Many people scrambled to get qualifying improvements installed before the end of 2009 to be able to claim tax credits—don’t forget to claim the credits if you did! It’s important to remember that ARRA extended these energy-efficiency home improvement tax credits through December 31, 2010. And thus the $1,500 credit is still available for qualifying insulation, furnace and air-conditioner replacements, window and door replacement, and other measures. We’ve got a good summary of measures that qualify and answers to some frequently asked questions on these federal tax credits for energy-efficiency improvements. See also IRS 2009 Form 5695 which includes instructions and requirements.