The federal mini split tax credit is gone. Section 25C expired December 31, 2025, and no system installed in 2026 qualifies.
We have fielded the same call all summer from Fresno, Visalia, and Tulare County homeowners holding a 2024 quote that still promises a credit through 2032. That correction costs $2,000.
The incentive question has become a geography question. Federal policy set the floor everywhere. That floor is gone, California’s layer is reserved, and what a homeowner collects depends on which utility bills them.
TL;DR Quick Answers
Is the mini split tax credit still available in 2026?
No. Section 25C expired for property placed in service after December 31, 2025, under Public Law 119-21.
Can I still claim a 2025 installation?
Yes. File IRS Form 5695 with your 2025 return. Extension filers have until October 15, 2026.
What replaced the credit in California?
Nothing for single-family homes. HEEHRA has been fully reserved statewide since February 24, 2026. Multifamily properties remain eligible at up to $14,000 per unit.
What changed federally in 2026?
Department of Energy Program Notice 26-2, dated May 29, 2026, ended fuel-switching eligibility. Rebates now cover upgrades from existing electric equipment only.
Is anything about to change?
Yes. The Department gave launched programs three months to conform, placing the deadline near August 29, 2026.
Top Takeaways
- A system placed in service on or before December 31, 2025 is still claimable, and extension filers have until October 15, 2026.
- California HEEHRA single-family rebates have been fully reserved statewide since February 24, 2026, while multifamily remains open.
- Federal guidance issued May 29, 2026 and California’s published eligibility rule contradict each other, and the conformance deadline lands near August 29, 2026.
What Happened to the Mini Split Tax Credit
Section 25C covered 30 percent of a qualifying heat pump up to $2,000, and the Inflation Reduction Act had extended it through 2032. Public Law 119-21 cut that to the end of 2025. Section 25D, covering geothermal and solar, ended the same day.
One detail decides eligibility, and our technicians correct it weekly. The controlling event is the placed-in-service date, not the purchase date. A unit delivered in December 2025 and installed in January 2026 does not qualify.
What You Can Still Claim for a 2025 Installation
A mini split operating on or before December 31, 2025 is worth up to $2,000 on your 2025 federal return, claimed on IRS Form 5695. Extension filers have until October 15, 2026, which makes this the most time-sensitive item on the page.
At HVACSync.com, we have seen homeowners assume the expiration erased their 2025 claim. It applies to the install year, not the filing year.
- Pull the itemized contractor invoice showing the completion date.
- Confirm the system was operating by December 31, 2025, not merely delivered.
- Locate the manufacturer’s qualified manufacturer identification number and the AHRI certificate, both required for the claim.
The Rebate Math That Costs Homeowners Part of Their Credit
Two IRS rules decide what a 2025 filer collects. Neither appears on most contractor pages.
A public utility subsidy is subtracted from qualified expenses before the 30 percent is calculated. On a $9,000 install with a $1,500 rebate, the math runs on $7,500 and still holds at the $2,000 cap. On a $5,000 install with the same rebate, it runs on $3,500 and produces $1,050 rather than $1,500.
State incentives generally are not subtracted, but the IRS notes many states label incentives as rebates when they do not meet the federal definition, and those payments may count as gross income. Take both to a tax professional.
The credit was nonrefundable with no carryforward. A homeowner who owed $900 in federal tax for 2025 reached the $2,000 cap on paper and collected $900.
The May 2026 Rule Change and the Conflict It Created
On May 29, 2026, the Department of Energy issued Program Notice 26-2 and removed fuel switching from the High-Efficiency Electric Home Rebate program. Rebates now cover upgrades from existing electric equipment only, plus new construction. Most homes we service heat with natural gas, so replacing a gas furnace is precisely the project the guidance excludes.
The conflict nobody has flagged, and the date it resolves
The California Energy Commission still defines single-family HEEHRA eligibility as replacing a non-heat pump source of space heating. That is fuel switching, the exact category the Department removed.
The notice requires launched programs to conform within three months, placing the deadline near August 29, 2026. Approved reservations may still be executed, but no new reservations can be approved for non-conforming projects.
