OBBBA fundamentally restructured the TCJA's anti-deferral regime for controlled foreign corporations, effective for tax years beginning after December 31, 2025. The Global Intangible Low-Taxed Income (GILTI) regime under §951A was renamed "Net CFC Tested Income" (NCTI) - reflecting that the regime no longer purports to target intangible returns. Four core mechanical changes: (1) the §250 deduction reduced from 50% to 40% for NCTI (yielding a 12.6% effective corporate rate vs the prior 10.5%); (2) the 10% Qualified Business Asset Investment "deemed tangible income return" carve-out was REPEALED entirely - broadening the taxable base to all net CFC tested income; (3) the §960(d) foreign tax credit "haircut" reduced from 20% to 10% (allowing 90% of foreign taxes deemed paid to be creditable, up from 80%); and (4) the foreign cross-over rate (the foreign tax rate at which residual US tax is zero) rose from approximately 13.125% to approximately 14%. OBBBA also reinstated §958(b)(4) downward attribution limitation, added new §951B for "foreign controlled US shareholder" rules, made §954(c)(6) CFC look-through rules permanent, set BEAT permanently at 10.5%, and renamed FDII to "Foreign-Derived Deduction Eligible Income" (FDDEI) with the §250 deduction reduced from 37.5% to 33.34%. These changes apply for tax years beginning after December 31, 2025.
(1) Name change: GILTI → NCTI (Net CFC Tested Income). Regime under §951A.
(2) §250 deduction reduced: 50% → 40% for NCTI. Corporate effective rate: 21% × (1 - 40%) = 12.6%. Pre-OBBBA was 21% × (1 - 50%) = 10.5%.
(3) QBAI / 10% Deemed Tangible Income Return REPEALED: The 10% return on tangible foreign business assets that was excluded from GILTI is gone. All tested income now potentially taxed.
(4) FTC haircut reduced: §960(d) deemed-paid foreign tax credit was 80% (20% haircut). Now 90% (10% haircut). More foreign tax creditable.
Cross-over foreign rate: Foreign effective tax rate of approximately 14% (up from 13.125%) eliminates residual US tax on NCTI for corporations.
Effective: Tax years beginning after December 31, 2025.
| Requirement | Detail |
|---|---|
| Controlled Foreign Corporation (CFC) | Foreign corporation where US shareholders collectively own more than 50% of voting power OR value |
| US Shareholder definition | US person owning at least 10% of voting power OR value |
| Form 5471 filing requirement | Same 10% threshold triggers Form 5471 - NCTI computation interlinks with Form 5471 Schedule I-1 |
| Pro rata share rule (modified by OBBBA) | Now: US shareholder includes pro rata share if owned CFC stock at ANY TIME during taxable year (prior: only if owned on last day of CFC tax year) |
| Downward attribution under §958(b)(4) | OBBBA REINSTATED §958(b)(4) - foreign corp stock NOT attributed downward to US subsidiary. Reverses TCJA repeal that had expanded CFC scope. |
| New §951B - Foreign Controlled US Shareholder (FCUS) | Added by OBBBA to capture certain foreign-controlled US persons with attributed CFC stock. Threshold: more than 50% ownership attribution (raised from prior 10%). |
| Component | Pre-OBBBA (GILTI 2018-2025) | Post-OBBBA (NCTI 2026+) |
|---|---|---|
| Starting point | Net CFC Tested Income | Net CFC Tested Income |
| Less: Deemed Tangible Income Return (DTIR) | 10% × Qualified Business Asset Investment (QBAI) MINUS interest expense | REPEALED - no DTIR subtraction |
| Equals: GILTI / NCTI inclusion | Net amount after DTIR | Full net CFC tested income |
| §250 deduction | 50% (corporate or §962 individual) | 40% |
| Tentative tax (corporate rate) | 21% × (1 - 50%) = 10.5% | 21% × (1 - 40%) = 12.6% |
| §960(d) deemed-paid FTC haircut | 20% haircut (80% creditable) | 10% haircut (90% creditable) |
| Foreign tax cross-over rate | ~13.125% | ~14% |
The cross-over rate is the foreign effective tax rate at which residual US tax on NCTI equals zero for a US corporate shareholder. Algebra:
| Foreign tax rate × 0.90 (after 10% haircut) ≥ 12.6% (US effective rate on NCTI) |
| Foreign tax rate ≥ 12.6% / 0.90 = 14.0% |
| CFCs paying foreign tax at approximately 14%+ effectively shelter residual US tax through deemed-paid FTC |
| Pre-OBBBA cross-over: 10.5% / 0.80 = 13.125% |
Under the TCJA, GILTI excluded a "deemed tangible income return" equal to 10% of the CFC's QBAI (adjusted basis in specified tangible property used in the CFC's business). The economic rationale: GILTI was designed to target "intangible" returns above a normal 10% return on tangible capital. OBBBA eliminates the entire DTIR carve-out for NCTI.
