A Denver, Colorado grand jury recently indicted Dr. Ryan Ulibarri on six criminal tax fraud counts. According to the indictment, he used an “abusive-trust tax shelter” to conceal more than $3,500,000 of taxable income earned from 2017 to 2022. As a result of hiding this income, the IRS alleges he underpaid his federal income taxes by more than $1,000,000 over that time period.

This indictment is the latest IRS crackdown involving tax reducing trusts that it considers abusive. Its complex structure with no business purpose is a sign of fraud to the IRS. In March, the IRS posted a warning about those trusts on its website, giving the details of typical schemes and noted that they’ve been marketed aggressively to wealthy individuals, including doctors and dentists.