Is there still a solar tax credit for Washington homeowners in 2026?
The 30% federal credit is gone for 2026 installations. What survives for Washington: District of Columbia's own incentives and tax treatment - verified against state sources.
The 30% federal solar tax credit ended for installations finished after December 31, 2025 - Washington systems completed in 2026 get $0 from it.
Installed home solar for Washington homeowners averages about $2.58 a watt across the U.S. marketplace - roughly $30,960 for a 12 kW system before incentives.
Washington, District of Columbia has about 702,250 residents, and its solar quotes are built from system size, roof complexity and export rules - not the town name.
The federal Residential Clean Energy Credit - the 30% one every solar ad still quotes - was repealed by the One Big Beautiful Bill Act signed July 4, 2025. Per the IRS, it is not available for any system placed in service after December 31, 2025, and 'placed in service' means the installation completion date, not the contract date.
If a salesperson in Washington tells you a 30% federal tax credit applies to your 2026 installation, they are quoting a dead law. What may still exist: District of Columbia'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.
The 2026 numbers
| System size | Installed price (marketplace avg) | Notes |
|---|---|---|
| 6 kW | $15,480 | Small roof / low usage |
| 8 kW | $20,640 | Typical starter system |
| 10 kW | $25,800 | Family home with AC |
| 12 kW | $30,960 | Large home / EV charging |
| Home battery (optional) | $12,000-$16,000 | Backup power + self-consumption |
Get solar quotes for Washington
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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The federal Residential Clean Energy Credit (30%) was repealed by the One Big Beautiful Bill Act signed July 4, 2025.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.
District of Columbia rules that decide your payback
| Rule | District of Columbia status |
|---|---|
| Export compensation (net metering) | Net energy metering is available District-wide: D.C. Code § 34-1518 directs the Public Service Commission to run a program that "affords eligible customer-generators the opportunity to participate in net energy metering," requires bidirectional metering, bills the customer only for net electricity supplied, and leaves the specific credit rate and settlement terms to Commission rules (15 DCMR Ch. 9). |
| State incentive | SRECs earned under the District's Renewable Portfolio Standard solar carve-out are the main incentive — D.C. Code § 34-1432 requires electricity suppliers to source "not less than 4.3%" of retail sales from solar in 2025, rising to "not less than 9.0%" by 2032 and "not less than 15.0%" in 2041 and thereafter, which sustains the District's SREC market. DOEE's Solar for All separately provides solar benefits to income-qualified households, targeting 100,000 low- to moderate-income households with 50% bill reductions by 2032. |
| Sales tax on the system | Not exempt - taxed like any purchase |
| Property tax on added home value | No exclusion on record |
DC's aggressive solar carve-out (rising to 15% of all retail electricity sales by 2041) is what makes District SRECs valuable, but the income is not fixed — DOEE cautions that "SREC values fluctuate based on supply and demand," so a payback estimate built on today's SREC price can slip badly if prices fall as more systems come online. The District also offers no tax incentives of its own.
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.
What this means for Washington 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 Washington quotes
Before requesting quotes, have your last 12 months of electricity bills handy - system sizing should follow your real usage, not a salesperson's template. A bid sized far above your usage is a margin play, especially now that surplus export pays less in most states.
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
What is net metering and why does it decide everything?
It is the rule for how your utility credits electricity you export. Full retail net metering credits exports at the same rate you pay - the grid works like a free battery. Net billing or avoided-cost rules pay far less per exported kWh, which lengthens payback and strengthens the case for a home battery.
What happens if my installer goes out of business?
Panel and inverter warranties come from the manufacturers and survive, but the workmanship warranty usually dies with the company. That is a real risk in the post-credit shakeout - prefer installers with years of local history, and get manufacturer-backed workmanship coverage where offered.
Does solar raise my property taxes?
It depends on the state - many exempt solar's added home value from property tax, others do not, and some exemptions have expiration dates. This guide's state page lists the verified rule and source for your state.
How long do solar panels actually last?
Panels are typically warrantied for 25 years of production and commonly outlive it, losing about 0.5% output per year. Inverters are the component that usually needs replacement - typically once, around year 12-15, at a few thousand dollars.
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.
Get solar quotes for Washington
These platforms collect bids from licensed installers so you can compare against the same spec. Prices come from installers, not from this site.
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.