The Wall Street Journal editorial board details the scheme:
The bill earmarks $45.6 billion for “enforcement,” including “litigation,” “criminal investigations,” “investigative technology,” “digital asset monitoring” and a new fleet of tax-collector cars. The result will be far more audits, civil suits and criminal referrals. [Emphasis added]
The main targets will by necessity be the middle- and upper-middle class because that’s where the money is. The Joint Committee on Taxation, Congress’s official tax scorekeeper, says that from 78% to 90% of the money raised from under-reported income would likely come from those making less than $200,000 a year. Only 4% to 9% would come from those making more than $500,000. [Emphasis added]
The IRS knows the super-wealthy employ lawyers and accountants who make litigation time-consuming and risky. It also knows that Democrats would howl if the agency pursues fraud in the earned-income tax credit program, despite what the IRS has estimated are $18 billion in improper payments each year. [Emphasis added]