Everyone asks us about the tax credit for window film. If you live in the northern portion of the US, unfortunately it’s a savings you probably won’t qualify for. The government requirements concerning energy tax credits for window film installed in the northern region of th US are as follows:
1) The windows the window film is being applied to must be double-pane insulated units
2) The windows must already have a low-e coating applied to them
3) The windows must have a vinyl frame
4) The installation must be in your principal residence
If you meet these requirements, you will eligible to get back 10% of the cost of the window film (not including the cost of the installation), with a maximum credit of $500 (This post updated 3/1/2011).