GILTI / NCTI Mitigation (§951A)
"You own a foreign corp. Even if you never see a dividend, the IRS pretends you did. Here's how to keep the bite under 12.6% — or zero — after the 2025 OBBBA rewrite."
The 60-second pitch
If a US person owns more than 50% of a foreign corporation (a "controlled foreign corporation" — CFC), the TCJA-era GILTI regime (IRC §951A, enacted 2017) pulled that corporation's "low-taxed" foreign earnings into the US shareholder's return annually, whether or not a dividend was ever paid. You got phantom income on your 1040 / 1120 for your share of the CFC's profits, every year.
The original deal: GILTI included income, then the §250 deduction (50% for C corps) cut the rate from 21% to ~10.5%, and a deemed-paid foreign tax credit (with a 20% "haircut") finished the job. Hit ≥ 13.125% foreign tax rate and a high-tax election under §954(b)(4) → GILTI is excluded entirely.
The One Big Beautiful Bill Act (OBBBA) of July 4, 2025 rewrote the regime. GILTI is renamed Net CFC Tested Income (NCTI) for tax years beginning after December 31, 2025. Three structural changes:
- The §250 deduction drops from 50% to 40% → effective C-corp rate rises from 10.5% to ~12.6%.
- The FTC "haircut" drops from 20% to 10% → 90% of foreign taxes are now creditable (was 80%) — a meaningful give-back.
- QBAI is gone. The 10%-of-tangible-asset return that previously escaped GILTI is repealed. Capital-intensive offshore operations lose this exclusion.
The high-tax election survives in modified form; for tax years beginning after Dec 31, 2025, the threshold tracks the new ~12.6% effective rate (technically ≥ 90% of the highest US corp rate × NCTI). Plan accordingly — the post-OBBBA breakeven moved.
Real-world example
The setup. Northwind, a Delaware C-corp, owns 100% of Northwind Ireland Ltd, which licenses software to EU customers. 2026 (post-OBBBA) tested income at the Irish CFC: $10,000,000. Ireland's corporate tax (post-Pillar Two): 15% = $1.5M paid in Ireland. Northwind's CFO is debating: take the standard NCTI pickup, elect §954(b)(4) high-tax, or restructure.
Path A: Standard NCTI pickup (no high-tax election).
NCTI inclusion: $10,000,000 (QBAI exclusion repealed under OBBBA).
§250 deduction (40% post-OBBBA): –$4,000,000.
Net taxable in US: $6,000,000 × 21% = $1,260,000 pre-credit US tax.
Deemed-paid FTC (§960): 90% of $1.5M Irish tax = $1.35M creditable, capped at §904 limitation. Effective FTC available against NCTI basket ≈ $1.26M.
Net US tax owed on NCTI: ~$0 (Irish tax fully shields).
Path B: §954(b)(4) high-tax election.
Threshold (post-OBBBA, ~12.6% effective): foreign rate must be ≥ 90% of (highest US corp rate × NCTI methodology). Ireland's 15% clears.
Effect: $10M of Irish income is fully excluded from NCTI at the US shareholder.
Net US tax owed: $0. No FTC needed — there's no inclusion.
Which wins? Both paths produce ~$0 US tax this year — but Path B is cleaner: no §250 deduction churn, no FTC limitation worry, no expense-allocation complexity. Path A consumes foreign tax credits that could've offset other foreign income.
The gotcha (Path A only). If Irish operations had been heavy in tangible assets (factory, equipment), under pre-OBBBA rules QBAI would have excluded 10% × tangible basis from GILTI for free. That free pass is gone after Dec 31, 2025. Capital-intensive CFCs that relied on QBAI are now fully exposed.
The step-by-step checklist
- Identify every CFC in the structure. A foreign corp is a CFC if > 50% of vote or value is owned by "US shareholders" (each holding ≥ 10%). Constructive ownership rules (§958) sweep family + entity attribution.
- Map who the US shareholders are. Each US shareholder reports their pro-rata share of Subpart F and NCTI. File Form 5471 (Schedules I, I-1, P, Q, etc.).
