Author: HR department
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Taxation in France
Memorandum concerning the internal tax annual certificate and individual annual statement for 2025 (for the 2026 declaration of 2025 income in France)
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Exchange rate for the tax declaration form of 2025 income
For the attention of members of the personnel and pensioners living in France
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UPDATE: all slots already booked | One-to-one meetings with the French tax authorities for CERN members of personnel
Updated on 15 April 2026: Due the high level of interest in individual sessions with the Service des impôts des particuliers (SIP), all available slots have now been booked. Please note that slots may open up if appointments are cancelled, so we invite you to check the registration tool regularly. Alternatively, you can consult the
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Taxation in Switzerland
Memorandum concerning the internal tax annual certificate, the individual annual statement and income tax declaration forms in Switzerland for the reference year 2025
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Summer work for children of members of the personnel in 2026
Summer work for children of members of the personnel in 2026 Written by: HR department — As part of its annual summer work programme, CERN will offer a limited number of short-term summer jobs to children of members of the personnel (i.e. anyone holding an employment or association contract with the Organization). These positions involve
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Operational Circular No. 11 (Rev.1) – The Processing of Personal Data at CERN
Operational Circular No. 11 (Rev.1) – The Processing of Personal Data at CERN Written by: HR department — Operational Circular No. 11 (Rev. 1), entitled “The processing of personal data at CERN”, approved by the Director-General, is now available via the following link. This revision cancels and replaces Operational Circular No. 11, entitled “The processing
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A simpler way to extend maternity leave
A simpler way to extend maternity leave Written by: HR department — Supporting parenthood is important for our Organization and we aim to make the administrative steps relating to the birth of a child as simple as possible. You can now extend your maternity leave by up to four additional weeks, to facilitate breastfeeding, simply
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Annual adjustments to financial benefits with effect from 1 January 2026
Annual adjustments to financial benefits with effect from 1 January 2026 Written by: HR department — In accordance with recommendations made by the Finance Committee and decisions taken by Council in December 2025, the following financial benefits have been adjusted, with effect from 1 January 2026: The new ceilings of education fees will be applied
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CERN Health Insurance Scheme (CHIS) – Monthly contributions as of 1 January 2026
CERN Health Insurance Scheme (CHIS) – Monthly contributions as of 1 January 2026 Written by: HR department — The CHIS contribution rates are unchanged for 2026, but the contributions themselves will evolve due to the change in the relevant Reference Salary (see Chapter XII of the CHIS Rules). Thus, as of 1 January 2026, the
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Official holidays in 2026 and end-of-year closure 2026/2027
(In accordance with Articles R II 4.38 and R II 4.39 of the Staff Regulations)