2011 Energy Efficient Tax Credit

By Robert Robillard on Contractor Advice

2011 Energy Efficient Tax Credit

2011 Energy Efficient Building Products Federal Tax Credit:

The “Tax Relief, Unemployment Insurance Reauthorization and Job Creation Act”  (H.R. 4853) signed into law on December 17, 2010, extended the federal credit for certain residential energy products for one year at reduced levels from the 2009-2010 credit.

I have summarized the credits below:


The credit covers windows with an Energy Star rating, exterior doors and skylights, and certain insulation, HVAC, metal and asphalt roofing products, biomass stoves and water heaters. EnergyStar.gov has a complete list of qualifying products.

These products must be installed in a homeowner’s primary residence.  New  construction are not eligible.

2011 Energy Efficient Tax Credit

Installation costs are not included for windows, doors, skylights, insulation or roofing.

You can apply for a credit of 10% or up to $500 of the purchase price of qualifying products. Certain products have a cap on them, including:

  • Windows and skylights, $200 max
  • Advanced main air circulating fan, $50 max
  • Qualified natural gas, propane or oil furnace or hot water boiler, $150 max
  • Any item of energy-efficient building property (HVAC, water heaters, biomass stove), $300 max

Lifetime Cap:

Congress enacted an extension of the existing credit with a new lifetime limit of $500 in aggregate credits that a homeowner can claim from Jan 1, 2006 to Dec. 31, 2011.

It is not on top of the $1,500 limit in 2009-2010.  So if they have already reached the $500 aggregate limit, they are no longer eligible to claim the credit in 2011.

The $500 aggregate lifetime limit is for any combination of all qualifying products.  If they claimed less than $500, they can claim the difference up to the $200 cap for windows and skylights and $500 for other products (except those with lower caps, listed above).


This tax credit is in effect for products installed in a consumer’s primary residence between January 1 and December 31, 2011.

Additional Information:

The IRS is expected to post official guidance at www.irs.gov in early 2011.

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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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