Icelandic Citizenship by Descent and Dual Citizenship (2026) (2026 Legal Guide) — Rules & Requirements
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Sourced from Icelandic Acts of the Althingi, statutory instruments, and official guidance. Written in plain language for general understanding — this is educational content, not legal advice. Our editorial standards
What is this right?
This page covers Icelandic citizenship by descent and dual citizenship. For the residence-based grant route (the general 7-year rule, the Icelandic test, fees), see the grant under Lög 100/1952.
Citizenship by descent (jus sanguinis): Under Lög nr. 100/1952, a child born anywhere in the world to an Icelandic parent automatically acquires Icelandic citizenship at birth. This applies to children born to either an Icelandic mother or an Icelandic father (the Act was amended in 1982 to equalise the maternal and paternal lines). Children born abroad to an Icelandic parent who was themselves born abroad may need to apply to retain citizenship before the age of 22 — the Directorate of Immigration can allow retention if applied for before age 22, and there is an exception for those who have lived for 7 years in another Nordic country. Confirm the current rule with the Directorate of Immigration before relying on automatic descent through several foreign generations.
Dual citizenship: Iceland has allowed dual citizenship since the 1 July 2003 revision of the citizenship law. You are not required to give up your previous nationality on the grant, and Icelandic citizens by birth do not lose their Icelandic citizenship on acquiring a foreign nationality. Children born before 1 July 2003 who lost Icelandic citizenship under the older rules can apply to recover it under transitional provisions.
Recovering former citizenship: Former Icelandic citizens may recover citizenship after 1 year of legal residence under § 8(2) of the Act — a much shorter window than the general 7-year rule.
Related: If you are seeking citizenship based on residence rather than descent, see the grant under Lög 100/1952. EEA/Nordic citizens seeking residence (not citizenship) should look at EEA family-member residence cards.
When does it apply?
- You have been legally resident in Iceland for the required time and want to become a citizen.
What to do if you want to apply for Icelandic citizenship
- Pass the Icelandic test (held by Mímir at regular intervals).
- Apply through the Ministry of Justice (dómsmálaráðuneytið) or the Althingi's grant process.
- Make sure you have no outstanding tax debts or convictions.
What should you NOT do?
- Don't let gaps in residence reset the counter — continuous legal domicile is required.
- Don't skip the Icelandic test — it is a requirement (exemptions are rare).
About Immigration Rights in Iceland
If you live in Iceland on a visa, your rights are under Útlendingalög (the Foreign Nationals Act, Lög nr. 80/2016). EEA/EFTA and Nordic citizens can live and work without a permit, but EEA citizens register after 3 months. Non-EEA citizens need a residence permit and a work permit applied for by the employer under Lög um atvinnuréttindi útlendinga (the Act on the Right of Foreign Nationals to Work, Lög nr. 97/2002). Family reunification requires a minimum income and housing. Asylum follows Lög um alþjóðlega vernd (the International Protection Act, Lög nr. 121/2020), with appeal to the Immigration Appeals Board. Citizenship under Lög nr. 100/1952 usually requires 7 years' residence.
Common Questions
How long do I need to live in Iceland to get citizenship?
Usually 7 years of continuous legal domicile. Nordic citizens need 4 years. Spouses of Icelandic citizens need 3 years of residence after marriage (the spouse must have been a citizen for 5+ years) or 4 years of cohabitation. Former citizens need 1 year. Stateless persons and refugees need 5 years.
Do I have to pass a test for Icelandic citizenship?
Yes, an Icelandic test held regularly by Mímir. Exemptions are rare. Other requirements are the age of legal majority, self-sufficiency (not dependent on public assistance), good standing and no outstanding tax debts. Applications go through the Ministry of Justice and the Althingi's grant process.
Does Iceland allow dual citizenship?
Yes. You are not required to give up your previous nationality. Don't let gaps in residence reset the counter — continuous legal domicile is required. Clear all tax debts and have no recent convictions before applying.
What is the citizenship right in Iceland?
This page covers Icelandic citizenship by descent and dual citizenship. For the residence-based grant route (the general 7-year rule, the Icelandic test, fees), see the grant under Lög 100/1952.Citizenship by descent (jus sanguinis): Under Lög nr. 100/1952, a child born anywhere in the world to an Icelandic parent automatically acquires Icelandic citizenship at birth. This applies to children born to either an Icelandic mother or an Icelandic father (the Act was amended in 1982 to equalise the maternal and paternal lines). Children born abroad to an Icelandic parent who was themselves born...
When does it apply — citizenship?
You have been legally resident in Iceland for the required time and want to become a citizen.
What should I do to apply for Icelandic citizenship by grant?
Pass the Icelandic test (held by Mímir at regular intervals).Apply through the Ministry of Justice (dómsmálaráðuneytið) or the Althingi's grant process.Make sure you have no outstanding tax debts or convictions.
What should you NOT do — citizenship?
Don't let gaps in residence reset the counter — continuous legal domicile is required.Don't skip the Icelandic test — it is a requirement (exemptions are rare).