Take a look at the "Fair Tax". It does essentially what you are asking for, and it's all handled at the cash register. No forms at all to file (not even a flat tax post card!)
It even includes a built-in "pre-bate" that serves as a kind of "Universal Basic Income", which should be a it with voters of all types! According to their math, the sales tax will be 23%. But, because its only paid by the end consumer, it balances-out the previous taxes currently embedded in the whole rotten system. And did I mention that there's no paperwork? ;-)
https://fairtax.org/active-legislation/h-r-25-the-fairtax-act-of-2023
Another tax break for the rich.
Not sure why you want to replace one form of government theft with another. The “Fair Tax” sucks ass.