Naturalisation Routes to Citizenship in Europe and the Gulf

What is naturalisation?

Naturalisation is a legal process that gives a resident of one country the citizenship of another. The conditions are set by national law and usually combine continuous legal residence, language ability, civic knowledge, good conduct, and a formal application. This platform documents citizenship by naturalisation for 43 countries across Europe and the Persian Gulf. This article describes the route in general terms and points you to the country-specific pages.

No statement in this article should be read as legal advice. National authorities assess each application on its own facts, and many decisions are discretionary. Always confirm your situation on the official website of the country's immigration or citizenship authority.

Residence: the common thread

The first requirement in nearly every naturalisation route is residence. The number of years varies from one country to another, and some states count time differently.

• Romania requires 8 years of legal residence, or 5 if you are married to a Romanian citizen.
• Norway requires 8 of the past 11 years of residence, or 6 of the past 10 if you meet an income requirement.
• Poland has a recognition route that is available after 3 years on a permanent residence permit.
• North Macedonia requires 8 years of continuous lawful residence.
• Moldova sets 10 years as the standard, with 3 years for spouses cohabiting in Moldova.
• Montenegro asks for about 10 years on the ordinary route; the marriage route needs 5 years of residence and at least 3 years of marriage.
• Monaco requires 10 years of residence after age 18, but naturalisation is wholly discretionary.
• Malta requires 12 continuous months before the application, plus an aggregate of 4 further years within the previous 6 years.
• Saudi Arabia nominally allows application after about 10 years of continuous legal residence, with Arabic fluency and a points test, but approval is exceptional and discretionary.

The residence period is not the only condition. You must also hold lawful status for the whole period, and some countries require that you hold permanent residency before applying.

Language and civic knowledge

Most states will ask you to prove that you can handle daily life in the national language. Some add a test on the country's constitution, history, or society.

• Romania asks for B1 Romanian. Under the current rules, the language certificate must be issued by an accredited institution; a general language school certificate is not accepted. Exemptions exist for applicants aged 65 and over.
• Poland requires B2 Polish, with an official certificate.
• Norway requires oral Norwegian at B1 and a passed citizenship or social studies test in Norwegian.
• Montenegro asks for elementary knowledge of Montenegrin.
• North Macedonia requires Macedonian language proficiency.
• Moldova requires Romanian language proficiency and a test on the Constitution.
• Monaco assesses French-language proficiency.
• Saudi Arabia requires Arabic fluency.
• Malta requires adequate Maltese or English for the long-residence naturalisation route.

Discretion and merit: not every route is a checklist

Some citizenship routes are not a simple points table. In several countries the decision rests with a political authority, and meeting the residence and language conditions is not enough.

• Poland has a citizenship by grant of the President. There are no statutory residence, language, or income criteria, and the decision is final and unappealable.
• Malta, following an EU court judgment, repealed its investment-based citizenship scheme and replaced it with a naturalisation route based on merit.
• Monaco grants naturalisation by the Sovereign Prince. Reported grants are fewer than about 20 per year.
• Saudi Arabia treats naturalisation as highly restricted. Approval is exceptional, and a separate route exists by royal decree.

Marriage as a route to citizenship

If you are married to a citizen, the residence period is often shorter. The data on this platform includes several examples:

• Romania: 5 years of legal residence if married to a Romanian citizen.
• Malta: 5 years married to and living with a Maltese citizen, by registration.
• Montenegro: 5 years of residence if married at least 3 years to a Montenegrin citizen.
• Moldova: 3 years of residence for spouses cohabiting in Moldova.

Fees and processing: what you won't find in this article

Application fees are set by national governments. They change without notice and are not uniform across countries. This platform does not charge for citizenship applications, and it does not state any fee as a price for its services. To find the current government fee for a specific country, open the destination page and follow the official link.

Processing times also vary. The documented data for some countries gives a target or an estimate:

• Romania has a decision target of about 5 months from a complete file.
• Poland aims for a decision within about 2 months on the recognition route.
• Norway automatically processes most applications in about 3 months after documents are submitted to the police; manual handling takes longer.
• North Macedonia is reported to take roughly 2 to 5 months.
• Moldova allows up to 1 year for a complete file.
• Malta and Monaco publish no fixed processing time.
• Saudi Arabia has an indeterminate and highly discretionary process.

For any country, the published processing time is an estimate, not a promise. Confirm the current situation on the official website.

Comparing countries side by side

The table below summarises the ordinary naturalisation routes for the countries mentioned in this article. Use it as a starting point, then open the comparison tool to see two countries in detail.

Find your route

Every country has its own citizenship page on this platform. Start with the destinations list, then open the page for the country you are interested in. To compare two countries before you decide, use the comparison tool. If you are still identifying your options, the find page will help you search by your situation.

The naturalisation route is long, but it is documented. Read the country pages carefully, prepare your language tests, and verify the current fee schedule with the national authority before submitting any application.