Citizenship acquisition in European countries varies significantly from country to country: in some cases, 3–5 years of residence is sufficient, while in others the process may take more than 10 years or require special conditions. The main factors for naturalization are usually legal residence duration, knowledge of the national language, level of integration into society, financial stability, and a clean criminal record.

Some countries offer simplified programs for investors, refugees, or individuals with family ties, while others apply strict multi-stage procedures including exams in language, history, and the constitution. It is also important that some countries allow dual citizenship, while others require renunciation of previous citizenship.

The table below summarizes all European countries with their main naturalization requirements to compare where citizenship is easier or more difficult to obtain.

🇪🇺 European Citizenship (Naturalization)

CountryResidence YearsLanguageMain Requirements
🇦🇱 Albania5 yearsAlbanianstable income, no criminal record, integration
🇦🇩 Andorra20+ yearsCatalanrenunciation of other citizenship, very strict process
🇦🇹 Austria10 yearsGermanstable income, integration, usually renunciation of previous citizenship
🇧🇪 Belgium5 yearsDutch/French/Germansocial integration, economic activity
🇧🇦 Bosnia and Herzegovina8–10 yearsBosnian/Serbian/Croatianlong process, loyalty checks
🇧🇬 Bulgaria5 yearsBulgarianincome, housing, sometimes investment programs
🇭🇷 Croatia8 yearsCroatiancultural knowledge, security checks
🇨🇾 Cyprus7 yearsGreek/Turkishintegration, investment or standard route
🇨🇿 Czech Republic5–10 yearsCzechlanguage exam, history, financial stability
🇩🇰 Denmark9 yearsDanishvery difficult citizenship test, financial independence
🇪🇪 Estonia8 yearsEstonianA2–B1 language, constitution exam
🇫🇮 Finland5 yearsFinnish/Swedishlanguage + stable income + integration
🇫🇷 France5 yearsFrenchassimilation, B2 language level
🇩🇪 Germany5–8 yearsGermanintegration test, income
🇬🇷 Greece7 yearsGreekintegration exam
🇭🇺 Hungary8 yearsHungariansimplified for ethnic Hungarians
🇮🇪 Ireland5 yearsEnglishresidence and good conduct
🇮🇹 Italy10 yearsItalianlong process, income proof
🇱🇻 Latvia10 yearsLatvianlanguage test + history + oath
🇱🇹 Lithuania10 yearsLithuanianintegration + language
🇱🇺 Luxembourg5–7 yearsLuxembourgish/French/Germanlanguage + integration course
🇲🇹 Malta1–3 yearsEnglish/Malteseinvestment or special route
🇳🇱 Netherlands5 yearsDutchintegration exam
🇵🇱 Poland3–10 yearsPolishstable income
🇵🇹 Portugal5 yearsPortugueseone of the easiest pathways
🇷🇴 Romania8 yearsRomanianlanguage + history
🇸🇰 Slovakia8 yearsSlovakfinancial stability
🇸🇮 Slovenia10 yearsSlovenianintegration
🇪🇸 Spain10 yearsSpanishintegration exam
🇸🇪 Sweden5 yearsSwedishsometimes no language test

Main Ways to Obtain Citizenship in the EU

1. Naturalization (Residence)

The most common path:

  • 3–10 years of legal residence
  • stable income
  • language knowledge
  • integration into society

2. By Birth

Some countries grant citizenship based on parents’ status.

3. By Marriage

Simplified procedure after 1–3 years of marriage.

4. By Descent

If parents or grandparents were citizens.

5. Investment

Some countries (e.g. Malta) offer investment or fast-track routes.

Citizenship in EU Countries (Detailed)

🇦🇹 Austria

  • 10 years residence
  • strict financial requirements
  • usually renunciation of previous citizenship

🇧🇪 Belgium

  • 5 years
  • language knowledge
  • integration through work or education

🇧🇬 Bulgaria

  • 5 years
  • Bulgarian language
  • possible origin-based simplifications

🇭🇷 Croatia

  • 8 years
  • Croatian language
  • simplifications for ethnic Croats

🇨🇿 Czech Republic

  • 5–10 years
  • language exam
  • integration test

🇩🇰 Denmark

  • 9 years
  • very difficult exam
  • financial independence

🇪🇪 Estonia

  • 8 years
  • mandatory language
  • constitution exam

🇫🇮 Finland

  • 5 years
  • Finnish or Swedish
  • dual citizenship allowed

🇫🇷 France

  • 5 years (sometimes 2)
  • B1+ French
  • integration interview

🇩🇪 Germany

  • 5–8 years
  • B1 German
  • citizenship test

🇬🇷 Greece

  • 7 years
  • integration exam

🇮🇪 Ireland

  • 5 years
  • relatively simple system

🇮🇹 Italy

  • 10 years
  • B1 Italian
  • very popular

🇱🇻 Latvia

  • 10 years
  • mandatory language
  • constitutional knowledge

🇱🇹 Lithuania

  • 10 years
  • language required
  • often renunciation of other citizenship

🇱🇺 Luxembourg

  • 5–7 years
  • language
  • integration course

🇲🇹 Malta

  • 1–3 years
  • investment or special contribution

🇳🇱 Netherlands

  • 5 years
  • integration exam
  • usually renunciation of previous citizenship

🇵🇱 Poland

  • 3–10 years
  • B1 Polish
  • Polish Card simplifies process

🇵🇹 Portugal

  • 5 years
  • A2 Portuguese
  • very popular

🇪🇸 Spain

  • 10 years
  • integration exam
  • 2 years for some Latin American countries

🇸🇪 Sweden

  • 5 years
  • simple system
  • sometimes no language requirement

Conclusions

Easiest countries:

  • Portugal
  • Sweden
  • Ireland
  • France
  • Germany (after reforms)

Most difficult countries:

  • Austria
  • Denmark
  • Latvia
  • Estonia

Citizenship by Investment in Europe (2026)

What is it?

Citizenship by investment means obtaining a passport through financial contributions such as real estate, business investment, funds, or job creation.

Important: Most EU countries have abolished “fast-track passport” programs.

🇲🇹 Malta

  • €600,000 – €1,000,000
  • 1–3 years
  • strict due diligence

🇹🇷 Turkey (outside EU)

  • $400,000 real estate
  • citizenship in 3–6 months

🇲🇪 Montenegro

  • program closed

🇦🇱 Albania

  • no direct program
  • investment speeds up residence

🇷🇸 Serbia

  • no direct program
  • investment speeds up residence

🇨🇾 Cyprus

  • former program closed
  • only long-term residence

EU countries without citizenship by investment

  • Germany
  • France
  • Italy
  • Spain
  • Portugal
  • Netherlands
  • Sweden
  • Poland

Popular “Golden Visa” programs

  • Portugal
  • Greece
  • Spain (under reform)
Citizenship Acquisition in European Countries (EU & Europe): Complete Guide 2026