Whenever a vacancy occurs in the House because of the death, resignation, absence without leave, expulsion or disqualification or ineligibility of a Member,[79] it is the responsibility of the Speaker to issue a writ for the election of a new Member.[80] Since Federation there have been, on average, three or four by-elections per Parliament.[81] A by-election may be held on a date to be determined by the Speaker or, in his or her absence from Australia, by the Governor-General in Council. The polling must take place on a Saturday.[82] The issue of the writ is notified in the Gazette.[83]

If there is no Speaker or if the Speaker is absent from the Commonwealth, the Governor-General in Council may issue the writ.[84] A by-election writ may be issued by the Acting Speaker performing the duties of the Speaker during the Speaker’s absence within the Commonwealth.[85] A writ has been issued by the Deputy Speaker during the Speaker’s absence within the Commonwealth[86] and the Deputy Speaker has informed the House of the Speaker’s intention to issue a writ.[87]

There are no constitutional or statutory requirements that writs be issued for by-elections within any prescribed period.[88] This is a matter for the Speaker who would have regard to a variety of factors, including:

  • any announcements that had been made about possible general elections and consideration of when a general election may take place;
  • the cost of holding a by-election separately from a general election; and
  • the period of time that a constituency may be unrepresented if a by-election is not held.

The following cases have occurred:

  • with a general election pending, the Speaker has declined to issue a writ in order to avoid the need for two elections within a short period of time;[89] and
  • writs have been issued and then withdrawn by the Speaker when dissolution of the House has intervened.[90]

In so far as it concerns the sequence of events following the issuing of a writ, the Commonwealth Electoral Act makes very little distinction between by-elections and ordinary (general) elections—for indicative timetable details see page 99.

Notwithstanding that Speakers have decided not to issue writs pending general elections, a suggestion that the Speaker should withhold issue for other purposes has been rejected. In January 1946 the Speaker issued the following statement:

The guiding principle in fixing the date of a by-election has always been to hold the election as early as possible so that the electors are not left without representation any longer than is necessary. With that principle before me I submitted the dates I proposed to the Chief Electoral Officer; he suggested a minor alteration regarding the return of the writ, which I accepted, and the writ was accordingly issued early today. Representations were later made to me that sufficient time was not allowed for a particular State Member to resign. In reply to that I would point out that Mr Wilson’s appointment to an office under the Crown had been announced early in December and was published later in December in the Gazette. Individuals and parties thus had ample notice of the pending vacancy in the House. I would also point out that in the last by-election (Fremantle) an exactly similar number of days was allowed between the issue of the writ and nominations. It has been represented to me that the writ should be withdrawn and a new writ issued. If I were to do this I would be considering the wishes of one particular individual, which should not enter into the matter and which would raise a justifiable protest from other candidates and parties. Moreover, the Chief Electoral Officer advises that the dates have already been notified to the commanders of service units outside Australia, and confusion and inconvenience would be likely if the writ were withdrawn and another issued.[91]

A writ has been issued by the Governor-General between a general election and the meeting of a new Parliament consequent upon the death of an elected Member and when a Member has resigned to the Governor-General before the House has met and chosen a Speaker.[92] Based on this procedure new elections have been held before the meeting of Parliament and after the meeting of Parliament.[93]

When the Court of Disputed Returns (see page 104) declares an election absolutely void, a writ may be issued by the Speaker for the purposes of a new election.[94]

The Clerk of the House was subpoenaed by the Supreme Court of Victoria to appear on 20 June 1904 and produce the original writ issued by the Speaker on 15 March 1904 for an election for the division of Melbourne.[95]

In issuing a writ for a by-election Speakers normally follow the procedure set out below:

  • the vacancy and cause of vacancy is notified to the House at the earliest opportunity;
  • convenient dates are selected and the Electoral Commission is consulted as to their suitability for electoral arrangements;
  • proposed dates are forwarded to party leaders for comment;
  • dates determined by the Speaker are notified by a press release;
  • a writ addressed to the Electoral Commissioner is prepared, signed by the Speaker and embossed with the House of Representatives seal;
  • the House is advised;
  • the writ is delivered to the Electoral Commissioner;
  • the Australian Communications and Media Authority is advised; and
  • notification of the by-election is published in the Gazette.[96]