Government Programs for Solar Panels: Federal, State, and Low-Income

Government programs for solar panels center on a 30% federal tax credit that covers the full installed cost of a home system with no dollar cap and no income limit. Around that anchor sit USDA grants for rural properties, commercial investment credits for businesses, and a shifting layer of state and utility programs: renewable energy certificate markets, net metering, community solar, and property or sales tax exemptions. Knowing which apply to you, and how they stack, decides whether you capture the full benefit or leave money behind.

The 30% Federal Residential Clean Energy Credit

Under 26 U.S.C. § 25D, an individual who buys and installs a solar energy system on a home they use as a residence can claim a tax credit equal to 30% of the total cost. The Inflation Reduction Act of 2022 restored that 30% rate for systems placed in service after December 31, 2021, and a 2025 amendment struck the previously scheduled step-downs to 26% and 22%. As the statute reads today, the 30% rate applies with no scheduled expiration.¹

There is no annual or lifetime dollar cap. A $40,000 system generates a $12,000 credit; a $60,000 system generates $18,000. There is also no income phase-out.² The system must sit on a dwelling in the United States that you use as a residence, but it does not have to be your primary home. A vacation home or second residence qualifies. A rental property where the owner does not live does not.¹ Both existing homes and new construction are eligible.³

You have to own the system. If you lease panels or sign a power purchase agreement, the solar company owns the equipment and captures the credit itself. A solar loan is different: you still own the system, and the credit is yours.¹

What the Credit Covers

The 30% applies to the full installed cost, not just the hardware. Labor for on-site preparation, assembly, and original installation counts, as does wiring or piping needed to connect the system to your home.¹ Qualifying property falls into a few categories:

Solar electric panels, whether roof-mounted or ground-mounted.
Solar water heaters, provided they are certified by the Solar Rating Certification Corporation or an equivalent state-endorsed entity.¹
Battery storage with a capacity of at least 3 kilowatt-hours, whether installed with panels or added later.¹
Solar roofing tiles and shingles that generate electricity. Ordinary roofing materials that merely support a panel array do not qualify.²

How to Claim It

The credit is claimed on IRS Form 5695 (Residential Energy Credits), attached to your Form 1040. The form asks for the total cost of the qualifying property, including labor, wiring, and installation. Thirty percent of that total reduces your federal tax bill dollar for dollar.

Before filing, pull together the total invoice covering equipment, labor, and installation; the manufacturer’s certification statement confirming the equipment meets IRS efficiency and safety standards (keep this in your records, don’t mail it in); and the exact date the system was placed in service, which is usually when installation was completed and the system became operational. That date sets the tax year.

The credit is nonrefundable. It can bring your tax liability to zero but will not generate a refund past that. If the credit exceeds what you owe, the unused portion carries forward to the next tax year.¹ The IRS does not set a specific limit on how long you can carry it forward, so homeowners with smaller tax bills can capture the full amount over several returns.² A $9,000 credit against a $5,000 tax bill does not lose the extra $4,000; that amount rolls into the following year when you file Form 5695 again.

Commercial Solar Credits for Businesses

If you are installing solar on a business rather than a home, the residential credit does not apply. Businesses use the investment tax credit under 26 U.S.C. § 48, which starts at a base rate of 6% for qualifying commercial solar property.⁴ That base rises to 30% if the project meets prevailing wage and apprenticeship requirements or has a maximum output under one megawatt.⁵ Projects using domestically manufactured components can earn an additional bonus of up to 10 percentage points.⁶

A newer technology-neutral credit under 26 U.S.C. § 48E uses the same base and bonus structure but contains a termination provision for solar property placed in service after December 31, 2027.⁷ The interaction between the two sections is complex enough that any business planning a project should work with a tax advisor who tracks these rules specifically.

USDA Rural Energy for America Program

Agricultural producers and small businesses in rural areas can tap grants and loan guarantees through the Rural Energy for America Program (REAP) under 7 U.S.C. § 8107.⁸ Because REAP provides direct funding rather than a tax credit, it works for operations that would not owe enough tax to use a credit fully.

REAP grants for renewable energy systems range from $2,500 to $1,000,000 and can cover up to 50% of eligible project costs. Loan guarantees run up to $25 million, with the guaranteed share sliding from 85% on loans of $600,000 or less down to 60% on loans over $10 million. To qualify, agricultural producers must earn at least 50% of gross income from farming. Small businesses must meet SBA size standards and sit in an eligible rural area.⁹

A REAP grant stacks with the federal tax credit. A rural business receiving a grant covering half the project cost can still claim a credit on what it paid out of pocket, and the combination can drop the effective cost sharply.

