
FDII to FDDEI: How C Corporations Cut Federal Tax to 14% on Form 8993 in 2026
Under OBBBA, Section 250 renames FDII to FDDEI, sets the deduction at 33.34%, eliminates the QBAI offset, and removes interest and R&E allocation — producing an effective 14% federal rate on qualifying foreign-derived income for U.S. C corporations filing Form 8993 in 2026.