- Compute tested income at the CFC. Gross income minus exclusions (Subpart F income, ECI, high-taxed income if elected) minus deductions properly allocable.
- Apply the post-OBBBA framework (TY beginning after Dec 31, 2025):
- No QBAI deduction (repealed).
- §250 deduction = 40% (was 50%).
- FTC haircut = 10% (was 20%); 90% of foreign tax is creditable on §960 deemed-paid basis.
- Expense allocation under §904 now excludes interest + R&E from foreign-source allocation (taxpayer-favorable).
- Run the high-tax election analysis annually. §954(b)(4) HTE — if the CFC's foreign effective rate exceeds ~12.6% (post-OBBBA threshold), elect to exclude that tested income from NCTI entirely. Election is made on a CFC-by-CFC, item-by-item basis (Reg §1.951A-2(c)(7)).
- Consider the §962 election for individuals. Individual US shareholders are normally hit with NCTI at ordinary individual rates (up to 37%) WITHOUT the §250 deduction or §960 credit — brutal. The §962 election lets an individual be taxed at corporate rates (21% with §250 deduction = ~12.6% effective, plus deemed-paid FTC). Trade-off: distributions of previously-taxed income are taxed again as dividends to the individual.
- Decide on entity restructuring. Hold CFCs through a US C-corp blocker rather than directly as an individual. Captures §250 deduction + §960 FTC natively without §962 election complexity.
- Track Previously Taxed Earnings & Profits (PTEP). Once NCTI is included, future distributions of those earnings are PTEP — not taxed again as dividends. Maintain PTEP pools by year and category (Schedule J / P of Form 5471).
- File Form 8992 for the NCTI computation, Schedule A by CFC.
- Coordinate with Pillar Two QDMTT & UTPR. Many CFC host countries now impose a 15% Qualified Domestic Minimum Top-up Tax (QDMTT). Those payments are creditable foreign taxes — but layered with NCTI they can over-tax. Run modeling.
- Watch the Subpart F vs. NCTI ordering. Subpart F (passive income, foreign personal holding company income, foreign base company sales/services income) is picked up first; NCTI is the residual tested income.
- Document everything on Form 5471. 12+ schedules. The form is one of the most penalty-rich in the Code — $10K per CFC per year for failures, with attribution sweeping in spouses and family.
IRS code & authority
- IRC §951A Global Intangible Low-Taxed Income (GILTI), renamed Net CFC Tested Income (NCTI) for tax years beginning after Dec 31, 2025 under OBBBA. Annual inclusion at the US shareholder level.
- IRC §250 Deduction for FDII and NCTI/GILTI. Post-OBBBA: 40% on NCTI (was 50%) for tax years beginning after Dec 31, 2025 — effective 12.6% corporate rate.
- IRC §954(b)(4) High-tax exception — elect to exclude tested income subject to a foreign effective rate ≥ ~90% of the highest US corporate rate (post-OBBBA threshold ≈ 12.6%).
- Reg §1.951A-2(c)(7) Final regs on the GILTI/NCTI high-tax exclusion. Elected on a tested-unit basis, all-or-nothing across affiliated CFCs in a group.
- IRC §960 Deemed-paid foreign tax credit for Subpart F & NCTI/GILTI inclusions. Post-OBBBA: haircut reduced from 20% to 10% — 90% of foreign tax now creditable.
- IRC §962 Individual election to be taxed at corporate rates on CFC inclusions, getting the §250 deduction + §960 FTC. Excellent escape valve for individual CFC owners.
- IRC §958 Constructive ownership rules — attribution from family, entities, and partners. Critical for identifying CFCs and US shareholders.
- IRC §959 Previously Taxed Earnings and Profits (PTEP) — prevents double taxation when previously included earnings are later distributed.
- IRC §245A Participation exemption: 100% DRD on foreign-source portion of dividends from 10%-owned foreign corps — for C corp shareholders only.
