President Obama promised in his 2011 State of the Union Address that American taxpayers should be able to see exactly how their federal tax dollars are spent. Latter that year the Federal Government launched the "Taxpayer Receipt" program breaking down exactly where and what your individual tax dollars go to.
With the White House's Federal Tax Payer Receipt program tax payers can enter the data from their actual tax returns, enter data that is estimated, or choose to use one of the "common scenarios" to see a breakdown of what their tax dollars will be spent on.
The screenshot you see below is based on a selection of the scenario for a single person earning $25,000. Jump on over to the Whitehouse.gov site and see exacly where your tax dollars end up.