Section 179D Energy Efficient Commercial Building Tax Deduction

Are you investing in energy efficient systems for your commercial building? By leveraging Section 179D, you can claim significant tax deductions for energy-saving improvements.

Sam Houston Statue – Houston

What is Section 179D?

The Energy Efficiency Commercial Building Tax Deduction, also known as Section 179D of the Internal Revenue Code (IRC), provides a tax deduction for commercial property owners and designers who implement energy efficient systems in their buildings. The tax benefit applies to improvements in lighting, HVAC/hot water systems, and/or the building envelope. The goal of the deduction is to promote sustainability in construction, renovation, and retrofits, providing financial relief for businesses committed to energy efficient practices.

Two Pathways to Pursue 179D:

  1. Traditional (Modeling) Pathway: Applies to both new construction and building upgrade projects. These properties are referred to as energy efficient commercial building properties (EECBP). Energy modeling is used to evaluate the impact of eligible EECBP compared to the performance of a reference building model as a requirement of ASHRAE Standard 90.1.
  2. Alternative (Measurement) Pathway: Applies only to building upgrade projects that were placed in service at least 5 years prior to the project. These properties are referred to as energy efficient building retrofit properties (EEBRP). This pathway requires the measurement of pre-upgrade site energy use intensity and post-upgrade site energy use intensity.

Legislative Background

Originally introduced in the Energy Policy Act of 2005, 179D has been extended and modified over the years to align with evolving energy efficiency standards.

Inflation Reduction Act and 179D

The Inflation Reduction Act (IRA) amended 179D for taxable years beginning after December 31, 2022, resulting in significant changes and improvements, particularly for businesses and designers investing in energy-efficient systems. Key updates under the IRA include:

  • Increased Deduction: Projects that meet local prevailing wage and apprenticeship requirements can qualify for up to 5 times the standard deduction.
  • Broader Eligibility: The IRA expanded eligibility, allowing more businesses, particularly those in low- and moderate-income communities, to qualify for the incentive.
  • Updated Energy Standards: The IRA aligns 179D with more current energy efficiency standards, which now align more closely with ASHRAE 90.1.

Qualification and Eligibility Criteria

Who Qualifies for the 179D Tax Deduction?

  • Building Owners: Taxpaying entities who own commercial property placed in service and install qualifying energy efficient systems in their buildings.
  • Designers: Professionals such as architects, engineers, contractors, environmental consultants, and energy service providers may qualify for their designs on buildings owned by government and tax-exempt entities, if properly allocated to them by said entities.

What Kinds of Properties Are Eligible?

The 179D deduction is available for a variety of property types, based on who is claiming it. Building owners can claim for a range of commercial properties, while designers may claim it for only government-owned or tax-exempt property owners.

Building owners can claim the deduction for energy efficient improvements made on commercial properties such as:

Office Buildings
Retail Stores
Industrial Facilities
Warehouses
Apartment Buildings

(4+ Stories)

Hotels

Designers can claim the deduction for energy efficient improvements on properties owned by government or tax-exempt entities, including Federal, state and local government buildings.

Charitable Organizations
Not-for-Profit Schools & Universities
Churches and Other Religious Organizations
Hospitals
Libraries
Military Bases
Courthouses
Airports
Public Parks
Buildings Owned by Tribal Organizations

What Energy efficient improvements must be made for a property to qualify?

To qualify for 179D, energy efficient improvements can be part of new construction or the retrofit of existing properties that have been placed in service for at least 5 years. Additionally, all upgrades must comply with ASHRAE 90.1 standards (or equivalent) and be certified by a qualified professional to ensure energy savings are accurately assessed. Lastly, these improvements must focus on reducing energy consumption in at least one of these three categories:

Interior Lighting Systems

Upgrading to energy saving lighting systems such as LED fixtures and automated lighting controls, significantly reducing energy consumption.

HVAC and Hot Water Systems

Installing high-efficiency HVAC systems or hot water systems that reduce energy usage while improving heating and cooling efficiency

Building Envelope

Improvements to the building envelope include better insulation, energy efficient windows, roofing systems, and other structural modifications that reduce heat loss and gain.

