Jun 11, 2026 §179D Deadline Rapidly Approaching: Begin Construction before June 30, 2026
The deadline to qualify for the §179D Energy Efficient Commercial Buildings Deduction is rapidly approaching. To preserve eligibility, construction must begin before June 30, 2026. The IRS provides flexible methods to establish a qualifying start date, including the Physical Work Test and the Five Percent Safe Harbor, but each requires careful documentation and ongoing progress. ...