Registration for authors: CLOSED
Registration for conference attendees: CLOSED


For each Accepted Paper one author must register, pay the registration fee and  present the paper at the virtual conference. The registration fee covers one accepted paper. Speakers presenting multiple papers may pay an extra paper fee for each extra paper.

Registration deadline for authors: 14th May 2021 (without registration by the deadline the paper will not be included in the conference program and will not be published in IFAC PapersOnline). 

Acknowledgement of registration will be sent after receiving your payment.

Cancellation of registration must be submitted by writing an email to

According to the Hungarian tax regulations in force, 27% VAT should be paid for those who are not in possession of a European VAT No. or any VAT Number from the non-EU countries. Please provide your VAT number during registration to avoid extra charges. For all other participants, including Hungarian residents, the given net fee + 27% VAT must be charged.

To request a pro forma invoice, please send this document filled out to

Virtual event registration fees

The registration includes:
- Access to all on-line events
- Access to all papers and presentations until 31st August 2021

Participation as a presenter
until 30th April
as an attendee
Registration fee250 EUR100 EUR
Student fee*200 EUR50 EUR
Extra paper fee100 EURX
*For student registration a scan of a valid student’s card will have to be sent to together with the registration form.

Young Author Support

The IFAC Foundation invites young authors who are giving papers at the IFAC INCOM 2021 Symposium to apply for Developing Countries –Young Author Support consisting of waive of registration fees.

Here you can find the Announcement and the Application Form.

Deadline for application: CLOSED

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