Solar incentives and tax credits available in Washington

Solar Incentives in Washington

Complete guide to solar tax credits, rebates, and incentive programs available in Washington for 2026.

%

Federal Solar Investment Tax Credit (ITC)

30% of total system cost

Washington homeowners can claim the 30% federal ITC. With no state income tax, the federal credit is the primary tax benefit.

Washington State Solar Incentives

Sales Tax Exemption

Sales Tax

Washington exempts solar energy systems from the state's sales and use tax.

100% state sales tax exemption

Washington State Clean Energy Transformation Act

Net Metering

Washington's clean energy policies support net metering and distributed solar generation.

Retail rate net metering credits

Net Metering in Washington

Available

Washington requires utilities to offer net metering for residential solar systems up to 100 kW. Customers receive credits at the full retail rate.

Solar Renewable Energy Credits (SRECs) in Washington

Not Available

Washington's previous solar production incentive program has ended. The state now relies on net metering and the federal ITC as primary solar incentives.

Tax Exemptions in Washington

Property Tax Exemption
No property tax exemption for solar systems
Sales Tax Exemption
Solar equipment purchases are exempt from state sales tax

How to Claim Solar Incentives in Washington

  1. Install your solar system: Work with a qualified solar installer to design and install your system.
  2. Claim the federal ITC: File IRS Form 5695 with your federal tax return to claim the 30% tax credit.
  3. Apply for state programs: Contact your state energy office or utility to apply for any available state incentives.
  4. Set up net metering: Contact your utility in Washington to set up net metering and start earning credits.
  5. Keep records: Save all receipts, contracts, and permits for tax filing and warranty purposes.

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Solar Incentives FAQ - Washington

Washington homeowners have access to several solar incentives that can significantly reduce installation costs. All Washington residents can claim the 30% federal Investment Tax Credit (ITC), which alone can save thousands of dollars. Depending on your location in Washington, you may also qualify for state tax credits, utility rebates, Solar Renewable Energy Credits (SRECs), property tax exemptions, and sales tax exemptions. The specific incentives available to you depend on your utility company, municipality, and the current status of Washington's solar programs. Contact a local Washington solar installer for a personalized incentive analysis.

Net metering availability in Washington depends on your specific utility company and the state's current policies. Net metering allows you to receive credits on your electricity bill when your solar panels produce more energy than your home consumes. In states and utilities that offer net metering, these credits can significantly improve your solar savings and shorten your payback period. Washington's net metering policies may include specifics about credit rates, system size limits, and annual true-up periods. Check with your Washington utility company or a local solar installer for the current net metering terms available to you.

Whether Washington has a Solar Renewable Energy Credit (SREC) market depends on the state's Renewable Portfolio Standard. In states with SREC programs, your solar panels generate one SREC for every megawatt-hour (MWh) of electricity produced, and you can sell these credits to utilities for additional income. SREC prices vary significantly by state, ranging from $10 to over $300. If Washington does not have an SREC market, other incentives like net metering, state tax credits, and rebates may be available. A qualified Washington solar installer can explain which production-based incentives apply to your situation.

Many states, including potentially Washington, offer property tax exemptions for residential solar installations. A property tax exemption means that the added home value from your solar panels is excluded from your property tax assessment, so your taxes do not increase even though your home is worth more. Solar panels typically add $15,000-$25,000 or more to a home's value, so a property tax exemption can save hundreds of dollars annually. Check with your Washington county assessor's office or a local solar installer to confirm whether a property tax exemption applies in your specific Washington municipality.

Washington homeowners claim the 30% federal solar Investment Tax Credit (ITC) by filing IRS Form 5695 with their annual federal tax return. The process is straightforward: after your solar system is installed and operational, you include the total system cost on Form 5695, calculate the 30% credit, and transfer the credit amount to your Form 1040. You need to owe at least as much in federal taxes as the credit amount; if your tax liability is less than the credit, you can carry the remaining credit forward to future tax years. Your Washington solar installer should provide documentation of all qualifying costs. Consider consulting a tax professional to ensure you maximize your federal and any Washington-specific tax benefits.

Solar Incentives by City in Washington

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30%Federal Tax Credit
25+Year Savings
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