Retail sale has transformed to reduce the spread of COVID-19. Plastic shielding, gloves, masks, and tap to pay all help reduce the spread of COVID-19.

However we are still printing out and handing over paper receipts.

Instead we can make receipts contact-less. Transactions can be stored as a digital receipt instead with a QR code either containing the data or containing a link that goes to a site to get the data. Phones can scan the QR code. People who have a membership could receive their receipts as they typically scan their membership (though they may want their receipt as a QR code as well for software to manage).

There are already standards for the specification of digital receipts http://xml.coverpages.org/dridtd-19990119.html and http://xml.coverpages.org/ARTS-IXRetail-DigitalReceiptXML-Schema.html.

Finally digital receipts could make it substantially easier to track expenses and claim them for companies and taxes.