'The Federal U.S. tax code now exceeds 71,000 pages. '
Prior to World War II, the federal tax code was a modest 500 or so pages long, but by the end of the war it had grown to over 8,000 pages. Since that time, the code has grown at a fairly consistent rate of a little more than 3% every year, reaching over 71,000 pages in 2010. And despite complaints that not a single person in the country fully understands it, the code's growth shows no signs of slowing down.