
Massachusetts Decouples from OBBBA: What R&D Expensing, Section 179, and Bonus Depreciation Changes Mean for Your Business
Massachusetts rejected four major OBBBA federal tax breaks — immediate R&D expensing, 100% bonus depreciation on qualified production property, the $2.5M Section 179 limit, and the EBITDA-based interest cap — and set a September 10, 2026 deadline to file amended 2025 state returns without interest charges.










