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.

Join or renew by 30 April 2025 to
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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.
- $295 / year
- $265 / 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.
- $165 / year
- $145 / 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.
- $165 / year
- $145 / 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.
- $165 / year
- $145 / 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.
- $80 / 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
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COSAoncology 27 minutes ago
Our March member newsletter is out now. Check your inbox or log into your COSA account for the latest COSA news, member updates, journal articles and events. bit.ly/4j4unRT
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COSAoncology 7 days ago
Check your inbox for the latest COSA Nutrition Group eNews. Or to subscribe, login to your COSA member account bit.ly/4cI0nc3 and update your preferences. Or members can view the eNews online anytime at bit.ly/4kYm5ww
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COSAoncology 12 days ago
The take-out from Cancer Survivorship 2025 from co-convenor Bogda Koczwara. The conference theme was building capability and capacity in survivorship care and research. Courage, conviction, communication and collaboration were also firmly on display. #Surv25
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COSAoncology 13 days ago
After two days of amazing participation from health professionals and consumers, co-convenor Michael Jefford is energised to build on the improvements we're seeing in survivorship care. #Surv25
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COSAoncology 14 days ago
Congratulations to Best of the Best Poster Winner at #Surv25, Daniel Johnstone from Cancer Voices SA, for his poster, 'Patient-Teachers: A cancer-consumer informed approach to using stories of lived experience in healthcare student education.'
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COSAoncology 14 days ago
Congratulations to Best of the Best Rapid Fire Oral Winner at #Surv25, Chad Han, for his presentation on 'Implementing a nurse-enabled, integrated, shared-care model involving specialists and GPs in breast cancer post-treatment follow up (EMINENT) bit.ly/4kGPtqS
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COSAoncology 14 days ago
Congratulations to the Best of the Best Oral Winner at #Surv25, Ben Smith from the Daffodil Centre, for his presentation on 'Addressing fear of cancer recurrence in routine care: Feasibility of implementing a clinical pathway.' Read the paper: bit.ly/3XHO49L
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COSAoncology 19 days ago
Cancer Survivorship 2025 - Day 1 of thought provoking presentations and stimulating discussions around important survivorship topics including financial toxicity, living with metastatic cancer, and providing tailored person-centred care. Bring on Day 2! #Surv25
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COSAoncology 20 days ago
Our 2025 National Cancer Survivorship Conference begins tomorrow. Be prepared for an exciting program showcasing innovations in survivorship care, research, advocacy and policy. Plus opportunities to meet, mingle and collaborate. bit.ly/3F6okgT #Surv25
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COSAoncology 27 days ago
The theme for COSA-IPOS 2025 in Adelaide in November is 'Optimising care, optimising outcomes – Partnering to improve outcomes for all'. For consideration in the program, submit your abstract by Friday 6 June 2025. For details: bit.ly/3XiOu6x #COSA25
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