Add a tax rate
Go to TAX RATES.
Press Add +.
Enter the tax Name and tax percentage.
In the drop down menu beneath the tax percentage field, select Add Tax to Item Price or Item Price Has Tax Included.
Press Save.
Modify a tax rate
Go to TAX RATES.
Locate the tax class you want to modify.
Press the edit icon to the right of that tax class.
Make changes and press Save.
Delete a tax rate
Go to TAX RATES.
Locate the tax class you want to delete.
Press the red x icon to the right.
In the pop up window, press Yes, go ahead to confirm this action.