D.A.King was educated at St Andrew's University & holds a doctor's degree. He was employed by an international firm of Chartered Accountants until they were merged with another. He has been a State Authorised Auditor & a Fellow of the Association of Authorised Public Accountants. He is a Licentiate of the Association of Charity Independent Examiners.
Clients include actors, musicians, & designers, as well as limited companies, professionals, & charities. He moved his practice out of London in January 2000, & returned home to Scotland.