HVAC systems that may have access to for the 2023 tax credit

The Energy Efficient Home Improvement Credit for 2023 covered certain HVAC equipment if it met Department of Energy efficiency standards. The credit was not automatic — your system had to reach a specific efficiency rating, and you had to install it in your primary residence between January 1 and December 31, 2023.

The IRS allowed a credit of up to $600 for a may have access to heat pump, air conditioner, or furnace. Central air conditioners and heat pumps had to meet SEER2 ratings of 16 or higher. Furnaces had to reach AFUE (Annual Fuel Utilization Efficiency) of 95% or higher. Window and portable air conditioners did not may have access to, and neither did repair or replacement of ductwork alone.

You claimed this credit on Form 5695 when you filed your 2023 tax return. The credit reduced your tax bill dollar-for-dollar, not your taxable income. You could not carry forward unused credit to future years — if your credit exceeded your tax liability, you lost the difference.

Key Takeaways

  • Heat pumps and central air conditioners needed SEER2 ratings of 16 or higher; furnaces needed AFUE of 95% or higher to may have access to for the $600 credit.
  • The equipment had to be installed in your primary home between January 1 and December 31, 2023 — the credit does not cover systems installed in 2024 or earlier years.
  • You report the credit on Form 5695 when filing your 2023 return, and it reduces your tax bill directly, not your income.
  • The manufacturer or installer should provide documentation showing the SEER2 or AFUE rating; keep this with your tax records in case the IRS asks.
  • If your tax bill was smaller than the credit amount, you cannot use the leftover credit in future years.

SEER2 and AFUE ratings explained

SEER2 (Seasonal Energy Efficiency Ratio 2) measures how efficiently a heat pump or air conditioner cools your home over a full season. The higher the SEER2, the less electricity it uses. A SEER2 of 16 was the minimum for the 2023 credit. Most modern high-efficiency units exceed this — many range from 16 to 22 SEER2.

AFUE (Annual Fuel Utilization Efficiency) measures how much of the fuel a furnace burns actually heats your home, versus how much escapes as waste. An AFUE of 95% means 95 cents of every dollar spent on fuel produces heat. The 2023 credit required 95% AFUE or higher. Standard furnaces typically run 80–90% AFUE; high-efficiency models reach 95–98%.

Your installer or the equipment manufacturer should provide a specification sheet listing the SEER2 or AFUE rating. If you bought the system in 2023 and installed it that year, ask the contractor for written confirmation of both the rating and the installation date. This document is your proof if you need to show the IRS why you claimed the credit.

What the IRS required as documentation

The IRS did not require you to attach receipts or manufacturer specs to Form 5695 when you filed. However, you had to keep them for your records. If the IRS audited your return, they would ask to see proof that the equipment met the efficiency standard and that you installed it in 2023.

The documents you needed to keep were: the contractor's invoice showing the installation date, the manufacturer's specification sheet or Energy Guide label showing the SEER2 or AFUE rating, and proof of payment (credit card statement, cancelled check, or bank transfer). Some contractors provide a single document that includes all three pieces of information.

If you installed the system yourself, you still needed the manufacturer's documentation showing the rating. A receipt alone was not enough — the IRS needed to see that the equipment actually met the standard. If you cannot locate the spec sheet, contact the manufacturer with your model number; they can usually email or mail you a copy.

Systems that did not may have access to

Window air conditioners and portable air conditioners did not may have access to, even if they were energy-efficient. The credit applied only to central systems — equipment that cools or heats your entire home through ductwork or a heat pump system.

Ductless mini-split heat pumps were a gray area in 2023. Some may have access to if they met SEER2 16 or higher and were installed as a primary heating or cooling system. Others did not, depending on how the IRS interpreted the installation. If you installed a mini-split in 2023, check the manufacturer's documentation and consider consulting a tax professional to determine whether your system met the criteria.

Repairs and maintenance did not may have access to. Replacing a compressor, fixing a refrigerant leak, or cleaning ducts did not trigger the credit. The system had to be new equipment installed for the first time in your home, or a replacement of an existing system with a new may have access to unit.

How to report the credit on your tax return

You reported the HVAC credit on Form 5695, Part II, line 7. You then transferred the credit amount to Form 1040, line 30 (or the equivalent line on your return form). The credit reduced your total tax liability for 2023.

If you used tax software, the program walked you through Form 5695 and asked whether you installed a may have access to heat pump, air conditioner, or furnace. You entered the cost of the equipment and the credit amount (up to $600). The software calculated the credit and placed it in the correct spot on your return.

If you filed by hand or with a tax professional, you completed Form 5695 yourself or gave your contractor's invoice and the equipment specs to your preparer. They filled in the form and ensured the credit was reported correctly. The form is available on the IRS website as a PDF you can print and fill by hand, or you can read it into tax software.

What happened if your tax bill was less than the credit

The HVAC credit was non-refundable, meaning it could not exceed your tax liability. If you owed $400 in federal income tax but had a $600 credit, the credit would reduce your bill to zero, but you would not receive a $200 refund. The extra $200 was lost.

You could not carry the unused credit forward to 2024 or any future year. The credit was only for the 2023 tax year. If you expected your credit to exceed your tax bill, a tax professional could help you explore whether other credits or deductions might increase your tax liability enough to use the full amount.

Installation date and proof

The system had to be installed between January 1 and December 31, 2023. The installation date was the date the contractor finished the work and the system was operational, not the date you signed the contract or paid the invoice. If you ordered the equipment in December 2022 but the contractor did not finish installation until January 2024, the system did not may have access to for the 2023 credit.

Your contractor's final invoice should show the completion date. If it does not, ask the contractor to provide a signed statement confirming when the installation was finished. This is especially important if you paid in one year but the work was completed in another.

If you installed the system yourself, document the date you finished and made the system operational. Take photos with timestamps, or keep a dated receipt from the supplier showing when you purchased the equipment. The IRS may ask for this if they question the installation date.

Frequently Asked Questions

Can I claim the credit if I installed the HVAC system in late 2022 or early 2024?

No. The credit was only for systems installed between January 1 and December 31, 2023. If your system was installed in 2022, you could have claimed it on your 2022 return if you filed before the important date. If it was installed in 2024, you would report it on your 2024 return, not 2023.

What if my contractor did not give me the SEER2 or AFUE rating?

Contact the contractor and ask for the manufacturer's specification sheet or Energy Guide label. If they cannot provide it, contact the equipment manufacturer directly with your model number. You need this documentation to prove the system may have access to. Without it, you cannot claim the credit.

Do I have to attach Form 5695 to my tax return when I file?

No, but you must keep it with your records. If you file electronically, the form is submitted as part of your return file. If you file by mail, include Form 5695 with your return. Either way, store the original and your supporting documents (contractor invoice, spec sheet, proof of payment) for at least three years.

Can I claim the credit if I financed the system through a loan?

Yes. The credit is based on the cost of the equipment and installation, not how you paid for it. Whether you paid cash, used a credit card, took out a loan, or used a financing plan from the contractor, you can claim the credit as long as the system met the efficiency standard and was installed in 2023.

What if I replaced two systems in 2023, like a furnace and an air conditioner?

The credit was $600 per system, up to a maximum of $3,200 per year for all energy-efficient home improvements combined. If you installed a may have access to furnace and a may have access to air conditioner in 2023, you could claim $600 for each, for a total of $1,200 — as long as your total credits for all home improvements did not exceed $3,200.