He has worked in a number of roles in the Anglican Church in Tasmania and Victoria: with the Diocese of Tasmania as diocesan field officer for the Anglican Boys’ Society, the diocesan youth and education officer; deputy warden at Christ College in the University of Tasmania (1980 to 1984); director of parish education at St Stephen's Church, Mount Waverley, in the Diocese of Melbourne (1985).

[7] By his own admission, Aspinall was surprised by a "no religion" campaign which was launched by an atheist lobby group in the lead-up to the 2011 Census.

[8] In terms of social justice issues, Aspinall has spoken out against the ill-treatment of asylum seekers.

[10] Between the retirement of Philip Freier on 31 March 2020 and the election of Geoffrey Smith on 7 April 2020, Aspinall served as interim primate.

[14][5] In the 2021 Queen's Birthday Honours, Aspinall was appointed a Companion of the Order of Australia (AC).