Form 5695 instructions for battery storage
Line 5b. That’s the line on IRS Form 5695 where your home battery credit lives. Enter your total qualified battery storage costs there, multiply by 0.30 on line 6b, and that number flows to Schedule 3, then to your 1040. If you installed a qualifying system in 2025 or earlier, that’s how you get 30% back.
But there’s an urgent wrinkle most guides haven’t caught yet. The One Big Beautiful Bill Act, signed July 4, 2025, terminated the Residential Clean Energy Credit for any installation completed after December 31, 2025. If your battery isn’t installed by then, the credit is gone. Not reduced. Gone.
This article walks through Form 5695, Part I, line by line for battery storage filers. If you need the big-picture overview first — what qualifies, what doesn’t, state programs — read the battery storage tax credit guide. This is the tax form walkthrough.
ShelterVolt is a system design guide, not a CPA firm. The rules here are accurate as of publication. Consult a tax professional before filing.
The lines that matter for battery storage
Form 5695 has two parts. Part I is the Residential Clean Energy Credit (Section 25D) — that’s yours. Part II is the Energy Efficient Home Improvement Credit (Section 25C) for windows, insulation, and heat pumps. Ignore Part II entirely for battery storage.
If you’re claiming only a battery (no solar, no wind, no geothermal), most of Part I stays blank too. Here’s the actual path your numbers take:
Line 5a — a checkbox. “Does the battery storage technology have a capacity of at least 3 kilowatt-hours?” Check yes. If your battery is under 3kWh, stop here. No credit. This is a hard cutoff from IRC Section 25D(d)(7), and there’s no partial credit for being close. The portable power station tax credit article breaks down exactly which units clear that bar.
Line 5b — enter the total dollar amount of your qualified battery storage costs. This is the big number. Hardware, labor, permits, wiring. Everything that went into getting the battery operational in your home. More on what counts below.
Line 6a — add lines 1 through 5b. If battery is your only clean energy install, this equals line 5b.
Line 6b — multiply line 6a by 0.30. This is your gross credit.
Line 12 — enter any carryforward from a prior year’s Form 5695. If you installed in 2024 but your credit exceeded your tax liability and you carried forward the remainder, that number goes here.
Line 13 — add line 6b and line 12. This is your total available credit.
Line 14 — your tax liability limit, calculated from the worksheet in the Form 5695 instructions. The credit is nonrefundable, meaning it can reduce what you owe to zero but won’t generate a refund check.
Line 15 — the lesser of line 13 or line 14. This is the actual credit you claim. It flows to Schedule 3, line 5, then to your 1040.
Line 16 — if line 13 exceeds line 14, the difference carries forward to next year. Write it down. You’ll need it for line 12 on next year’s form.
That’s the whole path. Six lines of actual data entry. Your tax software handles the math and routing automatically — TurboTax, H&R Block, and FreeTaxUSA all support Form 5695 for battery storage.
What counts as “qualified battery storage costs”
The 30% applies to everything it took to get the system installed and operational. Per the IRS instructions, that includes expenditures for “onsite preparation, assembly, or original installation” plus “piping or wiring to interconnect such property to the dwelling unit.”
In plain English:
- Battery hardware (the unit itself)
- Inverter, if purchased separately
- Licensed electrician labor
- Wiring, conduit, and connection materials
- Permits and inspection fees
- Load center or subpanel upgrades required for the installation
A real example: you install a Tesla Powerwall 3. The battery costs $9,200, the electrician charges $4,800 for labor, and permits run $400. Your line 5b entry is $14,400. Line 6b: $4,320 credit.
What does not count: extended warranties, monitoring subscriptions, financing interest, loan origination fees, or shipping costs. If you financed the system, the credit is based on the purchase price, not the total amount you’ll pay over the loan term.
The “placed in service” rule
The credit is claimed for the tax year when installation is completed, not when you paid or ordered. The IRS calls this “placed in service.” Your battery is placed in service when the electrician finishes the install, the system passes inspection, and it’s operational.
This matters enormously right now. The OBBB terminated the Section 25D credit for installations completed after December 31, 2025. If your electrician wraps up on December 30, you get the credit. If they finish on January 2, 2026, you don’t. Having a signed contract or a deposit in 2025 is not enough. The system has to be installed and operational.
If you installed in 2024, claim it on your 2024 return (or amend if you missed it). If you’re installing in 2025, make sure it’s done before year-end.
The OBBB deadline: what actually changed
The Inflation Reduction Act originally set the credit at 30% through 2032, stepping down to 26% in 2033 and 22% in 2034. The One Big Beautiful Bill Act accelerated that timeline by seven years.
Under current law:
- 2025 and earlier: 30% credit, full eligibility
- 2026 and later: No new credits. Zero.
One exception: if you have unused carryforward from a 2025 or earlier installation, you can still claim that carryforward on future returns. The IRS confirmed this in their OBBB FAQ. The credit amount you earned doesn’t expire just because the program ended. You carry it forward until you use it.
Documentation you need to keep
You don’t file any of this with your return. But if the IRS asks questions, you want a clean file:
Manufacturer’s certification statement. Tesla, EcoFlow, Enphase, FranklinWH, and Anker all provide downloadable certificates confirming their batteries meet the 3kWh threshold. Grab it from the manufacturer’s support portal.
Itemized contractor invoice. Ask your electrician to break out hardware and labor separately. Both are eligible, but itemization proves what you paid for. If they bundled everything into one line, ask for a revised invoice before you file.
Permit and inspection records. The issued electrical permit and the final inspection sign-off prove the installation date and that the work met code. This is your strongest audit documentation because it establishes both when and where the system was placed in service.
Proof of payment. Bank statement, credit card receipt, or canceled check. Financing documents if applicable.
Common mistakes to avoid
Claiming the wrong tax year. You ordered and paid in November 2025, but the installer didn’t finish until January 2026. Under the OBBB, that means no credit at all. The placed-in-service date is what matters.
Including ineligible costs. Loan interest and extended warranties don’t belong on line 5b. Neither does a monitoring subscription.
Forgetting the carryforward. If your credit exceeds your tax liability, the excess doesn’t disappear. It carries to next year’s line 12. Don’t leave money on the table.
Skipping line 5a. If you leave the 3kWh checkbox blank or check “No,” tax software won’t let you enter anything on line 5b. It’s a gatekeeper field.
Not filing the form at all. The credit isn’t automatic. You have to file Form 5695 with your return and let it flow to Schedule 3 and then your 1040. If you use tax software, it handles the routing, but you still have to answer the battery storage questions for the form to generate.
What to do right now
If you installed a qualifying battery in 2025, file Form 5695 with your 2025 return. Line 5b, your total costs, multiply by 0.30, done.
If you’re planning to install and haven’t started, the clock is ticking. December 31, 2025 is the deadline for the system to be placed in service. Installer schedules fill up fast in Q4 — get quotes now and lock in a completion date.
If you haven’t sized your system yet, start with the home generator sizing calculator to figure out how much capacity you actually need. Then check the battery storage tax credit guide for the full picture on state programs that stack on top of the federal 30%.