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04 Commercial energy efficiency

Section 179D Tax Deduction.

Document energy-efficient commercial building systems and pursue the applicable inflation-adjusted deduction.

Explore the service
Commercial building team reviewing energy-efficient construction plans

Specialty expertise · organized documentation · clear next steps

Service overview

Make efficient buildings work harder on the tax return.

Section 179D is a federal tax deduction for qualifying energy-efficient commercial building property involving interior lighting, HVAC and hot-water systems, and the building envelope. Eligible private building owners may claim the benefit directly, while qualifying designers of certain government and tax-exempt projects may receive an allocation.

The available deduction depends on the project’s placed-in-service date, measured energy savings, applicable reference standard, and prevailing-wage and apprenticeship compliance. A qualified third party must complete the required energy analysis, inspection, and certification.

Per sq. ft.

Deduction is building-area based

3 systems

Lighting, HVAC/hot water, envelope

3rd party

Independent certification required

How we work

A clear process from first review to final support.

Every engagement follows the same disciplined framework while the technical work is tailored to the service, facts, and decision timeline.

Step _01

Eligibility and allocation review

We identify the building owner, project designer, building type, placed-in-service date, and whether an allocation may be available.

Step _02

Technical data collection

Plans, specifications, system schedules, energy information, labor records, and square footage are organized.

Step _03

Modeling and certification

A qualified independent professional completes the required energy analysis, inspection, and certification.

Step _04

Deduction package

The calculation, certification, allocation records, and filing support are assembled for the taxpayer and tax advisor.

What the engagement can include

Built around the work that creates confidence.

  • Project and taxpayer eligibility review
  • IRS-approved energy-model coordination
  • Lighting, HVAC, and envelope analysis
  • Independent inspection and certification support
  • Allocation-letter support for eligible designers
  • Form 7205 and documentation coordination
Who we support

Relevant expertise for the right business facts.

Commercial building owners
Architects and engineering firms
Design-build contractors
Government-project designers
Designers of qualifying tax-exempt projects
CPAs serving construction and real-estate clients
Our approach

Align the tax claim with the building science.

Section 179D is both a tax and engineering engagement. We coordinate the project facts, energy analysis, certification, allocation, and tax documentation so each part supports the same conclusion.

Because standards and deduction amounts vary by date and project facts, every engagement begins with a current-rule review rather than a generic estimate.

Tax, customs, grant, and financial outcomes depend on current law, program rules, documentation, and each client’s facts. Final filing and legal decisions should be made with the appropriate licensed professionals.
FAQ

Clear answers before the work begins.

Interior lighting, heating, cooling, ventilation, hot-water systems, and the building envelope may be evaluated under the applicable Section 179D rules.

Eligible commercial building owners may claim it directly. Designers of qualifying government and certain tax-exempt buildings may be allocated the deduction when legal requirements are met.

Yes. A qualified independent professional must use approved software and certify that the project meets the applicable efficiency standard.

The amount depends on building square footage, measured energy savings, placed-in-service date, reference standard, and compliance with applicable labor requirements.

Potentially. Qualifying retrofits may be eligible when the building, systems, savings, and timing satisfy the applicable rules.

Start with a focused review

Let’s see whether section 179d fits your business.

Schedule a consultation