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The Federal 25C credit, in plain English
Section 25C of the Internal Revenue Code — the Energy Efficient Home Improvement Credit — was expanded by the Inflation Reduction Act and runs through 2032. For HVAC purposes it's a tax credit (not a rebate check): 30% of the qualifying equipment plus installation cost, subject to per-category caps, claimed on your federal return the year the equipment is placed in service.
| Equipment | Credit | Annual cap |
|---|---|---|
| Heat pump (qualifying) | 30% of installed cost | $2,000 |
| Central AC (qualifying) | 30% of installed cost | $600 |
| Natural-gas furnace (qualifying) | 30% of installed cost | $600 |
| Home energy audit | 30% of audit cost | $150 |
| Insulation and air-sealing improvements | 30% of cost | $1,200 |
The category cap resets every calendar year, so a big project — heat pump one year, air-sealing the next — can pick up the full benefit twice. What it cannot do is exceed your federal tax liability for the year: 25C is nonrefundable, meaning if you owe $1,500 in federal tax, the maximum credit you'll actually pocket is $1,500 no matter how big the equipment purchase was.
SWEPCO residential rebates
SWEPCO (Southwestern Electric Power Company) runs annual efficiency-rebate programs for its Arkansas customers. Structures and dollar amounts have changed year over year — the Cool Saver and Prescriptive Rebates programs have historically been the relevant ones for HVAC — so the specific 2026 numbers should be verified against SWEPCO's current program page before you sign a proposal that assumes rebate revenue.
Program eligibility
SWEPCO residential customer, single-family or two-family home, meter in the customer's name, installation by a program-participating contractor. Some programs additionally require the home to be the customer's primary residence.
Qualifying equipment
Rebate amounts are typically tiered by SEER2 (for AC) or SEER2 + HSPF2 (for heat pumps). Higher efficiency = larger rebate, up to program caps. Equipment must appear on the AHRI Directory of Certified Product Performance with matched indoor + outdoor components.
Application timing
Some past program cycles have required pre-approval before install; others accept post-install submission within 60–90 days. [GATHER: verify 2026 SWEPCO Arkansas residential HVAC rebate program cycle, pre-approval requirement, and dollar amounts before proposing to a customer.]
Budget-limited, first-come first-served
SWEPCO programs run on annual budgets. Late-summer applications sometimes hit exhausted funds. Filing early in the program year — or having a program-participating contractor submit on your behalf immediately — is worth doing.
Documentation the utility will ask for
Manufacturer model numbers (indoor and outdoor), AHRI certificate for the matched system, installation date, contractor license or program-participant ID, and often a copy of the itemized invoice.
How they stack — a worked River Valley example
Take a mid-tier heat-pump install typical for a 2,000 sq ft Van Buren single-family: matched two-stage system, 16 SEER2 / 8.1 HSPF2, replacing a 15-year-old AC and gas furnace. Pre-incentive installed price: $14,500.
| Line item | Calculation | Amount |
|---|---|---|
| Installed price | — | $14,500 |
| Federal 25C credit | 30% × $14,500 = $4,350, but capped at heat-pump cap | −$2,000 |
| SWEPCO efficiency rebate | [GATHER: verify current-year SWEPCO Arkansas heat-pump rebate — historical range $500–$1,000 for this tier] | −$500 to −$1,000 |
| Net after incentives | — | $11,500 to $12,000 |
That's a net reduction of 17–21% off the sticker price on a mid-tier install. On a top-tier variable-speed heat pump around $17,500, the same stack produces roughly $2,500–$3,000 in combined incentive — a smaller percentage of a larger number. Detailed pricing bands are in our AC replacement cost guide.
Five mistakes that cost homeowners money
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1. Buying just below the CEE tier
A 14.3 SEER2 heat pump is <em>federal minimum</em>, not 25C-qualifying. Verify the specific model on the AHRI Directory before you sign — the difference between 14.3 and 15.2 SEER2 might be $300 of equipment upcharge and $2,000 of federal credit.
