COSA is the national oncology community bringing together multidisciplinary health professionals across all cancers to advance care and improve outcomes.
As a COSA member, you will have opportunities to connect with oncology leaders, build networks and collaborations, access professional development and education, drive advocacy, and facilitate research.
COSA membership is open to healthcare professionals who have an interest in oncology relevant to the vision and mission of COSA. You are eligible for COSA membership if you hold a professional qualification, are working in healthcare or research, and devote a majority of your professional activity to cancer care and/or research.
Members of COSA Affiliated or Associated organisations are eligible for a discounted membership rate on selected individual membership types.
Membership is valid from 1 July to 30 June each year. Membership fees are GST inclusive. We accept Visa and Mastercard for payment.
If you are unsure which member type is right for you, please contact us.

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2025 COSA membership
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Individual
Memberships

Medical Member
This membership is for qualified clinical practitioners with a specific interest in oncology. Medical members hold a postgraduate degree or fellowship from a recognised College or Society, eg medical or radiation oncologists, surgeons, general practitioners etc.
- $310 / year
- $280 / year (Affiliated/Associated Medical Member rate)
Allied Health Member
This membership is for health professionals or non-medical professionals with a specific interest in cancer care, eg exercise physiologists, physiotherapists, pharmacists, psychologists, nutritionist/dietitians, radiation therapists, non-clinical administrative staff etc.
- $175 / year
- $150 / year (Affiliated/Associated Allied Health Member rate)

Nursing Member
This membership is for registered nurses with a specific interest in oncology, eg breast care nurses, clinical nurse consultants, nurse practitioners etc.
- $175 / year
- $150 / year (Affiliated/Associated Nursing Member rate)

Advanced Trainee Member
This membership is for doctors in specialty training with a specific interest in cancer care, who are eligible for this membership rate for the duration of their training, eg trainees in medical, radiation and surgical oncology.
- $175 / year
- $150 / year (Affiliated/Associated Advanced Trainee Member rate)
Student Member
A person who is undertaking undergraduate or postgraduate studies with a focus on cancer care in an Australian educational institution is eligible as a student member. Students must indicate an expected completion date on application and COSA may request documented evidence of student enrolment periodically.
- $50 / year
Retiree Member
A person who has retired from professional employment, has held COSA membership for 10 years prior to retirement, and has a continued personal interest in cancer care is eligible as a retiree member, subject to Board approval.
Please contact COSA [email protected] to enquire about Retiree Membership.
- $85 / year
Honorary Member
A person who has made significant and sustained contributions to COSA or to cancer care in general is eligible for admission as an Honorary Member. This membership category is offered to past Presidents of COSA and nominees and must be approved by the COSA Board.
Affiliated and Associated
Organisations
Interested in organisational membership?
Affiliated and Associated Organisations include not-for-profit companies, institutions or organisations that have a similar vision to COSA.
If your organisation is interested in becoming an Affiliated or Associated member of COSA visit the Member Organisations page for more information.
Member OrganisationsJoin Australia's leading oncology community & make an impact
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COSAoncology 2 days ago
@COSAoncology @ASCO @EuropeanCancer are using their collective voices to raise awareness of challenges impacting the wellbeing of health professionals and to define principles for creating healthy workplace cultures in health systems. See Lancet Oncology
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COSAoncology 3 days ago
Exercise & Cancer / Global Oncology Group Fellowship opportunities! COSA is offering two Fellowships to early-mid career researchers to coordinate and lead a study to develop a model of care for exercise oncology for a lower-middle-income country setting.
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COSAoncology 4 days ago
The latest Survivorship eNews is out now! With working group updates, new COSA-endorsed resources, journal articles, COSA-IPOS 2025 key survivorship sessions & more. Check your inbox, visit
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COSAoncology 4 days ago
Cancer Pharmacists Group Fellowship opportunity! COSA is offering an early career researcher mentorship, guidance and support to develop a COSA position statement on 'Documentation of Hypersensitivity Reactions to SACT'. Find out more
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COSAoncology 8 days ago
Congratulations @Joanne472 recipient of the 2025 Melanie Price Psycho-Oncology Award and Dr Sarah Ellis recipient of the 2025 Phyllis Butow New Investigator Award. Join us in recognising their achievements at COSA-IPOS 2025 in Adelaide in November.
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COSAoncology 16 days ago
Congrats Prof Gail Garvey AM recipient of 2025 Tom Reeve Award for Outstanding Contribution to Cancer Care. Her work has contributed greatly to policy and practice changes to improve the outcomes of First Nation's people with cancer. Presentation & oration
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COSAoncology 23 days ago
Our August member newsletter is out now. Check your inbox for COSA news and updates – webinars, resources, opportunities, journal articles and events. Or log in and read it online anytime at
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COSAoncology 28 days ago
Earlybird closes in 1 week! Don't miss the exciting program and networking opportunities at #COSAIPOS2025 this November in beautiful Adelaide. With support from #Adelaide, @BizEventsAdl, @AdelaideCC. View the program
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COSAoncology 29 days ago
Join us for a collaborative webinar exploring nurse-led survivorship care models and their role in addressing pressures in the health system. Ideal for multidisciplinary cancer care teams looking to embed sustainable, outcomes-focused survivorship care.
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COSAoncology one month ago
In partnership with @CancerCouncilOz, we’re offering three grants up to AUD$3,300 to support Aboriginal and Torres Strait Islander delegates to attend #COSAIPOS2025 in Adelaide this November. Applications close in one week. Apply now
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