Norwegian citizenship: residence, family and dual nationality

Citizenship is a separate long-term decision

Norwegian citizenship is not obtained simply by registering a business, buying a home or reaching the third year of a renewable permit. First establish the person’s existing nationality, permission history, residence periods and family relationship. Different categories can produce different qualifying periods.

The ordinary adult route requires a documented identity, qualifying residence and status, continued residence intentions and the applicable conduct, language and knowledge conditions. An application for citizenship does not itself extend a residence permit.

The main residence calculations

Shorter residence: use the right income measure

UDI’s sufficient-income rule uses three times the relevant average National Insurance basic amount and the appropriate tax settlement. Where the 2025 settlement is available in 2026, the published threshold is NOK 384,348. The measure is the settlement’s sum of income before deductions, not simply the net taxable-income figure.

Keep the actual settlement and identify the year used. A newly increased salary is not automatically equivalent to a completed qualifying tax year, and older thresholds should not be copied into a new application.

Status, knowledge and conduct

Marriage and same-sex relationships

Norwegian marriage law is gender-neutral. A particular foreign marriage still has to be valid and recognisable for the application concerned. The family-residence route recognises qualifying spouses, registered partners and cohabitants; it has its own age and maintenance requirements.

For the shortened citizenship calculation, qualifying relationship years and residence years can overlap. Time living together abroad may contribute to the relationship period without becoming Norwegian residence. If the partner became Norwegian later, the relevant citizenship history affects the relationship clock.

Dual nationality and children born abroad

Norway has permitted dual citizenship since 1 January 2020. The other country’s law must be checked independently. Permission to hold both nationalities is also separate from Norway’s retention rule for some people who acquired Norwegian citizenship at birth abroad.

For births on or after 1 September 2006, having a Norwegian mother or father at birth ordinarily transmits citizenship, subject to establishing the relevant parentage. Earlier births require the rules applicable at that time. Do not infer citizenship solely from a grandparent or an old family surname.

The age-22 retention check

A person who was Norwegian from birth, has another nationality and has not accumulated the required Norwegian or Nordic residence before age 22 may need to apply to retain citizenship. The dedicated UDI guide uses two years in Norway or seven years in the Nordic countries as the residence tests.

Review the position well before the birthday. This is different from a passport-renewal appointment, and the exceptions and evidence of connection need their own assessment. UDI’s dedicated retention page should be used rather than relying on an ambiguous summary in another article.

Build the nationality file

Create a chronological table of permits, residence and absences, then attach identity, tax-settlement, language/test and relationship evidence relevant to the category. Resolve inconsistencies before filing. The current adult application fee is NOK 6,500; children under eighteen are exempt from that citizenship application fee under the published schedule.

Use the current personalised checklist and waiting-time information. A residence period is an eligibility component, not a promised passport-delivery date. A planning discussion should identify the route and evidence gaps before deciding whether an application is ready.