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2. Skipping manufacturer registration
Some rebate programs require the equipment be registered with the manufacturer within 30–60 days of installation. This also unlocks the extended parts warranty. Our installers do this at commissioning; if yours doesn't, you're responsible for it. See <a href="/learning-center/equipment-brands/hvac-warranty-explained">HVAC warranty explained</a> for the full picture.
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3. Waiting until tax time to find the AHRI certificate
The AHRI Certificate of Certified Product Performance is what the IRS asks for. It shows the matched indoor + outdoor combination and the certified performance numbers. Get it at commissioning, save the PDF, and put it with the invoice. Trying to reconstruct it eight months later is a real headache.
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4. Assuming the installer files the SWEPCO paperwork
Some do, most don't — unless you ask. When you're comparing bids, ask each contractor whether they submit the SWEPCO rebate on your behalf, and if not, whether they'll at least pre-fill the customer sections and give you the completed forms at handoff.
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5. Overshooting the annual 25C cap
If you install a heat pump ($2,000 cap) and a qualifying furnace ($600 cap) and add a home energy audit ($150 cap) in the same calendar year, that's $2,750 of credit — under the $3,200 annual total. But if you also spend $1,200 on qualifying insulation ($1,200 cap), you'd hit $3,950 in category credits and only $3,200 counts. If a project can straddle December 31, sometimes it should.
The paperwork trail we hand our customers
At the close of a qualifying install, our commissioning packet includes the following. If your installer isn't giving you all of it, ask — and if they can't produce it, that's a bid you don't want.
AHRI matched-system certificate
PDF from the AHRI Directory showing the specific indoor + outdoor combination we installed, with certified SEER2, EER2, and HSPF2 numbers. This is the IRS-facing document for 25C.
Manufacturer warranty registration confirmation
Email or portal screenshot from the manufacturer confirming your equipment is registered under your name with the correct install date.
Line-itemized invoice
Equipment (with model numbers), installation labor, permit fee, thermostat, and any ancillary items broken out separately — the format your tax preparer will need to substantiate the 25C credit.
SWEPCO application forms
Pre-filled with equipment details, install date, contractor information — leaving only the customer signature and account number for you to complete.
Commissioning report
Refrigerant charge, static pressure, temperature drop, and other measured values at start-up. Not required for the credit, but valuable if a future warranty claim ever asks whether the system was correctly installed.
If you're weighing a heat pump specifically for the stacked-incentive math, our heat pumps in Van Buren guide covers whether one is right for your home in the first place, and the AC vs. heat pump comparison is the decision framework we use in the field.
Frequently asked
Do I have to itemize on my taxes to claim the 25C credit? +
No — the 25C credit is claimed on IRS Form 5695 as a nonrefundable credit and reduces your tax liability directly, regardless of whether you itemize deductions. You do need enough federal tax liability to absorb it; the credit doesn't generate a refund on its own if you owe zero federal tax.
Can I claim 25C for equipment I install myself? +
Only the equipment cost is credit-eligible for DIY installs — labor is not, and most HVAC installations legally require a licensed contractor and a permit anyway. See our permits and code guide for what's required in Van Buren.
Are SWEPCO rebates taxable income? +
Utility efficiency rebates are generally treated as a reduction in the cost basis of the equipment rather than income, but this is a question for your tax preparer, not your HVAC contractor. What we can say: the amount of the SWEPCO rebate should reduce the equipment cost used to compute the 25C credit, not stack on top of it.
What if I install this year and don't file taxes until April of next year? +
The credit is claimed for the tax year the equipment was placed in service — meaning installed and operational. If you install in December 2026 and file in April 2027, the credit goes on your 2026 return. Save the AHRI certificate and invoice for at least three years after filing.
Are there Arkansas state-level HVAC incentives on top of these? +
As of 2026, Arkansas does not offer a state income-tax credit for residential HVAC equipment beyond the federal 25C. [GATHER: verify current status of any Arkansas state HVAC or efficiency incentives before publish.] The utility-side rebate through SWEPCO is where the state-adjacent money is.