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In 2026, the average installed cost of residential solar in the US is $2.80 to $3.20 per watt — meaning a typical 8 kW home system runs $22,000 to $26,000 before state and local incentives. The federal residential tax credit (Section 25D) expired December 31, 2025, but state programs, net metering, and the lease/PPA route still make solar a strong investment in most of the country. To find out exactly what solar costs in your area, call (855) 427-0058 for a free, no-obligation quote.
Prices vary significantly by state, system size, roof type, and installer. This guide breaks down every factor that influences what you’ll pay, what incentives are still available in 2026, and how to calculate your personal payback period.
Contents
- 1 How Much Do Solar Panels Cost in 2026?
- 2 What’s Included in the Installation Price?
- 3 Solar Panel Costs by State
- 4 What Affects the Cost of Solar Panels?
- 5 Solar Incentives Available in 2026
- 6 How Much Will Solar Save You?
- 7 Should I Go Solar Without the Federal Tax Credit?
- 8 How Should You Pay for Solar?
- 9 Frequently Asked Questions
- 9.1 How much do solar panels cost per watt in 2026?
- 9.2 Is the federal solar tax credit still available in 2026?
- 9.3 How long is the payback period for solar panels in 2026?
- 9.4 Are there state incentives for solar in 2026?
- 9.5 How many solar panels does the average home need?
- 9.6 Should I buy or lease solar panels in 2026?
- 10 Summing Up
How Much Do Solar Panels Cost in 2026?
The national average installed cost is approximately $2.80 to $3.20 per watt (all-in: panels, inverter, racking, wiring, labor, permits). The Solar Energy Industries Association (SEIA) reported a Q1 2026 residential average of $3.21/W. Competitive bidding platforms like EnergySage, which help reduce installer marketing costs, report marketplace averages closer to $2.60/W.
Here’s what that translates to by system size for a typical US home:
| System Size | Avg $/Watt | Before Incentives | Typical For |
|---|---|---|---|
| 4 kW | $2.89/W | $11,560 | Small home, low usage |
| 6 kW | $2.78/W | $16,680 | Average home, moderate usage |
| 8 kW | $2.70/W | $21,600 | Most US homes (≈10,500 kWh/yr) |
| 10 kW | $2.62/W | $26,200 | Larger home, EV charging |
| 12 kW | $2.58/W | $30,960 | Large home, high usage / battery |
| 15 kW | $2.52/W | $37,800 | Large home + EV + battery |
Larger systems cost less per watt — similar to buying in bulk. The average US home uses about 10,500 kWh per year, which typically requires an 8–10 kW system depending on your location’s peak sun hours.
What’s Included in the Installation Price?
Solar panels are just one piece of the puzzle. Here’s how a typical installed system cost breaks down, based on data from the National Renewable Energy Laboratory (NREL):
| Component | % of Total Cost | Notes |
|---|---|---|
| Solar panels | 12% | Monocrystalline PERC/TOPCon standard |
| Solar inverter(s) | 10% | String, micro, or hybrid |
| Racking and mounting | 3% | Roof attachment hardware |
| Electrical wiring | 9% | Conduit, MC4 connectors, panel upgrades |
| Supply chain / sales tax | 11% | Varies by state |
| Installation labor | 7% | Typically 1–3 days on-site |
| Permits and interconnection | 8% | Varies by municipality |
| Installer overhead, sales, and profit | 40% | This is where quotes vary most |
Notice that installer overhead, sales, and profit account for roughly 40% of the total price. This is why getting 3+ competing quotes can save you $3,000–$6,000 on the same system.