| Affected Industry | Pre-OBBBA Benefit | Post-OBBBA Impact |
|---|---|---|
| Manufacturing CFCs with high tangible asset base | 10% × QBAI excluded from GILTI - large carve-out | Full tested income subject to NCTI - significant base expansion |
| Hotel/real estate CFCs | Large QBAI excluded from GILTI | Full operating income now NCTI-subject |
| Pure service CFCs / IP-holding CFCs (no tangible assets) | Little QBAI benefit | Minimal impact - similar exposure |
| Israeli/Irish manufacturing subsidiaries | Significant QBAI | Increased NCTI exposure |
| Tested losses | Could offset tested income | Same - tested loss offset preserved |
| Income Type | Pre-OBBBA | Post-OBBBA |
|---|---|---|
| NCTI (formerly GILTI) §250 deduction | 50% (scheduled to drop to 37.5% in 2026) | 40% - permanent |
| FDDEI (formerly FDII) §250 deduction | 37.5% (scheduled to drop to 21.875% in 2026) | 33.34% - permanent |
| Eligible claimant for NCTI deduction | US C-corporations directly; individuals via §962 election | Same |
| Taxable income limitation | §250(a)(2) - aggregate deduction cannot exceed taxable income; reduced ratably if income insufficient | Same |
| S-corp / partnership shareholders | Not eligible unless individual makes §962 election | Same |
Individual US shareholders default to ordinary income rates (up to 37%) on GILTI/NCTI inclusions. Section 962 election allows individuals to be taxed at the corporate level - claiming the §250 deduction and indirect FTCs.
| §962 Election Aspect | Post-OBBBA Treatment |
|---|---|
| Effective US rate on NCTI | 12.6% (21% × 60%) vs up to 37% without election |
| §250 deduction | 40% - available with §962 election |
| Indirect FTC under §960(d) | 90% creditable - available with §962 election |
| State tax | State conformity to §962 varies; some states do not respect election |
| Distribution timing | When earnings later distributed as dividends, second layer of US tax at qualified dividend rates (15%/20%) |
| QBI deduction interaction | NCTI is not qualified business income for §199A |
Facts: US individual owns 100% of German GmbH. GmbH earns €1,000,000 in 2026, pays €260,000 German corporate tax (26% rate), has €100,000 of tangible assets.
Step 1 - Net CFC Tested Income: €740,000 net (after foreign tax). Converted at avg rate: roughly $800,000 USD.
Step 2 - DTIR adjustment: $0 (repealed under OBBBA for 2026). Full $800,000 is NCTI.
Step 3 - With §962 election: $800,000 × (1 - 40%) = $480,000 taxable income. Tentative tax = $480,000 × 21% = $100,800.
Step 4 - Deemed-paid FTC: $260,000 × 90% = $234,000 available FTC (after 10% haircut). FTC limited to tentative tax. FTC = $100,800. Net US tax = $0.
Outcome: 26% German rate exceeds the 14% cross-over. Full FTC shelters US NCTI tax. Without §962 (taxed at individual rates without §250 deduction), $800,000 at 37% = $296,000 federal tax with no §250 deduction and FTC mechanics that differ.
