GAMSAT September 2026: Sections I and III on Sep 11-13, Plus Four-Year Validity

ACER confirmed the GAMSAT September 2026 sitting will run across two windows: Section II (Written Communication) delivered by remote proctoring on 22-23 August 2026, and Sections I (Reasoning in Humanities and Social Sciences) and III (Reasoning in Biological and Physical Sciences) at test centres on 11-13 September 2026. Standard registration closed 30 June 2026, and results release in mid-November 2026. Australian applicants also benefit from the four-year validity policy ACER rolled out in late 2022. The fee sits at AUD $568.

What changed for GAMSAT September 2026

The September sitting is no longer a single weekend. Written Communication runs remote-proctored on 22-23 August 2026, roughly three weeks before the multiple-choice sections. Sections I and III are then delivered at ACER test centres across Australia, the UK, and Ireland on 11, 12, and 13 September 2026. Candidates more than three hours from a test centre can request remote proctoring for the multiple-choice sittings too. Standard registration ($568 AUD) closed 10pm AEST on 30 June 2026, with a late fee of $114 AUD after that.

The four-year validity rule, explained

ACER announced in November 2022 that GAMSAT results would carry a four-year shelf life in Australia, doubling the previous two-year window. That rule is still in force for 2026 applicants. Practically, a score from the GAMSAT September 2026 sitting is usable for medical and health science program applications in 2027, 2028, 2029, and 2030 across participating Australian schools. UK and Irish applicants get a shorter runway: results remain valid for two consecutive years, with Ulster University and RCSI Dublin's non-EU pathway as the notable four-year exceptions.

Why the split calendar matters

Splitting Written Communication away from the multiple-choice sittings changes how candidates plan the final six weeks of prep. The essay window in late August lands during many Australian universities' semester two teaching block, which forces trimester-2 students to juggle assignments alongside two timed essays. The September 11-13 window then follows almost immediately, meaning candidates cannot fully "reset" after the essay before facing 141 questions in Humanities and 110 in Biological and Physical Sciences. Test-day logistics also matter: candidates who chose a test centre for Sections I and III must confirm venue details in the weeks leading up to 11 September.

What the four-year rule means for application strategy

The longer validity window changes the risk math for graduate applicants. A student sitting GAMSAT September 2026 while finishing an undergraduate degree can now apply to Australian medical schools every year from 2027 through 2030 without re-sitting, provided the target school honours the full four-year currency. Not every school does; GEMSAS-consortium universities publish their own currency rules, and applicants should confirm each school's policy before banking on a single score. For candidates torn between March and September, this rule means one strong September 2026 result can carry a candidate through several application cycles, softening the "one-shot" pressure that defined the exam pre-2022.

Costs, results, and the mid-November release

The AUD $568 standard fee (inclusive of GST) covers both the August essay window and the September multiple-choice sittings; there is no separate charge for Section II. UK applicants pay £296 and Irish applicants pay €378 for the same sitting. Results for GAMSAT September 2026 are scheduled to release in mid-November 2026, with unofficial community estimates pointing to the 15-18 November window. Each candidate receives four scores on a 0-100 scale: one per section plus an overall score calculated as (Section I + Section II + 2 x Section III) divided by four.

Key Takeaways

• Section II (Written Communication) runs 22-23 August 2026; Sections I and III run 11-13 September 2026 at test centres.
• Standard registration ($568 AUD) closed 30 June 2026; late registration adds $114 AUD.
• GAMSAT September 2026 scores are valid for four consecutive years in Australia (2027-2030 intake cycles).
• UK and Irish applicants still face a two-year validity window, with limited four-year exceptions.
• Results release is scheduled for mid-November 2026, delivered via a personalised online scorecard.

What's Next

Candidates who registered by the 30 June deadline should watch their inbox in early August for ACER's remote-proctoring setup instructions ahead of the 22-23 August Written Communication window. Test-centre allocations for Sections I and III on 11-13 September are typically confirmed 10 to 14 days before the sitting. Applicants planning to use results for the 2027 GEMSAS round should also check individual medical school currency policies through GEMSAS and each university's admissions page, since not every institution accepts the full four-year currency. Full sitting details and updates remain live at gamsat.acer.org.