1. To print information like TAX number info (ex. GST number) on the receipt header, go to Setting>Receipt Configure. Type in the in Tax number info. See sample photo below.
2. To apply Tax on the sales, go to Setting>Payment Type
- Enable the Tax
- Also enable the "Tax is included in the item selling price" if tax is inclusive
3. You must also enable the Tax for every payment type (that is applicable)