- Form 5471 Information return for US persons with respect to certain foreign corporations. 12+ schedules; penalty $10K/CFC/year for non-filing or failure-to-furnish.
- Form 8992 US shareholder calculation of NCTI/GILTI; Schedule A breaks it out by CFC.
- Notice 2025-75 Transition rule guidance for §951(a)(2)(B) reflecting the OBBBA changes.
Audit risk flags
- Form 5471 non-filing. The #1 international-tax penalty exposure. $10K per CFC per year, automatic, regardless of whether tax was owed. Defense: File Form 5471 with full schedules for every CFC, every year. Use the streamlined procedures if you missed prior years.
- High-tax election miscalculation. The effective foreign rate test (post-OBBBA ≈ 12.6%) is computed using US tax accounting principles — not the CFC's local effective rate. Common error: using the GAAP / local-stat rate. Defense: Reconcile tested income to US tax principles before computing the rate.
- Wrong §962 election timing. Election must be made each year on the return. Late or missed elections are usually fatal — limited 9100 relief. Defense: Treat §962 as a recurring decision point with your tax professional every spring.
- Individuals holding CFCs directly. Brutal post-OBBBA: no §250 without §962, no §960 deemed-paid credit without §962, NCTI at full 37% individual rate. Defense: Hold through a US C-corp blocker or make §962 election.
- QBAI cliff for capital-intensive CFCs. The OBBBA repeal of QBAI is a stealth tax hike on real-estate-rich and equipment-heavy CFC structures that previously relied on the 10%-of-tangible exclusion. Defense: Re-model post-2025 NCTI assuming full inclusion of what QBAI used to shield; consider high-tax election or restructuring.
- Pillar Two interaction. The OECD 15% global minimum tax (QDMTT + IIR + UTPR) layered with NCTI can produce double taxation absent careful FTC planning. Defense: Coordinate with a specialist; the credits do not always line up cleanly.
- Currency translation errors. Tested income translated at the average annual exchange rate; foreign tax translated at the date of accrual / payment. Mismatches inflate or deflate the inclusion. Defense: Use OANDA / Federal Reserve annual averages consistently; document the source.
- "Check-the-box" eliminated unexpectedly. Electing to treat the CFC as a disregarded entity or partnership (Form 8832) can collapse the GILTI/NCTI issue — but triggers a §367 outbound recognition event. Defense: Model the trade-off with a transactional tax specialist; don't elect on a whim.
When NOT to do this
- Your CFC is in a high-tax jurisdiction already (Germany, Japan, France). The high-tax election runs on autopilot — no further mitigation needed. Just file 5471 + 8992 cleanly.
- You're a passive minority investor at < 10% ownership. You're not a US shareholder for §951(b) purposes; no NCTI inclusion. (You may still face PFIC issues — different ballpark.)
- The CFC has tax losses. Tested losses reduce NCTI to zero or below at the shareholder level. Mitigation isn't needed — just file 5471.
- The structure is a foreign branch, not a sub. Branches are taxed directly under §250 (FDII) and the foreign branch FTC basket — different regime. Restructure first if the optimal answer is sub-form.
- You can collapse the foreign sub into a US LLC via check-the-box. For very small CFCs the compliance burden of Form 5471 may exceed any tax benefit. Eliminating the foreign entity is sometimes the right answer.
- You're an individual with a tiny CFC. §962 + §250 + §960 + PTEP tracking is expensive to comply with. If the CFC nets < $50K/yr, eliminating the structure may save more than the optimization.
Keep your CFC compliance audit-clean
PilePilot's Books agent tracks PTEP pools, builds the Form 5471 attachment data, and surfaces high-tax-election opportunities every year — purpose-built for tax pros serving founders with foreign subs.
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Disclaimer. This page is educational and not tax advice. NCTI / GILTI is one of the most complex parts of the US international tax code, and the OBBBA 2025 changes (effective for tax years beginning after Dec 31, 2025) materially altered the calculus. Engage an international tax specialist; do not run this on consumer tax software alone.