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Cost & financing·2026 prices, state by state·Before and after the credit

Solar panel cost & financing

What a residential system actually costs in 2026 — before and after the federal credit — plus how loans, leases and PPAs compare, and how long it takes to break even in your state.

$19k–$26k8 kW before credit
~$15kTypical net cost
7–12 yrsPayback range

Average 2026 cost

A typical 8 kW residential system installed in the United States runs between $19,000 and $26,000 before incentives — roughly $2.40 to $3.25 per watt. After the 30% federal credit, most homeowners land near $15,000. Your number moves with roof complexity, panel tier, and how much your utility charges per kilowatt-hour.

Below, we break the price down line by line, then show what changes state to state. If you already know your roof, the fastest route to a real figure is a personalised quote.

System sizeBefore creditAfter 30% credit
6 kW · small home$15,600 – $19,500$10,900 – $13,650
8 kW · typical$19,200 – $26,000$13,440 – $18,200
10 kW · large home$24,000 – $32,500$16,800 – $22,750
12 kW · high usage$28,800 – $39,000$20,160 – $27,300
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Financing options

Four ways to pay, and they are not equivalent. Cash gives the best lifetime return; a loan keeps the tax credit in your pocket; leases and PPAs hand the credit to the installer in exchange for zero money down.

Cash purchase
Best lifetime return. You keep the 30% credit and every kilowatt-hour after payback.
Solar loan
Zero or low money down, you still claim the credit. Watch for dealer fees baked into the rate.
Lease
Fixed monthly payment, installer owns the system and takes the credit. Simple, lowest upside.
PPA
You buy the power, not the panels, at a set rate per kWh. Check the annual escalator clause.

Frequently asked

Does the 30% federal tax credit still apply in 2026?
Yes. The residential clean energy credit covers 30% of total system cost, including battery storage installed at the same time.
How much do solar panels cost per watt?
Nationally, $2.40 to $3.25 per watt installed before incentives. Labour-heavy states sit at the top of that range.
Do solar panels increase home value?
Owned systems typically add value; leased systems usually do not, and can complicate a sale.
How long until solar pays for itself?
Seven to twelve years in most states, driven mainly by your utility rate and local incentives.
Is financing worth it if I can pay cash?
Only if your loan rate is below what the cash would earn elsewhere. Compare the total interest against the credit timing.

Everything in this pillar

Twelve articles, grouped by what you're trying to work out.

What it costs

4 articles Start here if you have no number yet
L3How much do solar panels cost: complete breakdown12 min L2Solar panel cost by state (all 50 analysed)15 min L2Cost per watt explained6 min L2Hidden solar costs installers don’t mention8 min

How to pay for it

3 articles Cash, loans, leases and PPAs
L2Loans vs leases vs PPAs explained11 min L3Best solar loans in 20269 min L2Zero-down solar: what’s the catch?7 min

Incentives & rebates

3 articles Federal, state and utility programs
L1Federal solar tax credit 2026: complete guide10 min L2State solar incentives by state14 min L2Net metering: how you get paid for exports9 min

Payback & ROI

2 articles When it turns into savings
L3Solar ROI: how long to break even?13 min L2Is solar worth it in your state?11 min
Check your savings — 90 seconds Get quote