While the government has long offered tax credits for green home improvements like solar panels, federal tax credits are also available again this year for other home improvements such as window and door replacements. The credits were available last year as well and those credits are still available at a deduction of 30 percent of the cost of materials. Labor costs are not included. So if your project cost say $10,000.00 and $2,000.00 of that total was for the labor to install it you would be eligible for a tax credit of 30% of the $8,000.00 balance or $2,400.00.