IAH 2026 Budapest

IAH 2026

World Groundwater Congress

53rd Congress of the International Association of Hydrogeologists
14-18 September 2026
Budapest Congress Center
IAH 2026 Budapest

Registration fees

Registration is required for all conference participants preferably until 30 June 2026.

Based on the decision of the Organising and Scientific Committees, we would like to inform presenters and authors of the following policy:

Each presenter for one registration may give up to one oral presentation and up to two poster presentations. This policy has been introduced to ensure that the limited number of oral presentation slots can be distributed as fairly as possible and that a wider range of participants can present their work in oral sessions.

full IAH member registration fee
840 EUR

740 EUR (paid until 10 May)


  • Access to the scientific sessions
  • Welcome reception (Monday)
  • Gala dinner (Thursday)
  • Lunches (Tuesday, Wednesday, Thursday)
  • Coffee breaks
  • Conference materials
  • Electronic abstract book
  • Electronic certificate of attendance
  • Not included:field trips

full non-member registration fee
940 EUR

840 EUR (paid until 10 May)


  • Access to the scientific sessions
  • Welcome reception (Monday)
  • Gala dinner (Thursday)
  • Lunches (Tuesday, Wednesday, Thursday)
  • Coffee breaks
  • Conference materials
  • Electronic abstract book
  • Electronic certificate of attendance
  • Not included:field trips

Student / Low income countries
550 EUR

490 EUR (paid until 10 May)


  • Access to the scientific sessions
  • Welcome reception (Monday)
  • Gala dinner (Thursday)
  • Lunches (Tuesday, Wednesday, Thursday)
  • Coffee breaks
  • Conference materials
  • Electronic abstract book
  • Electronic certificate of attendance
  • Not included:field trips

accompanying registration fee
350 EUR

 


  • Welcome reception (Monday)
  • Gala dinner (Thursday)
  • Lunches (Tuesday, Wednesday, Thursday)
  • Coffee breaks
  • Not included:field trips
  • Please note, this category is dedicated for spouses, family members, etc., not for experts of the field, the category neither contains access to the Conference sessions, nor the scientific materials.

Terms and conditions of participation

Advanced online registration is a condition of participation in the workshop. During the online registration you should accept the terms and conditions of participation as well as the terms of cancellation written on this website. The registration fee/accompanying person’s registration fee includes entertainment allowances, such as catering services, reception, dinner etc. In the final invoice the amount of these services will be indicated as intermediary service. See also the general terms and conditions here.

Cancellation policy of registration

All the cancellations and changes must be sent to Diamond Congress Ltd. in written form. All refunds will be processed after the IAH 2026. Please send your exact bank account details in the written cancellation.

Refund of the registration fee will be made as follows:

  • 100% refund (minus an administrative fee of 50 Euro) –
    in case of cancellation received before 30 June 2026
  • No refund – in case of cancellation, received after 30 June 2026

Payment

All payments should be made in Euro. All charges due to bank transfers have to be paid by the sender. We advise you to bring the proof of payment with you when registering for the event in Budapest.

Pre-payment can be made either by major credit cards (MasterCard, Visa) during the secure online registration or by bank transfer payable to:

Bank transfer has to be made to

Diamond Congress Ltd. – IAH 2026
Raiffeisen Bank Zrt.
Address: 1015 Budapest, Széna tér 1/a.
International Bank Account Number:
(IBAN) HU79 12010154 00175156 00200001
SWIFT code: UBRT HUHB

Registration fees are to be paid IN ADVANCE using a credit card or bank transfer against pro forma invoices which should be generated by the participants themselves in their personal record. Only paid registrations are acknowledged by sending a confirmation to each participant to the email address used during registration. Official paid invoices are sent to all delegates AFTER the payment is made. Please be aware that final invoices CANNOT be sent legally prior to fulfilment of the services. On site, registration fees and optional programmes can be paid in cash in EUR or in Hungarian Forint. Besides, MasterCard and Visa cards are accepted. The organisers regret that cheques cannot be accepted.

Credit Card

For the online payment VISA, EuroCard/MasterCard number are suitable with expiry date, card holder’s name, billing address of the cardholder and CVV code (the last three digits on the back of the credit card where the signature is – only VISA and EC/MC). For further details please read our short manual

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Venue
Budapest Congress Center
1123 Budapest, Jagelló u. 1-3.
+36 1 372 5400
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rotaqua

Platinum sponsor
https://www.dhigroup.com/
Silver sponsor
https://www.veolia.hu/en

Silver sponsor
https://www.traqua.be/

Silver sponsor
AGT

Silver sponsor
sciengineer

Silver sponsor
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