State and Local Incentives That Stack on Top

State and local programs vary widely, and the mix in your area can change the math as much as the federal credit does.

Solar Renewable Energy Certificates

In states with renewable portfolio standards, utilities must source a set percentage of their electricity from renewables. Solar Renewable Energy Certificates (SRECs) make that work: your system generates one certificate for every megawatt-hour it produces, and you can sell those certificates to utilities that need them.¹⁰ Prices swing with supply and demand within each state’s market. In states with aggressive mandates and limited supply, a certificate can bring several hundred dollars; in saturated markets, prices fall. Not every state runs an SREC market, so check yours before counting on the income.

Net Metering

Net metering lets you send excess electricity to the grid in exchange for credits on your utility bill. Surplus flows out on sunny afternoons; you draw from the grid at night or on cloudy days, and the credits offset consumption. Many states compensate at the full retail rate, but several have moved toward lower export rates or replaced traditional net metering with alternative tariffs. The value of exported solar power depends heavily on where you live and when your utility last revised its policy.

Community Solar

Renters, condo owners, and homeowners with shaded roofs can subscribe to a share of a larger off-site array through community solar programs. Credits from the array’s output appear on the subscriber’s utility bill in proportion to their share. Availability depends on state policy and local utility participation.

Property and Sales Tax Breaks

A solar installation usually adds to a home’s market value, which would ordinarily raise property tax. A majority of states have addressed this by exempting solar installations from property tax assessment, either in full or up to a fixed amount. Separately, roughly 18 states exempt solar equipment purchases from state sales tax. On a $30,000 system in a state with a 6% sales tax, that exemption alone saves $1,800 at the point of purchase. Your state energy office or tax authority has the current rules.

Low-Income Solar Programs

Because a tax credit is worth little to a household that owes little federal tax, the Inflation Reduction Act funded the Solar for All program through the EPA’s Greenhouse Gas Reduction Fund, with $7 billion in grants aimed at delivering residential solar to more than 900,000 low-income and disadvantaged households.¹¹

The EPA announced in August 2025 that it would terminate Solar for All. As of early 2026, the program is paused and its future is being contested in federal court by multiple states and organizations. The litigation could reinstate, restructure, or end the program. Some states and utilities run their own low-income solar programs that do not depend on federal funding, and a state energy office is the best starting point for identifying what remains available locally.

Stacking the Programs Together

The real value comes from layering. A homeowner installing a $30,000 solar system with a $5,000 battery can claim a 30% federal credit on the full $35,000, cutting the federal tax bill by $10,500. If the state exempts the purchase from sales tax and excludes the added home value from property taxes, those savings sit on top. Net metering and SREC income, where available, keep working for years.

One rule matters when you combine programs: the federal credit is calculated on your out-of-pocket cost. A state rebate or utility incentive that reduces the purchase price before you pay also reduces the basis for the federal credit. A grant that cuts a $30,000 system to $25,000 means your 30% credit is $7,500, not $9,000. State tax credits generally do not reduce the federal basis because they arrive as a tax benefit rather than a price reduction. Confirm the treatment of any specific rebate with a tax professional before filing.

1
Office of the Law Revision Counsel. 26 USC 25D – Residential Clean Energy Credit
2
Internal Revenue Service. Residential Clean Energy Credit
3
Internal Revenue Service. Installing Solar Panels or Making Other Home Improvements May Qualify Taxpayers for Home Energy Credits
4
Office of the Law Revision Counsel. 26 USC 48 – Energy Credit
5
Internal Revenue Service. Frequently Asked Questions About the Prevailing Wage and Apprenticeship Under the Inflation Reduction Act
6
Internal Revenue Service. Domestic Content Bonus Credit
7
Office of the Law Revision Counsel. 26 USC 48E – Clean Electricity Investment Credit
8
Office of the Law Revision Counsel. 7 USC 8107 – Rural Energy for America Program
9
USDA Rural Development. Rural Energy for America Program
10
US EPA. State Solar Renewable Energy Certificate Markets
11
U.S. Environmental Protection Agency. Biden-Harris Administration Announces 7 Billion Solar for All Grants