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Updated October 2026. For years, federal tax incentives like the 45L home credit and 179D commercial deduction rewarded builders, designers, and owners who chose high-performance building envelopes. Those federal incentives ended June 30, 2026. The good news: state, local, and utility programs still reward energy-efficient construction, and SIPs remain one of the most straightforward ways to qualify.
Buildings account for a large share of energy use and emissions, which is why so many regional programs target new construction. Choosing structural insulated panel (SIP) construction gives you a stronger, healthier building and puts your project in a strong position for the incentives that remain.
⇒ ALSO READ: Energy Tax Credit Update: What Ended in 2026
What Happened to the Federal Incentives?
- 45L New Energy Efficient Home Credit: not available for homes acquired after June 30, 2026.
- 179D Energy Efficient Commercial Buildings Deduction: not available for buildings that begin construction after June 30, 2026.
Projects that met those deadlines may still claim them, so check with your tax advisor if you have work already underway. See the IRS Energy Credit FAQs for the official termination dates.
Where Incentives Come From Now
Utility programs
Many electric and gas utilities run new-construction programs that offer rebates, design assistance, or energy modeling support for homes and commercial buildings that perform above code. A tight, continuously insulated SIP envelope can reduce heating and cooling loads, which is exactly what these programs measure.
State programs
States offer a mix of rebates, tax credits, grants, and financing for energy-efficient or above-code construction. Some target specific project types, such as affordable housing, public buildings, or zero-energy homes.
Local and financing programs
Some cities and counties offer their own incentives for high-performance buildings. Homebuyers and owners may also qualify for energy-efficient mortgage or green loan programs that recognize lower operating costs.
Affordable multifamily housing
The 2025 federal tax bill expanded the Low-Income Housing Tax Credit (LIHTC) beginning in 2026. Affordable housing developers have more credit capacity, and an efficient SIP envelope helps keep operating costs low for owners and residents.
How to Find Programs for Your Project
Search DSIRE. The Database of State Incentives for Renewables & Efficiency lists state, local, and utility programs across the U.S.
Call your utility early. Many programs require enrollment or energy modeling before construction starts.
Check your state energy office for current rebates, grants, and financing.
Confirm details with a tax professional before counting on any incentive in your budget.
How SIPs Help You Qualify
Most efficiency incentives reward measured performance: lower energy use than code, better air tightness, or a recognized green certification. SIPs help on all three:
- Continuous insulation with minimal thermal bridging for higher whole-wall R-values
- Air tightness that reduces infiltration and HVAC loads
- Documentation from Premier SIPS, including R-values, assemblies, and code reports, to support program applications
Build Efficient With or Without Federal Credits
Federal credits were a bonus. The lasting value of SIPs comes from faster construction, less waste, fewer callbacks, and lower energy bills for the life of the building. Premier SIPS representatives can help you plan a project that's positioned for the incentives available in your region.
Contact a Premier SIPS representative in your area today.
This article is for general information only. Please consult a tax professional about your specific project.
Ready to Build Beyond Conventional Framing?
Premier SIPS deliver a high-performance building envelope that outperforms traditional framing in efficiency, strength, and long-term durability. If you're evaluating SIPs, planning an upcoming project, or ready for pricing, now is the time to talk with our team about the right next step.
