Energy Efficiency for Affordable Housing Act

Bill Number

S. 2638

Origin Chamber

Senate

Congress

119th Congress, Session 1

Policy Area

Taxation

Status

Introduced

Latest Action

2025-07-31: Read twice and referred to the Committee on Finance.

Last Updated

2025-09-05T19:31:00Z

AI-Generated Summary

Purpose

The Energy Efficiency for Affordable Housing Act (S. 2638) aims to encourage the rehabilitation of existing low-income housing by providing enhanced tax incentives for projects that improve energy efficiency. It modifies the low-income housing tax credit (a federal tax break under the Internal Revenue Code that supports the construction and rehabilitation of affordable rental housing for low-income families) to reward buildings that meet higher energy performance standards, promoting both affordability and environmental sustainability.

Key Provisions

• Credit Increase for Enhanced Energy Performance: For rehabilitated existing buildings (not new construction) that achieve "enhanced energy performance," the eligible rehabilitation expenditures qualify for a 130% increase in the low-income housing tax credit. This means developers can claim tax credits based on 1.3 times their actual spending on qualifying improvements.
• Definition of Enhanced Energy Performance: A building qualifies if it meets one of two criteria:
• It complies with minimum requirements of an "advanced building construction standard" (to be defined by the Secretary of Energy using calculation methods like energy modeling; these standards must be issued within 180 days of the bill's enactment).
• It follows a "qualified retrofit plan" (an optional election by the taxpayer), which is a certified plan by a qualified professional (e.g., licensed architect or engineer) projecting at least a 50% reduction in the building's "site energy usage intensity" (measured in British thermal units per square foot per year, representing on-site energy consumption like electricity and gas) compared to a baseline from the prior 24 months. The plan requires certification of the baseline, projected savings, and post-installation verification.
• Special Rule for High-Cost Areas: In regions designated as high-cost (under existing tax code rules for increased credits), buildings achieving enhanced energy performance get a further boost: the credit increases to 160% of expenditures, and certain existing limits on high-cost area credits do not apply.
• Effective Date: Applies to housing credit allocations after December 31, 2025. For projects financed by tax-exempt bonds (a common funding method for affordable housing), the changes apply to bonds issued after that date.

Significant Changes to Existing Law

• Amends Section 42(e)(2) of the Internal Revenue Code of 1986, which currently defines how rehabilitation expenditures qualify for the low-income housing tax credit (generally requiring at least $6,000 per low-income unit and 20% of total project costs).
• Adds new subparagraphs (C) and (D) to introduce the 130% and 160% multipliers specifically for energy-efficient rehabilitations, without altering the core credit structure for non-energy-enhanced projects.
• Introduces new definitions and requirements (e.g., qualified retrofit plans, site energy usage intensity) and delegates authority to the Secretary of Energy for standards and guidance, expanding federal oversight beyond the IRS.

Potential Impacts

• On Government Agencies: The IRS will administer expanded tax credits, potentially increasing claims and revenue forgone (estimated costs not specified in the bill). The Department of Energy must promptly develop and promulgate energy standards, adding administrative workload but aligning with broader federal energy efficiency goals.
• On Citizens: Low-income renters in rehabilitated housing may benefit from lower utility bills due to energy savings, improved living conditions, and preserved affordability. It could accelerate upgrades in older housing stock, reducing energy poverty in underserved communities.
• On International Relations: Minimal direct impact, though it supports U.S. commitments to global energy efficiency and climate goals (e.g., reducing greenhouse gas emissions from buildings, a major sector).
• Broader Effects: Incentivizes private investment in green retrofits, potentially creating jobs in construction and energy services while lowering long-term energy demands on the grid.

Main Stakeholders Affected

• Developers and Property Owners: Primary beneficiaries, as they receive larger tax credits to offset costs of energy-efficient rehabilitations, making projects more financially viable.
• Low-Income Residents: Indirectly helped through more sustainable, cost-effective housing.
• Energy Professionals: Licensed architects, engineers, and certified experts who prepare and stamp retrofit plans, gaining new business opportunities.
• Government Entities: IRS (tax credit oversight), Department of Energy (standard-setting), and state housing agencies (which allocate credits).
• Environmental and Housing Advocates: Groups pushing for affordable green housing, who may see this as a tool to address climate change and housing shortages.

Notable Legal, Constitutional, or Political Implications

• Legal: Relies on existing tax code authority for incentives, with no new enforcement mechanisms; however, the delegation to the Secretary of Energy for standards could face challenges if not implemented transparently (e.g., under the Administrative Procedure Act). The bill's definitions ensure verifiable energy savings, reducing fraud risks in tax claims.
• Constitutional: No apparent issues; tax incentives are a standard congressional power under Article I, and the bill promotes general welfare without infringing on states' rights (states already allocate credits).
• Political: Aligns with bipartisan interests in housing affordability and clean energy, potentially appealing to urban Democrats (sponsors include Sens. Klobuchar, Warren, Smith, and Van Hollen) and energy-conscious Republicans. It could influence future tax reform debates by tying social welfare to environmental policy, though critics might argue it complicates the tax code or favors certain regions.

This summary was generated by AI and may contain inaccuracies. Refer to the official source document for the authoritative text.

Sponsor

Sen. Klobuchar, Amy [D-MN]

Cosponsors (3)

Sen. Warren, Elizabeth [D-MA], Sen. Smith, Tina [D-MN], Sen. Van Hollen, Chris [D-MD]

Recent Actions

• 2025-07-31: Read twice and referred to the Committee on Finance.
• 2025-07-31: Introduced in Senate

Bill Versions

• Energy Efficiency for Affordable Housing Act — issued 2025-07-31 — PDF (6 pages)