End of the IRA Era: Solar Tax Credit Disappears After 2025
1. What Changed & When
On July 4, 2025, President Trump signed the One Big Beautiful Bill Act, which significantly modifies clean energy incentives originally created under the 2022 IRA Utility Dive+13Holland & Knight+13buildwithbasis.com+13Solar+4GreenLancer+4Tax Law Center+4McGuireWoods+4KPM+4GreenLancer+4GreenLancer+1Solar+1.
Residential Clean Energy Credit (Section 25D)
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The 30% federal credit for residential solar, batteries, wind, geothermal ends December 31 2025, with no phase‑out period GreenLancerGreenLancerKPM.
Commercial ITC & PTC (Sections 48E & 45Y)
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Full 30% credit available only if construction begins by July 4, 2026, with four-year safe-harbor for projects beginning early 2026 Financial Times+14Akin - Akin, an Elite Global Law Firm+14GreenLancer+14.
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Projects that start after that must be placed in service by December 31, 2027, or receive no credit US EPA+12Akin - Akin, an Elite Global Law Firm+12GreenLancer+12.
Foreign Entity Restrictions & FEOC Rules
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For projects beginning construction after Dec 31, 2025, credits are disallowed if there’s “material assistance” from prohibited foreign entities (PFEs/SFEs) or if effective control is determined Plante Moran+15White & Case+15Arnold & Porter+15.
Energy Efficiency/EV & Other Credits
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EV credits (Section 30D) now expire September 30, 2025; Home improvement credit (25C) ends Dec 31, 2025; energy-efficient home builders credit (45L) ends June 30, 2026 Solar+5KPM+5NAHB+5.
2. Why It Matters
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The residential solar credit has fueled rooftop installations nationwide; its abrupt end after 2025 could collapse home‑scale solar demand Solar.
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Tight deadlines for commercial credits collide with project timelines—especially for utilities or municipal-scale systems that require land, permits, interconnection, and financing GreenLancer.
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Market reaction: clean energy stocks plunged after House passage, with analysts warning of job losses, higher bills, and lost investment momentum—especially in GOP districts that benefitted from IRA investments Financial Times+3Reuters+3theguardian.com+3.
3. What Installers & Developers Should Do
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Residential installers: prioritize permitting and physical installation before December 31, 2025 to claim Section 25D.
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Commercial developers: begin substantial physical construction by July 4, 2026 (for full credit), and either complete by 2027 or fast‑track professional advice to maximize eligibility.
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Document “begin construction” triggers carefully—deposit or paperwork alone likely does not suffice under IRS’s updated IRS rules and executive order from July 7, 2025 Tax Law Center+10GreenLancer+10Solar+10GreenLancer.
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Review supply chains and equity structures to avoid foreign‑entity disqualifications under FEOC/45Y rules.
4. Outlook & Caveats
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Senate and House provisions may still diverge—some reconciliation remains pending before full implementation.
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Executive orders in early July further tighten definitions; IRS/Treasury guidance expected soon to finalize what counts as beginning construction White & Case+3Holland & Knight+3Akin - Akin, an Elite Global Law Firm+3GreenLancer.
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Industries continue to push for gradual phase‑downs, safer harbor rules, and greater clarity—but momentum for rollback remains strong in GOP-led Congress Financial Timeswsj.com.
Next Steps
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For residential solar installations: complete by Dec 31, 2025.
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Developers: document substantial on‑site activity by July 4, 2026, and target Dec 31, 2027 service completion.
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Conduct FEOC compliance review before initiating new projects in 2026 or later.
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Communicate new timelines clearly to clients and finance partners.