Citizens for Tax Justice has created an online calculator that will tell you what you’re likely to pay in income taxes and payroll taxes under three different scenarios:
1. Congress extends all the Bush tax income tax cuts as Congressional Republicans propose,
2. Congress extends most, but not all, of the income tax cuts as President Obama proposes, or
3. Congress simply allows all the tax cuts to expire.
The online calculator also tells you what income percentile you fall into and how much of the tax cuts in a given scenario will go to people in higher percentiles than you (people richer than you).Bush Tax Cut Proposal Calculator