From FDII to FDDEI: Navigating the New Deduction Rules

Introduction to the Foreign Derived Intangible Income Deduction

The Tax Cuts and Jobs Act of 2017 (TCJA) introduced the Foreign-Derived Intangible Income (FDII) deduction to encourage U.S. corporations to, primarily, develop and export goods manufactured in the United States. Under FDII (IRC §250), if such manufactured goods remained outside the U.S., the U.S. manufacturer was eligible, using a formula, to deduct a portion of the income derived from those exports.

FDII deduction parameters:

Deduction rate: 37.5% of FDII for tax year beginning before January 1, 2026

• FDII calculation
  • Deemed intangible income (Deduction-Eligible Income minus 10% of the corporation’s Qualified Business Asset Investment (QBAI) multiplied by the product of
  • Foreign Derived Deduction Eligible Income (qualified export receipts) over
  • Deduction Eligible Income (total domestic income less certain non-qualifying income)

The purpose of FDII was to incentivize U.S.-based development, retention, and use of intangible property in domestic manufacturing. By allowing companies to deduct 37.5% of the calculated FDII amount, businesses could achieve an effective tax rate of 13.125% on this “intangible-driven” income.

Key changes under the One Big Beautiful Bill (OBBB)

1. Redesignation

The OBBB renamed the deduction from foreign-derived intangible income (FDII) to Foreign-derived deduction-eligible income (FDDEI).

2. Elimination of the foreign-derived ratio multiplier and QBAI offset

• Pre-OBBBA FDII formula:

FDII deduction = 37.5% * (DEI – (10% * QBAI) * (FDDEI/DEI)

• Post-OBBBA FDDEI formula:

FDDEI equals the portion of DEI that qualifies as export receipts

3. Reduction of the deduction rate to 33.34%

Pre-OBBBA effective tax rate:

21% * (1 – 37.5%) = 13.125%

Post-OBBBA effective tax rate:

21% * (1 – 33.34%) = 13.999% (effectively, 14%)

4. Expansion of DEI exclusions from six to eight categories

Two new exclusions were added:

• Gain from sale or other disposition of:
  • Properties that generate intangible income
  • Any other property subject to depreciation, amortization, or depletion by the seller

5. Narrowing of expense allocations against FDDEI

While the OBBB decreases the deduction rate and narrows income eligibility, it also expands potential FDDEI amounts by removing certain expense allocations. Specifically, interest and R&E expenses no longer need to be allocated against FDDEI income—potentially increasing the benefit.

Tax Strategies to Plan Ahead

• Update internal calculation models to reflect the FDDEI terminology and broadened income definitions
• Revise planning projections to incorporate the updated permanent deductions rates beyond 2025
• Re-evaluate U.S based production and export activities or services to foreign markets to identify opportunities to maximize the FDDEI deduction

The shift from FDII to FDDEI under the “Big Beautiful Bill” streamlines U.S. tax incentives for domestic innovation and exports. As with any reform, new planning opportunities emerge—particularly for globally active businesses with U.S.-based operations.

If you have any questions or would like assistance navigating these changes, please don’t hesitate to reach out to our Global Business team.