How much money does the united states take in taxes each year?

To collect over $2 trillion the IRS would like about an $11 billion for 2008. Will likely be budgeted for much less. See link for wish list budget, which also shows anticipated revenues.

http://www.gao.gov/new.items/d07719t.pdf

Note: 1 trill = 1,000,000,000,000

1 bill = 1,000,000,000

So if we didn't just casually round the collections and you even just said 2.1T....that .1 T is one tenth a Trill or 100 Bill! Their budget is well within the trailing rounding! (If your thinking of arguing something like it costs more to collect taxes than it's worth).