A. 

1. Bonus Depreciation & Section 179

• 100% bonus depreciation restored for new or used qualifying assets placed in service from January 20, 2025, with the Senate version making this permanent, and bonus extended through 2029 under the House version

• Section 179 expensing limit increased to $2.5 M with a $4 M phase-out threshold starting in 2025 

🧪 2. R&D Expensing

• Immediate expensing of domestic R&E expenses reinstated from 2025–2029, with the Senate permanently adopting expensing and allowing small taxpayers to catch up on earlier years 

🏭 3. Qualified Production Property

• New provision allows 100% expensing on nonresidential buildings used for manufacturing, agriculture, chemicals, or refining, effective upon enactment wsgr.com+15alternatetaxsolutions.com+15whitefordlaw.com+15.

💼 4. Section 199A (QBI Deduction for Pass‑Throughs)

• The Qualified Business Income deduction is made permanent.

💵 5. Business Interest Limitation

• Section 163(j) returns to the EBITDA basis for calculating interest deductions from 2025–2029 (Senate makes this permanent) 

🌱 6. Clean-Energy & Green Credits

• Most clean-energy credits (solar, wind, EV credits) begin phase-out by end of 2025, with some extending to 2027 

🏗️ 7. Opportunity Zones & Small Businesses

• A new round of Opportunity Zones slated for 2027–2033, with enhanced benefits for rural investments

• Employee childcare & paid leave credits increased and extended 

📄 8. Reporting & Disclosures

• 1099 reporting threshold raised from $600 to $2,000, and Form 1099-K thresholds also adjusted to $20,000 or 200 transactions

🕒 9. Excess Business Losses

• Previously expiring TCJA limits on excess losses now made permanent, with carryforward of unused losses .