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ATAR & TAC's Explained
Last updated March 30th 2026
Understanding the Australian Tertiary Admissions Rank (ATAR) and applications process for Australian Universities as a parent can become confusing, but not to worry! MedView has you covered with this guide to the ATAR and Tertiary Admissions Centres (TAC).
What is the ATAR?
ATAR stands for Australian Tertiary Admissions Rank, and is a rank of your academic achievement compared to every single Australian student in the same year group.
Every student upon leaving school in Australia receives an ATAR. Each student’s rank reflects a direct, scaled comparison of that student’s performance against that of every other student finishing in Australia in that same year. As such, a student’s ATAR is a percentile score, with the top score being 99.95. It should be noted that even if students complete alternative/international curricula such as the International Baccalaureate (IB) or Cambridge (CIE), Australian medical schools will convert these scores to an ATAR in attempt to compare all candidates on equal grounds.
In the context of minimum ATAR requirements for medical school, there is no one answer. A general rule for students to follow is that an ATAR exceeding 99.00 is likely to be a competitive score. However, it is at the discretion of each university to place as much weighting as they see fit, on the ATAR.
By way of example, The University of Sydney’s program requires its students to obtain a perfect ATAR score of 99.95 to be eligible for admission. Other universities will place greater emphasis on different elements of the process such as the entrance exams (e.g. UCAT), portfolios or interview performance, in which these cases may reflect a lower ATAR score required.
For more information on Australian medical school admissions, check out this guide!
ATAR’s from every state are all equivalent (i.e an 80.00 in NSW is the same as an 80.00 in QLD). ATAR’s are calculated and released by each individual state's TACs.
What is a Tertiary Admissions Centre (TAC)?
TACs stands for Tertiary Admissions Centres, they are organisations that handle university applications on behalf of individual universities. Each state in Australia (except for Tasmania) has a TAC that will convert a students final year results to an ATAR and process this information with their application. Below is a list of the TACs for each state:
New South Wales: Universities Admissions Centre (UAC)
Victoria: Victorian Tertiary Admissions Centre (VTAC)
Queensland: Queensland Tertiary Admissions Centre (QTAC)
South Australia: South Australian Tertiary Admissions Centre (SATAC)
Western Australia: Tertiary Institutions Service Centre (TISC)
Note: The Northern Territory is governed by SATAC and the Australian Capital Territory collaborates with UAC
Why do we have an ATAR?
There are a great number of curriculums offered in Australia from local state streams such as the HSC, VCE, WACE, QCE and SACE to international streams such as the International Baccalaureate (IB) and A-Levels. All of these curriculums differ slightly and calculate their own final scores. Therefore, to fairly rank all Australian high school graduates, the ATAR is used.
How is the ATAR Calculated?
All curriculums around Australia include a mixture of internal assessments (tests, assignments and investigations) and external assessments (state-wide examinations). A mixture of these assessments are calculated together to form a final mark or grade for that subject, which is then combined with the rest of your subjects.
TACs use a series of algorithms to ‘scale’ subjects. This ensures that students who take a combination of more complex or intensive subjects where the average mark would be lower than a less content heavy subject, are given a mark that is reflective of their performance.
The scaled scores of a student's top 10 units of ATAR courses are then combined to determine your ranking.
Students receive a final result based on their curriculum — for example, an overall score in the IB Diploma Programme (out of 45), or scaled subject scores and aggregates in systems like WACE and SACE.
These results are then used to calculate an ATAR each year, which is a national percentile ranking that compares a student’s performance against their peers.
All Australian curricula apply scaling and moderation processes to ensure fairness and comparability between subjects and cohorts.
Finally, some high schools will encourage the study of certain subjects with “bonus points”. This differs from school to school and having the right insider knowledge here is critical to being successful with your medical application. Book a free consultation with the MedView team to learn more!
ATAR Cutoffs for Medicine
Why is my ATAR low compared to my high school grades?
A student’s high school marks (their academic performance) and their ATAR (their rank compared to other students) measure different things and are not directly comparable.
The ATAR is a percentile ranking that reflects a student’s position within their cohort, not just their raw marks.
As a general guide, a student performing around the middle of their cohort across all subjects may receive an ATAR of approximately 70.00. However, this can vary significantly depending on subject scaling and the strength of the cohort.
For example, marks in the 70s may result in a higher or lower ATAR depending on how those marks rank within each subject.
Does this mean I should only pick ‘hard’ subjects?
Not necessarily. Because all scores are scaled, students need to think about which subjects they will do well in. The higher above the year group average of a subject that they perform, the higher their ATAR will be. Similarly if a student chooses all the hard subjects and is performing in the middle of the pack they (and their ATAR) would benefit more from choosing an ‘easier’ subject where they could be ranked 1st amongst their cohort.
Why do some courses scale better than others?
Courses are scaled using the mean scores and distribution of marks, which indicate the ability of all students studying that course. Courses studied by students who perform well in all their courses will be scaled highly. Courses such as Mathematics and Physics traditionally scale well because of this; however, you need to achieve high marks to gain any benefit from scaling. Find out more scaled subjects for medical school admission by booking a free consultation with the MedView Team.
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