Quick Answer: In 2026, most home solar systems in the USA cost $15,000 to $25,000 before incentives — about $2.50 to $3.50 per watt. The big change: the 30% federal solar tax credit ended on December 31, 2025. So if you buy panels with cash or a loan now, you don’t get that federal discount anymore. The good news? Your state can still help, and a lease or PPA can too.
State programs can still cut your price — see our solar incentives by state 2026 guide.
If you read older guides, you’ll see a “30% federal discount” everywhere. That’s gone now for most buyers. So let’s skip the outdated stuff and look at what solar really costs in 2026 — and where you can still cut the price.
The One Change That Hits Your Budget
On July 4, 2025, the One Big Beautiful Bill Act became law. It ended the Section 25D residential solar tax credit. Any homeowner-owned system not turned on by December 31, 2025 missed it.
What that means for you in 2026:
- Buy with cash or a loan? You get $0 federal credit.
- Go with a lease or PPA? The company that owns the system can still claim 30% under Section 48E (through Dec 31, 2027 if construction starts by July 4, 2026). They often pass some of that saving to you.
- State incentives matter more than ever.
So a system that cost about $15,000 after the credit in 2025 may now cost the full $20,000+ in 2026 for a cash buyer.
💡 Choosing an installer next? Read my full 2026 review of the best US solar companies after the federal tax credit ended — 10 top installers, red flags, and state-specific picks.
Average Solar Cost in 2026
Here are the rough numbers you should expect. These are national averages — your real quote depends on your roof, state, and gear.
| How it’s priced | 2026 range (before incentives) |
|---|---|
| Per watt | $2.53 – $3.66 (avg ≈ $2.58) |
| Full home system | $15,000 – $25,000 |
| Installed (typical) | $2.50 – $3.50 per watt |
Pro tip: Always compare quotes per watt. It cancels out system size. If one installer says $3.10/watt and another says $2.70/watt for similar gear, the cheaper one usually wins.
Cost by System Size
Most US homes need somewhere between 5 kW and 12 kW. Here’s a planning guide at about $3.00 per watt:
| System | Yearly output* | Cost before incentives |
|---|---|---|
| 5 kW | ~6,000–8,000 kWh | $15,000 |
| 6 kW | ~7,200–9,600 kWh | $18,000 |
| 8 kW | ~9,600–12,800 kWh | $24,000 |
| 10 kW | ~12,000–16,000 kWh | $30,000 |
| 12 kW | ~14,400–19,200 kWh | $36,000 |
*Output changes a lot by state. A 6 kW system makes way more power in Arizona than in Michigan.
Where Your Money Actually Goes
Most people think the panels are most of the bill. They’re not. Panels are usually less than a third. Here’s a typical split:
- Solar panels: 25–30%
- Inverter (string or microinverters): 10–15%
- Mounting and racking: ~10%
- Labor and installation: 15–20%
- Permits, inspection, interconnection: 5–10%
- Sales, design, overhead, profit: ~20%
This is why two homeowners with the same panels can pay very different totals. Labor rates, permit fees, and roof complexity change everything.
Costs by State (Roughly)
Your state matters two ways: installation prices and local incentives. Here’s the simple version:
- Cheap, sunny states (Arizona, Texas, Florida) often still pay off well. Output is high even without the federal credit.
- States with their own tax credits soften the loss. Examples: New York (25%), South Carolina (25%), Massachusetts (15%).
- High-labor states (parts of the Northeast and California) cost more per watt to install.
For a deeper look at whether the math works where you live, read our state-by-state guide: Are solar panels worth it in 2026?
How to Still Save in 2026
The federal cash-buyer credit is gone. But these levers still work:
- Solar lease or PPA (Section 48E): You don’t own the system. The owner takes the 30% credit. You pay a fixed monthly rate that’s usually lower than your old bill.
- State tax credits and rebates: Can return 15–25% of system cost in some states.
- Net metering: Sell extra power back to the grid for bill credits. Rules vary by utility.
- Property and sales tax exemptions: Many states don’t tax the added home value or the gear.
- Get three or more quotes. Real bidding alone often saves 10–20%.
Cash vs Loan vs Lease/PPA
| Option | Upfront | Federal credit | Best for |
|---|---|---|---|
| Cash | Full ($15k–$25k+) | None | Lowest lifetime cost, fastest payback |
| Loan | $0 to low | None | Own the system without big upfront cash |
| Lease / PPA | $0 | 30% (claimed by owner) | No upfront cost, easy monthly savings |
There’s no single best option. It depends on whether you care more about ownership and long-term savings (buy) or zero upfront cost and simplicity (lease/PPA).
Is Solar Still Worth It Without the Credit?
For many homeowners, yes — but the math is tighter now. Payback used to be 7–9 years. Now it’s often 8–12+ years for cash buyers. The big factors:
- Your electricity rate (higher = faster payback)
- Your sun hours (state and roof angle)
- State incentives you qualify for
- How you pay (buy, loan, lease)
Honest take: solar still pays off well in high-rate, high-sun states. In cheap-power states the case is weaker than in 2025. Run your own numbers before signing anything.
How to Get an Accurate Quote
- Pull 12 months of electric bills. Add up your yearly kWh use.
- Ask installers to quote per watt so you can compare fairly.
- Get the exact panel and inverter brand, plus the production guarantee.
- Ask which state and utility incentives you qualify for in 2026.
- Get at least three quotes. Then pick.
Not sure which company to call first? Start here: Best solar energy provider for homes.
The Bottom Line
Solar in 2026 costs about $15,000–$25,000 before incentives. The federal credit is gone for buyers, so plan for the full price. The smart play: compare quotes per watt, maximize your state incentives, and honestly compare buy vs. lease for your situation. Solar still pays off for many US homeowners—just use 2026 numbers, not 2025 ones.
This article is general info based on 2026 estimates. It is not financial or tax advice. Confirm current incentives with a licensed installer and a tax pro.
Frequently Asked Questions
How much do solar panels cost in the USA in 2026?A typical home system costs $15,000 to $25,000 before incentives, or about $2.50 to $3.50 per watt.
Is there still a 30% federal solar tax credit in 2026?Not for homeowners who buy. Section 25D ended on December 31, 2025. Only leases and PPAs (Section 48E) can still get a 30% credit, and the system owner claims it.
Did solar get more expensive in 2026?Yes, effectively. Sticker prices are similar, but cash and loan buyers now pay the full price.
What’s the cheapest way to go solar in 2026?For zero upfront cost, a lease or PPA. For the lowest lifetime cost, pay cash and stack state incentives.
How long until solar pays for itself in 2026?Often 8–12+ years. It depends on your rate, sun, and state programs.