OBBBA renamed Foreign-Derived Intangible Income (FDII) as "Foreign-Derived Deduction Eligible Income" (FDDEI). FDDEI provides reduced US tax for US corporations on export income.
| FDDEI Component | Post-OBBBA |
|---|---|
| §250 deduction for FDDEI | 33.34% (down from TCJA 37.5%; was scheduled to drop to 21.875% under TCJA sunset) |
| Effective corporate rate on FDDEI | 21% × (1 - 33.34%) ≈ 14% (was 13.125% under TCJA full deduction) |
| QBAI elimination | Applies to FDDEI too - eliminates 10% deemed return on tangible assets |
| Eligible income | US corporation export income from goods/services to foreign customers |
| Substantial activity requirement | Preserved - requires US-based activities producing the export |
The Base Erosion and Anti-Abuse Tax (BEAT) under §59A was scheduled to increase to 12.5% under TCJA. OBBBA set the BEAT rate permanently at 10.5% beginning 2026 - slightly above the 10% pre-OBBBA rate but below the scheduled 12.5%.
| BEAT Aspect | Detail |
|---|---|
| BEAT rate | 10.5% permanent (2026+) |
| Applicable taxpayer threshold | Average annual gross receipts $500M+ over prior 3 years; base erosion percentage ≥ 3% |
| BEAT base | Modified taxable income adding back base erosion payments to foreign related parties |
| Comparison to regular tax | BEAT applies if 10.5% of modified taxable income exceeds regular tax (less credits) |
| §954(c)(6) Look-Through | Effect |
|---|---|
| Pre-OBBBA | Temporary rule renewed multiple times - prevented certain dividends/interest/rents/royalties between related CFCs from being Subpart F income |
| OBBBA | PERMANENT - eliminates uncertainty of periodic renewal |
| Benefit | Allows multinational groups to move capital between related CFCs without current US tax on intra-group passive payments |
OBBBA reinstates §958(b)(4) downward attribution limitation (foreign parent's stock NOT attributed to US subsidiary). This narrows the scope of CFCs. To prevent abuse, OBBBA adds new §951B creating "Foreign Controlled US Shareholder" (FCUS) status with a 50% threshold (rather than 10%).
| §951B FCUS Rule | Detail |
|---|---|
| Trigger | US person attributed more than 50% ownership of foreign corporation (vs prior 10% under TCJA-repealed §958(b)(4)) |
| Effect | Foreign corporation treated as CFC for the FCUS; Subpart F and NCTI apply |
| Effective | Same as OBBBA NCTI changes - tax years beginning after 12/31/2025 |
| Practitioner concern | M&A due diligence must analyze whether target's foreign operations create §951B FCUS exposure |
Subpart F income (under §951(a)) and NCTI (under §951A) are SEQUENTIAL, not overlapping. Income that is Subpart F is EXCLUDED from NCTI to prevent double inclusion.
| Income Type | Treatment |
|---|---|
| Subpart F income (foreign personal holding company income, foreign base company sales/services, etc.) | Included in US shareholder's income under §951(a); EXCLUDED from NCTI base |
| High-tax exception income | Excluded from Subpart F if foreign tax exceeds 90% of US rate; can elect to exclude from NCTI as well |
| Effectively connected income (ECI) to US trade or business | Excluded from NCTI |
| Related party dividends | Excluded from NCTI |
| Remaining tested income | NCTI base |
OBBBA added a new sourcing rule allowing up to 50% of income from US-produced inventory sold abroad to be treated as foreign-source - potentially relieving FTC limitation pressure on multinational exporters.
| Outbound Remittance Excise Tax | Detail |
|---|---|
| Rate | 1% excise tax |
| Applies to | Cash and similar physical instrument transfers from US to foreign jurisdictions |
| Excludes | Transfers funded from US financial institution accounts or US-issued debit/credit cards |
| Remittance providers | Required to collect and remit quarterly; secondarily liable if not collected at transfer time |
| Sender citizenship | Applies regardless of citizenship or immigration status |
| State Position | NCTI Treatment |
|---|---|
| Rolling federal conformity (e.g., Texas, Illinois water's edge) | Generally conform to NCTI base; verify post-OBBBA |
| Static conformity | Depends on whether state updated to post-OBBBA Code |
| Decoupled (California, NY for certain provisions) | May not conform to §250 deduction; effective state rate may exceed federal 12.6% |
| States that decouple from §250 deduction | Tax full GILTI/NCTI inclusion at state corporate rate without 40% deduction |
| Worldwide combined reporting states (Alaska, Montana, NH) | Different mechanics - GILTI/NCTI may be subsumed in combined report |
The most common error in 2026 NCTI computations: continuing to subtract 10% of QBAI as DTIR. The carve-out is REPEALED for 2026. All tested income flows to NCTI without the tangible asset deduction.
