Tax Classes:
You can define your own tax classes as per the requirements. Click on Sales then go to Master Entry then go to Stock and click on Tax Classes.
Following page will open as shown in the screenshot below.
Now enter the mandatory data i.e Tax Class Title, Tax Class Description and Date Added.
Once done, click on the Save button at the bottom.
Your Tax Class has been saved.
You may edit it as per the requirement by clicking on update against this record.