The 179D Deduction is a federal tax incentive under the Internal Revenue Code that allows building owners and certain designers to claim a deduction for implementing energy efficient components, such as HVAC systems, lighting, and building envelope improvements, that achieve a specified energy reduction threshold. Recent updates under the Inflation Reduction Act of 2022 significantly increased the deduction's potential value and adjusted how the credit scales with energy efficiency levels.
The baseline requirement for the deduction is that your building's projected energy costs must be reduced by at least 25% compared to a reference standard. The potential deduction value scales based on whether you meet prevailing wage and apprenticeship requirements. Engineered Tax Services (ETS) acts as an independent third-party engineering firm, performing energy modeling and on-site inspection, then providing the necessary certification report to ensure your property meets the required energy reduction thresholds and qualifies for this valuable deduction.
179D Deduction: Key Facts & Scaling
- Eligibility: Claimed by building owners and certain designers for installing energy efficient components.
- Threshold: Building's projected energy costs must be reduced by at least 25% compared to a reference standard.
- Maximum Value (Labor Compliant): Starts at $2.50 per square foot at 25% savings, up to $5.00/ft at 50% reduction (requires prevailing wage/apprenticeship).
- Maximum Value (Non-Compliant): Starts at $0.50/ft at 25% savings, capped at $1.00/ft at 50% reduction.
Engineered Tax Services as an independent third-party engineering firm, performs energy modeling and provides the required certification report to qualify the property.
