[dmek25]

These numbers represent only people who have a positive adjusted gross income. In 1999, there were 127 million tax filers, 94.5 million of whom showed an income tax liability. That is, 26% had no liability at all. The actual number of people filing without paying comes to 16 million (after subtracting those getting earned income tax credits and thus, presumably, still somewhat sensitive to tax rates). So almost 13% of all workers have no tax liability and so are indifferent to income tax rates. And that doesn't include another 16.5 million who have some income but don't file at all.
this was taken from the wall street journal. i posted it because on 2002 the numbers were starting to climb. with the amount of people that don't file, the percentage was probably around 30- 35. so this is nothing new