Rebates and tax credits in Idaho

Money toward an HRV or ERV

Programs that pay toward the unit itself. Some take the money off at the distributor, so ask whether an installer’s price already includes it.

We didn’t find a program in Idaho that names HRVs or ERVs. Your electric and gas utilities are still worth asking: search “[utility] HRV rebate” and “[utility] ERV rebate”.

Federal home energy rebates

Federal money that Idaho runs. HEAR has a category for “insulation, air sealing, and ventilation” worth up to $1,600 for households under 150% of area median income; each state decides what counts as ventilation. ENERGY STAR’s table for HEAR says this category requires ENERGY STAR certification, and ENERGY STAR’s U.S. criteria for ventilation cover fans, not HRVs or ERVs, so ask the program whether an HRV or ERV counts before relying on it. HOMES pays toward whole-home upgrades modeled to save energy.

Air sealing and insulation

These programs are more common than ventilation rebates, and sealing a house is often what makes it need planned fresh air. If a program is sealing yours, ask whether it requires ventilation afterward and whether it pays for it.

• Wattsmart insulation and air sealing instant discounts

  Rocky Mountain Power · Rocky Mountain Power customers in Idaho

  Instant discounts on insulation and air sealing; no amount listed

  The page lists no conditions or dates for these discounts.

  Ventilation not mentioned in what we read

• ThermWise weatherization rebates

  Enbridge Gas · Enbridge Gas customers in Idaho (one rebate table covers Utah, Wyoming and Idaho)

  Attic insulation $0.32 or $0.08 per sq ft by tier; wall $0.30 per sq ft; floor $0.20 per sq ft; air sealing (single-family) $200 per job plus $0.10 per sq ft, up to $850; duct sealing and insulation $100 plus $5.25 per linear ft, up to $450 (single-family)

  Air sealing and duct sealing need a ThermWise Authorized Contractor; insulation may be self-installed or contractor-installed. No ventilation, HRV or ERV measures are listed.

  Ventilation not mentioned in what we read

State tax credits

• Energy efficiency upgrade deduction (Idaho Code 63-3022B)

  Not stated in the source we read

  Income tax deduction for amounts paid to install energy efficiency upgrades in an existing Idaho primary residence (one built, under construction or permitted on or before January 1, 2002): insulation added to existing insulation, more efficient replacement windows, storm windows, weatherstripping and caulking, and duct sealing and insulation, meeting the energy code in effect that year.

  Whether ventilation counts isn’t stated

Low-income help

The federal Weatherization Assistance Program can pay for air sealing and insulation for households that qualify by income. Your state energy office can say who runs it.

Before you sign

1. Don’t start work yet. Many programs need pre-approval, a participating contractor or a test first, and work begun early often can’t qualify.
2. Write down your electric and gas utilities. Rebates usually follow the utility, not the town.
3. Read the conditions: a listed contractor, a qualifying model, your heating fuel, income limits, and install and claim deadlines.
4. Ask each installer whether any discount is already in their price, and who files the paperwork.
5. Get it in writing: each rebate, who applies for it, and what happens to the price if it’s denied.

More on costs and how to check: What drives the cost of ventilation and How to compare quotes.

Worth knowing

• Intermountain Gas's 2026 residential rebates list only high-efficiency furnaces, boilers, combination boilers and tankless water heaters; no insulation, air sealing or ventilation. Its $900 Whole Home rebate is for new homes with a HERS rating certificate. (s11, s12)
• The Idaho deduction source is a State Tax Commission decision about tax years 2021 to 2023. Its list of qualifying upgrades does not include ventilation equipment. (s13)