A product category is a type of product. Users create product categories to organize their products effectively. This allows us to easily define our products in different categories.
This article explains how to change the tax rate for a product through the category tax in the Products option. If users want to change tax rates for all products according to their category, they can do so from the GST Updates section in the "System Maintenance" form.
For example, a bottle is a product category where a sales and purchase tax of 12% was previously applied. Now, the tax rate has been changed from 12% to 18%, and you want to update it for every product under that category. You can simultaneously update the tax for all products using this option.