It’s not communism. It’s literally how most of the rest of the developed world file their taxes.
Given taxes are a government system, and one that’s complicated enough that you shouldn’t expect the average tax payer to need to understand it nor have the money to afford an accountant, it’s actually insane to argue that this should be operated in the private space.
This is exactly the kind of thing the government should operate in capitalist societies.
Most of the developed world aint doin so hot
Those who fund their government branches are generally doing better than those who are not. America being the prime recent example of this.
And those who’s government places policies which benefit their voters generally have a better quality of life than those who accept lobbying, and corruption dictate government policies.