McCaw chaired the New Zealand government's Task Force for Tax Reform, which reported in 1982, and was a member of the Victoria University of Wellington (VUW) council for 17 years.[4] In 1988, McCaw was conferred an honorary Doctor of Laws degree by VUW.[5] He was a member of the boards of the New Zealand Wool Testing Authority, the Rural Bank, the National Bank of New Zealand and Wellington International Airport Ltd.[1]