If what I read is true then the top 15%, about half of the 32% of above middle class, pays from 20% down to next to nothing, while the other 17% of the upper class pay from 50% to 20%. That then would make it roughly about 49% who likely dont pay much if any? Then that makes the middle class and the upper middle class the major bearers of the tax burden?i thought 47% of americans didnt pay fed income tax at all?