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What is the 179D Tax Deduction? Energy-Efficient Eligibility

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Section 179D enables commercial building owners to claim a tax deduction of up to $5 per square foot for improving the energy efficiency of new and existing buildings. To qualify, a building must meet or exceed key energy reduction requirements and ASHRAE standards.

179D Tax Deduction offers substantial benefits

For example, if the qualified building is 100,000 square feet, that could mean up to a $500,000 tax deduction for the work completed.

Who qualifies and what improvements are eligible?

Taxpayers and/or building owners who invest in new construction or in improvements to existing buildings are eligible. Primary designers – including architects, engineers, green building consultants, and contractors – of qualifying energy efficiency measures in buildings may also claim the deduction if they receive an allocation from their work completed on government agency properties, non-profits and Native American tribes.

Improvements must reduce energy use by making investments in any of the following categories:

  • Building envelope
  • HVAC
  • Interior lighting systems

There are different ways to pursue a deduction and all require comparison to the ASHRAE Standards and certification by a qualified individual.

Maximize your benefit by hiring an expert

We partner with your business and advisors to provide access to the maximum government energy incentives. Our team of experts take the time to understand your business in order to align your company to all available federal and state credits and/or grants. Our industry-based expertise and successful track record offer peace of mind knowing you have the highest chance of being approved and receiving the maximum benefit on investment possible. 

Ayming’s 179D deduction  process

Broadly, there are two parts to the 179D study process.

  • Evaluation: Determine if the building qualifies for a 179D tax deduction. Conduct a comparison of the building to the reference model for energy efficient qualifications under ASHRAE. This requires an in-person visit to the building by a licensed qualified third party in the state.
  • Documentation: There are two primary documents required for 179D tax deduction. Allocation letters confirming ownership of property and energy efficiency of the building that are signed by authorized personnel. Additionally, a report certifying the building qualifies for 179D and an energy model that shows energy reduction compared to ASHRAE standards.

Learn more about 179D

Download the 179D Deduction Guide to learn more about how you can claim 179D and how we can help you.