When you have hundreds of line items, it’s a hassle to define taxes on each of them. In this case, you can apply a group tax and save time.
When the Group Tax mode is enabled, taxes are applied to the total amount of the line items. For example, if the total value of line items is INR 10000 and the group tax is 11%, then the post-tax value of items is INR 11100.
To know more about Tax Management, click here.