I mean, it shouldnt be so hard to do some research -- https://www.cbo.gov/system/files/2022-08/58390-IRS.pdf
The CBO said it raised 180B in revenue from people NOT paying taxes or fraudulently paying taxes.
...and their description is clear about where the revenue is coming from: "CBO projects that some of the increased revenues will be collected from taxpayers with income less than $400,000; the amount will be a small fraction of the total increase."
It clearly articulates the jobs are for replacing retiring agents and updating systems...
The IRS has been starved and underfunded for years. They have a huge wave of retirements coming they need to replace to even get to level, but reality is they need way more to be effective. You ever tried to call and get information from them? They need the resource. They need the man power...