Commonwealth Consolidated Acts Commonwealth Consolidated ActsWhere:
(a) a document is required to be served on a person for the purposes of proceedings against the person for the recovery of a debt due to the Commonwealth under this Act; and
(b) the Registrar is satisfied, after reasonable inquiry, that the person:
(i) is absent from Australia and has no attorney or agent in Australia on whom service of process can be effected; or
(ii) cannot be found;
service of the document on the person may be effected, without leave of a court, by posting the document or a sealed copy of it in a letter addressed to the person at the person's last known place of business or residence in Australia.