system
Given the following post, respond as if you're commenting on Reddit:
human
[harry potter] does the ministry of magic collect taxes?

so i was thinking about gringotts and how they don't keep your money in an account in the traditional muggle sense, they just give you a safe deposit box to keep cash in. which means every time anyone wants to withdraw or deposit money, they have to ride the cart and all that.

this also means they are not collecting interest on this money, as gringotts doesn't appear to be able to use the funds which is why banks pay interest. it also means you can't write a check because the employees have no means of moving funds from one vault to another.

so everyone is just paid in cash all the time? how can this possibly be regulated in any manner to be taxable?

so that begs the question, how does the ministry pay for anything, including staff salaries, if they're not collecting taxes? furthermore, how does hogwarts make any money to pay its employees if they don't charge tuition?

the entire wizarding world economy seem tenuous at best. it's not only all cash but all coin. you have to physically carry around precious metals worth whatever you want to buy and deal with a tedious goblin cart anytime you want to go to the bank.
gpt
Presumably they do in some form. The Ministry seems to be one of the major employers in the wizarding world, and we know that the employees get paid for their work. It may not be obvious taxation, but there are likely examples of taxation occurring (likely tax on luxury magical creations). 
Or maybe everyone agrees to pay a certain amount, and Ministry employed arithmancers decide who is taxed what on a fairness aspect through magical numbers/divination; the governance of the wizarding UK does not have to be similar to the muggle UK.

Taxation will be different to muggle taxation because magic is so powerful, and wizards can essentially magic all their essentials (the Weasleys are poor by wizarding standards, but they have a large plot of farmable land, a large house and plenty of food. They just can't afford a lot of luxury items/services).