Solar Panel Costs by State
State-level costs vary based on local labor rates, permitting complexity, average system size, and how competitive the local installer market is. The table below shows average cost per watt and starting installed cost for a 6 kW system before any state or local incentives.
| State | Avg Cost/Watt | 6 kW System Cost |
|---|---|---|
| Alabama | $2.45/W | $14,700 |
| Alaska | $2.41/W | $14,460 |
| Arizona | $2.30/W | $13,800 |
| Arkansas | $2.63/W | $15,780 |
| California | $2.45/W | $14,700 |
| Colorado | $2.65/W | $15,900 |
| Connecticut | $2.67/W | $16,020 |
| Delaware | $2.63/W | $15,780 |
| Florida | $2.14/W | $12,840 |
| Georgia | $2.49/W | $14,940 |
| Hawaii | $2.67/W | $16,020 |
| Idaho | $3.04/W | $18,240 |
| Illinois | $3.00/W | $18,000 |
| Indiana | $2.77/W | $16,620 |
| Iowa | $3.25/W | $19,500 |
| Kansas | $2.63/W | $15,780 |
| Kentucky | $2.55/W | $15,300 |
| Louisiana | $2.35/W | $14,100 |
| Maine | $2.93/W | $17,580 |
| Maryland | $2.63/W | $15,780 |
| Massachusetts | $3.05/W | $18,300 |
| Michigan | $2.92/W | $17,520 |
| Minnesota | $3.22/W | $19,320 |
| Mississippi | $2.30/W | $13,800 |
| Missouri | $2.51/W | $15,060 |
| Montana | $2.60/W | $15,600 |
| Nebraska | $2.83/W | $16,980 |
| Nevada | $2.49/W | $14,940 |
| New Hampshire | $2.89/W | $17,340 |
| New Jersey | $2.73/W | $16,380 |
| New Mexico | $2.68/W | $16,080 |
| New York | $2.76/W | $16,560 |
| North Carolina | $2.34/W | $14,040 |
| North Dakota | $2.42/W | $14,520 |
| Ohio | $2.71/W | $16,260 |
| Oklahoma | $2.61/W | $15,660 |
| Oregon | $2.48/W | $14,880 |
| Pennsylvania | $2.57/W | $15,420 |
| Rhode Island | $2.75/W | $16,500 |
| South Carolina | $2.54/W | $15,240 |
| South Dakota | $2.39/W | $14,340 |
| Tennessee | $3.24/W | $19,440 |
| Texas | $2.23/W | $13,380 |
| Utah | $2.66/W | $15,960 |
| Vermont | $2.77/W | $16,620 |
| Virginia | $2.49/W | $14,940 |
| Washington | $2.53/W | $15,180 |
| West Virginia | $2.64/W | $15,840 |
| Wisconsin | $3.11/W | $18,660 |
| Wyoming | $2.57/W | $15,420 |
Source: EnergySage Marketplace data, updated July 2026. Figures represent 6 kW systems before any state or local incentives. Multiply $/watt by your system size in watts for a custom estimate.
What Affects the Cost of Solar Panels?
System Size
The more panels you install, the lower your per-watt cost — but your total bill goes up. The right size for your home is driven by your annual electricity usage (check your utility bills), your roof’s sun exposure, and whether you plan to add an EV or battery. Oversizing by 10–20% is common and often cost-effective given the falling marginal cost at larger sizes.
Roof Type and Complexity
A simple south-facing single-slope roof is the cheapest to install on. Add dormers, multiple roof planes, skylights, or steep pitches and you can add $1,000–$4,000 in labor. If your roof is more than 10 years old, most installers recommend replacing it before installing solar — removal and reinstallation later costs $1,500–$3,500.
Equipment Tier
Panel efficiency and brand affect cost. Entry-tier monocrystalline panels from Longi, Canadian Solar, or Risen run $0.30–$0.45/W for the panels themselves. Premium panels — REC Alpha, Maxeon, Q CELLS — run $0.50–$0.75/W. For inverters, string inverters (SolarEdge, SMA) are the most affordable; microinverters (Enphase) add $0.15–$0.20/W but boost output on shaded or complex roofs. The performance difference rarely justifies maximum price tiers for standard roofs.
Electrical Panel Upgrade
If your home has a 100-amp panel, you’ll likely need to upgrade to 200 amps before going solar. That adds $1,500–$3,000. Homes built after 1990 almost always have 200-amp service already.
Local Labor and Permit Costs
Permit fees vary from $150 in rural counties to $1,500+ in some California municipalities. Interconnection fees (connecting to the grid) add another $100–$500. Labor rates in markets like Hawaii, Massachusetts, and New York are higher than in Texas or the Southeast.
