The European Society of International Law (ESIL) is a dynamic network of researchers, scholars and practitioners in the field of international law. The Society’s goals are to encourage the study of international law, to foster inquiry, discussion and innovation in international law, and to promote a greater understanding of the role of international law in the world today. Membership of the European Society of International Law is open to all those with an interest in international law who are willing to contribute to the realisation of these goals.

To join the Society or renew your membership, go to the online membership platform, select your membership category, click on ‘’proceed to payment’’, log in to your account (or create an account if you are a new member) and follow the instructions. You can pay by credit card or bank transfer. If you have any questions about membership, please contact the ESIL Secretariat.


If you are interested in Lifetime Membership or Institutional Membership, please see the relevant webpages or contact the ESIL Secretariat for further details.



(saving €50)
€ 85€ 40
for members who work or study in these countries
€ 60 - -€ 20

* Retired members are aged over 65 years and no longer in full-time employment.

** Student Members study full-time at undergraduate, postgraduate or PhD level. Members who have defended their PhD are not student members, and they pay the regular membership fee.

*** Reduced fees are offered to members who study or work in lower-income countries. Eligibility is not based on nationality or place of residence. Be sure to check the list of relevant countries before choosing to pay a reduced fee.

Membership fees represent the Society’s one and only source of income. We kindly ask all members who can afford it to pay the standard fee.


  • You are part of a global network of people interested in international law.
  • You receive regular emails about ESIL events all over the world.
  • You pay reduced registration fees at ESIL Annual Conferences.
  • You can attend ESIL Research Fora.
  • You can join ESIL Interest Groups and participate in their activities. (Members can indicate the groups they wish to belong in their online membership account).
  • You receive quarterly ESIL Newsletters, regular ESIL Reflections, and monthly ESIL Updates by email.
  • You can post announcements in the Members’ News section of the ESIL website to share information with other members about conferences, workshops, seminars, summer schools, research posts, etc.
  • You receive an online subscription to the European Journal of International Law  (four issues per year); Oxford University Press (OUP) will provide instructions on how to access the online subscription.
  • The print edition of EJIL is available to ESIL members at a special reduced price of 15 euros. If you wish to find out more, please contact quoting “European Journal of International Law, ESIL” in the subject line.
  • You can participate in the election of office-holders of the Society and, after one year of membership, you are eligible to stand for election to the ESIL Board.


Membership of the society is for the calendar year (January to December), regardless of the date of joining the society. All members joining/renewing their membership between 1 November and 31 December will be accorded membership for the following year.


If you change your email address at any time, please inform the ESIL Secretariat and also update your online account.


Notice to our UK-based members:

ESIL has been included in HMRC’s list of approved bodies for income tax relief for membership subscriptions (List 3). This means inter alia that, subject to the rules of your home institution, you may be able to use your research or travel allowance to pay for your ESIL membership. You/your institution’s financial officer can obtain income tax relief by quoting HMRC reference T1644/30/2014/HEM.