From an 83(b) election on an arbitrarily short vesting schedule you made for yourself for discounted assets, to Advance Pricing Agreements which you pay for, to Private Letter Rulings, to tax-exempt status for your non-profits. It just isn't the same experience with that agency.
I've been talking about all the interactions one can have with the IRS before taxes are ever filed.
My understanding is that the majority of "working class" audits are around tax credits and that the IRS knows to a moral certainty that there's a problem due to internal inconsistencies in the filing itself.
The IRS uses a social graph which affects the working class more than others. Basically, if you get paid by someone and that someone deducts the payment on their taxes, the IRS is looking for the recipient (you) to see if the IRS was paid by the recipient to make up for the deduction. So this is done with W-2 employment and 1099 payments.
This affects individuals more so because there is no clear guidance on whether 1099 filings are necessary for payments to LLCs and other entities, and there likely never will be. LLC's are not expensive or exclusively the domain of the wealthy, but in practice they are, and the opportunities available to a contractor to act as an individual versus in a corp-to-corp payment situation are pretty heavily correlated to the value of the contract.
Just one of many examples of the different experience.
Working class people commit fraud related to EITC, child tax credit, American opportunities tax credit, and medical expenses. Capital class tax fraud covers pensions, annuities, rents, fellowships, scholarships, royalties, business expenses, bad debt deduction, property, and capital gains.
Those who commit the first types of fraud get one treatment while those who commit the second types of fraud get another. The end result is that working class people get treated by the IRS in one way and capitalist class people get treated another.
The working class gets audit mail, while the capitalist class get to talk face to face. It is the privilege of talking it over. If you can take just a moment to view the IRS as a customer support line, the rich get to talk with a real human.