The NFC tag – which allows people to pay through their smartphones – is to be sent out in a large proportion of fundraising packs as a trial in time for this year’s event, which is the second biggest charity fundraising event in the UK.
The World’s Biggest Coffee Morning, which takes place today, raised £26.9m in 2018, according to the events management firm Massive.
Macmillan said fundraisers would be able to register their coffee mornings through the NFC tag. When a donor touches the donation box with an NFC-enabled device, a donation page will appear on their smartphone, where they can select the amount they wish to donate.
Gift Aid can also be added during the transaction.
The online payment system creates engagement and analytic results for those who have hosted coffee mornings as part of the event.
The cashless donation boxes are currently being trialled, so not all supporters will receive an NFC-enabled donation box.
Macmillan would not reveal the costs associated with the trial of adding and sending out NFC-enabled fundraising packs.
The charity worked with the ethical sourcing company The Sourcing Team and the technology company Thyngs to add NFC tags to Macmillan collection boxes.
Abby Solomon, senior marketing manager at Macmillan, said: "We’re very excited to be able to test this new technology on our coffee morning kits for the first time this year.
"We simply cannot support the growing number of people with cancer without generous donations from our supporters, and this technology will give them an additional way to donate."
Gill Thorpe, chief executive of The Sourcing Team, said: "This innovative technology should help Macmillan build on its hugely successful coffee mornings and open out the cashless-giving opportunity to increase overall donations."