2026 Federal Tax Credit + State Incentives Included
Solar Panel Cost Calculator 2026
Estimate your solar installation cost, 30% federal tax credit, state incentives, monthly savings, and payback period — adjusted for your state electricity rates and labor costs.
2026 National Averages
How Much Do Solar Panels Cost in 2026?
System Size
Gross Cost
After 30% Tax Credit
Avg Payback
4 kW (small home)
$10,000
$7,000
6–8 yrs
6 kW (medium home)
$15,000
$10,500
7–9 yrs
8 kW (large home)
$20,000
$14,000
7–10 yrs
10 kW (very large)
$25,000
$17,500
8–11 yrs
+ Battery Storage
+$9,500
+$6,650
7–10 yrs
The average solar installation costs $15,000–$25,000 before incentives. After the 30% federal tax credit, most homeowners pay $10,500–$17,500.
Your Location
Calculate By
We calculate the system size needed to offset your full bill based on your state's electricity rate and average sun hours.
Panel Type
Standard (Polycrystalline)
$2.5/W · 17% efficiency
10 yrs warranty
Premium (Monocrystalline)
$3/W · 20% efficiency
25 yrs warranty
Tier-1 (High Efficiency)
$3.6/W · 22% efficiency
25 yrs warranty
Roof Type
Asphalt Shingle
Standard install
Metal Roof
+15% install cost
Flat / Low Slope
+25% install cost
Tile Roof
+35% install cost
🔋 Add Home Battery Storage
Tesla Powerwall or equivalent — +~$9,500 (before incentives) · Backup power during outages
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30% Federal Solar Tax Credit (ITC) — Automatically Applied
The federal Investment Tax Credit gives you 30% of your total system cost back as a tax credit. Available through 2032. Battery storage also qualifies.
How to Maximize Your Solar Investment
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Get quotes from 3+ installers
Solar installation prices vary by 20–30% between companies for the same system. Always get at least 3 quotes. Use the federal tax credit as a negotiating point — installers will price more competitively.
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File for the 30% tax credit correctly
The ITC must be claimed on IRS Form 5695. It is a direct tax credit, reducing your tax bill dollar-for-dollar. If your credit exceeds your liability, you can roll it over to the next year.
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Battery storage pays in high-rate states
In states like California, Hawaii, or Massachusetts where electricity costs $0.20+/kWh, a home battery system pays off in 7–10 years. It also qualifies for the 30% federal tax credit.
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Right-size your system
Oversizing beyond your usage wastes money, especially where net metering is not available. Aim to offset 90–100% of your annual usage, not more.
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Solar adds home value
Studies show solar panels increase home value by 3–4% on average. In high-electricity states like California and New York, the premium can be 5–6%.
Frequently Asked Questions
How much do solar panels cost in 2026?
The average solar panel installation costs $15,000–$25,000 before incentives for a typical 6–10 kW system. After the 30% federal Investment Tax Credit (ITC), most homeowners pay $10,500–$17,500. High-electricity states like California and Hawaii often see faster payback despite higher upfront costs.
What is the 30% federal solar tax credit in 2026?
The Investment Tax Credit (ITC) gives you a tax credit equal to 30% of your total solar installation cost, including panels, labor, inverter, and battery storage. It is claimed on IRS Form 5695. The 30% rate is locked in through 2032, then drops to 26% in 2033.
How long is the solar payback period?
Most homeowners see a payback period of 7–11 years depending on system size, electricity rates, and incentives. States with high electricity rates like California ($0.27/kWh), Hawaii ($0.39/kWh), and Connecticut ($0.24/kWh) often achieve payback in 5–7 years.
How much can I save with solar in 25 years?
A typical 8 kW system saves $35,000–$65,000 over 25 years, assuming a 3% annual electricity rate increase. High-electricity states like Hawaii and California can see savings exceeding $80,000 over 25 years.
Does solar increase home value?
Yes. Studies show solar panels increase home value by approximately $4 per watt of installed capacity. A 8 kW system adds roughly $32,000 in home value. In high-rate states, the premium can reach 4–6% of home value.
What is net metering?
Net metering lets you send excess solar electricity back to the grid, earning bill credits from your utility. Most states require net metering at the retail rate. States without it (Mississippi, Oklahoma, West Virginia) make battery storage more valuable.
Should I add a battery to my solar system?
Battery storage makes sense if your state has limited net metering, your utility uses time-of-use pricing, or you experience frequent outages. A Tesla Powerwall costs $9,000–$13,000 before incentives and qualifies for the 30% federal tax credit.
How many solar panels do I need?
A typical 2,000 sq ft home uses 10,000–12,000 kWh per year and requires an 8–10 kW system, or about 20–25 standard panels. Use the bill-based calculator above — enter your monthly electric bill and we calculate the exact system size for your state.
Solar Cost by State — 2026
Solar panel costs and savings vary significantly by state. Hawaii and California have the highest electricity rates, making solar payback fastest. The table below shows estimated costs for a standard 8 kW premium system by state.
State
Gross Cost (8 kW)
Net After Incentives
Payback Period
25-yr Savings
California
$36K
$25K
6–8 yrs
$82,000+
Hawaii
$39K
$22K
5–7 yrs
$110,000+
New York
$35K
$19K
7–9 yrs
$68,000+
Massachusetts
$33K
$22K
6–8 yrs
$75,000+
Texas
$25K
$17K
8–10 yrs
$48,000+
Florida
$25K
$17K
8–10 yrs
$49,000+
Arizona
$25K
$17K
7–9 yrs
$52,000+
New Mexico
$24K
$11K
5–7 yrs
$55,000+
Illinois
$31K
$18K
8–10 yrs
$51,000+
Connecticut
$32K
$22K
6–8 yrs
$71,000+
Colorado
$28K
$20K
8–10 yrs
$53,000+
Washington
$31K
$22K
11–14 yrs
$38,000+
Estimates for 8 kW premium monocrystalline system, asphalt shingle roof, no battery. Net cost includes 30% federal ITC and any state-specific incentives.
Adding solar to a new build?
Installing solar during construction saves 10–20% vs retrofitting later. Pre-wire the roof and include conduit runs in your build plan to minimize future costs.
Most Popular
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Construction Cost Report
Full 14-category new home build cost for your zip code. Include solar pre-wiring and conduit runs upfront to save on future installation.