Rooftop solar installation typically costs about $23,100, with most projects ranging from $19,100 to $23,800 depending on system size and location. Under current federal law, the Residential Solar Tax Credit (ITC) ended for customer-owned systems on December 31, 2025. Solar Costs Have Reached Historic Lows: Average residential solar costs have dropped to $3. 30 per watt in 2025, representing a 60% decrease from 2010 levels. Combined with the 30% federal tax credit extended through 2032, most homeowners can achieve payback periods of 6-12 years with 25+. Most homeowners spend between $12,600 and $33,376 to install a complete residential solar system in 2026, with the national average at $19,873 before incentives. Get solar power system costs based on your location, roof, power usage, and current local offers. While that price tag seems steep, the electricity. Our estimator shows how many solar panels your home needs We generate an online cost and savings estimate You choose how many solar companies send you an exact price by email or text Click on your state for solar panels cost localized to your city or use the solar calculator above to see the live. How much does it cost to install and manage solar panels? According to studies by the U.