Sources of information needed for energy credit for installing new windows on main home, 2025

WR1970 — Mon, 09 Feb 2026 16:08:56 GMT

We installed new windows on our main home in February, 2025. The windows were purchased and installed by Renewal by Andersen. The agreement only shows individual windows sizes and number. The contract does not show the individual cost of each window, only an all-inclusive amount for windows and installation. I called the company and they cannot furnish me that information. Their reference to the energy credit says to consult with our tax advisor. Has anyone had this issue and were able to get the information needed? If so, how? I am consulting with our tax advisor; however, just curious if anyone has resolved this issue to be able to use this credit.

Re: Sources of information needed for energy credit for installing new windows on main home, 2025

Vanessa A — Mon, 09 Feb 2026 16:47:57 GMT

In order to claim the credit for 2025, you will need the QMID from the manufacturer and they must meet energy star criteria and ONLY the cost of the windows is considered for the credit, not the cost of installation. One thing you can do is use a "reasonable estimate" to determine the price of the windows versus the cost of labor. The credit is limited to $600 total for your windows. This means, anything you allocate over $1,800 is not going to affect your credit.

Make sure you meet the necessary criteria as a buyer and the exterior doors, windows, skylights and insulation materials you plan to buy are eligible for the credit.

Step 1: Check eligibility

The manufacturer, retailer or installer should be able to help you validate eligibility.
Check on the Energy Star webpage for residential windows, doors, and skylights eligible products for where you live.

Step 3: Get documentation

While documentation is not required to be filed with your tax return, it may be required if your tax return is audited. The IRS strongly recommends you retain your purchase receipts and installation records as well as any Energy Star and/or National Fenestration Rating Council labels affixed to the windows, skylights, and doors. These documents will also be needed to substantiate your adjusted basis if the property is eventually sold.

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Sources of information needed for energy credit for installing new windows on main home, 2025

Re: Sources of information needed for energy credit for installing new windows on main home, 2025

Step 1: Check eligibility

Step 3: Get documentation