Thanks to another portion of last year's stimulus bill, the tax savings for energy-efficient home improvements were themselves improved. Instead of a complicated patchwork of credit amounts, homeowners can claim up to 30 percent of the first $5,000 spent on qualifying residential energy upgrades, or up to $1,500 in tax credits.
Want to go even greener? By installing a solar home heating system, for example, you could get even bigger tax credits.
The new credit format took effect last year, but is running through 2010. This might be the last year, though, so if you need to make home repairs, consider energy-efficient upgrades that could pay off at tax-filing time.