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§45L Energy Efficient Home Credit

Up to $5,000 Federal Tax Credit per Qualified Dwelling Unit. The Act provides new requirements and higher benefits for units sold or leased from January 1, 2023 through December 31, 2032.

Overview

The §45L Energy Efficient Home Credit, as established by the Energy Policy Act of 2005, allows eligible developers to claim a tax credit for each dwelling unit.

Both single-family homebuilders and multifamily developers can benefit from the §45L Credit. The Inflation Reduction Act of 2022 extended the §45L Credit and introduced higher-value opportunities for qualifying homes sold or leased beginning in 2023.

§45L Credit for 2022 and Prior

For residences leased or sold prior to 2022, single-family homebuilders and multifamily developers can benefit from the §45L Credit. The maximum credits per dwelling unit are:

Credit 1
$2,000 per unit
For a new energy-efficient home.
Credit 2
$1,000 per unit
For manufactured homes.
Requirements

Who Qualifies for the §45L Credit

To claim the §45L Energy Efficient Home Credit, the property must meet specific performance and structural requirements. Both new construction and qualifying renovations may be eligible when the following conditions are satisfied:

Energy Efficiency Standard

Energy Efficiency StandardHeating and cooling performance must be at least 50% more efficient than a comparable baseline home.

Building Envelope Requirements

Improvements to the building envelope that provide at least one fifth of that 50% reduction in energy consumption.

Property Height Eligibility

Eligible properties must be three stories or fewer above grade.

Ownership & Claim Window

Properties must be sold or leased as a residence. Credits may be claimed retroactively for up to three years.

Qualified Property Types

Applies to single-family homes, apartments, multifamily housing, student housing, assisted living facilities, and condominiums.

Our Service

Our §45L Credit team includes HERS raters and tax professionals who perform free
assessments to prequalify your homes. Our study includes:

Reviewing construction documents

Interviewing design professionals, project managers, and other relevant personnel

Performing necessary testing and inspections

Modeling energy efficiency using IRS-approved software

Preparing certificates of compliance signed under penalties of perjury by a HERS rater

Coordinating with your tax preparer

Providing free audit support

Let’s Identify Your Savings Opportunities

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Case Study

From Qualification to $440K in Tax Savings

Each unit qualified for the $2,000 §45L credit. Across 220
units, this resulted in $440,000 in total tax savings.

220-unit project · $2,000 per unit
$440,000
Requirements

Eligibility & Credit Breakdown
by Property Type

Our §45L Credit team includes HERS raters and tax professionals who perform free
assessments to prequalify your homes. Our study includes:

1

Single Family Homes

• Up to $2,500 (ENERGY STAR® certified)
• Up to $5,000 (DOE Zero Energy Ready Home)

Based on current ENERGY STAR program standards (Version 3.1 / 3.2)
2

Manufactured Homes

• Up to $2,500 (ENERGY STAR® certified)
• Up to $5,000 (DOE Zero Energy Ready Home)

Must meet ENERGY STAR Manufactured Housing program requirements
3

Multifamily Homes

• $500 → $2,500 (ENERGY STAR®, with prevailing wage)
• $1,000 → $5,000 (ZERH, with prevailing wage)

Applies to projects constructed after 2020
4

Buildings Over Three Stories

• Eligible starting 2023
• Applies to sold or leased residential units

Includes low-rise (1–4), mid-rise (5–9), and high-rise (10+)
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Credit Overview

§45L Credit Summary

A simplified breakdown of eligibility, certification types, and credit
values across residential property categories.

Home
Type

Qualification Requuirement
Prevailing Wage
2023 and Onward
2022 and Prior
Single Family

Energy Star

No

$2,500

$2,000

Single Family

Zerh

No

$5,000

N/A

Manufactured
Home

Energy Star

No

$2,500

$1,000

Manufactured
Home

Zerh

No

$5,000

N/A

Multifamily

Energy Star

No

$500

$2,000

Multifamily

Zerh

No

$1,000

N/A

Multifamily

Energy Star

Yes

$2,500

N/A

Multifamily

Zerh

Yes

$5,000

N/A

Applies to residential units acquired for use as a residence.
Single-family includes site-built, modular homes, duplexes, and townhomes.

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