Solar Panel Installation Cost in 2026: U.S. Homeowner Guide
Typical cost
$18,000 – $33,869
before incentives, typical home system
Residential solar costs roughly $2.50–$3.20 per watt before incentives in 2026. A typical system (7–12 kW depending on the source and home) runs about $18,000–$34,000 before incentives. Importantly: the 30% federal residential solar tax credit (Section 25D) expired for systems placed in service after December 31, 2025 — it no longer applies to new installations. Check current state and utility incentives separately; don't assume the old federal credit still applies.
Cost breakdown
| Item | Typical cost |
|---|---|
| Cost per watt, before incentives | $2.50 – $3.20 per watt |
| Typical system, before incentives | $18,000 – $22,000 |
| Larger system (12 kW), before incentives | $27,526 – $33,869 |
What changes the price
- System size (kW) — the biggest single driver of total cost.
- Panel and inverter brand/tier — premium panels and microinverters cost more than budget equipment.
- Roof complexity — steep pitch, multiple angles, or an older roof needing work before installation adds cost.
- Battery storage, if added — a home battery is a separate, substantial cost on top of the panels themselves.
- Your state and utility — permitting costs, interconnection fees and available state/utility incentives vary widely.
Quote checklist
- System size in kW and expected annual production in kWh for your specific roof and location — not just a national average.
- Panel and inverter brand, wattage per panel, and warranty length for each (equipment and workmanship warranties are separate).
- Whether the price includes permitting, interconnection application, and utility coordination.
- What incentives the installer is (and isn't) including in the 'net cost' shown to you — ask them to show gross cost separately.
- Monitoring system included, and who you contact if production drops.
Financing & incentives
The 30% federal residential solar tax credit (Section 25D) was terminated early by the One Big Beautiful Bill Act (signed July 4, 2025) and does not apply to systems placed in service after December 31, 2025. If a quote assumes a 30% federal credit for a system installed in 2026, that assumption is outdated — verify current state, local and utility incentives directly with your state energy office or utility instead.
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Is the federal solar tax credit still available in 2026?
No — the 30% residential Section 25D credit expired for systems placed in service after December 31, 2025, under the One Big Beautiful Bill Act. If you already installed and had a qualifying system placed in service on or before that date, you may still claim or carry forward the credit for that installation; new 2026 installations do not qualify for it.
Does going solar still make financial sense without the federal credit?
It depends heavily on your local electricity rates, your state/utility incentives, your roof's sun exposure, and net metering rules in your area. Run the numbers with your actual monthly bill and a real installer quote — use a payback calculator with your specific numbers rather than a generic 'solar always pays off' assumption.
Why do solar quotes for the same size system vary so much?
Equipment tier (panel and inverter brand/efficiency), installer overhead, and whether battery storage is included explain most of the spread. Get at least two quotes specifying the exact same panel wattage and total system size in kW so you're comparing like for like.
Related costs
Sources & methodology
Cost figures on this page are sourced from published contractor and industry pricing data, cross-checked where possible, and shown as planning ranges — not a quote. Actual price depends on an in-home or on-site estimate.
- Solar Panel Cost In 2026 — EnergySage, accessed 2026-09-16
- Expiration and Carryforward Rules for the Residential Clean Energy Credit (IN12611) — Congressional Research Service (Congress.gov), accessed 2026-09-16
Last reviewed: 2026-09-16