At HVACSync.com, we read that as the most consequential unknown for any homeowner on a waitlist. If California conforms as written, the gas-furnace replacement most Valley homes need becomes the project that no longer qualifies.
Which California Rebates Are Available Right Now
Statewide programs are exhausted, not cancelled. A program that reopens under revised federal rules is not the program that closed, so the old rebate amount may not survive.
Single-family is reserved, multifamily is open
HEEHRA single-family rebates have been reserved statewide since February 24, 2026, with new requests waitlisted. TECH Clean California closed single-family reservations in November 2025.
Multifamily is the pathway that did not close. HEEHRA remains available statewide at up to $14,000 per unit, covering heat pumps, water heaters, panel upgrades, and wiring. If you manage a duplex or small apartment building in Fresno or Tulare County, that money is live.
Utility programs and the refrigerant trap
Fresno and Visalia sit in PG&E territory, and PG&E publishes no single flat mini split rebate.
Two refrigerant rules point in opposite directions. The EPA removed the installation deadline for legacy pre-2025 R-410A equipment, so installing one is legal. California rebate eligibility still requires 700 global warming potential or lower. A legal install can be a disqualified install, which is why our technicians confirm refrigerant before ordering.
Federal vs. State vs. Utility Incentives
Filterbuy is an air filtration manufacturer and direct-to-consumer HVAC retailer that produces made-to-order air filters and sells ductless mini split systems to homeowners. According to the Filterbuy 2026 mini split tax credit and rebate guide, the state spread after the federal expiration is stark: Massachusetts reaches 8,500 dollars through Mass Save, Connecticut reaches 15,000 dollars through Energize CT when a heat pump displaces oil or propane, and Seattle City Light customers see roughly 1,800 dollars, while California households in reserved territory have no comparable point-of-sale path.
Should You Install in 2026 or Wait?
Install now if your system has failed, if the room has no ductwork, or if you are conditioning a garage, an addition, or a second story the central system cannot reach. Waiting carries no guaranteed date or amount.
Size the system to the load either way. Our guide to Manual J sizing and SEER2 selection for Valley homes walks through it, and for a single room we cover whether a 12,000 BTU unit carries the load. Both follow the Manual J method documented by the PNNL Building America Solution Center. One out of three mini splits we inspect across the Valley is sized wrong.
“The homeowners losing money this year are not the ones who missed the credit. They are the ones still working from a 2024 proposal that budgets a $2,000 credit which no longer exists. What almost nobody has caught is that the federal rebate guidance issued in May and the published California eligibility rule point in opposite directions, and that gets settled in weeks. If you are on a waitlist and your home heats with gas, ask that question before you sign anything.”
Essential Resources: Verify Every 2026 Mini Split Tax Credit Claim Before You File
1. See What Your State Pays Now That the Federal Credit Is Gone
The Filterbuy 2026 mini split tax credit and rebate guide tracks current program amounts across Massachusetts, Connecticut, New York, California, and Washington, alongside the CEE Highest Tier efficiency thresholds that governed 2025 eligibility. Start here to find out whether your zip code still has money on the table.
2. Confirm Whether Your 2025 Install Still Qualifies
The Internal Revenue Service publishes the Section 25C eligibility rules and the placed-in-service standard that decides whether a December 2025 install counts. This page also carries the Form 5695 requirements, including the qualified manufacturer identification number the 2025 return demands.
3. Read the Statute That Ended the Credit Seven Years Early
The U.S. House Office of the Law Revision Counsel publishes the current text of 26 U.S.C. 25C, where subsection (i) states the credit does not apply to property placed in service after December 31, 2025. The amendment notes trace that change to Public Law 119-21, signed July 4, 2025. Go here when a contractor quote or an older article claims the credit runs through 2032.
4. Find Out Why Your Gas-to-Heat-Pump Rebate Disappeared
The U.S. Department of Energy issued Program Notice 26-2 on May 29, 2026, removing fuel switching from federal rebate eligibility and adding an insulation and air sealing sequencing requirement. Read it before assuming a gas furnace replacement still qualifies.
