Visas & Immigration

Applying for Belgian citizenship

Ready to take on a new nationality? Learn all there is to know about Belgian citizenship, the conditions you’ll have to meet, and how you can apply.

Belgian citizenship

Updated 9-5-2024

Belgium might be a small country, but the benefits of listing it as your official home are huge. Belgian citizenship allows you access to social welfare, vote, and move freely within the European Union (EU).

The process of naturalization isn’t all that difficult. Read on to discover which path you can take to become an official Belgian national:


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Citizenship in Belgium

What Belgium lacks in size, it makes up for in culture and people. The country is bursting with festivals, museums, and architecture. It is also famous worldwide for its culinary delights of waffles, chocolate, and beer.

Stereotypical Belgian argitecture as seen at Huidenvettersplein 10, Bruges, Belgium.
Bruges (Photo: Despina Galani/Unsplash)

It has a booming job market, incredible social security, and a pleasant lifestyle. According to the OECD Better Life Index (2022), Belgians, on average, give their life satisfaction a score of 6.8.

The public Prosecutor’s Office (French: tribunal de première instance, Dutch: rechtbank van de eerste aanleg) handles all citizenship requests.

Each year, the immigration authority grants between 30,000 and 40,000 new citizenships. In 2022, Belgium had around 11,500,000 inhabitants, 13% of whom were born elsewhere.

If you’re looking to immigrate to Belgium, you’re likely familiar with the Code of Belgian nationality (French: code de la nationalité belge – CNB, Dutch: wetboek van de belgische nationaliteit – WBN). This book of law dictates all citizenship matters in Belgium.

The country has a mix of jus sanguinis (citizenship by descent), jus soli (citizenship by birth), and the naturalization of international residents. The main paths to becoming a Belgian citizen are:

  • Having Belgian parents
  • Adoption by a Belgian national
  • Marriage to a Belgian person
  • Declaration of your nationality after residency
  • Naturalization (which is different from citizenship through residence)

Belgian citizenship by descent

Belgium adheres to jus sanguinis (citizenship by descent). That means that children with at least one Belgian parent will automatically inherit Belgian nationality. This also applies to children who were or had:

  • Born out of wedlock, and the first parent to acknowledge them is a Belgian citizen
  • Born outside of the country to Belgian parents
  • Born outside of Belgium to parents with multiple nationalities (including the Belgian one) and weren’t given another nationality before they turned 18
  • Parents who were born in Belgian Congo before 30 June 1960
  • Parents who were born in Ruanda-Urundi (later Ruanda-Burundi) before 1 July 1962

Adoption by a Belgian national

When a child is adopted by at least one Belgian parent, they will also get Belgian citizenship.

Mother and baby standing at a balcony. The baby is holding a rainbow flag, while their mother looks at them adoringly.
Photo: Margaux Bellott/Unsplash

When someone is born in Belgium but adopted by non-Belgian nationals, they can still get citizenship if the adoptive parents have lived in Belgium for the past 10 years. For this to apply, at least one of the parents must have a residence permit.

The other way around is also possible. If a foreign national adopt a child with Belgian nationality, this parent can also apply for citizenship. To qualify, the parent must meet the following conditions:

  • They have legally resided in Belgium for an uninterrupted period of at least five years
  • They can prove that they speak at least one of the three official national languages (French, Dutch, or German)
  • They can show that they are socially integrated by having either:
    • Earned a degree or certificate
    • Taken at least 400 hours of professional training and worked as a paid employee for at least 234 days, or worked as a self-employed person and made at least three quarterly social security contributions
    • Taken an integration course

Applying for citizenship by descent or adoption

Belgian parents who’ve had a baby do not need to apply for citizenship for their child. The baby will automatically get Belgian nationality when they are registered with the Civil Registrar (French: service de l’état civil de la commune, Dutch: dienst burgerlijke stand) at the local town hall (French: mairie, Dutch: gemeentehuis).

If the family lives abroad, the parents can register their child with the local Belgian embassy or consulate. They will also need to submit a declaration of attribution of Belgian nationality (French: declaration d’attribution de la nationalité, Dutch: nationaliteitsverklaring).

When adopting a child, parents must submit a declaration of nationality with their local municipal office in Wallonia, Flanders, or Brussels. They must do so before the child turns five or within five years of the adoption.

If the application is submitted on behalf of a foreign parent of a Belgian child (so the other way around), it is considered a declaration of citizenship through residency. This is explained in more detail below.

Declarations of nationality are free for children, but costs might increase due to additional charges for translation and legalization of documents (i.e., apostille).

Processing times and any additional fees can differ per municipality.

Citizenship by birth in Belgium

In Belgium, parental birthright supersedes the right of birthplace. In other words, children will only become citizens when at least one of their parents is Belgian. If neither of the parents has Belgian nationality, their child does not receive automatic citizenship unless they would otherwise be considered stateless.

