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Solar Energy One Big Beautiful Bill Act Internal Revenue Service

Paul Hastings LLP

IRS and Treasury Tighten Beginning-of-Construction Rules for Wind and Solar

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On Aug. 15, the U.S. Treasury Department and the Internal Revenue Service (IRS) released IRS Notice 2025-42, narrowing the rules for what qualifies as “beginning of construction” (BOC) under the One Big Beautiful Bill Act...more

Offit Kurman

Navigating the New Construction Timing Rules for Wind and Solar Tax Credits

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The renewable energy sector faces significant regulatory changes following the enactment of the One Big Beautiful Bill Act (OBBBA) on July 4, 2025. Through IRS Notice 2025-42, issued under Executive Order 14315, the Treasury...more

Jones Day

New "Beginning of Construction" Guidelines Issued for Wind and Solar Tax Credits

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The Internal Revenue Service ("IRS") has issued Notice 2025-42 to implement the One Big Beautiful Bill Act ("OBBBA") mandate to phase out the clean electricity production tax credit (§ 45Y) and investment tax credit (§ 48E)...more

Troutman Pepper Locke

IRS Issues Beginning of Construction Guidance in Response to July Executive Order

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On August 15, the Treasury Department (Treasury) and the Internal Revenue Service (IRS) issued Notice 2025-42, which provides guidance on the beginning of construction requirement as it relates to the new credit termination...more

Vinson & Elkins LLP

Beginning of Construction Guidance Eliminates 5% Safe Harbor (for Wind and Solar), but Physical Work Test Survives

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On August 15, 2025, the Department of Treasury and the Internal Revenue Service (“IRS”) released guidance for wind and solar facilities under Sections 45Y and 48E (the “Tech-Neutral Tax Credits”) in the form of IRS Notice...more

Baker Botts L.L.P.

Clean Energy Tax Credits: New Guidance on Beginning of Construction for Wind and Solar Facilities

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On August 15, 2025, the Internal Revenue Service (the “IRS”) and the Department of the Treasury (“Treasury”) released new guidance on the “beginning of construction” for wind and solar facilities under the clean electricity...more

Husch Blackwell LLP

Treasury Guidance Tightens "Beginning of Construction" Standards for Clean Energy Tax Credits, Eliminating 5% Safe Harbor for Wind...

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On August 15, 2025, the Internal Revenue Service (IRS) issued Notice 2025-42, providing long-awaited guidance on the “beginning of construction” requirements for wind and solar facilities under Sections 45Y and 48E of the...more

Bracewell LLP

Treasury Department and IRS Issue New Beginning-of-Construction Guidance for Wind and Solar Facilities

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The One Big Beautiful Bill Act (which we discussed in a previous client alert) generally requires wind and solar facilities to begin construction before July 5, 2026, or be placed in service by December 31, 2027, to qualify...more

Davis Wright Tremaine LLP

IRS Makes It More Difficult for Solar and Wind Facilities to Qualify for Federal Tax Credits

The IRS has made it harder for solar and wind projects to satisfy the beginning of construction rules for purposes of qualifying for federal tax credits....more

Eversheds Sutherland (US) LLP

New Beginning of Construction Guidance Related to the Termination of Wind and Solar Renewable Energy Tax Credits Under the OBBBA

On August 15, 2025, the Treasury Department (Treasury) and Internal Revenue Service (IRS) issued much-anticipated guidance (Notice 2025-42) regarding the determination of when an applicable wind or solar facility is...more

Holland & Knight LLP

IRS Releases New Beginning of Construction Rules for Clean Energy Tax Credits

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The IRS on Aug. 15, 2025, released Notice 2025-42, which provides new guidance on how taxpayers can establish that they have begun construction of a wind or solar facility for purposes of determining whether such facility is...more

McGuireWoods LLP

IRS Notice 2025-42 Leaves Beginning of Construction Guidance for Wind and Solar Mostly Unchanged, But Limits 5% Safe Harbor to...

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On Aug. 15, 2025, the U.S. Internal Revenue Service issued Notice 2025-42 addressing the beginning of construction for wind and solar facilities under Section 45Y and 48E of the Internal Revenue Code of 1986, as amended. The...more

DarrowEverett LLP

Get to Work: New Treasury Guidance Changes Safe Harbors for Solar and Wind Tax Credits

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On August 15, the Treasury Department published long-awaited guidance on applicability of “beginning of construction” safe harbors for solar and wind projects under the One Big Beautiful Bill and Executive Order 14315. While...more

Foley & Lardner LLP

Treasury Releases New Beginning of Construction Guidance for Wind and Solar

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Treasury and the IRS today released guidance, Notice 2025-42 (the “Notice”), regarding what constitutes beginning of construction for solar and wind energy projects with respect to the production tax credit under Section 45Y...more

White & Case LLP

New Law Changes IRA Tax Credits - Update

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This is an updated version of the alert published on July 4. President Trump signed H.R.1, commonly referred to as the "One Big Beautiful Bill Act" (the "Act") into law on July 4, 2025. Below are our summaries of the...more

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