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Expanded Section 45L tax credit rewards developers of energy-efficient homes

January 24, 2024 / 7 min read

Section 45L, the energy-efficient home credit, provides developers a tax credit per qualifying unit if they can certify the energy-saving qualities of the residence. Our experts talk through the 45L tax credit requirements and how you could benefit.

The Inflation Reduction Act (IRA), enacted in Aug. 2022, provides wide-ranging incentives supporting the clean energy transition for the U.S. economy. This included both the creation of new tax credits and significant modifications to existing tax credits and incentives. One of the significant changes involves the Section 45L New Energy-Efficient Home Credit. The enhanced version of Section 45L increases the benefits of the credit and provides additional flexibility to the developers and contractors wishing to claim it.

The basics of the Section 45L tax credit

The Section 45L New Energy-Efficient Home Credit allows a federal tax credit to eligible contractors that build new residential units in the United States that meet certain criteria. To claim the credit, eligible contractors must construct a qualified energy-efficient home and sell or lease it for use as a residence. Generally, eligible contractors that meet these requirements are then eligible to claim a one-time, per-unit credit in the tax year the residence is sold or leased. For the purposes of Section 45L, an eligible contractor includes the person who constructs the home or manufactures the manufactured home.

Qualified units include apartments, condominiums, assisted living facilities, student housing, townhomes, and single-family homes. The credit is available for new construction and for buildings that have undergone “substantial reconstruction and rehabilitation.”

A fundamental aspect of Section 45L is energy efficiency, so qualifying homes must satisfy specific energy savings standards. As such, contractors who want to claim the credit need to follow specified procedures to certify the units in question. Once these hurdles are cleared, the credit can result in significant savings for businesses, especially those that develop multiple units during the year.

What changes were made to Section 45L?

The IRA made the following changes to Section 45L, which are applicable to dwelling units acquired after Dec. 31, 2022:

Chart showing tax credit amounts for single- and multi-family homes.

How to take advantage of the modified Section 45L rules

The modified Section 45L rules are expected to increase interest from taxpayers in claiming the credit for years to come. As such, eligible contractors should consider several key issues as they navigate the construction of energy-efficient homes.

To learn more about how you might qualify for the Section 45L new energy-efficient home credit, please contact your Plante Moran advisor. Have additional questions on how IRA tax credits, incentives, and monetization options could impact your organization? Explore more from our tax leaders as they track the latest developments.

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