Deduction Value

The Section 179D deduction offers significant tax savings, ranging from $0.54 to $5.65 per square foot, for properties with at least 25% and up to 50% energy savings and improvements that meet the necessary standards outlined in ASHRAE 90.1.

Additional Savings: Starting in 2023, projects that meet local prevailing wage and apprenticeship requirements are eligible for an increased maximum deduction, up to 5 times the standard amount per square foot.

Tax Year
Property Meets Only 179D Criterion
Property Meets 179D Criterion + Prevailing Wage and Apprenticeship
2023
$0.54-$1.07 per square foot
$2.68-$5.36 per square foot
Deduction increases $0.02 for each percentage point above 25% energy savings, max of 50%.
Deduction increases $0.11 for each percentage point above 25% energy savings, max of 50%.
2024
$0.57-$1.13 per square foot
$2.83-$5.65 per square foot
Deduction increases $0.02 for each percentage point above 25% energy savings, max of 50%.
Deduction increases $0.11 for each percentage point above 25% energy savings, max of 50%.
2025
$0.58-$1.16 per square foot
$2.90-$5.81 per square foot
Deduction increases $0.02 for each percentage point above 25% energy savings, max of 50%.
Deduction increases $0.12 for each percentage point above 25% energy savings, max of 50%.

Tax Scenario: A 50,000 square-foot building implementing energy efficient improvements could potentially claim a deduction ranging from $27,000 to $282,500 depending on energy savings and compliance with all requirements.

Where Royse Partners Comes in:

We simplify the Section 179D deduction process with a clear, organized approach that guides you from initial consultation to final filing, ensuring you maximize your Section 179D benefits at every stage.

Step 1
Consultation & Document Request
During this no-cost consultation, we assess your property’s eligibility and the energy efficiency improvements you’ve made, or plan to make by reviewing relevant documentation such as architectural plans, supply costs, and contracts.
Step 1
Step 2
Energy Efficiency Modeling and On-Site Evaluation
Licensed Professional Engineers perform detailed energy modeling and a site inspection to ensure compliance with ASHRAE 90.1 standards (or equivalent) and determine the energy savings from your improvements. During the site visit energy systems and equipment are assessed to verify that they match the building plans provided during intake.
Step 2
Step 3
Certification Delivery
The official certification is prepared, outlining the qualified improvements and energy savings. This document is signed by a Licensed Professional Engineer, validating your eligibility for the Section 179D deduction.
Step 3
Step 4
Tax Filing Support
We help you accurately report the Section 179D deduction on your tax return. Our team works with your tax preparer to file Form 7205 and include the deduction as a line item on your return, ensuring everything is properly documented.
Step 4
Step 5
Post-Filing Support and Audit Defense
After your deduction is filed, we provide ongoing support, including audit defense. Should the IRS require additional documentation, we are ready to assist and safeguard your tax benefits.
Step 5

Common Questions

Yes, a building owner can take the deduction for a property placed in service from January 1, 2006, and after. However, a designer can only take a deduction for an allocated project completed within three years of their latest federal tax return filing date.

Yes, certain residential buildings, such as apartment buildings that are four stories or more above grade, are eligible for the deduction. These buildings are classified as commercial properties under the tax code. However, smaller residential buildings, like single-family homes or those under four stories are not eligible for 179D and may instead qualify for the 45L Tax Credit for energy efficiency residential properties.

Yes, multiple designers can claim the deduction for the same building. Each designer must obtain an allocation letter from the property owner authorizing them to claim the deduction for their contributions to the building’s design.

Yes, you can claim the 179D deduction alongside other energy-related incentives, as long as there is no overlap in claiming the same expenses for multiple benefits. It’s essential to avoid double-dipping (using the same improvement costs to claim multiple tax benefits).

Have more questions? Check out our FAQs

Interested in claiming the Section 179D deduction for your building’s energy efficient improvements?

Contact us today to schedule your no-cost consultation.