Is tuition taxable? The honest answer is: ask your accountant

The reason there is no general answer is that instruction is treated differently from state to state. Some states do not tax services at all. Some tax recreational or athletic activities specifically. Some exempt instruction for children, or classes run by particular kinds of organisation, and define the boundary in a way that is not obvious from outside.

Anyone who tells you a flat rule for the whole country is telling you about their own state.

The parts that usually vary

The class itself. Whether instruction is a taxable service where you are, and whether it matters that the students are children.

Goods you sell alongside it. Uniforms, belts, gloves, shoes. These are physical products and are treated as such in most places, whether or not the class is.

Bundles. A monthly fee that includes a uniform is one price for two different things, and the way that is handled is one of the more common places schools get it wrong.

Camps and one-off workshops. Often a different category from ongoing instruction, and sometimes a different answer.

Registration and testing fees. An annual fee, or a grading fee, may or may not follow the same treatment as the tuition it sits beside.

Why the software cannot decide this

Software can apply a rate. It cannot know whether your Tuesday class is instruction or recreation under your state's definitions, and any tool that claims it can is taking a position it will not stand behind when you are audited.

What software should do is make the numbers easy to produce: what you charged, to whom, for what, in a form your accountant can read without asking you to retype it.

Prices shown with tax, or without

One decision worth making deliberately. In the United States prices are normally shown before tax, which is what customers expect. Displaying a price that later changes at checkout is legal in most places and irritating in all of them, so if you do tax, be clear where it appears.

What to actually do

Take this list to your CPA once. It is a fifteen-minute conversation for someone who knows your state, and the answer holds until you start selling something new. Then write it down somewhere your front desk can see it, because the person who needs it in November will not be you.