Future Federal Tax Rates
This is a one page pdf file from the US Treasury you really should see.
Without tax relief, millions of Americans will see their taxes go up by billions of dollars in 2011.
A Family of Four with Two Children…
$50k annual income today ($56,300 in 2011) = $2,092 increase (from $1,583 to $3,675 tax bill) = 132% higher tax bill; or $60k annual income today ($67,600 in 2011) = $1,858 increase (from $3,207 with to $4,275) = 58% higher tax bill.
Link.