Solar Incentives Available in 2026
Federal Residential ITC — Expired
The 30% federal residential solar tax credit (Section 25D of the tax code) expired December 31, 2025. The One Big Beautiful Bill Act, signed July 4, 2025, eliminated it seven years ahead of the original 2032 schedule. If you purchased a solar system that was placed in service on or after January 1, 2026, you do not qualify for the federal credit.
The Lease/PPA Route Still Carries Federal Benefits
Homeowners who finance solar through a lease or Power Purchase Agreement (PPA) can still access federal incentives — indirectly. Under Section 48E of the tax code (the commercial clean energy credit), solar companies that own the system and lease it to you can claim a 30% tax credit on the installation. This is active through 2027. A competitive solar provider should pass these savings through to you as lower monthly payments or a reduced PPA rate. If a company is quoting you a lease or PPA in 2026 without mentioning the 48E pass-through, ask about it explicitly.
State Tax Credits
Many states still offer their own solar incentives, independent of the federal credit:
| State | Credit / Incentive | Max Value |
|---|---|---|
| New York | 25% state tax credit | $5,000 |
| South Carolina | 25% state tax credit | $35,000 |
| Hawaii | 35% state tax credit | $5,000 |
| Massachusetts | 15% state tax credit + SMART program | $1,000 + production payments |
| Maryland | State grant + property tax exemption | $1,000 grant |
| Oregon | Residential Energy Tax Credit | Varies |
| Connecticut | Residential Solar Investment Program | Performance-based |
| New Jersey | SREC-II program (performance credits) | ~$85–$90/MWh generated |
Check the Database of State Incentives for Renewables and Efficiency (DSIRE) for a complete, up-to-date list of incentives in your state.
Property Tax Exemptions
Most states exempt solar installations from property tax assessments — meaning the added home value from solar doesn’t increase your annual property tax bill. Over 30 states have this provision.
Net Metering
Net metering lets you sell excess solar electricity back to your utility at or near retail rates, effectively using the grid as a battery. Availability and compensation rates vary significantly by state — California’s NEM 3.0 pays much lower rates than the older NEM 2.0, while states like New York, Massachusetts, and New Jersey still offer favorable net metering terms.
How Much Will Solar Save You?
Despite the loss of the federal tax credit, solar remains a strong financial decision in most US markets. EnergySage data shows most homeowners save $41,000 to $155,000 over 25 years — the wide range reflects differences in electricity rates, sun hours, and system size.
Payback Period in 2026
Without the federal ITC, the average solar payback period in the US is 8 to 12 years. States with high electricity rates (California, New York, Massachusetts, Connecticut, Hawaii) still see payback periods as short as 5–7 years because the electricity savings are larger. States with low electricity rates (Louisiana, Washington, Idaho) take longer — 12–15 years.
After payback, the system generates free electricity for the remaining 13–17 years of its 25-year warranty life. That’s the period where solar really pays off.
Protection Against Rate Increases
US electricity rates have increased an average of 2.5–3% per year over the past decade. Solar locks in your cost of electricity at the installation price. If utility rates continue rising, every rate increase makes your solar investment more valuable — shortening your effective payback period year by year.
Should I Go Solar Without the Federal Tax Credit?
For most homeowners, yes — but the math matters more now than it did before 2026. Here’s how to evaluate it for your situation:
Solar makes clear sense if: your state has strong net metering, your electricity rate is above $0.14/kWh, you plan to stay in the home for at least 10 years, and/or your state offers its own tax credit.
The lease/PPA route deserves a fresh look if: you don’t have significant state tax liability to offset, you prefer $0 upfront, or you want to benefit from the 48E commercial credit (available through 2027). You’ll save less than ownership over 25 years, but you’ll save from day one with no upfront cost.
Wait if: you’re planning to move within 5 years and your buyer market is uncertain about solar, or your roof needs replacement in the next few years.
How Should You Pay for Solar?
