Illinois Rebate Calculator 2026: What Your Utilities Pay
Illinois rebates come from your electric and gas companies. Pick yours and this calculator adds up what each pays today.
Short answer: Illinois has no open statewide heat pump rebate in 2026. ComEd takes up to $2,000 off a heat pump and up to $750 off a heat pump water heater. Naperville's city electric utility pays up to $1,800 for a heat pump. Nicor Gas and Peoples Gas pay for gas furnaces, water heaters, thermostats and weatherization. Ameren Illinois amounts could not be confirmed.
Planning solar? Try our free Solar Roof Check: type your address to see how many panels fit your roof and which verified solar rebates apply.
How we work it out
- Every amount comes from the program's own page, linked on each result.
- We count only programs that are open today. Programs that start later or have a waitlist are listed but not added.
- Your answers stay in your browser. We only get your email if you ask us to notify you.
- Nobody pays to be included, and installers cannot change what you see.
Every Illinois program in this calculator
| Program | Amount | Rules |
|---|---|---|
| ComEd ducted heat pump | Up to $900 to $2,000 | Instant discount from a ComEd heat pump-trained contractor, by size and efficiency tier. Source (active, verified 2026-10-06) |
| ComEd ductless mini-split | Up to $500 or $1,000 | Under 1.5 tons up to $500, 1.5 tons or more up to $1,000. Source (active, verified 2026-10-06) |
| Naperville Electric heat pump | $900, $1,400 or $1,800 | Replacement air source heat pump. Apply within 120 days. Ends when funding is allocated. Source (active, verified 2026-10-06) |
| ComEd heat pump water heater | Up to $750 | ENERGY STAR model with the required efficiency score. Confirm with ComEd before you buy. Source (active, verified 2026-10-06) |
| Peoples Gas tankless or indirect water heater | Up to $150 | Gas tankless 0.95 UEF or better, or indirect 88% AFUE or better. Apply within 30 days. Source (active, verified 2026-10-06) |
| Nicor Gas water heater | Up to $150 | Gas tankless or condensing or power-vented tank, replacing a gas unit. Source (active, verified 2026-10-06) |
| Peoples Gas furnace | $200 or $225 | 95% or 97% efficient gas furnace. Apply within 30 days. Source (active, verified 2026-10-06) |
| Nicor Gas furnace | $150 or $225 | 95% or 97% efficient gas furnace replacing a gas furnace. Source (active, verified 2026-10-06) |
| Peoples Gas weatherization | Up to $1,200 | Air sealing, attic, wall and duct work by an approved contractor. Insulation must be bundled with air sealing. Source (active, verified 2026-10-06) |
| Nicor Gas weatherization | $150 to $600 per measure | Air sealing $500, attic $400, wall $150, foundation wall $200, duct sealing $600. The total shown adds all five caps. Source (active, verified 2026-10-06) |
| Illinois Home Weatherization Assistance Program | Free if you qualify by income | Households at or below 200% of the federal poverty level. Not added to your total. Source (active, verified 2026-10-06) |
| ComEd smart thermostat | Up to $75 | One per account each year. Extra $75 if installed with a heat pump. Source (active, verified 2026-10-06) |
| Naperville Electric smart thermostat | $75 each, up to two | Any Wi-Fi smart thermostat. Apply within 120 days. Source (active, verified 2026-10-06) |
| Nicor Gas smart thermostat | Up to $25 | One per household on a gas-heated home. Source (active, verified 2026-10-06) |
| Peoples Gas smart thermostat | Up to $25 | Smart thermostat on a home heated with Peoples Gas. Source (active, verified 2026-10-06) |
| Ameren Illinois rebates | Not confirmed | We could not read Ameren Illinois's rebate page. Call Ameren Illinois before you buy. Source (check, verified 2026-10-06) |
Common questions
Is there a statewide heat pump rebate in Illinois?
Not yet. The state's HOMES and HEAR rebates have not launched. Your electric utility is the main source: ComEd pays up to $900 to $2,000 and Naperville Electric pays $900 to $1,800.
Why does the calculator ask for my gas company?
Gas companies pay rebates for furnaces, boilers, water heaters, thermostats and insulation that the electric company does not.
Why does Ameren Illinois show no amount?
We could not read Ameren Illinois's rebate page, so we show no amount rather than guess.
Is the federal tax credit still available?
No. The 25C and 25D credits ended after December 31, 2025.
Can I add all the rebates together?
The total adds programs that pay for different upgrades. Check each program's rules, since a few cannot be combined.
Next: Illinois rebate guide · Top-rated installers by city · Recent rebate changes
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