There are no formal qualifications to be a Supreme Court Justice. The Constitution sets no minimum age, no citizenship requirement, no years-of-practice floor, and technically no requirement to hold a law degree. The only constitutional process is nomination by the President and confirmation by the Senate. What actually determines who reaches the bench is a set of unwritten expectations that have hardened over two centuries, and understanding those expectations matters far more than the empty formal rule.
What the Constitution Says
Article II, Section 2 gives the President power to “nominate, and by and with the Advice and Consent of the Senate, shall appoint … Judges of the supreme Court.”1Legal Information Institute. U.S. Constitution Annotated Article II, Section 2, Clause 2 Overview of the Appointments Clause That clause is the entire formal basis for selecting a justice.
Compare that to other federal offices. A president must be at least 35, a natural-born citizen, and a resident for 14 years. A senator must be 30 and a citizen for nine years. For the Supreme Court, the framers wrote none of that. Article III, Section 1 covers only what happens afterward: justices “shall hold their Offices during good Behaviour” and their pay cannot be reduced while they serve.2Legal Information Institute. Article III, U.S. Constitution Eligibility was left entirely to the President and the Senate.
The Unwritten Qualifications That Actually Matter
In practice, a near-checklist has emerged. Every justice confirmed since Robert Jackson in 1941 has graduated from law school. Before that, legal training by apprenticeship was common: between 1902 and 1941, eleven of twenty-six confirmed justices never graduated from law school at all.
The modern tilt toward elite credentials is sharp. As of 2026, all nine sitting justices earned their law degrees at Harvard, Yale, or Notre Dame. The dominant career pipeline is the federal courts of appeals. Eight of the nine current justices served as federal appellate judges before nomination. The exception is Justice Elena Kagan, who served as Solicitor General, the lawyer who argues the federal government’s cases before the Supreme Court.3Supreme Court of the United States. Current Members Other historical routes include state supreme court service, law school faculties, and senior Justice Department roles, but federal appellate experience has become close to a prerequisite.
The ABA Rating
The American Bar Association’s Standing Committee on the Federal Judiciary evaluates every Supreme Court nominee on three criteria: integrity, professional competence, and judicial temperament. It issues one of three ratings: “Well Qualified,” “Qualified,” or “Not Qualified.”4American Bar Association. Supreme Court Evaluation Process The rating has no legal force, and presidents can ignore it, but a “Not Qualified” finding tends to become a political problem during confirmation. The ABA assessment covers professional fitness only; it does not weigh ideology or judicial philosophy.
How a Nominee Gets Picked
A vacancy opens through a sitting justice’s death, retirement, or resignation. The President works with White House counsel and senior advisors to build a shortlist. Justice Department lawyers review each candidate’s legal record, published writings, and judicial opinions, and gauge how the record will play in Senate scrutiny. Judicial philosophy drives the decision. Presidents want nominees whose approach to the Constitution aligns with the administration’s legal priorities.
Finalists go through a confidential FBI background investigation covering criminal history, tax compliance, and professional reputation. The resulting reports go to the Senate Judiciary Committee but are not released publicly. The point of pre-nomination vetting is to find problems before the announcement, because pulling a nominee after a public rollout carries serious political cost.
How the Senate Confirms
Once the President names a nominee, the Senate Judiciary Committee takes over. The nominee completes a lengthy questionnaire covering employment history, cases litigated, opinions issued, and public writings and speeches. Committee staff and individual senators dig into the record, and FBI background reports are made available to committee members.
Public hearings follow. The nominee testifies and answers questions about judicial philosophy, prior rulings, and views on precedent. Outside witnesses, including legal scholars, former colleagues, and advocacy groups, testify for and against. Recent timelines have ranged from 30 days for Justice Amy Coney Barrett to 89 days for Justice Brett Kavanaugh.
After hearings close, the committee votes to send the nomination to the full Senate with a favorable, unfavorable, or no recommendation. An unfavorable committee vote does not automatically kill a nomination; the full Senate can still take it up.
The Vote Threshold
Final confirmation takes a simple majority of senators voting. That threshold is relatively new. Until 2017, a Supreme Court nomination could be filibustered, meaning 60 votes were needed to end debate. In April 2017, the Senate majority invoked the “nuclear option” to eliminate the filibuster for Supreme Court nominations. Every confirmation since has run under the lower threshold.
Taking the Seat
A confirmed justice cannot begin work until taking two separate oaths. The first is the constitutional oath required of all federal officers under Article VI, binding them to “support this Constitution.” The second is the judicial oath set by statute, in which the justice swears to “administer justice without respect to persons, and do equal right to the poor and to the rich” and to “faithfully and impartially discharge and perform all the duties” of the office.5Office of the Law Revision Counsel. 28 U.S. Code 453 – Oaths of Justices and Judges Only after both oaths does the justice officially assume the role.
Tenure, Pay, and Removal
Supreme Court justices serve for life under the “good Behaviour” standard in Article III. The clause, borrowed from English law, means justices hold their seats permanently rather than for fixed terms or at any elected official’s pleasure.6Legal Information Institute. Good Behavior Clause – Overview Longstanding practice treats the clause as protecting justices from removal based on disagreement with their opinions.
As of January 2026, the Chief Justice earns $320,700 per year, and each Associate Justice earns $306,600.7Federal Judicial Center. Judicial Salaries – Supreme Court Justices Article III bars Congress from reducing a justice’s salary during service.2Legal Information Institute. Article III, U.S. Constitution Justices can retire with full pay under the “Rule of 80,” in which age plus years of federal judicial service total at least 80, with combinations ranging from age 65 with 15 years to age 70 with 10 years.8Office of the Law Revision Counsel. 28 U.S. Code 371 – Retirement on Salary; Retirement in Senior Status A retired justice collects an annuity equal to the salary at retirement for life. Justices may also take “senior status,” stepping back from regular duties while keeping the office and the full salary.
The only way to remove a sitting justice is impeachment. The House approves articles of impeachment by simple majority. The Senate then holds a trial, and conviction requires a two-thirds vote.9U.S. Senate. About Impeachment No Supreme Court justice has ever been removed. Justice Samuel Chase was impeached by the House in 1804 and acquitted by the Senate in 1805, and no justice has been impeached since.
Ethics and Recusal
In November 2023, the Supreme Court adopted its first formal Code of Conduct, though justices were already subject to financial disclosure laws and gift restrictions. All justices file annual financial disclosure reports covering outside income, investments, gifts, and reimbursements, consistent with the Ethics in Government Act. The Code also requires compliance with Judicial Conference rules on gift acceptance and prohibits justices from soliciting gifts.10Supreme Court of the United States. Code of Conduct for Justices of the Supreme Court of the United States
Federal law requires any justice to step aside from a case where their impartiality could reasonably be questioned. Specific grounds include personal bias toward a party, financial interest in the outcome, a family member serving as a party or lawyer, or prior involvement in the matter as a government employee or private attorney.11Office of the Law Revision Counsel. 28 U.S. Code 455 – Disqualification of Justice, Judge, or Magistrate Judge Unlike lower federal courts, where another judge can review a recusal decision, Supreme Court justices decide their own recusal questions with no appeal.