#r-and-d
Research and development tax credits, Section 174 and Section 174A expensing, and innovation accounting
OBBBA created Section 174A to permanently restore immediate expensing for domestic R&E after Dec 31, 2024. Learn the retroactive window that closed July 6, 2026, the new mandatory Form 6765 Section G for 2026, and how to tag domestic vs foreign costs by business component.