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
Become a COSA memberTwitter
@COSAoncology
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COSAoncology 8 hours ago
COSA Nutrition Group & Dietitians Australia Oncology Interest Group are hosting a free webinar, Tue 3 June, featuring four projects to enhance the nutritional status of patients undergoing treatment for various cancers. bit.ly/4dJqssp Register bit.ly/4kr6Laz
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COSAoncology 8 days ago
Don’t miss out on a saving! Join or renew by 16 May 2025 to take advantage of 2024 COSA membership rates before prices increase for 2025. bit.ly/3hXsDLm
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COSAoncology 14 days ago
COSA membership renewals are open for 2025/26! All members can take advantage of a saving if you renew manually by 16 May 2025. Don’t miss out: bit.ly/4cI0nc3
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COSAoncology 16 days ago
Thanks to @TROGfightcancer for renewing as a COSA Associated organisation. TROG members are invited to take advantage of discounted COSA membership: bit.ly/3s5mOC6
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COSAoncology 16 days ago
Did you know #OSWANZ members can join COSA at a discounted rate? Thank you to Oncology Social Work Australia & New Zealand for continuing Affiliated organisation membership with COSA! bit.ly/3s5mOC6
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COSAoncology 20 days ago
Thank you, @dietitiansaus for continuing your COSA Associated organisation membership! DA members are invited to join or renew with COSA at discounted rates: bit.ly/3s5mOC6
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COSAoncology 20 days ago
Did you know ANZHNCS members can join COSA at a discounted rate? Thank you to @anzhncs for continuing Affiliated organisation membership with COSA. bit.ly/3s5mOC6
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COSAoncology 20 days ago
Cancer pharmacists will gather in Melbourne this weekend for the COSA CPG Clinical Practice Course. There are streams for those with a basic knowledge and those with an advanced clinical level in oncology and haematology pharmacy practice.
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COSAoncology 21 days ago
Our April member newsletter is out now with Group updates, new resources, journal articles, oncology events and more. Check your inbox or view the COSA eNews online at bit.ly/42SWNrG
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COSAoncology 22 days ago
Join or renew as a COSA member by 16 May 2025 to make a saving! For members, your renewal email is in your inbox today. bit.ly/3hXsDLm
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