Quick Answer
The Section 45L credit provides $2,500-$5,000 per qualifying energy-efficient home built for sale. For 2023-2032, homes meeting ENERGY STAR standards earn $2,500, while homes achieving 50% energy savings earn $5,000. The credit was recently enhanced with prevailing wage requirements and domestic content bonuses.
Best Answer
Robert Kim, Tax Return Analyst
Construction companies and contractors building energy-efficient homes for sale to customers
What is the Section 45L credit
The Section 45L Energy Efficient Home Credit provides tax credits to eligible contractors who build qualifying energy-efficient homes for sale. The credit was significantly enhanced by the Inflation Reduction Act and now provides $2,500 to $5,000 per qualifying home built between 2023 and 2032.
Eligible taxpayers: The person who constructed the home for sale. This includes:
Credit amounts and requirements
$2,500 Base Credit:
$5,000 Enhanced Credit:
Example: Production builder completing 50 homes
Scenario: Builder completes 50 ENERGY STAR certified homes in 2026
If 25 of those homes achieved the 50% energy savings standard:
Prevailing wage requirements (2023-2032)
For the $5,000 enhanced credit, construction workers must be paid prevailing wages as determined by the Department of Labor. This requirement applies to projects where construction begins after January 29, 2023.
Key compliance steps:
Domestic content bonus (starting 2025)
Homes can qualify for additional credits if they meet domestic content requirements:
What you should do
Start with ENERGY STAR certification for immediate $2,500 per home credits. Work with energy consultants to model whether the 50% energy savings standard is cost-effective for your builds. Factor prevailing wage costs into project budgets when pursuing the enhanced credit.
Document everything: energy modeling reports, third-party certifications, payroll records, and material sourcing. The IRS has increased audit activity for these credits due to their size.
Use our [return scanner](#) to ensure you're claiming all available construction-related credits, or our [refund estimator](#) to calculate potential savings from past qualifying homes.
Key takeaway: Section 45L credits can provide $125,000-$250,000 in annual tax savings for builders completing 50 energy-efficient homes, but require careful compliance with energy standards and wage requirements.
*Sources: IRC Section 45L, IRS Notice 2023-18, DOE Home Energy Rating System*
Key Takeaway: Section 45L credits provide $2,500-$5,000 per energy-efficient home built for sale, potentially generating hundreds of thousands in annual tax savings for active builders.
Section 45L credit amounts and requirements by home type and energy performance level
| Performance Level | Credit Amount | Requirements | Prevailing Wage Required |
|---|---|---|---|
| ENERGY STAR Certified | $2,500 | Meets ENERGY STAR standards, 3rd party verification | No |
| 50% Energy Savings | $5,000 | 50% savings vs 2006 IECC, energy modeling | Yes (2023-2032) |
| Zero Energy Ready | $5,000 | DOE Zero Energy Ready standard | Yes (2023-2032) |
| Non-compliant (penalty) | $500 | Failed prevailing wage requirements | N/A |
More Perspectives
Michelle Woodard, Tax Policy Analyst
Companies manufacturing energy-efficient mobile homes and modular housing units
Section 45L for manufactured housing
Manufactured housing producers can claim Section 45L credits for energy-efficient units that meet specific criteria. Unlike site-built homes, manufactured housing faces additional certification requirements under HUD codes.
Qualifying manufactured homes
ENERGY STAR Manufactured Homes Program:
50% Energy Savings Standard:
Example: Mid-size manufacturer producing 200 units annually
Conservative approach (ENERGY STAR only):
Unique compliance challenges
Manufactured housing faces specific hurdles:
State-specific considerations
Some states offer additional incentives for energy-efficient manufactured housing:
Coordinate federal Section 45L credits with state programs for maximum benefit.
Key takeaway: Manufactured housing producers can generate substantial Section 45L credits, but must navigate both HUD manufacturing standards and DOE energy requirements.
Key Takeaway: Manufactured housing producers can claim significant Section 45L credits but must carefully navigate dual regulatory requirements from both HUD and DOE.
Robert Kim, Tax Return Analyst
Development companies building residential subdivisions and planned communities
Section 45L for residential developers
Large-scale residential developers can leverage Section 45L credits across entire subdivisions, potentially generating millions in tax savings while creating marketable energy-efficient communities.
Development-scale opportunities
Master-planned communities offer the greatest credit potential:
Example: 500-home subdivision development
Mixed approach strategy:
Implementation considerations:
Prevailing wage compliance at scale
Large developments must carefully manage prevailing wage requirements:
Best practices:
Marketing and sales benefits
Beyond tax credits, energy-efficient communities offer competitive advantages:
Risk management
Large-scale Section 45L claims require careful risk management:
Key takeaway: Residential developers can generate millions in Section 45L credits through subdivision-scale energy efficiency programs, but must implement robust compliance and documentation systems.
Key Takeaway: Large residential developers can generate millions in Section 45L credits through systematic energy efficiency programs across entire subdivisions, requiring sophisticated compliance management.
Sources
- IRC Section 45L — New Energy Efficient Home Credit tax code section
- IRS Notice 2023-18 — Guidance on enhanced Section 45L credits and prevailing wage requirements
- DOE Home Energy Rating System — Energy performance measurement standards for residential buildings
Reviewed by Robert Kim, Tax Return Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.