How Much Do Solar Panels Cost in 2026 Without the Federal Tax Credit?

The short answer

Most U.S. homeowners pay roughly $2.50 to $3.50 per watt for a fully installed rooftop solar system in 2026, before any incentives. For a typical 8 kW system, that is about $20,000 to $28,000. The federal 30% tax credit for homeowners is gone, so that is close to what you pay unless a state, local or utility program helps.

The low end comes from competitive quote data. EnergySage marketplace quotes average around $2.58 per watt in early 2026, while Lawrence Berkeley National Laboratory’s installed-price data puts the national median for cash purchases near $3.50 per watt (NRG Clean Power, citing EnergySage and LBNL). Both numbers are real. They measure different things, which is why your own quotes matter more than any average.

What changed on January 1, 2026

For years, homeowners who bought a system could claim a 30% federal credit under Section 25D. That credit expired on December 31, 2025, after the One Big Beautiful Bill Act ended it early (SolarReviews). If you buy a system with cash or a loan and it goes into service in 2026, you cannot claim it, and you do not file Form 5695 for it.

One federal route remains in a different form. The business credit under Section 48E still applies to third-party-owned systems, such as leases and power purchase agreements (PPAs), through the end of 2027 (Solar.com). The installer claims that credit, not you, and some installers price their lease payments lower because of it.

In plain numbers, a system that cost $30,000 used to come back as a $9,000 credit. In 2026 that $9,000 is simply not there for a homeowner who buys.

Solar panel cost by system size in 2026

The table shows two views of the same market: typical competitive quotes (EnergySage marketplace data) and a more conservative figure of about $3.00 per watt, which is closer to what many buyers see on a standard installer quote.

System size	Typical home	Competitive quotes (~$2.50–$2.86/W)	At about $3.00/W
4 kW	Small home, low usage	$11,440	$12,000
5 kW	Small to mid-size home	$13,750	$15,000
6 kW	Average home	$15,960	$18,000
8 kW	Larger home	$20,880	$24,000
10 kW	Large home or EV charging	$25,500	$30,000
12 kW	Large home plus EV or pool	$30,240	$36,000

Competitive-quote figures are from EnergySage marketplace data as reported by NRG Clean Power. The $3.00 column is simple arithmetic (system size in watts times $3.00). Prices per watt tend to fall as systems get bigger, because permitting, design and crew time are spread across more panels.

The average system installed in the U.S. is about 12 kW, which lands near $30,500 before incentives on marketplace data.

Solar cost and payback calculator

Change the numbers to match your quote and your bill.

System size (kW) Price per watt ($/W, from your quote) State, local and utility incentives ($) Estimated yearly savings on your electric bill ($)

Cost before incentives–

Cost after incentives–

Estimated payback–

Estimate only. Your savings depend on your electricity rate, your usage and your utility’s rules for exported power. There is no federal tax credit for homeowner-owned systems installed in 2026.

How to calculate your own number

The formula is simple:

System cost = system size in watts × price per watt

For example, if your home needs an 8 kW system and your quote is $2.61 per watt, that is 8,000 × $2.61 = $20,880, the pre-incentive contract price.

Not sure how big a system you need? Our guide to how many solar panels you need shows how to size it from your electric bill.

Why your quote may be higher or lower than the average

Two homes of the same size can get very different prices. These are the factors that move the number most:

Your state and local labor costs. Boston-area labor, for example, runs well above the national average, so Massachusetts is one of the most expensive major markets per watt.
Roof type and condition. Complex roofs, steep pitches and tile roofs cost more to work on, and an old roof may need replacing first.
Equipment. Premium panels, microinverters and optimizers cost more than basic string-inverter setups.
Extras. A main electrical panel upgrade, ground mounting, trenching or an EV charger can add thousands.
How you pay. Cash price and loan price are often different. Loans can carry dealer fees built into the price, so ask for the cash price in writing and compare it to the loan price.
The installer. Overhead, sales costs and margins vary a lot. Competitive quotes are the main reason marketplace averages come in lower.

The panels themselves are only part of it. Premium panels typically cost 30 to 50 cents per watt for the hardware alone (Solar.com). The rest of the price is the inverter, racking, wiring, labor, permits and the installer’s overhead and profit.

