The IRS conducted 675,000 fewer audits in 2017 than it did in 2010, a drop in the audit rate of 42 percent. But even those stark numbers don’t tell the whole story, say current and former IRS employees: Auditors are stretched thin, and they’re often forced to limit their investigations and move on to the next audit as quickly as they can.
Without enough staff, the IRS has slashed even basic functions. It has drastically pulled back from pursuing people who don’t bother filing their tax returns. New investigations of “nonfilers,” as they’re called, dropped from 2.4 million in 2011 to 362,000 last year. According to the inspector general for the IRS, the reduction results in at least $3 billion in lost revenue each year. Meanwhile, collections from people who do file but don’t pay have plummeted. Tax obligations expire after 10 years if the IRS doesn’t pursue them. Such expirations were relatively infrequent before the budget cuts began. In 2010, $482 million in tax debts lapsed. By 2017, according to internal IRS collection reports, that figure had risen to $8.3 billion, 17 times as much as in 2010. The IRS’ ability to investigate criminals has atrophied as well.