Citizenship in an EU Member State
Every EU member state sets its own citizenship rules, but the routes fall into four broad categories: naturalization, descent, marriage, and — in a shrinking number of countries — investment. Once you hold citizenship in any EU country, you become an EU citizen, with the right to live, work, and study across the entire bloc.
At a glance
- Naturalization residency range
- 5–10 years — varies by member state
- Common routes
- 4 — naturalization, descent, marriage, investment
- EU citizenship rights
- Live, work, study EU-wide — plus Schengen travel and EU consular protection
- Shorter naturalization examples
- Portugal, Belgium — 5-year residency requirement
- Longer naturalization examples
- Germany, Austria — up to 10-year residency requirement
What naturalization commonly requires
- Minimum legal residence, typically 5 to 10 years depending on the country Required
- Proficiency in the national language, confirmed by exam Required
- Knowledge of the country's history, constitution, and society Required
- Clean criminal record Required
- Proof of stable income Required
- Renunciation of previous citizenship — not required in France, Ireland, Portugal, and other dual-citizenship-friendly states If applicable
The four common routes
Naturalization, based on legal residence — typically 5 to 10 years depending on the country, plus language and civic-knowledge exams.
Descent, available in countries such as Ireland, Italy, Poland, and Greece to people who can document a parent, grandparent, or (in Italy's case) a more distant ancestor who held that country's citizenship.
Marriage, typically requiring 3 to 5 years of residence as the spouse of a citizen, with faster timelines in countries such as France, Spain, and Germany.
Investment, offered by a shrinking number of EU countries. Golden Visa programmes in Portugal and Greece grant residency to investors, which can lead to citizenship after meeting standard requirements. Direct citizenship-by-investment programmes have faced increasing EU scrutiny — Bulgaria suspended its programme in 2022, and Malta's was struck down by the EU's top court in 2025 and is now closed.
What EU citizenship gives you
Freedom of movement — live, work, and study in any EU or EEA country without a visa or work permit.
Visa-free travel to a large number of countries worldwide.
Voting rights in European Parliament elections and local elections wherever you reside in the EU.
Consular protection from any EU member state's embassy when your own country has no diplomatic presence.
Dual citizenship
Some EU countries — including France, Portugal, Italy, Ireland, and Sweden — allow dual citizenship, so you keep your original nationality. Others, including Germany, Austria, and the Netherlands, generally require renouncing it, with some exceptions.
Why work with BIZ TRP
EU citizenship rules genuinely differ by country, and a general overview like this one can't tell you which route applies to your specific nationality, ancestry, or family situation.
- Country-specific guidance. We confirm which EU country's naturalization, descent, marriage, or investment route actually fits your circumstances.
- Investment-route status checks. We track which investment-based programmes are still open and which have closed, so you don't plan around a route that no longer exists.
- Application coordination. We prepare and coordinate your documents with the right country's authorities.
Common questions
Which EU country has the fastest naturalization?
Portugal and Belgium have among the shortest standard residency requirements, at five years — though exact eligibility depends on your personal circumstances.
Can I get EU citizenship through an ancestor?
Several countries, including Ireland, Italy, Poland, and Greece, offer descent-based citizenship if you can document the right ancestral link — the details vary significantly by country.
Is citizenship-by-investment still available in the EU?
Direct programmes have narrowed sharply — Bulgaria suspended its scheme in 2022 and Malta's was closed following a 2025 EU court ruling. Residency-by-investment (Golden Visa) programmes remain available in some countries and can lead to citizenship after meeting standard requirements.
Not sure which EU country's route fits you?
BIZ TRP reviews your nationality, ancestry, and residency options against the EU country that fits your goals, and confirms the current route before you commit to anything.
Request your EU citizenship route review Email us