Naturalisation and Citizenship Timelines in Europe by Country

What this guide covers (and what it does not)

This guide compares one number across European countries: how many years of legal residence a country officially asks for before you may apply to become a citizen (naturalisation). It is a neutral country-by-country reference, not a step-by-step PR or visa guide — those mechanics live in the permanent-residence and EU long-term residence guides.

Two points matter throughout. First, the residence-for-citizenship clock is usually different from the permanent-residence clock, and time on a student permit may count fully, partly, or not at all (see the dedicated student-years guide). Second, every country also attaches other conditions — language level, an integration or civics test, income, and a clean record. The year figure alone never decides an application.

This is general information, not legal or immigration advice. Naturalisation rules change, so treat each number below as a starting point and confirm it on the country's official government source before relying on it.

Five-year countries: Germany, France, the Netherlands

Several major study destinations sit at a five-year standard residence period. In Germany, the Nationality Act reformed on 27 June 2024 set the ordinary route at five years of lawful residence (the earlier three-year fast-track route was repealed in October 2025); applicants must also show German at B1 and pass a naturalisation test.

France's main route, naturalisation by decree, also requires five years of habitual residence in most cases, a valid residence permit when applying, and proof of integration including French at B2.

The Netherlands likewise asks for five consecutive years of residence with a valid permit, plus the civic integration exam — and, as a rule, renunciation of your other nationality unless an exemption applies (covered in the dual-citizenship guide).

Treat these as the headline rule only — the exact residence period, the qualifying-permit rule and the language level all change, so verify the current figure on each country's official source.

• Germany — 5 years standard (since 27 June 2024); B1 + naturalisation test — verify officially
• France — 5 years for naturalisation by decree; B2 French — verify officially
• Netherlands — 5 consecutive years; civic integration exam; renunciation rule with exceptions — verify officially

Eight years: Sweden (new rules from 6 June 2026)

Sweden changed its citizenship rules on 6 June 2026. The general habitual-residence requirement rose from five to eight years. Shorter periods apply to specific groups — for example a reduced period for Nordic citizens and former Swedish citizens, and a separate reduced period for refugees, partners of Swedish citizens, and younger applicants.

The new framework also introduces tests of Swedish society and, at a later stage, Swedish language, plus income and conduct conditions. Importantly, the Migration Agency assesses pending applications under the rules in force at the date of decision.

Because Sweden's reform is recent and is being phased in, confirm the current residence requirement, the exact reduced periods, the test timetable and which residence permits count directly on the Swedish Migration Agency website before planning around it.

Ten years: Spain, Italy, Switzerland

A ten-year standard applies in Spain, Italy and Switzerland, each with its own structure. Spain's general residence requirement is ten years, but it is much shorter — two years — for nationals of Ibero-American countries, Andorra, the Philippines, Equatorial Guinea and Portugal. Spain generally expects renunciation of the prior nationality, subject to bilateral exceptions.

Italy requires ten years of legal residence for non-EU nationals (registered with the local municipality), plus Italian at B1 and proof of sufficient income.

Switzerland's ordinary naturalisation needs ten years of residence and a C settlement permit, with extra residence conditions set at canton and commune level; integration and familiarity with Swiss life are assessed. Some childhood years can count more favourably toward the total, but the precise counting rule and the cantonal conditions vary — confirm them officially.

• Spain — 10 years general; 2 years for Ibero-American, Andorra, Philippines, Equatorial Guinea, Portugal — verify officially
• Italy — 10 years legal residence; B1 Italian; income proof — verify officially
• Switzerland — 10 years + C permit; cantonal/communal conditions on top — verify officially

Why the same 'number' behaves differently

Two countries can both say 'five years' yet treat your time very differently. What counts as qualifying residence, whether student years count, how absences affect continuity, and which permit you must hold at the moment of applying all vary by country and can change the real timeline.

Reduced periods for specific groups are common — Nordic citizens in Sweden, Ibero-American nationals in Spain, partners of citizens in several countries — so the headline figure is often not the one that applies to you.

Use the number as a planning anchor, then verify the exact residence period, the qualifying-permit rule and the language/test conditions on the official government source for your country before you build a settlement plan around it.