We closed down a business. A few months later, I got two checks totaling almost $27,000 from the IRS. It was 6 months of employee with holding taxes that I had filed and paid in monthly. The IRS had the closing date wrong and refunded me all that money THAT WASN'T MINE. I finally went to Marvin Zindler, Channel 13 News in Houston, a consumer advocate, to get them to take their money back.
Abolish the IRS and go to a flat consumption tax.
Again, one of the big problems is that too many agencies have strayed far from their original mission statements and thus their goal of serving the greater good of the citizens. This is not limited to only the IRS/Treasury Dept.
DOE, EPA, USDA, NASA, SSA.....all of them and more, have experienced (usually by their own intentional design) "mission creep".
They do this to ensure their own survival and to make their agencies more 'relevant' when it comes to budgetary inputs.
I doubt we will ever see IRS as we know it "abolished" and replaced strictly by a federal consumption tax.
The Dept of Treasury employs around 87,000 people with about 70,000 of those being full or part time IRS employees. There are another 63,000 federal employees that work in jobs related to US Treasury/IRS, and are represented by a very strong National Treasury Employees Union, 150,000 members. Their lobbying efforts in congress is substantial. They aren't going to go quietly into the night by any means.
Consumption tax sounds good on surface, but it would have to be in conjunction with some sort of flat income tax as well, or have a lot of exceptions/exemptions. Consumption tax moves the brunt of revenue assessment onto young families with kids at home. Old people, whose kids have already left home do spend money but person for person, are more frugal than young families. Even the elder rich and semi-rich tend to be much more careful when and how they spend money.
Our tax code is and has been for a very long time 'broken' but I know of no easy, fair way to fix it, tho a 'debt tax' with exemptions for home mortgage would go a long way toward fixing it IMO. It would also reduce the propensity for people to so easily go into debt they really can ill afford.
More than that, I won't say, as it would be getting into politics...