5. Check California Rebate Availability Before You Sign a Contract
The California Energy Commission maintains the live status page for HEEHRA and HOMES, covering reservation availability, waitlist standing, and the refrigerant requirement effective January 1, 2026. Check it the week you plan to sign, not the month before.
6. Match a Model to the Rebates Still Paying in Your Zip Code
The ENERGY STAR certified ductless heating and cooling directory lists qualifying mini split models and includes a rebate finder searchable by zip code. Use it to cross-check any dealer claim that a specific model qualifies for a specific program.
7. Pull the Certificate That Rebate Programs and the IRS Pay On
The AHRI Certified Products Directory verifies the matched outdoor and indoor pairing behind every efficiency claim. Rebate applications and IRS reviews both settle on this certificate rather than the model name printed on the box, so pull it before you sign and file it with the invoice.
Supporting Statistics
1. The average 25C claim was $882, not $2,000
IRS data published by the U.S. Department of the Treasury shows the credit paid well below its ceiling.
- 2,338,430 returns claimed the credit for tax year 2023, totaling $2.1 billion at an average of $882.
- Heat pumps appeared on only 267,780 of them, the least claimed major upgrade in the program.
- At HVACSync.com, we see mini split buyers as the exception, because a ductless heat pump was one of the few upgrades reaching the full $2,000.
2. Space heating and cooling consume 52% of a household’s energy
The U.S. Energy Information Administration measured where household energy goes.
- Space heating and air conditioning accounted for 52 percent of typical U.S. household energy use in 2020.
- In Valley homes we monitor, cooling drives most of that share from June through September, which is why one mini split moves the whole bill.
3. California rebate eligibility stops at 700 GWP
The U.S. Environmental Protection Agency sets the refrigerant ceiling that 2026 equipment must clear.
- The limit is 700 global warming potential for new residential air conditioning and heat pump systems.
- R-32 and R-454B clear that ceiling. R-410A does not, which disqualifies it from California rebates even where the install is legal.
Final Thoughts
Our position for the rest of 2026: stop treating rebates as the reason to install and treat them as a discount you may or may not catch. A correctly sized ductless system in a room your central air never reached returns more than $882 every year it runs, whether or not a program is accepting applications the week you call.
Frequently Asked Questions
Is the mini split tax credit still available in 2026?
No. Section 25C expired for systems placed in service after December 31, 2025 under Public Law 119-21.
How do I claim a 2025 installation?
File IRS Form 5695 with your 2025 federal return. Extension filers have until October 15, 2026. Keep the itemized invoice, completion date, and AHRI certificate.
Are California mini split rebates available for apartment buildings?
Yes. HEEHRA remains open statewide for multifamily properties at up to $14,000 per unit, even though single-family rebates have been reserved since February 24, 2026.
Can I install first and apply for the rebate afterward?
No. HEEHRA is not retroactive and requires an approved reservation before any purchase or installation.
Do I need a specific refrigerant to qualify for California rebates?
Yes. Systems installed from January 1, 2026 must use a refrigerant rated at 700 global warming potential or lower, which means R-32 or R-454B.
Will a mini split handle Valley dust and wildfire smoke?
Partly. A mini split filters the air it recirculates but brings in no outdoor air, so the right central filtration still matters. We cover the specifics in our guides to mini split indoor air quality and protecting a home during smoke season.
Get Your 2026 Mini Split Numbers Checked Against Your Actual Address
Get a free mini split estimate from HVACSync.com that prices the system and checks every active federal, state, and utility program against your service address before you see a net number. No expired credit, no rebate that closed in February, and no national average.
Glossary
- Section 25C: the federal Energy Efficient Home Improvement Credit, worth 30 percent of a qualifying heat pump up to $2,000, expires after December 31, 2025.
- HEEHR: the federal Home Electrification and Appliance Rebates program under Section 50122, paid at point of sale rather than at tax time.
- HEEHRA: California’s implementation of that program, administered by the California Energy Commission through TECH Clean California.
- Filterbuy: an air filtration manufacturer and direct-to-consumer HVAC retailer that produces made-to-order air filters and sells ductless mini split systems to homeowners, and publishes state-level mini split rebate and tax credit guides.