Maybe some colour categorisation + colour coding so it's easy to see how much different bits cost.
http://imgur.com/gxSxk
As you get more data you could maybe make it possible to drill down to get more detail too.
Your rock, nicely done. One suggestion: Maybe base the calculator off of Gross Income? That number is arguably better known by people than taxes paid. Just a thought.
Quick Q - did u email to 3rd way? NPR?
You've got a misplaced decimal in your calculations somewhere, as your numbers add up to less than 10% of what I put in.
heh, I fixed it.
I emailed Jacob @ NPR (article writer) as well as the paper authors, share stats if you would as they come in -
Nice idea, so I put something up at: http://www.yourtaxreceipt.com
Haven't added the calculator yet, trying to garner from the feedback about how to be more accurate in reporting (given the feelings about the npr depiction).