After heroic feats of arithmetic and a your-guess-is-as-good-as-mine interpretation of opaque rules and guidelines, millions of Americans will file their taxes by today, April 15. But where does all that money actually go?

Introducing trade-offs, a new tool in NPP's tax day arsenal. In addition to generating a personal income tax receipt, you can now see how much your state, county, congressional district, and town contributed to federal programs and reallocate those tax dollars to match your personal priorities.

Taxes are due on April 15 – right around the corner – though few Americans know where their taxes actually go. So NPP is launching Tax Day 2013 – a suite of materials, including this chart that shows how Washington spent every one of your income tax dollars in 2012.

Our final pie of Pie Week! We showed you total federal spending, mandatory spending, and discretionary spending. Today's flavor of pie? Where the money comes from to fund the federal budget.

It's tax week here at National Priorities Project. You might have seen our Tax Day numbers, or watched our Tax Day video on YouTube, or gotten your personalized tax receipt. If you did, you saw that 27 cents of every 2011 federal income tax dollar went to the military, while ...

Tax day is a week away, and this year National Priorities Project writes you a receipt for how much you paid in federal income taxes-- so you can see exactly how much of your own 2011 income taxes went to the military, health programs, education, and everything else. But some ...

We’ve gotten lots of great e-mails and comments about Tax Day, which we launched on Friday. But there’s been some confusion about what’s included in our breakdown of your federal income tax dollar. There are two main sources of confusion: First, many people have written to ask why Tax Day ...