To customise your receipt you will need to go to Settings > Property, and scroll to Tax details.
Displaying tax breakdown on receipt
Enter the tax rate to display the tax breakdown on the receipt. The charges will be displayed as tax exclusive. The breakdown is as follows:
Charges (tax excl):
How to add a custom receipt title and footer
You can also fill out Custom receipt title (text written here will replace the word Receipt) and custom footer (where you can include your terms and conditions).