What Happened: This is a two-pronged enhancement of depreciation benefits. First, the bill reverses the scheduled phase-down of bonus depreciation from the 2017 Tax Cuts and Jobs Act (TCJA). Instead of falling to 40% in 2025 and being eliminated thereafter, the rate for 100% first-year bonus depreciation was reinstated and made permanent for qualifying assets (like equipment, land improvements, and property components with a life of 20 years or less) acquired and placed in service after January 19, 2025. Second, the law introduced a powerful, new, and separate elective 100% depreciation allowance specifically for "Qualified Production Property" (QPP). This allows a developer or owner-user to immediately write off the entire cost of a newly constructed factory, refinery, or production facility in the United States.