That is correct, the rich don't pay any taxes at all (whenever the can). The was a recent thread on HN regarding tax audits [0]. What I got from that is that the IRS cannot afford to audit the rich because their taxes are complicated and they don't have enough resources to do so. They choose to audit the poor instead because, it is simpler.. link [0]: https://news.ycombinator.com/item?id=21176705
The Pro Publica link you provided does not show they "audit the poor instead". It shows that the IRS audits poor and rich at the same rates. Unfortunately it seems Pro Publica is succumbing to the same forces as other journalistic outlets and has started to engage in sensationalist headlines. Here is their title verbatim: > IRS: Sorry, but It’s Just Easier and Cheaper to Audit the Poor Here is the article's first sen…
60% of 1000 is less than 60% of 2 million. The cost/benefit of auditing the poor is likely inverted at a small scale. At a large scale, it's the right call. It makes sense, from a particular point of view.