Compliance
Compliance Alert: Accelerated Expiration of Energy & Vehicle Tax Credits Under OBBB
Several key clean energy, vehicle, and home improvement tax incentives are expiring earlier than expected under the One, Big, Beautiful Bill—taken effect dates matter now more than ever.
By NomadicTax Research Team • 5-8 min read • November 16, 2025
## What Provisions Are Expiring or Accelerated
According to IRS-Fact Sheet FS-2025-05, several energy and vehicle credits and deductions have earlier cutoff dates under the OBBB: ([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))
| Code Section | What It Rewards | Termination Date |
|-------------|------------------|------------------|
| §25E (Used Clean Vehicle Credit) | Credit for previously owned clean vehicles | No credit for acquisition *after* **Sept 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)) |
| §30D (New Clean Vehicle Credit) | EV/fuel cell vehicle purchases | Acquired after **Sept 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)) |
| §45W (Commercial Clean Vehicles) | Qualified commercial vehicle clean credit | Same cutoff, **Sept 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)) |
| §25C (Energy Efficient Home Improvement) | Energy-saving home upgrades | Property must be placed in service by **Dec 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)) |
| §25D (Residential Clean Energy) | Solar panels, batteries, etc. | Expenditures after **Dec 31, 2025** not allowed ([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)) |
| §30C (Refueling Property Credit) | Installation of EV chargers/fuel refueling property | Ends **June 30, 2026** ([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)) |
| §45L (New Energy Efficient Homes) | Credit for constructing new efficient homes | After **June 30, 2026** property lost eligibility ([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)) |
| §179D (Commercial Efficiency Deduction) | Deduction for energy efficient commercial properties | Construction beginning **after June 30, 2026** disallows deduction ([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)) |
## Practical Actions for Taxpayers & Businesses
- **Act before cutoff dates**: If you're planning to purchase a clean vehicle or make energy-saving improvements, ensure contracts are executed and the vehicle/property acquired or placed in service *before* the specified dates.
- **Binding contracts matter**: For clean vehicles credits (§25E, §30D, §45W), acquisition is defined by having a binding written contract and payment (even nominal downpayment or trade-in) by Sept 30, 2025. You may then claim the credit when the vehicle is placed in service—even after that date. ([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))
- **Plan installations wisely**: For residential clean energy (§25D), if installation or actual use begins after Dec 31, 2025, the credit is lost—even if you paid before that date. ([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))
- **Manufacturers and installers** should be aware registration obligations. Manufacturing status still required for some credits (e.g. §25C) even with accelerated termination. ([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))
## Examples to Keep You on Track
- **Homeowner upgrade**: Sarah hires a contractor for energy-efficient windows that will be installed in November 2025 and paid in December. Since property placed in service is before Jan 1, 2026, she qualifies for §25C credit.
- **Used EV purchase**: Michael signs purchase agreement and pays trade-in for a used clean vehicle on Sept 15, 2025. Though he takes delivery (places in service) in October, he still qualifies under §25E credit. Proof of binding contract and payment date is essential. ([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))
- **Commercial building project**: ABC Corp begins construction of a new energy efficient commercial building starting July 1, 2026. That is after the §179D termination date—so **no deduction** under §179D for that project. Companies should either accelerate start dates or structure differently.
## Compliance Checklist
- Review any contracts or payments **now**—ensure acquisition or placement in service happens **before cutoff dates**.
- For vehicle credits, get the **time-of-sale report** from the dealer when you take possession or within three days. ([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))
- Maintain documentation—including purchase agreements, invoices, installation completion, and original use date—for take-up in audits.
- Consult with tax advisors for larger projects or commercial property, to evaluate whether safe-harbors or different treaty rules apply.
**Bottom line**: OBBB has moved the expiration clock ahead for many energy and clean vehicle incentives. Proactive planning now may save you thousands.