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Solar Tax Filing Helper (Form 5695)

Enter your system cost, installation year, and tax liability — get line-by-line Form 5695 guidance, ITC carryforward plan, and state credit stacking.

Installation & tax details
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Form 5695 — Residential Clean Energy Credit
$7,500 ITC claimed in 2024 — fully claimed
Form 5695 Line-by-Line
Line 1
Solar panel/system cost
$25,000
Line 2
Labor costs for installation (included in Line 1)
Included above
Line 3
Energy storage (battery) — if charged 100% by solar
Include in Line 1 if applicable
Line 5
Total qualified solar electric property costs
$25,000
Line 6
Residential Clean Energy Credit (30% × Line 5)
$7,500.00
Line 12
Credit carryforward from prior year
$0.00
Line 13
Total current year credit (Line 6 + Line 12)
$7,500.00
Line 14
Your federal tax liability this year
$12,000.00
Line 15
Credit claimed this year (Line 13 or Line 14, whichever is less)
Enter this on Form 1040, Schedule 3, Line 5.
$7,500.00
Line 16
Credit carryforward to next tax year
$0.00 (fully claimed)
FILING CHECKLIST
☐ Complete Form 5695 (Residential Energy Credits)
☐ Transfer credit to Schedule 3, Line 5
☐ Save installer invoice (keep 7 years for IRS records)
☐ Record any carryforward (Line 16) for next year
☐ Keep system permit and utility interconnection agreement on file
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How to Use This Calculator

Enter your system cost and installation year

Enter your total installed system cost — this includes panels, inverter, wiring, labor, permits, and any battery storage charged 100% by solar. Do not subtract rebates received from the utility or state; those only reduce your ITC basis if paid directly to you (not to the installer). Select the year installation was completed — this is the tax year you claim Form 5695. The ITC rate is 30% through 2032, then steps down.

Enter your tax liability (not your refund)

Your federal tax liability is the critical number — it's on Line 24 of Form 1040. This is your total tax owed before any credits or withholding. If you're estimating, your liability roughly equals (income × effective tax rate). The ITC can only offset actual tax liability — it cannot create a refund beyond what you've already withheld. Unused credit carries forward automatically to future years.

Read the Form 5695 line-by-line breakdown

The calculator outputs each relevant line of Form 5695 with your numbers filled in, shows exactly how much ITC you can claim this year, calculates any carryforward amount, and tells you when you'll exhaust the carryforward based on your current liability. State credits for Hawaii, New York, Massachusetts, South Carolina, and others are shown separately.

The Formula

Federal ITC (Line 6) = System Cost × ITC Rate (30% through 2032) Total Credit Available (Line 13) = ITC + Carryforward from Prior Year Claimed This Year (Line 15) = MIN(Line 13, Tax Liability) Carryforward to Next Year (Line 16) = Line 13 - Line 15 ITC Rate Schedule: 30% (2023-2032), 26% (2033), 22% (2034), 10% (2035+)

The ITC is a nonrefundable credit — it offsets tax liability dollar-for-dollar but cannot generate a refund. If your credit exceeds your liability, the excess carries forward to the next tax year. There is no limit on how many years the carryforward can continue — the IRS allows unlimited carryforward as long as the ITC program is active. For tax years 2023-2032, the 30% rate applies without income limits or phase-outs.

Example

David — Modest income retiree with carryforward

David installed an $18,000 solar system in Hawaii in 2024. His federal tax liability is $2,200/year (pension + Social Security income). He also qualifies for Hawaii's 35% state credit.

System cost$18,000
Federal ITC (30%)$5,400
Federal tax liability$2,200/year
Hawaii state credit (35%)$5,000 (capped)

Form 5695 Result

Line 6 — ITC amount$5,400
Line 15 — Claimed in 2024$2,200 (limited by liability)
Line 16 — Carryforward$3,200 to 2025
Years to exhaust ITC~2.5 more years (done by 2027)
HI state credit$5,000 (Form N-342)

David claims $2,200 in 2024, carries $3,200 forward to 2025, claims another $2,200 in 2025, and claims the remaining $1,000 in 2026. His federal ITC is fully used by 2026. The Hawaii state credit ($5,000) is filed separately on Form N-342 — stacked on top of the federal ITC, his total incentive value is $10,400 on an $18,000 system.

FAQ

Form 5695 is the IRS form for claiming the Residential Clean Energy Credit (formerly the Residential Energy Credit). You file it with your Form 1040 in the same tax year your solar system was placed in service — meaning installation was complete and the system was operational, not just ordered or contracted. The key date is when your utility approved interconnection (Permission to Operate), or when the system passed final inspection, whichever is earlier. File Form 5695 every year you have a carryforward balance to claim, until the credit is fully used.
The ITC can be carried forward indefinitely as long as the program remains active. Under current law, the 30% ITC applies through 2032, then steps down. If you install in 2024 and carry forward unused credit, you can claim it in 2025, 2026, and so on — there is no statutory carryforward limit in the Inflation Reduction Act's language for the residential credit. Practically, most homeowners exhaust their carryforward within 2-5 years. Keep every year's Form 5695 (especially Line 16) to document your carryforward chain accurately.
Yes — financing does not affect ITC eligibility. If you take a solar loan, home equity loan, or HELOC to finance your system, you still claim the full 30% ITC on the total installed cost. The IRS looks at who owns the system, not how you paid for it. You cannot claim the ITC if you lease the system or sign a Power Purchase Agreement (PPA) — in those cases, the leasing company claims the ITC. Cash purchase and loans both allow you to claim the full credit.
It depends on how the rebate is paid. Under IRS rules: if a utility pays you a rebate (check to you or credit on your bill), it reduces your ITC basis. If a state or local government pays you a rebate, it does NOT reduce your ITC basis (clarified in IRS Notice 2013-29 and confirmed by the IRA). If the rebate is paid directly to your installer and reduces your contract price, you only claim the ITC on the lower net price. Always ask your installer whether rebates were applied to your invoice price or paid separately to you — the distinction has real tax implications.
The ITC applies to all costs directly associated with the solar installation: solar panels, inverter (string or microinverters), racking and mounting hardware, wiring and conduit, electrical panel upgrades required for the solar connection, labor for installation, permit fees, inspection fees, and battery storage (if charged 100% from solar). Costs that do NOT count: general home electrical upgrades unrelated to solar, roofing repairs done at the same time, landscaping to reduce shading, or smart home equipment not integral to the solar system. Document all costs with itemized invoices in case of an audit.

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