How Australia Set a Retirement Age for Judges

While the United States considers implementation of term limits for Supreme Court justices, the evolution of age limits for justices in Australia is an instructive case study.

In 1977, Australians overwhelmingly voted yes on a constitutional question that had lingered for more than half a century: Should federal judges, including those on the High Court of Australia, be required to retire at a fixed age?

Four in five supported the change, making it one of the most popular of the 45 constitutional referendum proposals ever put to the Australian public. Since that year, every High Court justice has retired at age 70 — a reform that has profoundly shaped the composition and renewal of Australia’s apex court.

A long gestation

For the Australian High Court’s first seven decades, its members served for life. Section 72 of the Constitution provided that justices could be removed only by both houses of Parliament on grounds of “proved misbehaviour or incapacity.” Their salaries could not be reduced. The framers intended to protect judicial independence, insulating the judiciary from political pressure or reprisal.

Yet the text did not specify whether judges must be appointed for life or could be appointed until a certain age. In 1918’s Alexander’s Case, the High Court settled the question, interpreting Section 72 as requiring lifetime appointments. Parliament could not, by ordinary statute, impose a retirement age. Only a constitutional amendment could achieve that.

The idea surfaced periodically. In 1929, a Royal Commission on the Constitution recommended setting a compulsory retirement age of 72, but the suggestion went nowhere. For almost 50 years the matter lay dormant — until the 1970s, when the combination of an aging bench, changing social expectations, and a series of judicial controversies brought it back to life.

The 1970s debates

The immediate catalyst was the remarkable longevity of Justice Edward McTiernan. Appointed in 1930, McTiernan served for 46 years, longer than any judge of a final appellate court in the common-law world. After breaking a hip at the age of 84, he was confined to a wheelchair. When Chief Justice Garfield Barwick declined to include a ramp in the design of the new High Court building, McTiernan reluctantly resigned in 1976.

McTiernan’s extraordinary tenure embodied both the virtues and the hazards of life tenure. His deep experience commanded respect, but his declining health raised uncomfortable questions about how long judges should serve. His case became the human illustration of a broader policy challenge.

The year McTiernan retired, the Australian Constitutional Convention — a forum of federal and state representatives established to consider possible constitutional reforms — recommended a mandatory retirement age of 70. Also in 1976, the Senate Standing Committee on Constitutional and Legal Affairs recommended a constitutional amendment to institute a compulsory retirement age of 70.

The committee advanced four main arguments. First, it said regular turnover would help sustain “vigorous and dynamic courts.” Injecting younger appointees would ensure a steady flow of new ideas and contemporary social attitudes.

Second, it contended that, with judges often serving into their seventies and eighties, talented lawyers could not expect to reach the High Court while still at the peak of their abilities. An age limit would make space for a broader range of appointees, including those who might otherwise spend their most productive years waiting for a vacancy.

Third, the committee took the view that the community already accepted retirement ages in other professions. Judges, it reasoned, should not be uniquely exempt from a standard that applied to nearly all senior public roles.

Fourth, the committee argued that a fixed age would spare the system the embarrassment of having to remove a judge whose health or faculties had declined but who refused to step down. Removal for incapacity is inherently delicate; a universal retirement age is a gentler, more predictable solution.

The committee also considered and rejected two alternative plans. One was to allow judges to retire on full pay, encouraging voluntary departure. The other was to reduce a judge’s pension entitlement for every year served beyond 70. Both were deemed unwise: the first too costly, the second too punitive. A constitutional amendment was the cleanest approach.

Political consensus and public endorsement

Remarkably for Australia, where constitutional amendments rarely pass, the proposal met little political resistance. In 1977, all major parties supported a bill to amend Section 72. It provided that High Court justices must retire at 70 and that Parliament could set the same or a lower limit for other federal judges.

The referendum on the judges’ retirement amendment achieved a national “yes” vote of 80 percent and carried in every state — a striking consensus in a country where only 8 of 45 referendums have ever succeeded.

Shifts in the Court’s composition

The change set a rhythm for judicial turnover. Prior to the constitutional amendment, only 4 of 41 judges retired before they turned 70. Vacancies now occur with predictable regularity. A government can forecast appointments years in advance, knowing precisely when a judge will reach 70.

The amendment also ended the phenomenon of strategic retirement. Under life tenure, a justice could time their departure to coincide with a government of favourable political complexion, thereby influencing the ideological balance of the court. With a fixed retirement age, departures are largely automatic and apolitical.

Notably, the introduction of a compulsory retirement age did not lead governments to appoint younger justices to the High Court. Over the past century, the average age of appointees has steadily risen from 45 (1921–1940), to 46 (1941–1960), to 52 (1961–1980), to 54 (1981–2000), to 56 (2001–2020).

Finally, the amendment has helped to maintain public confidence in the High Court. The prospect of judges serving into advanced old age had troubled voters; the amendment assured them that the Court would regularly refresh itself.

Continuity and capability

Some feared that mandatory retirement would deprive the bench of its most seasoned jurists — the so-called Oliver Wendell Holmes problem. Holmes, after all, served on the U.S. Supreme Court until the age of 92. Yet experience has shown that setting the limit at 70 has not impaired the Court’s performance.

If anything, the reform has reinforced confidence that the Court is neither static nor geriatric. High Court judges continue to have long and distinguished careers after leaving the bench: Many serve on royal commissions, international tribunals, or university councils. Their expertise is not lost to public life; it is simply redeployed.

The Court itself remains an institution of impressive continuity, and there has been no suggestion that the age limit has hindered judicial independence. Asked whether they trust the High Court, 61 percent of people say yes, while 33 percent say no, making the High Court one of the most trusted institutions in Australian public life.

Australia’s 1977 amendment aligned it with a common international pattern: Most constitutional democracies avoid life tenure by using fixed terms or age caps. Canada’s high court retires judges at 75. The United Kingdom’s judicial retirement age is also 75. New Zealand and Japan retire judges at 70. Germany’s Federal Constitutional Court combines a 12-year limit with a cap at 68, while in France, members of the Conseil constitutionnel serve a single non-renewable 9-year term.

The quiet logic of turnover

Half a century on, Australia’s 1977 referendum has neither weakened judicial independence nor politicized appointments. Instead, it provided a dignified and predictable transition mechanism that reconciled respect for experience with the necessity of renewal.

Critics occasionally suggest that 70, once generous, now looks conservative in an era of longer life expectancy. Average Australian life expectancy at birth was 73 years when the amendment passed, and it is now 83. Yet there has been no serious push to revisit the rule. It has become part of the constitutional furniture — a reform that worked so smoothly it disappeared from public debate.

Looking back, the introduction of a mandatory retirement age was less about distrust of aging judges than about designing institutions that evolve with the societies they serve. The Australian framers of 1977 were not animated by any hostility to the judiciary. They sought to secure public confidence by preventing the rare but damaging spectacle of incapacity or excessive longevity on the bench.

The result has been a constitutional arrangement that balances independence, security, and renewal. Judges cannot be removed except by a joint address of Parliament, their remuneration cannot be reduced, and they must retire at 70. Together, these provisions sustain both stability and adaptability. The High Court remains independent of politics yet is periodically refreshed by new minds.

The 1977 reform ended the potential for strategic retirements from the High Court and shaped the cadence of its renewal and the expectations of judicial service. It ensures that judges serve on the bench at the height of their capacities and that Australia’s highest court benefits from a regular infusion of new ideas and fresh social attitudes.

Andrew Leigh is a former associate to Australian High Court Justice Michael Kirby and a member of the Australian Parliament.