Little baby getting back massage.
Photo: Khoa Pham/Unsplash

However, this does not mean citizenship by birth is impossible in Belgium. To get Belgian nationality, children must meet the following requirements:

  • You were born in Belgium, and this has been your primary country of residence since
  • Your (adoptive) parents are foreign nationals who have lived in Belgium for at least 10 years preceding your birth or adoption
  • At least one of your parents holds a permanent residence permit

How to get citizenship by birth or adoption

Foreign (adoptive) parents can request Belgian nationality for their children by submitting a declaration of nationality at the local municipal office in Wallonia, Flanders, or Brussels.

If you are older than 18, you can independently request a declaration of Belgian citizenship. However, you must meet these additional requirements:

  • You have a permanent residence permit
  • You can show that you speak at least one of the three national languages
  • You are socially and economically integrated into society (e.g., you have worked and lived in Belgium for the past five years)

Declarations of nationality are free for children but cost €150 for adults. Of course, charges for translation and legalization of the documents may add to the expenses. Processing times and any additional charges may vary between municipalities.

Citizenship by residence in Belgium

The most common way for internationals and immigrants to get Belgian citizenship is by residence. Anyone who has lived in the country for an uninterrupted period of at least five years can submit a declaration of citizenship.

Residents sitting along the canal in Ghent, Belgium.
Ghent (Photo: Giannis Skarlatos/Unsplash)

There are several other requirements that you’ll have to meet. These include:

  • Being at least 18 years of age
  • Speaking at least one of the three national languages, which you can prove by demonstrating your social integration
  • Being integrated into society by having either:
    • earned a degree or certificate
    • done at least 400 hours of professional training
    • taken an integration course
    • worked in Belgium uninterrupted for the past five years
  • Being economically integrated by having worked as either:
    • a paid worker or a public servant for at least 468 days during the last five years
    • a self-employed person who has made social security contributions for at least six quarters of the last five years
  • Proving that you are unable to work due to a disability or chronic illness or because you have reached pensionable age (65 in 2022)

If you cannot meet these requirements, you can also apply for citizenship after you’ve legally resided in Belgium for the past 10 years. In that case, you will need to demonstrate that:

  • You have knowledge of at least one of the three national languages
  • You are integrated into sociocultural or economic life

Citizenship by marriage to a Belgian national

Belgium does not automatically grant citizenship to people who get married to a Belgian citizen. Instead, they can become national by following the above residence procedure. The same conditions apply with one additional requirement: you’ll need to have cohabitated with your partner in Belgium for at least three years.

Applying for citizenship by residence

You can apply by submitting a declaration at your local Belgian municipal office in Wallonia, Flanders, or Brussels.

Would-be-citizen walking towards the steps inside the Palace of Justice, Brussels, Belgium.
Inside the Palace of Justice, Brussels (Photo: Dan Asaki/Unsplash)

You’ll need to provide several documents, including:

  • Your birth certificate, translated and legalized if necessary
  • Proof of your residence in Belgium for an uninterrupted period of at least five years
  • Proof of language proficiency through social integration
  • Proof of social and economic integration
  • Proof of payment of the application fee of €150

Other than the application costs, there might be additional fees for translation and legalization. For the translation of your documents, you can also use a reputable translation agency such as lingoking.

Once the file is complete, the municipality will forward your application to the public prosecutor’s office. Note that you will receive a receipt once the application is submitted. The prosecutor will consult the Immigration Office (French: office des étrangers, Dutch: dienst vreemdelingenzaken) and the National Security Authority – NSA (French: l’autorité nationale de sécurité – ANS, Dutch: nationale veiligheidsoverheid – NVO) before they make a final decision.

If you did not get a receipt, the prosecutor did not receive your file. Your application will be rejected automatically, and the municipality will inform you immediately.

The prosecutor has four months (from the date of receiving the application) to raise any objections. If there aren’t any, you’ll receive confirmation of approval. If they oppose you becoming a Belgian citizen, they will send you and the municipality a registered letter. After this, you can file an appeal, as explained below.

Belgian citizenship by naturalization

It’s rare for a foreign national to become a citizen through naturalization stricto sensu. This means naturalization in the strictest sense, which is considered a favor or concession.

You can only request citizenship by naturalization when you meet the following requirements:

  • You are at least 18
  • You have legally resided in Belgium for at least three months at the time of the application
  • You can prove exceptional merit in either scientific, sports, or sociocultural-related fields
  • You can demonstrate why you can’t get Belgian citizenship with a declaration of nationality after five years of residency

You can also apply for citizenship by naturalization when you are a stateless person. In that case, the following conditions apply:

How to get citizenship through naturalization

You can submit an application with your local municipal office in Wallonia, Flanders, Brussels, or the Belgian House of Representatives (French: chambre des représentants, Dutch: kamer van volksvertegenwoordigers).

Flags hanging outside of the Belgian Parliament
Belgian and European Union flags outside the Palais de la Nation in Brussels

Once your file is complete, and you have paid the €150 registration fee, the House of Representatives will consult the public prosecutor’s office. Following their advice, the House can decide to reject, further examine, or grant your citizenship.

