Override Tax rate on a Specific Item
If you have not already set your default location tax rate, please see this article first.
Once you have set your tax rate, you may want to set each item with tax, tax exempt, or even a different tax rate.
Navigate to your Items from Home>Settings>Items
Once you are there and can see your list of items, you can add a new item or edit an existing item. Click on the edit pencil next to the item you would like to see the tax rate for.
Click on the drop down menu in the Tax Rate box to choose.