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Federal Solar Tax Credit Guide 2025 – 30% ITC Explained

Everything you need to know about claiming the 30% federal Investment Tax Credit for solar panels

Published January 1, 2025 · Last updated: July 3, 2026

What is the Federal Solar Tax Credit?

The federal Investment Tax Credit (ITC) allows you to deduct 30% of your solar system cost from your federal income taxes. This credit applies to both residential and commercial solar installations.

Current Rate: 30% through 2032, then decreases to 26% (2033), 22% (2034), and expires for residential systems in 2035. Commercial systems get 10% after 2034.

What Expenses Qualify?

The following costs are eligible for the 30% tax credit:

  • Solar Panels: All panel costs including mounting hardware
  • Inverters: Microinverters, string inverters, and power optimizers
  • Installation Labor: Professional installation costs
  • Permits & Inspections: Building permits and electrical inspection fees
  • Batteries: Energy storage systems (if charged 100% by solar)
  • Sales Tax: State and local sales tax on equipment

Not Eligible: Landscaping, structural repairs, roof repairs (unless necessary for solar), and maintenance costs after installation.

How to Claim the Tax Credit

Step 1: Install Your System

Your solar system must be installed and operational in the tax year you're claiming the credit. The system must be new (not used equipment).

Step 2: Calculate Your Credit

Multiply your total eligible costs by 30% (0.30). For example, a $1,500 system = $450 tax credit.

Step 3: File IRS Form 5695

Complete IRS Form 5695 (Residential Energy Credits) and attach it to your Form 1040. The credit reduces your tax liability dollar-for-dollar.

Step 4: Carry Forward if Needed

If your tax credit exceeds your tax liability, you can carry the unused portion forward to future tax years. There's no expiration on the carry-forward.

Example Calculation

System Cost Breakdown:

  • Solar panels (800W): $600
  • Microinverter: $200
  • Mounting hardware: $150
  • Installation labor: $300
  • Permits & inspection: $100
  • Sales tax (8%): $108
  • Total: $1,458

Federal Tax Credit (30%): $1,458 × 0.30 = $437

Your net cost after tax credit: $1,021

Eligibility Requirements

  • Ownership: You must own the system (not lease or PPA)
  • Location: System must be installed at your primary or secondary residence in the US
  • New Equipment: Only new solar equipment qualifies (no used panels)
  • Tax Liability: You must have federal tax liability to claim the credit (but can carry forward)

State Tax Credits & Incentives

Many states offer additional tax credits and rebates on top of the federal credit:

Examples of State Credits:

  • New York: 25% state tax credit (up to $5,000)
  • Arizona: 25% state tax credit (up to $1,000)
  • North Carolina: 35% state tax credit (up to $10,500)
  • South Carolina: 25% state tax credit (up to $3,500)
  • New Mexico: 10% state tax credit (up to $6,000)

Check your state's energy office website for current incentives and eligibility requirements.

Frequently Asked Questions

Can I claim the credit if I lease my solar system?

No, only system owners can claim the federal tax credit. If you lease or have a Power Purchase Agreement (PPA), the leasing company claims the credit and passes savings to you through lower lease payments.

What if my tax credit is more than my tax liability?

You can carry forward the unused portion to future tax years indefinitely. There's no expiration date on the carry-forward, so you can use it whenever you have sufficient tax liability.

Do I need to itemize deductions to claim the credit?

No, the solar tax credit is a non-refundable credit that reduces your tax liability directly. You don't need to itemize deductions. You can claim it even if you take the standard deduction.

Can I claim the credit for a rental property?

Yes, if the rental property is considered a business, you can claim the credit. However, the rules are different for business properties, and you may need to depreciate the system instead. Consult a tax professional.

Calculate Your Savings with Tax Credits

See how the 30% tax credit affects your ROI and browse recommended products for your solar system

What you'll get:

  • • Free ROI calculator with tax credit calculations
  • • Recommended solar panels & complete kits
  • • Inverters, cables & mounting hardware
  • • Products that qualify for the 30% ITC
Go to Calculator & Products →

Free calculator + recommended products with affiliate links

FAQ

Is balcony solar worth it in the US?

Yes — an 800W plug-in system typically pays back in 3–7 years depending on your state electricity rate and sun exposure. Use our free calculator for a personalized estimate.

Do I need a permit for plug-in balcony solar?

Requirements vary by state and utility. Many jurisdictions allow UL-listed plug-in systems with utility registration. See our permits guide and state legality page.

Can renters install balcony solar?

Yes with landlord permission. Portable mounts and plug-and-play kits are removable at move-out. See our renter guide for details.

What size system should I buy?

800W (4×200W panels) fits most balconies and is the most popular US size. Compare 400W vs 800W in our sizing guide.

Does balcony solar qualify for the federal tax credit?

Yes — purchased equipment qualifies for the 30% federal ITC through 2032. See our federal tax credit guide for claiming instructions.

How do I monitor solar production?

Use WiFi smart plugs or whole-home monitors like Emporia Vue. See our monitoring guide and best smart plugs comparison.

What is UL 1741 and why does it matter?

UL 1741 SA certifies grid-tie inverters for safe export to the utility grid. Required for legal plug-in solar in most US states.

How much can I save per year?

Typical 800W systems save $100–$250/year depending on location, orientation, and electricity rate. Calculate your exact savings with our ROI calculator.

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Affiliate Link Disclosure: The following links are affiliate links. If you make a purchase through these links, we receive a small commission at no additional cost to you. This helps us maintain and develop free tools like this calculator.

Compatibility note: Plug-and-play kits include matched panels, microinverter, and AC cord. MC4 panels require a separate grid-tie microinverter or kit. Plug-in solar legality varies by state — check local regulations before buying.

Compare ROI for your setup with our free balcony solar calculator .

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