Your receipt settings are located in your backoffice under 'POS' from the menu in the left navigation. This is where you can add a company logo for your receipts, your VAT registration number
Using the AirPOS back office on your hardware devices.
When you go to 'Sales' from the menu in the left margin of the backoffice you'll see a calendar view of your sales for the current month. You can navigate to other months
Adding and editing variants to an existing master product.
Among the many reports you can run with the advanced reporting suite is the tax report. This features a pie chart showing all the tax rates that you have set up in the backoffice.
You can view a report on transactions by device. If you click on devices from the left navigation panel, under reports in the backoffice you will be presented with a bar chart showing sales by all of your devices or tills.