Tax Credit:10% of cost up to $500 or a specific amount from $50 – $300Expires:December 31, 2011Details:Must be an existing home & your principal residence. New construction and rentals do not qualify.

Tax Credit Amount: 10% of the cost, up to $500, but windows are capped at $200.

You do not have to replace all the windows/doors/skylights in your home to qualify. And it doesn’t need to be a replacement either – installing a new window where there wasn’t one previously (like in an addition) qualifies.

Tax Credit does NOT include installation costs.

Source: www.EnergyStar.gov