Cash Purchase
Paying cash gives you the best 25-year return — no interest payments, and you own the system outright. You receive any state tax credits directly. The main drawback is the large upfront cost ($15,000–$30,000+) and the fact that you can no longer offset it with the federal credit.
Solar Loan
Solar loans let you own the system with little or no money down and monthly payments that are often lower than your current electric bill. You’re still the owner, so state incentives and net metering credits apply to you. Interest rates in 2026 range from 4.9% to 8.9% APR for qualified buyers. Watch out for dealer fee loans (some solar loans embed a 15–30% dealer fee that inflates your loan principal — ask for the explicit dealer fee amount before signing).
Solar Lease or PPA
A lease or PPA means a solar company installs panels on your roof and you pay them a monthly rate for the electricity generated (PPA) or a flat lease payment. You don’t own the system, but you pay $0 upfront and savings begin immediately. The installer claims the 48E commercial credit (active through 2027) and should pass savings through as lower rates. Long-term savings are lower than ownership — typically 10–20% of your bill vs 80–100% with ownership — but it’s the accessible option for homeowners who can’t finance a purchase.
Frequently Asked Questions
How much do solar panels cost per watt in 2026?
The national average installed cost for residential solar is approximately $2.80 to $3.20 per watt in 2026 (all-in: panels, inverter, racking, wiring, labor, permits). SEIA reported a Q1 2026 average of $3.21/W. Competitive platforms like EnergySage report marketplace averages around $2.60/W because they help reduce installer marketing costs. Your actual price depends on system size, location, equipment choice, and roof complexity.
Is the federal solar tax credit still available in 2026?
No — the 30% federal residential solar tax credit (Section 25D) expired December 31, 2025. The One Big Beautiful Bill Act, signed July 4, 2025, eliminated it ahead of schedule. However, if you finance solar through a lease or PPA, the installer can still claim the 30% commercial credit (Section 48E, active through 2027) and should pass those savings through to you as lower rates.
How long is the payback period for solar panels in 2026?
Without the federal tax credit, the average payback period in the US is 8 to 12 years, depending on your state’s electricity rates, sun hours, and available state incentives. High-rate states (California, Massachusetts, New York, Connecticut, Hawaii) see payback as short as 5–7 years. After payback, the system generates free electricity for the remaining life of the panels (25+ years).
Are there state incentives for solar in 2026?
Yes — many states offer their own incentives that are independent of the now-expired federal credit. New York offers a 25% state tax credit (up to $5,000), South Carolina offers 25% (up to $35,000), Hawaii offers 35% (up to $5,000), and Massachusetts offers 15% plus production-based SMART program payments. Most states also offer property tax exemptions on solar installations and have net metering programs. Check DSIRE (dsireusa.org) for your state’s current programs.
How many solar panels does the average home need?
The average US home uses about 10,500 kWh per year and needs approximately 22–28 solar panels rated at 400W each (an 8.8–11.2 kW system) to cover 100% of its electricity. The exact number depends on your location’s peak sun hours — a home in Arizona needs fewer panels than the same home in Minnesota — and your roof’s orientation and shading.
Should I buy or lease solar panels in 2026?
With the federal residential ITC gone for purchased systems, the lease/PPA route has become more attractive for some homeowners. Ownership (cash or loan) still gives the best 25-year return and lets you capture state tax credits directly. But if you can’t finance a purchase, or your state has minimal incentives, a well-structured lease or PPA with a competitive provider passing through the 48E commercial credit is a reasonable alternative. Get quotes for both and compare the 25-year net savings.
Summing Up
The average residential solar system costs $2.80–$3.20 per watt installed in 2026 — roughly $22,000–$26,000 for an 8 kW system before state and local incentives. The 30% federal residential tax credit expired December 31, 2025, but homeowners financing through a lease or PPA can still access federal benefits via the 48E commercial credit through 2027. State tax credits, net metering, and property tax exemptions remain in place in most states.
Despite the loss of the federal credit, solar still pays for itself in most US markets — in 8 to 12 years on average, after which you get free electricity for another 13–17 years. The best way to know your specific numbers is to get quotes from 3+ local installers. Call (855) 427-0058 for a free, no-obligation solar assessment for your home.
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