I am new to V2 of Store and wondering how to make a product tax free? I understand you may have to use categories not but I do not see anything in the docs or in the tax settings that shows how this is done. Any help?
When you create or edit a tax rate in the Store → Settings area, there is a Match Categories field.
So you either select all of your categories, minus the Tax-free category you've created; or, you create a single Taxable category, and use that as the way to assign tax to each product (the latter is amore flexible and future-proof option).