Home Solar Cost Guide

Is there still a solar tax credit for Gaithersburg homeowners in 2026?

The 30% federal credit is gone for 2026 installations. What survives for Gaithersburg: Maryland's own incentives and tax treatment - verified against state sources.

The 30% federal solar tax credit ended for installations finished after December 31, 2025 - Gaithersburg systems completed in 2026 get $0 from it.

Installed home solar for Gaithersburg homeowners averages about $2.58 a watt across the U.S. marketplace - roughly $30,960 for a 12 kW system before incentives.

Gaithersburg, Maryland has about 70,686 residents, and its solar quotes are built from system size, roof complexity and export rules - not the town name.

If a salesperson in Gaithersburg tells you a 30% federal tax credit applies to your 2026 installation, they are quoting a dead law. What may still exist: Maryland's own incentives and tax treatment, listed below, and lease/PPA arrangements where a company claims commercial credits - in which case the credit belongs to them, not you.

Leased and PPA systems deserve extra scrutiny in 2026: the sales pitch often bundles 'tax savings' that now accrue to the leasing company under separate commercial rules - not to you. Get every claimed saving in writing, attributed to a specific law, before signing a 20-25 year contract.

House at dusk with rooftop solar and warm window lights
Rooftop solar array in a clean grid on an asphalt shingle roof
Aerial view of a suburban block with several solar roofs
Clay tile roof with a solar array under strong southwestern sun

The 2026 numbers

System sizeInstalled price (marketplace avg)Notes
6 kW$15,480Small roof / low usage
8 kW$20,640Typical starter system
10 kW$25,800Family home with AC
12 kW$30,960Large home / EV charging
Home battery (optional)$12,000-$16,000Backup power + self-consumption
The U.S. marketplace average for installed home solar is about $2.58 per watt - roughly $31,000 for a typical 12 kW system before incentives.Source: EnergySage marketplace pricing data, continuously updated (early 2026)

Get solar quotes for Gaithersburg

These platforms collect bids from licensed installers so you can compare against the same spec. Prices come from installers, not from this site.

EnergySageMarketplace - multiple installer bids side by sideCompare quotes on EnergySage
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Disclosure: this is an independent guide. If you request quotes through a link here, the platform may pay this site a referral fee. That fee never changes your quotes.

The 30% federal tax credit is gone for 2026 installations

The federal Residential Clean Energy Credit (30%) was repealed by the One Big Beautiful Bill Act signed July 4, 2025. Per the IRS, the credit is not available for any property placed in service after December 31, 2025 - and the IRS counts the installation completion date, not the contract date.

The federal residential solar credit is not available for any property placed in service after December 31, 2025.Source: IRS - Residential Clean Energy Credit

Maryland rules that decide your payback

RuleMaryland status
Export compensation (net metering)Full retail net energy metering: systems up to 2 MW are eligible and the program stays open until statewide net-metered capacity reaches 3,000 MW; monthly excess means the customer "is billed only customer charges for that month," and accrued net excess generation is cashed out within 30 days after the billing cycle ending before the end of April each year at the generation/commodity portion of the rate averaged over the prior 12 months (Md. Code, Pub. Util. § 7-306).
State incentiveMaryland Solar Access Program (Maryland Energy Administration) — an income-eligible upfront rebate for residential solar PV; the FY27 round opened July 29, 2026 with applications due May 31, 2027 and up to $10 million available from the Strategic Energy Investment Fund. Maryland SRECs, earned under the state RPS solar carve-out, remain saleable by the homeowner.
Sales tax on the systemExempt
Property tax on added home valueExcluded

The old flat $1,000 Residential Clean Energy Rebate is no longer available for solar PV — MEA's current incentives page lists only the income-capped Maryland Solar Access Program for residential solar, so a household above the income limits (e.g. roughly $195,375 for a family of four in FY27) now gets no upfront state cash, only SRECs. Net metering also runs against a hard 3,000 MW statewide cap.

Full retail net energy metering: systems up to 2 MW are eligible and the program stays open until statewide net-metered capacity reaches 3,000 MW; monthly excess means the customerSource: Maryland regulator / utility filing

This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.

Solar panel surface showing cell grid and aluminum frame on a roof

What this means for Gaithersburg roofs

Beware of any 2026 payback estimate that looks as good as the 2025 ones: with the federal credit gone, a third of the old subsidy math vanished. If a sales projection has not gotten noticeably worse since 2025, it is hiding something - usually an inflated utility-rate escalation assumption.

This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.

Getting Gaithersburg quotes

Marketplace platforms collect bids from multiple MD installers against the same spec, which is the only clean way to compare - same roof, same size, different prices. Getting quotes is free and does not commit you to anything; prices come from the installers, never from this site.

This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.

Common questions

Is solar still worth it without the federal credit?

It depends mostly on your state's export rules and your daytime usage. Paybacks lengthened by roughly a third when the credit ended, but rising electricity rates and record-cheap hardware keep the math workable in states with decent export compensation - and marginal where exports pay avoided cost only.

Should I lease, get a PPA, or buy?

Buying keeps all savings and any incentives with you. Leases and PPAs put a company's equipment on your roof for 20-25 years, complicate a home sale, and in 2026 any tax benefits they advertise belong to the company under commercial rules - not to you. Read escalator clauses carefully.

Do I need a battery with my solar?

Not necessarily. Under full retail net metering, the grid effectively stores your surplus for free. Batteries earn their $12,000-16,000 price where export rates are low, outages are common, or time-of-use rates make evening self-consumption valuable.

Is there still a federal solar tax credit in 2026?

No. The 30% Residential Clean Energy Credit was repealed effective for systems placed in service after December 31, 2025, per the IRS. Only systems finished by the end of 2025 qualified. State-level incentives are separate and some survive - check the state page in this guide.

Is my roof even suitable for solar?

Three things decide it: orientation (south-facing is best in the U.S., east-west workable), shade (trees or taller buildings across midday hours can sink the math), and roof age (if the shingles have under 10 years left, reroof first - removing and reinstalling panels later costs thousands). Any honest installer assesses all three before quoting a number.

Get solar quotes for Gaithersburg

These platforms collect bids from licensed installers so you can compare against the same spec. Prices come from installers, not from this site.

EnergySageMarketplace - multiple installer bids side by sideCompare quotes on EnergySage
ModernizeMatches you with vetted installers in your areaGet matched with local installers

Disclosure: this is an independent guide. If you request quotes through a link here, the platform may pay this site a referral fee. That fee never changes your quotes.

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National price ranges and what moves them