Navigation:  Key Concepts > Inventory Management > Categories > Category Listing > Set Tax Category On Tagged

If you have multiple categories which should be using a different tax category than what is currently assigned,

1)  Tag the category names requiring the same change.

2)  Select "Set Tax Category On Tagged"

3)  Choose the appropriate Tax Category from the list, by first highlighting the name and

4)  Then choose Select.

If the tax category is not listed you will need to edit your tax rates screen.   (see Tax Setup and Tax Category)