§960(d) deemed-paid FTC is now 90% (was 80%). Practitioners using legacy GILTI workpapers must update FTC haircut to 10%. The change applies to NCTI inclusions in 2026+ AND to previously-taxed earnings distributed after June 28, 2025.
OBBBA modified §951 pro rata share rules to require inclusion if US shareholder owned stock at ANY TIME during the CFC's tax year (vs prior law requiring last-day ownership). M&A transactions, stock transfers, and partial dispositions all create new inclusion timing issues.
Even after §958(b)(4) reinstatement narrows downward attribution, the new §951B can capture foreign-controlled US shareholders with more than 50% attribution. Practitioners must analyze attribution rules carefully for foreign-parented US-affiliated groups.
§250 deduction is available to C-corporations and individuals making §962 election - NOT to S-corp or partnership shareholders without election. Pass-through CFC owners must affirmatively elect §962 to claim the 40% deduction.
The §250 deduction (combined NCTI 40% + FDDEI 33.34%) is limited to taxable income. If income is insufficient, the deduction is reduced ratably. Practitioners modeling NCTI in loss years must apply the limitation.
States vary on §250 deduction conformity. California historically did not conform; effective California rate on GILTI/NCTI may approach 8.84% on full inclusion without the 40% federal-style deduction. State tax position dramatically affects total effective rate.
FDDEI requires US-based substantial activities producing the export income. Mere paper routing through US entity does not qualify. Practitioners should document substance.
Subpart F inclusions REDUCE NCTI base. High-tax exception elections, related party dividend exclusions, and ECI exclusions all interact with NCTI computation. Computation order matters.
§954(c)(6) was renewed periodically before OBBBA; now permanent. Intra-group dividends, interest, rents, royalties between related CFCs continue to escape Subpart F characterization without legislative uncertainty.
Primary authority: IRC §951A (Net CFC Tested Income, formerly Global Intangible Low-Taxed Income; renamed by OBBBA effective tax years beginning after 12/31/2025). §951A(b) (NCTI definition - aggregate net CFC tested income; OBBBA repealed the deemed tangible income return / QBAI 10% subtraction). §951A(c) (tested income/loss definition). §951A(d) (qualified business asset investment - definition retained but no longer subtracted). §250 (deduction for foreign-derived deduction eligible income and net CFC tested income). §250(a)(1)(A) (FDDEI deduction - 33.34% under OBBBA for tax years beginning after 12/31/2025; was 37.5%). §250(a)(1)(B) (NCTI deduction - 40% under OBBBA; was 50%). §250(a)(2) (taxable income limitation on combined §250 deductions). §960 (deemed-paid foreign tax credit). §960(d) (deemed-paid FTC for NCTI - 10% haircut / 90% creditable under OBBBA; was 20% haircut / 80%). §962 (election by individual shareholders of CFCs to be taxed at corporate rates with §250 deduction). §951 (Subpart F inclusions). §951(a) (Subpart F pro rata share rules - modified by OBBBA to include if ownership at any time during CFC tax year vs prior law requiring last-day ownership). §951B (NEW - Foreign Controlled US Shareholder rules; more-than-50% attribution threshold). §958 (constructive ownership). §958(b)(4) (REINSTATED by OBBBA - foreign corporation stock not attributed downward to US subsidiary; reverses TCJA repeal). §954(c)(6) (CFC look-through rule for related-party passive payments - made PERMANENT by OBBBA). §954(b)(4) (Subpart F high-tax exception). §59A (Base Erosion and Anti-Abuse Tax - BEAT; rate set at 10.5% permanent under OBBBA). §163(j) (business interest limitation - EBITDA ATI permanent under OBBBA). §199A (QBI deduction - NCTI is NOT qualified business income). §904 (FTC limitation). §863 (sourcing - OBBBA new rule: up to 50% of income from US-produced inventory sold abroad treated as foreign-source). One Big Beautiful Bill Act, P.L. 119-21, signed July 4, 2025. OBBBA §70322 (NCTI mechanics changes; §250 deduction reduction). OBBBA §70323 (FDDEI rebrand and §250 deduction reduction). OBBBA international provisions §70321-§70328 (CFC look-through permanence, §958(b)(4) reinstatement, §951B FCUS, BEAT rate, FTC haircut, sourcing rule, 1% outbound remittance excise tax). Effective tax years beginning after December 31, 2025 generally. IRS Notice and proposed regulations expected throughout 2026.