
Solar economics,
post-ITC honest.
The federal residential solar credit expired 12/31/2025. Most installer marketing in 2026 still cites the 30% credit. Here's where solar still pencils out, where it doesn't, and the timing question with roof replacement.
Is residential solar still worth it in 2026 after the federal credit expired?
State-by-state. ~10 states have surviving incentive programs strong enough for solar to pencil out in 8-12 years (NY, MA, NJ, IL, MD, OR, CT, RI, VT, MN). ~10 are coin-flip — depending on utility, sun exposure, and self-consumption rate. ~30 are honest 'not without a fight' — payback runs 15-22 years on net-metering credits + electricity-rate avoidance alone.
Why your installer’s pitch is probably wrong
The federal residential solar Investment Tax Credit (Section 25D) ended 12/31/20251 under the One Big Beautiful Bill Act passed in 20252. Most installer marketing materials, websites, and customer-facing financing tools were built around the 30% credit and have not all been updated. As of 2026-04, an unsettling share of solar quotes still show “30% federal tax credit” as a line item on the proposal — sometimes prominently, sometimes folded into the financing math.
That single number can flip a 12-year payback into a 17-year payback. We test for it on every solar proposal we review. If your proposal shows a 30% federal residential credit for a 2026+ install, the installer is either out of date or misleading. Walk.
Note: Section 48E (commercial / 3rd-party / PPA / lease) continues with phase-down rules. If your installer is structuring the install as a third-party-owned system (PPA or lease), the commercial credit can flow to the owner — but typically that doesn’t reduce your monthly bill more than a self-owned system without the credit.
Where solar still works in 2026
States with surviving incentive programs strong enough for solar to clear 8-12 year payback (post-ITC)3:
- New York — NY-Sun Megawatt Block + state income-tax credit (25%/$5,000) + NYSERDA storage rebate
- Massachusetts — SMART program tariffs + state income-tax credit (15%/$1,000)
- New Jersey — Successor Solar Incentive (SuSI) + sales/property tax exemption
- Illinois — Illinois Shines / Adjustable Block Program (ABP) + active SREC market
- Maryland — Energy Storage Tax Credit + state solar grant + SREC market
- Oregon — Energy Trust of Oregon residential incentive + state solar+storage rebate
- Connecticut, Rhode Island, Vermont, Minnesota — utility programs + state-level incentives
Use the Solar Reality Check 2026 tool for the actual payback math by state and utility.
The roof + solar timing question
Solar panels last 25 years. Asphalt shingle roofs last 25-30 years (architectural) or 30-40 years (Class 4 impact). The arithmetic is unforgiving: if your roof is past 60% of rated lifespan, replace it before solar. Tearing solar off and reinstalling at the next roof replacement costs $3-8k beyond the new-roof job. Coordinate the work — many contractors do both, with single-warranty coverage on flashing details.
If your roof is younger than 60% of lifespan, solar-on-existing-roof is fine — just verify warranty (most asphalt manufacturers explicitly cover panel-mounted roofs as long as the install uses approved flashing).
Common questions
Sources
- Internal Revenue Service·IRS Form 5695 / Section 25D guidance — Federal residential clean energy credit guidance — Section 25D expired 12/31/2025.
- US Congress / Public Law·One Big Beautiful Bill Act (2025) — Statute that ended the residential ITC effective 12/31/2025.
- NC Clean Energy Technology Center·Database of State Incentives for Renewables & Efficiency — Authoritative state-by-state registry of solar incentive programs.
- NREL — National Renewable Energy Laboratory·PVWatts Calculator — Federal model for solar production estimation by location.
Solar Reality Check 2026.
State + utility + system size + self-consumption rate → 2026 honest payback period (federal ITC removed). Plus a flag if your installer's proposal still cites the expired credit.