Tax Planning
Maximizing Clean Energy Credits Before Expiration: What Individuals & Businesses Need to Know
Significant clean energy tax incentives under the “One, Big, Beautiful Bill” are ending soon—learn what qualifies, what deadlines matter, and how to act now to preserve these savings.
By NomadicTax Research Team • 5-8 min read • February 27, 2026
## What’s Changing
Under the *One, Big, Beautiful Bill* (OBBB), several energy credits—including clean vehicle and home energy incentives—are expiring sooner than under prior law. Key credits affected include:
- **New Clean Vehicle Credit (Section 30D)**, **Used Clean Vehicle Credit (Section 25E)**, and **Qualified Commercial Clean Vehicle Credit (Section 45W)**—no longer available for **vehicles acquired after September 30, 2025**. ([irs.gov](https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb?utm_source=openai))
- **Energy Efficient Home Improvement Credit (25C)** and **Residential Clean Energy Credit (25D)**—not allowed for property placed in service/expenditures made **after December 31, 2025**. ([irs.gov](https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb?utm_source=openai))
- Credits/deductions related to commercial buildings (179D), refueling property (30C), and energy-efficient home tax incentives (45L) also face accelerated phaseouts. ([irs.gov](https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb?utm_source=openai))
## Who’s Affected & Key Definitions
- **“Acquired”**: For clean vehicle credits, acquisition means a written binding contract plus payment (nominal down-payment or trade-in) made by **on or before** the relevant cut-off date—even if the vehicle is placed in service after. ([irs.gov](https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb?utm_source=openai))
- **“Placed in service”**: Must be when the taxpayer takes possession (or drives off lot), which triggers eligibility, but credit eligibility can survive if acquisition criteria are met beforehand. ([irs.gov](https://www.irs.gov/instructions/i8936?utm_source=openai))
## Action Steps & Strategies
| Goal | Recommended Steps |
|---|---|
| You want a clean vehicle credit | Secure a binding contract + down payment by September 30, 2025. Then take delivery as soon as possible. Use the *Time-of-Sale Report* via IRS Energy Credits Online (ECO) to document eligibility. ([irs.gov](https://www.irs.gov/credits-deductions/how-to-claim-a-clean-vehicle-tax-credit?utm_source=openai)) |
| You plan home energy improvements | Complete installation and driver for tax credit expenditures *on or before* December 31, 2025, meaning procurement & installation schedules must be tight. Don’t assume paying before year-end automatically qualifies if placement/installation incomplete. ([irs.gov](https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb?utm_source=openai)) |
| You are a business evaluating commercial building deductions | Act by the shortened deadlines (June 30, 2026, for certain commercial buildings, refueling property, etc.) and ensure projects begin prior to expiration. ([irs.gov](https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb?utm_source=openai)) |
## Compliance Considerations & Pitfalls
- **Eligibility & Documentation**: Missing a Time of Sale report (for vehicles) or failing to meet certified manufacturer/regional assembly rules may disqualify you. Document everything carefully. ([irs.gov](https://www.irs.gov/credits-deductions/how-to-claim-a-clean-vehicle-tax-credit?utm_source=openai))
- **Phase-out & income thresholds**: Some energy credits have income caps or phase-outs. Make sure your Modified AGI is within limits well before you commit funds. ([irs.gov](https://www.irs.gov/newsroom/irs-releases-tax-inflation-adjustments-for-tax-year-2026-including-amendments-from-the-one-big-beautiful-bill/?utm_source=openai))
- **Plan for delays**: Supply chain or permitting can hold up installations or delivery. For home credits, delays past December 31, even if you paid, can kill eligibility. For vehicles, acquisition must be completed by deadline—but possession can be after. ([irs.gov](https://www.irs.gov/newsroom/faqs-for-modification-of-sections-25c-25d-25e-30c-30d-45l-45w-and-179d-under-public-law-119-21-139-stat-72-july-4-2025-commonly-known-as-the-one-big-beautiful-bill-obbb?utm_source=openai))
## Sample Scenario
Sarah is a sole owner business with Modified AGI of \$120,000. She signs a binding contract and makes a \$2,000 down payment for a qualifying new clean vehicle (under Section 45W) on September 25, 2025. She takes possession (places it in service) on October 15, 2025. Because acquisition was before the cut-off, she qualifies for the credit, assuming all other eligibility rules (manufacturer, VIN certs, seller reporting) are met. She must also ensure she has a Time-of-Sale Report from the seller via ECO. If any piece fails—say the vehicle isn't properly certified or seller doesn't report—the credit might be denied.
Meanwhile, her neighbor Jack starts a solar panel installation project in November 2025, but the panels are not fully installed until February 2026. Even though Jack paid in November, the credit for residential clean energy under Section 25D won’t apply, as installation (original use) began after December 31, 2025.
## Bottom Line
If you intend to make use of **OBBB’s clean energy credits**, move faster: acquisition, payment, installation, all before accelerated deadlines (end of 2025 or mid-2026 in some cases). **Double-check eligibility**, **document well**, and consult a tax professional—especially for high-value transactions.