Change GEMSAS application after submission: what can and cannot move

After a GEMSAS application is submitted, GEMSAS's published rules allow two things to change: your contact details and your study claims. Your nominated GAMSAT ID cannot change at all, and the medical schools you selected are reconsidered only in narrow circumstances. Submission is the point after which the list of permitted edits becomes short, so this guide goes through each category and then sets out what to check before you submit.

The two updates GEMSAS allows

Contact details are updated through your GEMSAS account. If the detail is your email address, the route is Account, then Change email. That matters more than it sounds, because GEMSAS names email as its main channel of communication and asks for an address that will stay active from April of the application year to February of the next. Study claims are updated differently, by emailing the GEMSAS Support Team. The How to Apply page calls this study information and the policies page calls it study claims. Neither page says how far a study update can reach, so do not assume it covers every correction you might want to make to your educational history.

Selected schools and preferences

GEMSAS will consider a change to your selected medical schools only if two conditions are met: the circumstances behind the request are documented as extenuating, and enough time remains to reassess the application. The pages do not say what counts as extenuating, which documents are expected or how to lodge the request. The policies page does name an Extenuating Circumstances Policy and Procedure, but it does so in connection with extending GEMSAS or VTAC deadlines, and it does not say that the same document governs changes to schools. That policy, like the appeals policy, covers only people who have a GEMSAS VTAC ID for the current year, which means someone who has already submitted.

When you apply, you choose up to six schools, mark the place types you would accept at each (the pages give CSP, BMP and full-fee as examples), and rank the schools. If you are not offered a higher preference, you are considered for a lower one. The list of permitted updates after submission contains neither the order nor the place types, and the pages do not address them separately. Plan on the basis that neither can be changed, and ask GEMSAS directly if you have a real problem rather than a change of mind.

The GAMSAT ID is fixed at submission

The How to Apply and GAMSAT pages on GEMSAS agree on this one: you nominate a GAMSAT ID in the application, and once the application is submitted it cannot be changed. If you hold results from several sittings, you make that choice before you submit. GEMSAS also treats GAMSAT registration and the GEMSAS application as separate processes, with ACER handling everything about the test itself. Changes to a registration with ACER run on ACER's timetable, which this guide to ACER's refund, seat-change and deferral windows puts in order.

The result you nominate has to be valid for the intake you are applying for and has to satisfy the schools you chose. Validity is a four-year window, and a September sitting in the year you apply cannot be used for that year's intake. GEMSAS's table for the 2027 intake lists every sitting from September 2022 to March 2026 as usable, and lists September 2026 and March 2027 as not usable.

Schools do not treat the result in the same way. GEMSAS lists ANU, Deakin, Griffith, Macquarie and the University of Western Australia as ranking on the overall GAMSAT score, and Melbourne, Notre Dame and Queensland as ranking on an average of the three sections. Wollongong does not rank on GAMSAT at all and uses it only as a hurdle. Every school listed sets a minimum of 50 in each section. For the overall or average figure, ANU, Deakin, Griffith, Macquarie and Wollongong list 50, Notre Dame lists an average of 52 and Western Australia lists 55. Melbourne and Queensland list only the section minimum on that page, and GEMSAS sends you to the Medical Schools Admissions Guide, school by school, for the figures. The requirement GEMSAS states is that the nominated result must meet what your chosen schools ask for. The page does not say what follows if it falls short at one of them.

A second application does not correct the first

GEMSAS asks for one application per intake. If two are submitted, it assesses the one submitted first, whichever of them you paid for. A fresh application sent to fix a mistake therefore does not replace the original, which stays the application that is assessed. Late applications are not accepted, and for the 2027 intake the deadline passed on Friday 29 May 2026 at 5:00pm AEST (3:00pm AWST). GEMSAS does not refund the application fee except where the law requires, and withdrawing does not remove the liability to pay it.

Later decisions that also close

The same one-way quality continues after offers. GEMSAS allows one course offer per intake, an offer lapses if it is not accepted by the deadline it states, and declining or letting it lapse ends the chance of another offer in that intake. Deferral is not available as a rule, though some universities make exceptions, such as for an honours year, so read a school's own policy before ranking it. A candidate whose offer lapses can reapply in a future cycle, with no promise of a further offer.

A checklist for before you submit

• Schools and place types: every school you would accept (up to six), the place types you would take at each, and the order you rank them in. Neither order nor place types appears on the update list.
• GAMSAT ID: the sitting you nominate is usable for this intake on GEMSAS's table, and its results clear the minimums each chosen school lists in the admissions guide.
• Educational history: entered as it stands on the day you apply, most recent study first, with each completion month set to when you finish all course requirements rather than when results are released.
• Prior credit: where a course received credit for earlier study, answer Yes to the prior-credit question and complete the details. A course that gave credit to more than one later degree is recorded under the most recent degree only, with no separate entry.
• Declarations: all tertiary study, including incomplete or withdrawn courses, and any exclusion from a university.
• Rural background: the section completed if you meet the criteria of five consecutive or ten cumulative years in an MM2 to MM7 area.
• Fees: cleared at any institution that uses ARTS, because outstanding fees may stop your results being retrieved.
• Contact: an email address you will still have from April to February, and one application only.

What the pages do not settle

This guide rests on what GEMSAS has published for the 2027 intake. Dates, minimum scores and the table of usable sittings are published per intake, so check the current pages and the Medical Schools Admissions Guide entry for each school before relying on any figure here. Some questions are not answered by the pages at all: whether preference order can change through the extenuating route, what counts as extenuating, and what a study-claim update can reach. The GEMSAS Support Team is the body to ask, and no outside source, including this one, can settle them.

The audit above is a checking habit, and the GEMSAS pages cannot tell you whether yours works. The same gap sits behind the nomination itself: if the sitting you will nominate next cycle is one you are still preparing for, the score that arrives shows the outcome and not whether your reasoning changed in between. Verantrix can show whether a specific reasoning pattern is occurring less often than it was across your practice attempts. It is independent of ACER and does not predict a score. Before your next sitting, write down the one reasoning pattern you expect to see less of, and check it against your next set of practice attempts.