Changes Made by the Perfecting Amendment (Hatch #1618) (Note: All JCT estimates are relative to the committee-reported version of H.R. 1) Modifications Increased Pass-Through Deduction (Sec. 11011) This provision increased the deduction for qualified business income on individual returns from 17.4 percent to 23 percent of such income. JCT Estimate: Change would reduce revenues by an additional $114 billion over ten years. Extended Bonus Depreciation (Sec. 13204) This provision extends the bill’s five-year 100 percent expensing period for an additional four years, decreasing gradually over that time. JCT Estimate: This change would decrease revenues by $35 billion over ten years.