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.
Your Location
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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 — +~$9,500 (before incentives) · Backup power during outages
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30% Federal Solar Tax Credit (ITC) — Automatically Applied
The federal Investment Tax Credit gives you 30% of your total system cost back as a tax credit. Available through 2032. Battery storage also qualifies.
Solar by State — Top Markets 2026
State
Avg Rate ($/kWh)
State Incentive
Net Metering
Solar Potential
California
$0.271
None
Yes
Excellent
Hawaii
$0.386
$5,000
Yes
Excellent
New York
$0.216
$5,000
Yes
Good
Massachusetts
$0.265
$1,000
Yes
Good
Texas
$0.132
None
Yes
Excellent
Florida
$0.133
None
Yes
Excellent
Arizona
$0.122
$1,000
Yes
Excellent
New Mexico
$0.127
$6,000
Yes
Excellent
Illinois
$0.131
$4,000
Yes
Good
Connecticut
$0.244
None
Yes
Good
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.
📋
File for the 30% tax credit correctly
The ITC must be claimed on IRS Form 5695. It is a direct tax credit (not a deduction), meaning it reduces your tax bill dollar-for-dollar. If your credit exceeds your tax liability, you can roll it over to the next year.
🔋
Battery storage is worth it 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.
📐
Right-size your system
Oversizing your system beyond your usage wastes money, especially where net metering is not available. Aim to offset 90–100% of your annual usage, not more.
🏠
Solar adds home value
Studies show solar panels increase home value by 3–4% on average. In high-electricity-cost 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–$30,000 before incentives for a typical 6–10 kW residential system. After the 30% federal tax credit, most homeowners pay $10,500–$21,000. High-electricity states like California or Hawaii often see faster payback periods despite higher installation costs.
What is the 30% federal solar tax credit?
The Investment Tax Credit (ITC) gives you a tax credit equal to 30% of your total solar installation cost, including labor, equipment, and battery storage. It is claimed on IRS Form 5695 and directly reduces your federal tax bill. The 30% rate is locked in through 2032.
How long is the solar payback period?
Most homeowners see a payback period of 7–12 years depending on system cost, electricity rates, and available incentives. States with high electricity rates (CA, HI, CT, MA) typically have the shortest payback periods — sometimes under 6 years.
Does solar increase home value?
Yes. The National Renewable Energy Laboratory (NREL) found that solar panels increase home value by roughly $4 per watt of installed capacity. For a 8 kW system, that is approximately $32,000 in added home value. The premium varies by market.
What is net metering?
Net metering allows you to sell excess solar electricity back to your utility company, earning credits on your bill. Most states have net metering policies, but rules vary significantly. Some states offer full retail rate credits; others offer reduced wholesale rates.
Should I add battery storage?
Battery storage makes sense if: (1) your state has limited net metering, (2) you have frequent power outages, or (3) your utility has time-of-use pricing with high peak rates. In most states, a battery adds $8,000–$12,000 to system cost but also qualifies for the 30% federal tax credit.