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Our goal is to provide academics, governments, international organisations and NGOs with information for research and evidence-based evaluation of public policies.

We do not offer information or counselling to individuals interested in acquiring the citizenship of a particular country and we do not encourage experts in our network to answer such requests.

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"As a citizenship studies scholar and activist, I now use the EUDO site regularly especially when I am asked to comment on various developments in citizenship law and politics. I really don't know of a comparably rich and well designed source of information on citizenship laws"

Engin Isin, Chief Editor of the journal Citizenship Studies

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"European Citizenship is meant to be complementary to Member State nationality. The one cannot be studied or understood without the other. Now the resource exists to realize that imperative"

Joseph Weiler, New York University

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Comparing Citizenship Laws: Loss of Citizenship

This page provides information on how citizenship is lost in all countries covered by EUDO CITIZENSHIP.

In order to make citizenship laws comparable across countries, which is one of the core aims of EUDO CITIZENSHIP, we use a comprehensive typology that covers the wide variety of ways in which people can acquire and lose citizenship of a country. Our typology distinguishes between 15 ‘modes of loss’, or ways in which citizenship can be lost.

In the modes of loss database users can generate overviews by country, containing all active regulations for individual countries, or generate comparative overviews across countries for selected modes. The overviews are based on detailed comparative questionnaires answered by citizenship experts in all of the countries covered by EUDO CITIZENSHIP. The overviews by country and by mode can be exported in .xls format.

The database on modes of loss was compiled by Maarten P. Vink and Gerard-René de Groot, based on information from comparative questionnaires submitted by the legal experts of the countries covered by EUDO CITIZENSHIP.

 

Click here to visit the EUDO CITIZENSHIP modes of loss database

 

Citizenship laws often use different terms for similar rules. Comparing legal provisions on acquisition and loss of citizenship requires therefore a standardisation of terms and definitions. See the EUDO Citizenship glossary for definitions of all terms used in the Modes of acquisition database and the comparative reports.

For more information on the methodology of comparing acquisition and loss of citizenship read Harald Waldrauch’s 2006 report.