A state example: California

EnergySage’s local data for California (updated August 2026) put the cost of an 8.92 kW system, the average size in the state, at about $22,049 before incentives, with a range of roughly $18,700 to $25,400 (EnergySage). That works out to a bit under $2.50 per watt, which is below the national marketplace average. California shows how much state and local conditions shape the price.

What about solar plus a battery?

Batteries are the fastest-growing add-on, especially in states where utilities pay little for the power you send back to the grid. Home batteries in 2026 run roughly $400 to $700 per kilowatt-hour installed, and utility incentive programs can cut that substantially in some places (Longren). By that math, a battery of about 13 kWh would land roughly in the $5,000 to $9,500 range before extras and local incentives. Treat that as a starting point and get itemized quotes, because installation complexity changes the total.

Standalone homeowner-owned batteries no longer qualify for the old 25D credit either. Third-party-owned residential batteries may still qualify under the commercial credit, so ask the installer how a lease or PPA with storage would work in your case.

Does solar still pay off without the credit?

Usually yes in the right places, but it takes longer. EnergySage estimated that losing the credit would make the average payback about 43% longer, adding roughly four years (EnergySage). Wood Mackenzie, in an analysis quoted by EnergySage, expected the average payback to move from about seven to about nine years (EnergySage). Other analyses give wider ranges, and payback depends heavily on where you live.

The three things that matter most are:

Your electricity rate. Higher rates mean each kilowatt-hour you produce is worth more.
How your utility credits the power you export. Full retail net metering pays far better than export rates based on avoided cost.
Your net cost after state, local and utility incentives.

The basic payback formula is:

Payback (years) = net system cost ÷ annual electricity savings

As an illustration only: if a $20,880 system saves you $2,000 a year, payback is about 10.4 years. If your savings are $2,600 a year, it drops to about 8 years. Your own savings number comes from your bill, not from an average, so see our payback calculator before deciding.

Ways to lower the cost in 2026

Get at least three quotes. Quote data shows that competitive bidding is where most of the gap between the average and the high end comes from.
Check state and local incentives first. With the federal credit gone, state credits, rebates, property tax exemptions and utility programs now drive the economics. See solar incentives by state.
Compare buying with leasing or a PPA. Leases and PPAs keep a federal credit alive for the installer, which can lower your monthly payment, but you will not own the system and the contract terms matter. Read lease vs buy in 2026 before signing.
Compare cash and loan prices. Ask for both in writing.
Right-size the system. Bigger is not always better, especially if your utility pays little for exports.
Skip add-ons you do not need. Ground mounts and electrical upgrades add cost; some roofs and panels do not need them.
Check the roof first. If it needs replacing in the next few years, do it before or with the installation to avoid paying to remove panels later.

Frequently asked questions

Is there still a federal tax credit for solar panels in 2026? Not for homeowners who buy their system. The Section 25D credit expired on December 31, 2025. A business credit under Section 48E still applies to leases and PPAs through the end of 2027, claimed by the installer.

How much does a single solar panel cost? The panel hardware is only part of the price. A typical 400-watt premium panel costs roughly $120 to $200 on its own, but the installed price is far higher once the inverter, wiring, labor and permits are included.

How much does a 6 kW system cost without the tax credit? Roughly $16,000 to $18,000 at the typical per-watt prices above, before state and utility incentives.

Are solar panels getting cheaper? Panel hardware prices have fallen a lot over the past decade, but installation, labor and overhead make up most of the bill and do not drop as quickly. Prices also depend on equipment tariffs and rules that can change, so we do not predict future prices.

Is solar worth it without the tax credit? It depends on your electricity rate, your utility’s export rules and your state’s incentives. In high-rate states with strong incentives it can still pay back in under ten years, while in low-rate states with weak export credits it can take much longer. Run your own numbers before deciding.

Bottom line

Without the federal credit, plan on roughly $2.50 to $3.50 per watt, or about $20,000 to $28,000 for an 8 kW system, before state and local help. Compare several quotes, check what your state and utility offer, and judge the decision by your own payback, not by a national average.

This article is for information only and is not tax, financial or installation advice. Prices and incentives change; check your state, utility and installer for current terms. This site may earn a commission if you request quotes through links on this page.