Ok, I made a few changes, income tax is now calculated correctly and I’ve added an option to choose single/married filing status.

[img_assist|nid=7987|title=v2|desc=|link=node|align=left|width=100|height=45]

p.s. click on the picture to see the file. For some reason I can add attachments to images, but I can’t add attachments to comments. Weird.

p.p.s. now it’s not letting me upload any more because I hit my quota of 2 MB of disk usage; at the same time, I can’t delete any of the stuff I uploaded earlier.