The group was set up three years ago with the aim of benefiting from the shared wisdom of academics, economists and important figures from business and the third sector.

It was part of Holyrood’s Medium-Term Financial Strategy and could count the likes of Institute for Fiscal Studies economist Stuart Adam and Fraser of Allander Institute director Mairi Spowage among its members.

Following its launch, the plan was to settle into a schedule of four meetings a year “for the remainder of the Parliamentary term” after the 2024/25 Budget.

TAG’s most recent meeting was held in February, however minutes from the gathering published this week revealed it was the last one, with the now former Deputy First Minister Shona Robison saying: “The Cabinet Secretary noted that this would be the final TAG meeting, and thanked members for their engagement with, and contribution to, this process during this parliamentary session.”

The decision was labelled “deeply worrying” by the Scottish Conservatives.

Finance spokesman Craig Hoy said: “John Swinney was clearly ignoring the warnings from business leaders and economists that continually hiking taxes kills growth, but now his government have stopped listening to them altogether.

“This is a deeply worrying sign for hard-pressed Scots, who are already being clobbered by sky-high SNP taxes.”