This article will go over how to set up your settings when you are first creating your Sales Tax Rate.
1- Click on the Admin tab. Then go to the Global Settings section and click on the Sales Tax bubble.
2 - Next click on the Settings link.
3 - The next page that will appear is show the settings that you can choose from:
You can choose if you want to Calculate Tax Before Coupons Are Taken Off.
4 - Once you are done you can then click the Save This Information tab.
You have selected your settings for the Sales Tax rate.