Under the federal Inflation Reduction Act, California homeowners can claim a tax credit of 30% of the cost of energy-efficient windows, up to a maximum of $600 per year. This credit applies to products installed through 2032 that meet Energy Star "Most Efficient" certification requirements.
Not all windows qualify for tax credits. To be eligible, exterior windows and skylights must meet Energy Star criteria or similar energy efficiency standards. Energy Star certified products are tested and verified by the Environmental Protection Agency to ensure they meet or exceed energy efficiency requirements.
Energy-efficient doors, windows and insulation
Exterior doors have a limit of $250 per door and a total limit of $500. Exterior windows and skylights have a $600 total limit. Insulation and air sealing materials or systems have no additional limit outside of the general $1,200 maximum.
In 2025, homeowners can claim 30% of the cost of their qualifying windows, up to a maximum of $600 per year. This applies to windows that meet ENERGY STAR qualifications for energy efficiency. So, if you spend $2,000 on new windows, you can claim $600 back as a credit on your federal taxes.
To qualify for the federal energy tax credit (25C), exterior windows and skylights must be ENERGY STAR Most Efficient certified products, featuring low-E coatings, insulated glass (double/triple-pane), and specific low Solar Heat Gain Coefficient (SHGC) and U-Factor ratings, not just any window type (like double-hung or casement), and you need the manufacturer's certification statement and QMID. You claim 30% of costs up to $600 annually for these products, installed in your primary residence between 2023-2032, by filing IRS Form 5695.
A recent tax law ("One Big Beautiful Bill") introduced a new $6,000 bonus deduction for Americans aged 65 and older, available for tax years 2025-2028, reducing taxable income, not the tax itself, with income phase-outs starting at $75,000 MAGI for singles and $150,000 for joint filers. This deduction adds to existing standard deductions, provides up to $12,000 for couples, and requires a Social Security number and filing status other than Married Filing Separately.
The California Window Replacement Program 2025 helps homeowners upgrade to energy-efficient windows with grants, rebates, and financial aid. If you qualify, applying for these assistance programs can significantly reduce your energy costs and improve your home's comfort and value.
If purchasing a window, door, or skylight off the shelf, look for the ENERGY STAR label for your climate zone next to the NFRC label on the glass.
Exterior doors that meet applicable Energy Star requirements. Credit is limited to $250 per door and $500 total. Exterior windows and skylights that meet Energy Star Most Efficient certification requirements. Credit is limited to $600 total.
This tax credit is effective for products purchased and installed between January 1, 2023, and December 31, 2025.
Double pane windows are designed with two sheets of glass that are separated by a space filled with either air or gas. This space acts as an insulator, reducing the transfer of heat between the interior and exterior of your home.
The replacement windows, doors or skylights must be ENERGY STAR-certified products. You must have a copy of the Manufacturer's Certification Statement to qualify.
In 2025, average window replacement costs range from $700 to $1,500 per window, with specialty styles priced higher. Steel casement windows, awnings, and curtain wall windows offer top performance and premium looks but cost more. Frame material, window size, glazing, and local labor costs are the biggest price factors.
On July 30, 2025 Governor Newsom signed SB 648 into law amending Labor Code section 351 to give the Labor Commissioner power to investigate employee complaints about tips, and issue citations or file a civil action against an employer for taken, withheld, or late gratuities.
For 2025, seniors over 65 get a new $6,000 extra standard deduction (or $12,000 for qualifying married couples) in addition to the existing senior deduction, thanks to the new "One Big Beautiful Bill," phasing out at higher incomes (e.g., $75k single, $150k joint MAGI) and applying through 2028.
Taxpayers who are paying someone to take care of their children or another member of household while they work, may qualify for child and dependent care credit regardless of their income. For tax year 2021, the maximum eligible expense for this credit is $8,000 for one child and $16,000 for two or more.
Upgraded windows, such as double-glazed or insulated windows, can increase your home's value by making it more comfortable and energy-efficient.
Where Does a Home Lose the Most Heat?
Double-pane windows typically cost $350 to $850 per window, including installation, with total project costs varying widely based on material (vinyl, wood, fiberglass), style (double-hung, casement, bay), size, energy efficiency features, and local labor rates, ranging from a few hundred to several thousand dollars per window. Expect to pay more for premium brands or complex installations but save with vinyl frames and simpler styles, while features like Low-E coatings and argon gas enhance efficiency.