<prompt> Human: For instance, to see if it would be more beneficial to donate X or Y to charity, etc.? If I were making better money, Id just give a lot, but Im not and I need to be more shrewd.The best way to do this that I can think of is to do a manual version of 2011 taxes with my year-to-date 2012 deductionsincomeetc. It would be a little time consuming, but do-able. Is there a faster way? Are 2012 tax tables the same as 2011s? How accurate would it be?  <response>: Tax calculators and tips -- 2012 Tax EstimatorYou dont need to login or give any personal info. I used it last year and it was pretty close to what I ended up getting back. 