![I.R.S. Failed to Police Puerto Rico Tax Break, Whistle-Blower Says](https://static01.nyt.com/images/2024/05/16/multimedia/00PRtax-zmqc/00PRtax-zmqc-facebookJumbo.jpg)
I.R.S. Failed to Police Puerto Rico Tax Break, Whistle-Blower Says
For the past decade, thousands of wealthy Americans have been flocking to Puerto Rico to take advantage of a tax break that can cut their tax bills to zero. For nearly as long, there have been allegations that the benefit enables multimillionaires to avoid paying what they owe when they reap big investment profits. Now,…