The 30% Federal Solar Tax Credit: Complete 2026 Guide
By MySolarWidget Team · January 22, 2026 · 7 min read
The federal solar Investment Tax Credit (ITC) is the single most valuable solar incentive available to American homeowners. Enacted as part of the Inflation Reduction Act of 2022, the 30% credit applies to systems installed between 2022 and 2032.
On a typical $18,000–$25,000 solar installation, the ITC saves homeowners $5,400–$7,500 in federal taxes. Understanding how it works — and whether you qualify — is critical before making your solar decision.
What Is the Investment Tax Credit (ITC)?
The ITC is a federal income tax credit — not a deduction, not a rebate. A tax credit reduces your tax liability dollar-for-dollar. If you owe $8,000 in federal taxes and have a $6,000 solar credit, you owe $2,000 instead.
Key facts:
- Credit rate: 30% of total installed system cost
- Applies to: Panels, inverter, mounting hardware, labor, permitting, sales tax, and battery storage
- Form: Filed on IRS Form 5695 when you file your annual taxes
- Carryover: If your credit exceeds your tax liability in year one, the unused portion carries forward to future tax years
- Refundable? No — you must have sufficient federal tax liability to use it
How Much Is the ITC Worth?
The credit is 30% of every dollar you spend on the system — including labor. Batteries are now included if installed alongside panels (or even in some standalone cases under the IRA).
| System Cost | 30% Tax Credit | Your Net Cost |
|---|---|---|
| $12,000 | $3,600 | $8,400 |
| $16,000 | $4,800 | $11,200 |
| $20,000 | $6,000 | $14,000 |
| $25,000 | $7,500 | $17,500 |
| $30,000 | $9,000 | $21,000 |
| $40,000 (+ battery) | $12,000 | $28,000 |
If you add a Tesla Powerwall ($11,500) to a $20,000 solar system, your total qualifies for a 30% credit on the combined $31,500 — that's $9,450 back.
Who Qualifies for the Solar Tax Credit?
Eligibility requirements are straightforward:
- Own the system: You must purchase (cash or loan) — not lease or use a PPA. Leasing companies claim the credit, not you.
- Primary or secondary home: The panels must be on your primary or secondary US residence.
- New installation: The credit applies to new installations, not used equipment.
- Tax liability: You must owe federal income taxes. If you have no federal tax liability (e.g., you're retired on Social Security), you cannot use the credit.
- Install date: System must be "placed in service" (operational and approved by utility) in the tax year you claim it.
Do Renters Qualify?
Generally no — renters cannot claim the credit because they don't own the property or the solar installation.
What About LLCs and Businesses?
Businesses that install solar also qualify for a 30% Investment Tax Credit (via the commercial ITC, also called Section 48). Rules differ slightly from the residential credit.
How to Claim the Solar Tax Credit
Claiming the ITC is done at tax time — not immediately after installation. Here's the process:
- Install your system and receive Permission to Operate (PTO) from your utility.
- Keep all receipts — the installer's final invoice is your primary documentation.
- File IRS Form 5695 ("Residential Energy Credits") with your federal tax return for the year the system was placed in service.
- Enter your total system cost on Part I of Form 5695. The 30% credit is calculated automatically.
- The credit reduces your tax liability on Form 1040, Line 20.
Most tax software (TurboTax, H&R Block, TaxAct) guides you through Form 5695 automatically. If you use a CPA, simply tell them you installed solar and provide the invoice — they'll handle the rest.
State Solar Tax Credits and Incentives
Beyond the 30% federal credit, many states offer additional incentives that stack on top:
| State | Incentive | Value |
|---|---|---|
| New York | State Tax Credit | 25% of cost, up to $5,000 |
| Massachusetts | State Tax Credit + SMART program | 15% credit (up to $1,000) + solar incentive payments |
| Maryland | Residential Clean Energy Grant | Up to $1,000 grant |
| New Jersey | Sales Tax Exemption + SRECs | Saves 6.6% on system + $200–$400/year in SREC income |
| Arizona | State Tax Credit | 25% of cost, up to $1,000 |
| South Carolina | State Tax Credit | 25% of cost, up to $3,500 |
Property tax exemptions (36 states) and sales tax exemptions (25 states) also add significant value by preventing solar from raising your property tax assessment.
When Does the 30% Credit Expire?
Under the Inflation Reduction Act (IRA), the 30% residential solar credit is locked in through December 31, 2032. After that:
- 2033: Credit drops to 26%
- 2034: Credit drops to 22%
- 2035: Credit expires (unless renewed by Congress)
For homeowners considering solar in the next few years, there's no urgency from the tax credit alone — 30% is available through 2032. However, electricity rates continue rising every year, and every year you delay is a year of savings lost.
Use our Solar Calculator to see your personalized tax credit amount alongside your projected savings.
Frequently Asked Questions
Can I claim the solar tax credit if I lease my panels?
No. When you lease solar panels, the leasing company owns the system and claims the 30% tax credit — not you. This is one of the key financial disadvantages of leasing vs. buying.
What if my tax credit is larger than my tax bill?
The unused portion carries forward to the following tax year. For example, if you have a $7,500 credit but only owe $5,000 in taxes, the remaining $2,500 rolls to the next year. The credit has no expiration on carryforward within the program's life.
Does the solar tax credit apply to battery storage?
Yes. Under the Inflation Reduction Act, battery storage systems installed with solar (or even standalone in some cases) qualify for the 30% federal tax credit. A $13,000 Powerwall would add $3,900 to your total credit.
Is the solar tax credit a rebate or a refund?
Neither. It is a non-refundable tax credit. It reduces your federal tax liability dollar-for-dollar. If you owe no taxes, you cannot get a "refund" of the credit — though unused portions carry forward to future years.