Iceland

Last Updated: 2026-03-31

Official Portal: Utlendingastofnun — Directorate of Immigration

Embassy Finder: Icelandic Diplomatic Missions

Quick Facts

Category	Details
Residency for naturalization	7 years of continuous lawful domicile (4 years for Nordic citizens)
Language requirement	Icelandic language proficiency required (no standardized national exam specified in statute)
Civics test	None
Processing time	12—24 months; naturalization is granted by Althingi (Parliament) through individual legislation
Naturalization fee	ISK 30,000 (approximately EUR 200)
Dual citizenship	Fully permitted since June 2003
Citizenship by birth in Iceland	No jus soli; citizenship based on parentage
Citizenship by descent	Automatic for children of at least one Icelandic parent
Governing law	Icelandic Nationality Act (Lög um íslenskt ríkisfang, No. 100/1952, as extensively amended, most recently 2003 and 2007)

Dual Citizenship

Iceland has fully permitted dual and multiple citizenship since 1 July 2003, when amendments to the Nationality Act took effect.

Pre-2003: Icelandic citizens who voluntarily acquired a foreign nationality lost their Icelandic citizenship automatically. Foreign nationals naturalizing in Iceland were required to renounce prior citizenships.

Post-2003: No renunciation is required in either direction. Icelandic citizens who acquire another nationality retain Icelandic citizenship. Foreign nationals who naturalize in Iceland may keep their existing citizenships.

Transitional provision: The 2003 amendment included a time-limited window (until July 2007) allowing former Icelandic citizens who had lost citizenship under the old rules to reclaim it by declaration. This window has closed, but former citizens may still apply for restoration through the standard legislative process.

EEA note: Iceland is a member of the European Economic Area (EEA) and the Schengen Area, but is not an EU member state. Icelandic citizens have the right to live and work in all EEA/EU countries under the EEA Agreement, but do not hold EU citizenship.

Acquisition of Nationality

By Birth (Jus Sanguinis Only)

Iceland follows a pure jus sanguinis system. There is no jus soli — birth on Icelandic territory alone does not confer citizenship.

A child acquires Icelandic citizenship at birth if:

The mother is an Icelandic citizen (regardless of where the child is born).
The father is an Icelandic citizen and married to the child’s mother at the time of birth.
The father is an Icelandic citizen and the child is born in Iceland, even if the parents are unmarried (the father must have acknowledged paternity).
The father is Icelandic, the parents are unmarried, and the child is born abroad — the father must apply for citizenship on behalf of the child before the child reaches 18 (not automatic).

Gender equality note: The 2003 amendments largely equalized the position of fathers and mothers, but the distinction between married and unmarried fathers born abroad persists as a practical matter in terms of automatic versus application-based acquisition.

By Descent

There is no explicit generational limit on citizenship by descent, but the requirement that the parent must have been an Icelandic citizen at the time of the child’s birth effectively limits indefinite transmission. A person who lost Icelandic citizenship before having children cannot transmit it.

By Adoption

A child under 18 who is adopted by an Icelandic citizen acquires Icelandic citizenship upon the adoption becoming legally effective under Icelandic law. The adoption must be recognized by Icelandic authorities (adoptions from Hague Convention countries are generally recognized).

By Marriage

Marriage to an Icelandic citizen does not confer automatic citizenship. However, a foreign spouse benefits from a reduced residency requirement:

3 years of continuous domicile in Iceland, provided the couple has been married for at least 4 years (or in a registered partnership).
Total combined period must equal at least 5 years (e.g., 4 years married + 3 years resident, or 5 years married + 3 years resident).
The Icelandic spouse must have been a citizen for at least 5 years.

By Naturalization

Naturalization in Iceland is unique in Europe: it is granted by the Althingi (Parliament) through an individual act of legislation (naturalization bill). This means each applicant’s name appears in a bill debated and passed by Parliament.

Requirement	Details
Lawful domicile	7 years continuous domicile in Iceland
Language	Icelandic language proficiency (assessed as part of the application; no single national exam)
Financial self-sufficiency	Must not have received municipal social assistance for the 12 months prior to application
Criminal record	No criminal convictions above specified thresholds; waiting periods apply for certain offenses
Tax compliance	All taxes must be paid and up to date
Character references	Two Icelandic citizens must provide character references
Fee	ISK 30,000

Reduced residency periods:

4 years for citizens of Denmark, Finland, Norway, or Sweden (Nordic privilege).
5 years for spouses/partners of Icelandic citizens (see above).
5 years for former Icelandic citizens.
5 years for stateless persons born in Iceland.
2 years for persons born in Iceland who have been stateless since birth.

Loss and Renunciation

Voluntary Renunciation

An Icelandic citizen may renounce citizenship by declaration to the Ministry of Justice, provided they hold another citizenship (renunciation cannot cause statelessness).

Involuntary Loss

Since the 2003 reform, voluntary acquisition of a foreign nationality no longer causes loss of Icelandic citizenship.

The only remaining ground for automatic loss is:

Age 22 rule: A person who acquired Icelandic citizenship at birth but has never been domiciled in Iceland and has never stayed in Iceland under circumstances indicating a genuine connection may lose citizenship at age 22 unless they apply for retention before that age. This prevents indefinite transmission across generations with no connection to Iceland.

Citizenship obtained by fraud may be annulled.

Restoration of Nationality

Former Icelandic citizens who lost citizenship under the pre-2003 rules (by acquiring a foreign nationality) may apply for restoration. This is processed through the same parliamentary naturalization procedure but with a reduced residency requirement of 1 year of domicile in Iceland. The 2003—2007 declaration window has expired, but the legislative pathway remains available.

Stateless Persons and Foundlings

A child found in Iceland whose parents are unknown is presumed to be an Icelandic citizen.
A stateless person born in Iceland may apply for citizenship after 2 years of continuous domicile (if stateless since birth) or 5 years (if statelessness arose later).
Iceland is party to the 1954 Convention Relating to the Status of Stateless Persons and the 1961 Convention on the Reduction of Statelessness.

Document Checklist

Sources

Icelandic Nationality Act (Lög um íslenskt ríkisfang, No. 100/1952) — As amended through Act No. 81/2007. https://www.althingi.is/lagas/nuna/1952100.html
Utlendingastofnun (Directorate of Immigration) — Official portal for citizenship applications. https://utl.is/en/
Government of Iceland — Ministry of Justice — Nationality law overview. https://www.government.is/
Althingi (Icelandic Parliament) — Naturalization bills and legislative texts. https://www.althingi.is/
Global Citizenship Observatory (GLOBALCIT) — Comparative citizenship law database, Iceland country profile. https://globalcit.eu/

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