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Tax incentives for insulation, windows, doors and more

You can get federal money for weatherizing your nome

Vicky Volvovski
March 4, 2023

With the 25C tax credit, you can deduct 30% of your weatherization project expenses (up to $1,200) from your year end taxes. However, there are caps on specific categories of spending:

  • Insulation and air sealing: $1,200
  • Doors: $250 per door, up to $500
  • Windows: $600
  • Energy audit: $150
  • Electrical panel upgrade: $600

The tax credit resets each year.


To illustrate how this works, here are a few examples.

Home #1

Homeowners start with an energy audit to find out what weatherization projects they need to do. They learn that their attic needs insulation, and they need to replace their front door because it's letting lots of heat escape.

Item Cost Tax deduction Remaining credit
for the year
Energy audit $300 $150 $1,050
Attic insulation $1,000 $1,000 $50
Door $300 $50 $0

Home #2

Homeowners already know where their problem areas are: they need to replace their living room windows. Additionally, they need to add some air sealing around the windows upstairs and re-insulate the envelope of their home. They choose to break the project up across two years.

In year 1:

Item Cost Tax deduction Remaining credit
for the year
Upstairs windows $800 $600 $600
Air sealing $900 $600 $0

In year 2:

Item Cost Tax deduction Remaining credit
for the year
Envelope insulation $5,000 $1,200 $0

If you have any questions about how the 25C credit applies to your projects, reach out to us at

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