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.

It's time to join or renew for
2025 COSA membership
Join or renew now
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 7 hours ago
Congratulations COSA members and friends who were recognised with #KingsBirthdayHonours including oncology nurse and researcher, Catherine Johnson AM, and radiation oncologists and researchers, Prof Michael Poulsen AM and Prof Gerard Fogarty OAM. These honours are well deserved
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COSAoncology 10 hours ago
Need a reminder of how to renew your COSA membership? These steps show how: bit.ly/3s5mOC6
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COSAoncology 4 days ago
Join COSA, the national multidisciplinary community for health care professionals working in cancer care. Interested? Here’s how to join: bit.ly/3hXsDLm
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COSAoncology 5 days ago
Did you know @UTS_CST members can join COSA at a discounted rate? Thank you for continuing your Affiliated organisation membership with COSA! bit.ly/3s5mOC6
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COSAoncology 5 days ago
Check your inbox for the June Nutrition Group eNews for member updates, journal articles, PD and more. If you're not subscribed, login to your COSA member account bit.ly/4cI0nc3 to update your preferences. COSA members can view the eNews online at bit.ly/4jxMgbq
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COSAoncology 6 days ago
Call nominations for the 2025 COSA Psycho-Oncology Awards recognising outstanding contributions to psycho-oncology from members of COSA and @POCOG1. Nominations close 30 June 2025 and the awards will be presented at COSA-IPOS 2025 in Adelaide in November. bit.ly/4i9Avrg
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COSAoncology 7 days ago
Thank you to @ANZCHOG for continuing to be an Affiliated member organisation with COSA. We look forward to continuing our collaboration to improve cancer care. You can find a list of all COSA organisation members on our website: bit.ly/44ns3Oq
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COSAoncology 7 days ago
We are pleased that @ALLGtrials continue to be an Affiliated member organisation with COSA, and look forward to our ongoing collaboration to improve cancer care and control. ALLG members can join COSA at a discounted rate. Join or renew here: cosa.org.au/membership/mem…
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COSAoncology 8 days ago
Time is running out to submit your abstract for inclusion in COSA-IPOS 2025! Submissions close Friday 6 June – no extensions! The joint meeting provides an international platform for sharing insights, highlighting innovation, influencing best practice. bit.ly/3XiOu6x
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COSAoncology 12 days ago
Thank you @anzgog for continuing your Affiliated organisation membership with COSA. Don’t forget, ANZGOG members can join COSA at a discounted rate. bit.ly/3s5mOC6
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