HVAC Rebates and Tax Credits in Missouri: What to Check

HVAC rebates in Missouri changed this year, and the main change is a loss: the federal 25C credit is over. What remains for most homeowners is Ameren Missouri's 2026 rebate chart, which runs through December 31, 2026 and reaches you only through its PAYS program. This page was checked on October 30, 2026 and needs review in January 2027.

Is the federal 25C tax credit still available?

No. The IRS says the 25C energy efficient home improvement credit is not allowed for property placed in service after December 31, 2025. That includes heat pumps, central AC and furnaces finished in 2026. Older web pages still advertise a $2,000 heat pump credit, and they are out of date.

If your equipment went in during 2025, ask a tax professional how to claim it on that year's return. For new work, plan the budget without the credit.

What does Ameren Missouri offer in 2026?

Ameren's 2026 chart is valid January 1 through December 31, 2026, and the HVAC rebates run through tier 4 of Pay As You Save, known as PAYS. Ameren's PAYS page describes the process this way: a contractor in the program determines your eligibility and walks you through the offer, and you repay the cost on your monthly bill after installation.

Work must go through a participating contractor, and the contractor submits the paperwork. Ameren's Find a Contractor tool lists who is enrolled. Kenan Corporation makes no claim about Ameren program enrollment on this page, so check the tool for any company you consider, including us.

Which of the three heat pump cases fits your house?

The $2,000 amount is tied to a starting condition, so match your home to the chart first.

The last row is the trap. A homeowner who wants to retire the gas furnace entirely may fall outside the listed cases, and a contractor's enthusiasm is not an eligibility ruling. Ask Ameren to confirm your case in writing.

What does the rebate do to the numbers?

Homeyou's 2025 figures put a heat pump install in the St. Louis area at $5,300 to $6,971 on average. If your job qualifies for $2,000, the gap shrinks to roughly $3,300 to $4,971, and that is arithmetic, not an offer. For mini splits at $500 per ton, a 2-ton system earns $1,000 and a 3-ton system $1,500, but only when the model clears 19 SEER2. Under PAYS, ask whether the rebate lowers the amount you repay on your bill, because we could not confirm how Ameren applies it.

Are Missouri's state home energy rebates live?

Not that we can confirm. Missouri has about $75 million allocated to each of two federally funded programs, HOMES and the electrification program that many sites call HEAR and that state materials call HEEHR. The Missouri Department of Natural Resources was still working toward launch at our last check, and we found no confirmed application window. Some third-party rebate sites list the programs as active, which conflicts with the state's own announcements.

Check dnr.mo.gov/energy yourself. Do not sign a contract on the assumption that a state rebate will arrive.

Where does the state program stand today?

The state record is a timeline of procurement, not payouts. The Department of Natural Resources set a July 2, 2026 deadline for firms to bid on running the program, and its August 20, 2026 release says it selected BDO Government Services, working with the Environmental Improvement and Energy Resources Authority, to deliver the home energy rebates. An October 2026 S&P Global report says federal energy-efficiency rebates were delayed as the heating season began. We found no application window, so the answer is still to check dnr.mo.gov/energy before relying on it.

Should a rebate decide which system you buy?

No, it should break a tie. A heat pump sized wrongly or paired with leaky ducts will disappoint no matter what the rebate paid. Start with a load calculation and the way your house is built, then see which qualifying models fit.

Dual-fuel is worth a look in Missouri winters. The 2026 chart includes dual-fuel cases, which keep a gas furnace as backup on the coldest nights. New split systems made since January 1, 2025 use refrigerant under 700 GWP, usually R-454B or R-32, so ask which one your quote lists.

Should you rush to beat December 31?

Only if the job is already well planned. With about two months left on Ameren's 2026 chart, a rushed install can cost more than the rebate returns. The trade-off is clear: a deadline pushes you to skip the load calculation, compare fewer quotes and accept whatever install date is open.

Use this short list instead:

• Confirm in writing that the contractor is enrolled in Ameren's program, using the Find a Contractor tool.
• Get the load calculation and the quote before you commit to a date.
• Ask which chart applies if the install or the paperwork slips into January.
• Ask what happens to the price if the rebate is denied.
• Walk away from any rebate pitch that expires tonight.

If the rebate disappears but the system is right for the house, you still own the right system. If the system is wrong, no rebate fixes that. Our guide to heat pump versus furnace covers the fit question first.

What should you get in writing before you sign?

Rebates fail on paperwork, not on equipment. Before you sign, ask the contractor to put these in the quote:

• The exact make, model and SEER2 or EER2 rating of each component
• Which rebate you expect, the dollar amount and the program rules it falls under
• Who submits the paperwork and by what date
• Whether the amount is a rebate or a repayment on your utility bill under PAYS
• What happens to the price if the rebate is denied

Photograph the nameplate after install. A mismatch between the quoted and installed model can stall a rebate.

From the field: eligibility is decided before the install

A rebate is easiest to get right at the quote stage, when the efficiency tier and the equipment are still choices. After the crew leaves, a missed requirement is hard to fix. A Google reviewer, Candice F., wrote that Kenan is great at explaining things and giving you options, and options matter most here: a mini split rated 19 SEER2 meets Ameren's per-ton threshold, and one rated 18 does not.

Ask for the choice in writing. If a model misses the rebate cutoff by a hair, a technician can show you the next one up and what it costs. Homeyou's 2025 figures put a heat pump install in the St. Louis area at $5,300 to $6,971 on average across 332 projects, so a $2,000 rebate is large against that range. It is also worth confirming.

Plan the project and confirm the rebate first

Talk to a specialist at (321) 478-0693 to talk through a heat pump installation or a ductless mini split for a home without ducts. We are open 24 hours and give a clear, upfront quote before work begins. Homes in Affton are about 50 minutes from our base near Spanish Lake in normal traffic. Check Ameren's tool and the state's page, then decide.