Solar Tax Credit 2026: How to Claim the 30% Federal ITC (Step-by-Step)
The federal solar tax credit (officially the Residential Clean Energy Credit under Section 25D) covers 30% of your total solar installation cost in 2026 — with no upper limit. A $25,000 system generates a $7,500 credit that directly reduces your federal income tax bill. The 30% rate is locked in through 2032, drops to 26% in 2033, then 22% in 2034, making 2026 one of the best years to go solar from a tax incentive perspective.
Key Takeaways
- Credit amount: 30% of total solar system cost (panels, inverters, labor, permits — everything)
- Cap: No maximum — the credit equals exactly 30% regardless of system size
- Timeline: 30% through 2032 → 26% in 2033 → 22% in 2034 → 0% for residential after 2034
- Battery storage: Qualifies for the 30% credit whether installed with solar or standalone
- Rollover: Unused credit carries forward to future tax years (no expiration)
- Who qualifies: Homeowners who own their solar system and owe federal income tax
What’s in This Guide
How the Solar Tax Credit Works
The solar investment tax credit (ITC) is a dollar-for-dollar reduction of your federal income tax liability — not a deduction. That’s an important distinction. A $7,500 tax credit reduces your tax bill by exactly $7,500, while a $7,500 deduction would only save you $1,650–2,775 depending on your tax bracket. The ITC is worth its full face value regardless of your income level.
Here’s how it works in practice: You install solar in 2026. You receive a receipt showing the total cost. When you file your 2026 federal tax return (in early 2027), you complete IRS Form 5695 and claim 30% of the total cost as a credit. The credit reduces the amount of tax you owe. If you owe $10,000 in federal taxes and have a $7,500 solar credit, you pay only $2,500.
| System Cost | 30% Credit | Net Cost After ITC | Example Tax Owed | Tax After Credit |
|---|---|---|---|---|
| $15,000 | $4,500 | $10,500 | $8,000 | $3,500 |
| $20,000 | $6,000 | $14,000 | $10,000 | $4,000 |
| $25,000 | $7,500 | $17,500 | $12,000 | $4,500 |
| $30,000 | $9,000 | $21,000 | $14,000 | $5,000 |
| $40,000 (with battery) | $12,000 | $28,000 | $16,000 | $4,000 |
What Expenses Qualify for the Solar Tax Credit
| Eligible Expenses (30% credit) | NOT Eligible |
|---|---|
| Solar panels and mounting hardware | Roof replacement or repair (unless solar-specific) |
| Inverters (string, micro, or power optimizers) | Tree removal for shading |
| Battery storage systems (any capacity) | Landscaping or aesthetic modifications |
| Installation labor costs | Solar lease or PPA payments (you don’t own it) |
| Electrical panel upgrades (if required for solar) | Property taxes on increased home value |
| Permitting and inspection fees | Interest on solar loans |
| Wiring, conduit, and electrical work | Maintenance or cleaning costs |
| Energy monitoring systems | Sales tax (in most states) |
| Sales tax on eligible components (if applicable) | Generator or non-solar backup power |
The key rule: anything that’s necessary for the solar energy system to function and that you paid for qualifies. This includes the electrical panel upgrade if your electrician documents that it was required specifically to support the solar installation. It also includes battery storage — and since the IRA passed in 2022, standalone batteries (not connected to solar) also qualify for the 30% credit.
Solar Tax Credit Schedule: 2024–2035
| Tax Year | Residential Credit Rate | Credit on $25,000 System | Notes |
|---|---|---|---|
| 2024–2032 | 30% | $7,500 | Full rate; includes battery storage |
| 2033 | 26% | $6,500 | First step-down year |
| 2034 | 22% | $5,500 | Last year for residential credit |
| 2035+ | 0% | $0 | Residential credit expires (unless extended by Congress) |
How to Claim the Solar Tax Credit (Step-by-Step)
Step 1: Confirm system ownership. You must own the solar system to claim the credit. Leased systems and power purchase agreements (PPAs) don’t qualify — the leasing company claims the credit instead (which is how they offer $0-down pricing). If you financed with a solar loan, you own the system and qualify for the full credit.
Step 2: Gather documentation. Collect the final invoice from your installer showing the total system cost, itemized by component (panels, inverters, labor, permits, etc.). Keep the installer’s contract, proof of payment, and the utility interconnection approval showing the system is operational. You don’t submit these with your tax return, but you need them if audited.
Step 3: Complete IRS Form 5695. Part I of Form 5695 (Residential Energy Credits) covers the Residential Clean Energy Credit. Enter the total qualified cost on the appropriate line and calculate 30% of that amount. The form walks through the calculation step by step.
Step 4: Transfer to Form 1040. The credit amount from Form 5695 transfers to Schedule 3 of your Form 1040 (Line 5), then to Form 1040 Line 20. This reduces your total tax liability for the year.
Step 5: Handle any carryforward. If your credit exceeds your tax liability for the year, the excess carries forward. Form 5695 includes a carryforward section. Enter the unused amount when you file next year’s return.
Special Situations
New construction: If you’re building a new home and install solar as part of construction, you can claim the credit on the solar components only — not the roof, electrical system, or other construction costs. The solar installer should provide a separate invoice for the solar-specific work.
