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 not too late to join or renew for
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
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COSAoncology 4 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 https://t.co/ymyaCOgDFc Register today! https://t.co/pggKjaOfQP pic.twitter.com/yx3Ch7KjuO
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COSAoncology 5 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. https://t.co/3vJalW6Vz1 pic.twitter.com/dfLFRIXDXO
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COSAoncology 6 days 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 https://t.co/8hv7lk8dOP pic.twitter.com/WQl45I3970
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COSAoncology 11 days ago
Are you joining us in Adelaide in November for #COSAIPOS2025? Earlybird discounts end in 2 weeks. So grab the opportunity today to connect with new and familiar faces for an exciting multidisciplinary, interdisciplinary and transdisciplinary program. https://t.co/pggKjaOfQP pic.twitter.com/KIiJhGv2pC
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COSAoncology 13 days ago
New Survivorship Fellowship opportunity. COSA is offering an early career researcher mentorship, guidance and support to lead a project mapping survivorship in state, territory and national cancer plans. Find out more https://t.co/zSxOHWIk7e pic.twitter.com/w2HBs0hsbP
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COSAoncology 15 days ago
In partnership with @CancerCouncilOz we're offering three travel grants of up to AUD$3,300 to support Aboriginal & Torres Strait Islander delegates to attend COSA-IPOS 2025 in Adelaide in November. Applications close Wed 27 Aug COB AEST. Apply now https://t.co/8hv7lk8dOP pic.twitter.com/ioGhxuuPHx
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COSAoncology 21 days ago
Vaping has become widespread in Australia, yet there is limited consolidated information about the potential harms. Launched today, COSA's E-Cigarettes and Cancer research report distils the current scientific knowledge on vapes as a cancer risk. https://t.co/a4Zt185NBl pic.twitter.com/p6v3TjpyCX
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COSAoncology 27 days ago
Our July member newsletter is out now. Check your inbox for the latest COSA news and updates including webinars, events, opportunities and peer-reviewed journal articles. Or log in and view it online anytime at https://t.co/NWPGXS7ZdY pic.twitter.com/JgLDyyvYsr
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COSAoncology one month ago
Our Financial Toxicity Working Group is hosting a webinar on Monday 28 July for COSA members to hear about service developments in financial navigation and how they align with implementation of the COSA Roadmap to Reducing Financial Toxicity. For more info https://t.co/tVgR2OVfK5 pic.twitter.com/buauGOpSw1
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COSAoncology one month ago
COSA's Nutrition Group Speed Networking Event is on Fri 25 July. COSA members, here's your chance to meet leading dietitians & researchers Jane Stewart, Merran Findlay & Emily Jeffery and connect with others interested in nutrition and cancer! Register at https://t.co/9J6Vh0oNqF pic.twitter.com/M2UDU6X9jt
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