownership, E&P, income details
- Schedule I-1 → Tested Income / Loss calculation
- Feeds into 8992 GILTI/NCTI computation
Step 3
Form 8992
- Aggregate all CFCs
- Net Tested Income – Tested Losses
- (Post-2025: no QBAI step)
- Output: NCTI / GILTI inclusion
Step 4
Form 8993
- Section 250 Deduction
- Apply 40% deduction (post-2025)
- Reduces taxable income
Step 5
Form 1118
- Foreign Tax Credit
- Compute deemed-paid FTC (90%)
- Apply: Section 78 gross-up
- FTC limitation & Expense allocation
- Output: Allowable FTC
Step 6
Form 1120
- U.S. Corporate Return
- Include: NCTI / GILTI income
- Section 78 gross-up
- Deduct: Section 250 deduction
- Apply: FTC from Form 1118