Second homes and vacation properties: The solar ITC applies to second homes you own, as long as you don’t rent them out full-time. The property must be used as a residence by you at some point during the year. Rental properties qualify for the commercial ITC instead (different rules).
Married filing separately: If married filing separately, the credit is calculated based on the total system cost but divided between spouses based on who paid for the system. Most couples file jointly to simplify this.
Battery added later: If you install solar now and add battery storage in a future year, the battery qualifies for the credit at the rate in effect the year it’s installed. You don’t need to add the battery at the same time as the solar panels. Each component qualifies based on its own “placed in service” date.
AMT (Alternative Minimum Tax): The solar ITC can be used against both regular tax and AMT liability. This was a limitation before 2022 but was resolved by the Inflation Reduction Act.
State Solar Tax Credits and Incentives
| State | State Incentive | Combined w/ Federal | Details |
|---|---|---|---|
| New York | Up to $5,000 credit | ~50% total savings | 25% of cost, capped at $5,000; stacks with federal |
| South Carolina | 25% credit (up to $3,500) | ~44% total savings | State income tax credit; can carry forward 10 years |
| Arizona | $1,000 credit | ~34% total savings | Flat $1,000 state credit plus property tax exemption |
| Massachusetts | SMART payments | 30%+ total savings | Performance-based incentive; ~$0.06–0.10/kWh for 10 years |
| New Jersey | SRECs + sales tax exempt | 30%+ total savings | Tradeable SRECs worth $500–2,000+/year; no sales tax on solar |
| Illinois | SRECs (Shines program) | 30%+ total savings | Upfront SREC payment of $3,000–6,000 for typical systems |
| Connecticut | RSIP rebate | ~35% total savings | Performance-based rebate through Green Bank |
State incentives stack on top of the federal ITC — they don’t reduce the federal credit. If your $25,000 system earns a $5,000 state credit and a $7,500 federal credit, your total incentives are $12,500, not $7,500. However, if you receive a state rebate (not a credit) that reduces your out-of-pocket cost, the IRS considers that a reduction of the cost basis — so a $2,000 state rebate on a $25,000 system means you claim 30% of $23,000 ($6,900) for the federal ITC.
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Frequently Asked Questions
How much is the solar tax credit in 2026?
The solar tax credit in 2026 is 30% of the total installed cost of your solar energy system, with no upper limit. For a typical $25,000 residential installation, that’s a $7,500 credit. The 30% rate applies to systems installed and operational in any year from 2022 through 2032. The credit covers panels, inverters, mounting hardware, labor, electrical work, permitting, and battery storage.
Is the solar tax credit a refund or credit?
The solar tax credit is a nonrefundable tax credit — it reduces the amount of federal income tax you owe but cannot generate a refund beyond what you’ve already paid in. If your credit is $7,500 but you only owe $5,000 in federal tax, you use $5,000 this year and carry the remaining $2,500 forward to future tax years. The carryforward has no expiration date, so you’ll eventually use the full credit amount.
Can I claim the solar tax credit if I finance my system?
Yes — if you finance your solar system with a loan (solar loan, home equity loan, or HELOC), you own the system and qualify for the full 30% credit on the total system cost. The credit is based on the purchase price, not the amount you’ve paid so far. However, loan interest does not qualify for the credit. Solar leases and PPAs do not qualify because you don’t own the system — the leasing company claims the credit instead.
Does the solar tax credit apply to battery storage?
Yes — battery storage systems qualify for the 30% federal tax credit whether installed with a new solar system or added to an existing one. Since the Inflation Reduction Act of 2022, standalone battery storage (not paired with solar) also qualifies. A $12,000 Tesla Powerwall generates a $3,600 credit. The battery must have a capacity of at least 3 kWh to qualify.
What IRS form do I use to claim the solar tax credit?
Use IRS Form 5695 (Residential Energy Credits), Part I. Enter your total qualified solar energy system costs, calculate the 30% credit, then transfer the result to Schedule 3 of your Form 1040 (Line 5). Most tax software (TurboTax, H&R Block, FreeTaxUSA) includes Form 5695 and will walk you through the process. Keep your installer’s itemized invoice and proof of payment in case the IRS requests documentation.
Can I claim the solar tax credit on a second home?
Yes — the solar tax credit applies to any property you own and use as a residence, including second homes and vacation homes. The property does not need to be your primary residence. However, rental properties used exclusively for rental income don’t qualify for the residential credit (Section 25D). If you use the property partly for rental and partly as a personal residence, you can claim the credit on the percentage used personally.
Will the solar tax credit be extended past 2034?
Under current law, the residential solar tax credit expires after 2034 (22% in 2034, 0% after). Congress could extend it — the credit has been extended multiple times since it was first created in 2005. However, there’s no guarantee of extension, and the political landscape around clean energy incentives shifts with each election cycle. Planning around the current schedule (30% through 2032, then step-downs) is the safest approach.
Related Guides
- Solar Panel Cost Guide — complete pricing by system size, state, and panel type
- Solar Panel ROI — payback period and 25-year returns by state
- How Many Solar Panels Do I Need? — sizing calculator for your home
- Tesla Powerwall Cost — battery storage pricing and the 30% credit
- Best Solar Panels — top brands ranked by efficiency and value