SIOP 2021 Online registration is now close.

Fees (in USD) apply to payments received prior to the indicated deadlines.



Physicians – High Income Countries 

Physicians – Upper Middle Income Countries

Nurse/Other Professions, HCP *** – High Income Countries 

Nurse/Other Professions, HCP*** – Upper Middle Income Countries

All professionals - Low & Lower-middle Income Countries **


Clinical research associate, clinical research nurse or data manager

CCI Member


Physicians – High Income Countries 

Physicians – Upper Middle Income Countries  

Nurse/Other Professions, HCP *** – High Income Countries

Nurse/Other Professions, HCP *** – Upper Middle Income Countries  

All professionals - Low & Lower-middle Income Countries **

Trainee****/ Parents and survivors NON CCI members 

Clinical research associate, clinical research nurse or data manager

until july 27, 2021

$ 200









$ 225

$ 240

$ 120

$ 50

$ 50

$ 50

 LATE fees

From july 28, 2021


$ 150

$ 180

$ 120


$ 60



$ 540

$ 275

$ 300

$ 180

$ 100

$ 100

$ 100

* SIOP, IPSO and PROS Members: in order to apply for this category, please ensure your membership is approved and fees are paid for 2021 before you start the registration process. Registration will not be confirmed otherwise.

To join/renew your SIOP Membership – please click here and choose the ‘Non-member’ option

** Low income & Lower-middle-income economies as listed here and defined according to the World Bank Country Classification. Click here to see the list of countries

*** Psycho social workers and Health care professionals.

****  Proof of Trainee status is mandatory – In order to benefit from the special fee, a submission of your status confirmation (approval letter signed by the Head of Department or copy of your status ID) must be uploaded during the Online registration.

Fees for all Congress Participants Include:

  • Open access to all presentations and session recordings. Create your own schedule, attend any and all of the sessions whenever and wherever.
  • Network with colleagues. Browse a list of participants and click on their name to contact them.
  • Earn CME credits. Participate in the scientific programme and be eligible to receive the number of CME credits attributed to the virtual meeting.
  • Access all the e-posters. Browse research on the hottest topics published in the congress digital abstract book and connect with the abstract authors and other colleagues from around the world through the e-poster virtual consultations.
  • Join the debate. Attend a session recorded and streamed live to allow participation delegates from all over the world to participate in live conversations.
  • Give feedback. Use the short session surveys to rate the sessions and help us improve the overall quality of the programme.
  • Visit the virtual exhibition hall. Journey through the exhibition booths, explore the displayed materials, contact exhibitors directly, and chat with other visitors.

Payment Methods

Payment of registration fees (in USD) can be made as follows:

By Credit Card:
Visa, MasterCard or American Express

By Bank Transfer:

  • Additional 30 USD handling fee is required.
  • Please ensure that the name of the participant is stated on the transaction draft.
  • Bank charges are the responsibility of the payer and should be paid in addition to the registration fees. Please make drafts payable to:
  • Account Name: SIOP 2021 Congress (Account holder: Kenes International)
    Bank details: Credit Suisse Geneva, 1211 Geneva 70, Switzerland
    Bank Code: 4835
    Swift No: CRESCHZZ80A
    Account Number: 1500934-92-307
    IBAN No: CH68 0483 5150 0934 9230 7

Registration will only be valid upon receipt of the full payment by the registration department according to the deadline indicated. An email confirming registration will only be sent after receipt of the required fees.

Outstanding payments will be collected and charged the late rate. A copy of the bank transfer (or other proof of payment) will be required in the event that registration fees were not credited to the Congress account on time.

Registration Cancellation Policy:

All cancellations must be electronically mailed. Refund of registration fee will be as follows:

  • Cancellations received up and including July 28, 2021 – full refund.
  • Cancellations received between July 29 until October 4. 2021 – 50% will be refunded
  • As of October 5, 2021 – no refund will be made.

Note: in case of cancellation at any stage, Bank transfer handling fee (30 USD) will not be refunded – applicable to Bank Transfer payments only.

Group Registration:

For group registration (10 participants and more) please contact the registration department at:

For inquiries, please contact:   

SIOP 2021 Registration Department

Rue François-Versonnex 7
1207 Geneva, Switzerland
Tel: + 41 22 908 0488
Fax: + 41 22 906 9140