About registration

Hybrid congress

Due to the current global COVID-19 pandemic, the IASSIDD 2021 organizing committee decided to host the IASSIDD 2021 congress for the first time as a hybrid congress. This means  IASSIDD 2021 gives the international and local participant the opportunity to take part online and meanwhile 180 participants have the opportunity to join the congress onsite. Engagement, interaction and networking remain possible for all participants. You can connect with other delegates and speakers regardless  whether you're joining the congress onsite or online.

Please note that, whilst it is now planned to host the IASSIDD 2021 congress as a hybrid congress, we will continue to monitor the situation in the lead up to the event with the health and wellbeing of our delegates remaining our top priority.

To join IASSIDD 2021 click the Register button below. Please be informed that registration will open March 8, 2021!

Details congress registration fees

  • All congress participants must pay the registration fee.
  • There will be two types of registration: 1. onsite congress fees and 2. online congress fees.
  • All registration fees are listed in Euro (€) and include VAT as applicable.
  • Delegates will be able to choose their preferred form of attendance given the options below:
Onsite registration fees Early fee (from March 1 - April 30) Regular fee (from May 1 - June 30) Onsite fee (from July 1, 2021)
Participant € 575 € 625 € 700
Student € 195 € 245 € 320
IASSID member € 250 € 395 € 550
IASSID student / participant with IDD incl. 1 assitent € 190 € 230 € 260
Online registration fees Fee (from March 1, 2021)
Online1 day € 150
Online 2 days € 225
Online 3 days € 300
Online1 day IASSIDD member € 75
Online 2 days IASSIDD member € 125
Online 3 days IASSIDD member € 175


There is only one possible way to register for the IASSIDD 2021 congress and that is through the online registration system on the website www.IASSIDD2021.com

Student registration

Students should hold a valid student ID, and will be asked to submit the student ID during registration.

Secure online payment

Payment must be made in Euro. We offer secure online payment through Triple Deal, a global operating payment service provider based in the Netherlands and specialized in online and offline payment services. You can pay online by MasterCard, Visa Card or iDeal (for Dutch participants only).


All cancellations and substitutions must be notified only in writing by e-mail to the congress secretariat This email address is being protected from spambots. You need JavaScript enabled to view it.. All refunds will be processed after the IASSIDD 2021 congress.

  • Cancellations received before April 30, 2021 -  70% of the fee will be refunded
  • Cancellations received from April 30 – June 6, 2021 -  30% of the fee will be refunded
  • Cancellations from June 7, 2021 will not receive a refund. However the registration may be transferred to another name at no cost.


The invoice is issued upon request by email to This email address is being protected from spambots. You need JavaScript enabled to view it.. Please note that it takes about 3 days. The invoice will be issued based on the billing information provided during your registration process.

Invitation letter

The congress secretariat will be pleased to send a formal letter of invitation to delegates that have completed their registration for the congress and have paid the registration fee. During the registration process the needed details can be inserted and a request for an invitation letter may be submitted. It is understood that such an invitation is intended to help potential delegates to raise funds or to obtain a visa. This does not imply a commitment from the congress to provide any financial support. Invitation letters will be sent by e-mail.


The registration fee does not include any insurance for participants. Participants are advised to take out adequate insurance.

Our sponsors


Events Center Amsterdam UMC
VUmc | Medische Faculteit C2
Van der Boechorststraat 7
1881 BT Amsterdam
This email address is being protected from spambots. You need JavaScript enabled to view it.

IASSIDD - International Association for the Scientific Study of Intellectual and Developmental Disabillities

Copyright®  -   Privacy Policy