Next, your case will be brought to the Naturalization Committee of the House (French: commission des naturalisations de la chambre, Dutch: commissie voor de naturalisaties van de kamer). After they’ve approved it, they will send your application to the King for formal ratification.

Because it entails an official decree, your name and application will be published in the Belgian Official Gazette (French: moniteur belge, Dutch: belgisch staatsblad). The authorities will inform you of the decision in writing, and your Belgian citizenship will be official on the day of publication.

The overall duration of the naturalization procedure can take at least two years. And because of the high number of requests, it can take even longer.

Citizenship for refugees

Refugees who are 18 or older can also apply for Belgian citizenship. You can do so via residency or naturalization. Whichever route you take has different requirements.

Wall art welcoming refugees
Photo: Matteo Paganelli/Unsplash

If you encounter difficulties gathering the required documents, you can contact the Office of the Commissioner General for Refugees and Stateless Persons – CGRS (French: commissariat général aux réfugiés et aux apatrides – CGRA, Dutch: commissariaat-generaal voor de vluchtelingen en de staatlozen – CGVS).

Once you receive Belgian citizenship, you’ll automatically lose your refugee status.

Citizenship test in Belgium

Currently (2022), the application procedure does not include a citizenship test.

However, some political parties do call for mandatory testing. It is, therefore, possible that a citizenship test will be required in the future.

Passports in Belgium

After receiving your Belgian citizenship, you can apply for an ID card or a passport at your local municipal office. If you’re living abroad, you can request an ID at your local Belgian embassy or consulate. The waiting period can take up to 10 working days.

Adult passports are valid for seven years, and children’s passports for five years. Currently, the application costs €65 for adults and €35 for children, although additional costs might be involved.

You can also choose for a more expensive fast-track procedure, wherein you can get your passport within just one day.

Dual nationality in Belgium

Belgian nationals are allowed to have dual (or even multiple) citizenship. That means you’ll not be required to give up your original nationality. However, this also depends on your country of origin.

Some countries, like the Netherlands, do not recognize dual nationalities. You can check with the embassy or consulate of your country of origin to learn more about the rules and procedures regarding dual citizenship.

Losing your Belgian citizenship

Dual nationality has been possible since 2008. If you’ve voluntarily obtained another nationality before this date, you would have lost your Belgian nationality. In particularly:

Old man in uniform holding a banner in Antwerp. He is part of the British 49th West-Riding Infantry Division Polar Bear Association.
The British 49th West-Riding Infantry Division Polar Bear Association in Antwerp (Photo: Zoë Gayah Jonker/Unsplash)

You can also lose your nationality when:

  • You were born abroad after 1 January 1967, plus:
    • You have one or more other nationalities
    • Your primary country of residence between the ages of 18 and 28 was not Belgium
    • You did not work abroad for the Belgian government or a company or association
    • You did not make a declaration to keep your nationality (French: déclaration de conservation, Dutch: behoudsverklaring) when you were between 18 and 28
    • You did not voluntarily apply for Belgian citizenship after you turned 18
  • You are younger than 18, and one of your parents loses their Belgian nationality (see above). This can only be circumvented if your other parent is a Belgian national or if losing Belgian citizenship would render you stateless.
  • You were adopted by a foreign national and acquired a different nationality before you turned 18
  • You were born elsewhere and seriously failed in your obligations as a Belgian citizen
  • You were born abroad and received Belgian citizenship through fraud or corruption or gave falsified declarations or documents

Renouncing your citizenship

When you have dual nationality and voluntarily want to give up your Belgian citizenship, you can do so after you turn 18. You’ll need to sign a declaration of renunciation at your local municipality in Belgium or the Belgian embassy or consulate when you live abroad.

How to recover your Belgian citizenship

People who have lost their Belgian nationality can regain it with a declaration of recovery. If you live abroad, you can file this declaration at your local municipality in Belgium or at the Belgian embassy or consulate

Unrecognizable pedestrian walking on the city square in in Brussels on a dark and cloudy evening.
Brussels (Photo: Sinitta Leunen/Pexels)

To qualify for recovery of citizenship, you must be older than 18 and have lived in Belgium for at least one year before the declaration. If a judicial authority has withdrawn your Belgian nationality, you cannot regain it using this declaration. Instead, you’ll have to wait at least five years and take the route of citizenship by residence.

For more information about recovering your Belgian citizenship, you can check your municipality’s website in Wallonia, Flanders, or Brussels.

Citizenship appeals and complaints

If the public prosecutor rejects your application for citizenship by residence, you can file an appeal with the family court (French: tribunal de la famille, Dutch: familierechtbank). This needs to be submitted within 15 days of the decision.

It’s best to consult a specialist lawyer, as it is sometimes easier to make a new nationality claim instead of an appeal.

If your application for citizenship through naturalization was rejected, you have one month to file an appeal with the Naturalizations Committee of the House of Representatives. This needs to be done by letter (does not need to be a registered letter).

If your appeal is rejected again, you are allowed to submit a new application. Keep in mind that the other paths to citizenship might be shorter and easier than the naturalization route.

Useful resources