The IRS has intensified its enforcement efforts aimed at high-income taxpayers and employee retention credits. A recent initiative has identified 125,000 high-income earners who have not filed tax returns since 2017, owing an estimated $100 billion in back taxes. This move, part of a broader strategy for aggressive oversight and enforcement, includes new enforcement initiatives focusing on millionaires, corporate jets, and cryptocurrency. The resurgence of the non-filer enforcement program, previously idled for years by past budget cuts, signifies the IRS's commitment to aggressive oversight.