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EssayOct 13, 2026 · 6 min read

The Final Step: What to expect on Naturalisatiedag

Becoming a Dutch citizen ends with a mandatory ceremony. Learn the meaning of the declaration of solidarity and how to prepare.

A diverse group of smiling people standing in a grand Dutch municipality hall during a formal naturalization ceremony with orange flowers.
Contents · 4 sections
  1. 01The national citizenship day
  2. 02The declaration of solidarity (Verklaring van Verbondenheid)
  3. 03Receiving your passport
  4. 04Bottom line

After years of living in the Netherlands and passing your inburgeringsexamen (integration exam), the final formal stage of becoming a citizen is the ceremony. This guide explains what happens there and how to say the mandatory oath. The event usually takes place after a letter arrives from the Immigratie- en Naturalisatiedienst (IND) confirming that the application is approved. While ceremonies happen year-round, the national naturalisatiedag nederland ceremonie is a specific date set aside to honor new citizens. The process is the same whether someone lives in a small village or a major city. If the wider exam process is still unclear, the KNM overview helps put this final step in context.

The national citizenship day

December 15th marks the official National Citizenship Day across the Netherlands. This date commemorates the signing of the Statuut voor het Koninkrijk der Nederlanden (Charter for the Kingdom of the Netherlands) in 1954. Municipalities must organize a ceremony on this day.

Many also hold smaller events throughout the year to handle the volume of applicants. If naturalization is approved in the autumn, the invitation will often be for this mid-December celebration. Local mayors often give speeches, and the atmosphere is formal yet welcoming. Some smaller municipalities provide coffee and gebak (cake) to celebrate the occasion.

It is the day the local government recognizes a person as a full member of society. No longer just a resident, but a fellow citizen. The ceremony marks the moment a new citizen gains the same rights as someone born in Amsterdam or Utrecht. It closes the period of living here as a migrant and starts life as a Dutch national. The legal position changes, and so does the social one.

The declaration of solidarity (Verklaring van Verbondenheid)

Speaking the Verklaring van Verbondenheid (Declaration of Solidarity) in front of an official is mandatory. The noun Verklaring is worth recognizing because it appears in the formal name of the statement. This is a legal requirement for everyone aged 16 and older who wants to naturalize. By saying these words, a new citizen promises to respect the freedoms and rights that belong to everyone in the Netherlands. The statement also includes a commitment to fulfill the obligations that come with Dutch citizenship.

The text is standardized, so every new citizen across the country says the exact same words. There is a choice between a religious oath and a secular promise. That choice is personal and does not affect the validity of the citizenship.

Many people feel nervous about speaking Dutch in public, but officials are used to helping people through the lines. The ceremony usually involves standing in a room with other new citizens and waiting for a name to be called. It is a solemn moment that marks entry into the Dutch political community. For most people, the speaking part takes about 30 seconds.

Receiving your passport

Citizenship only becomes official after participation in the ceremony. It is not possible to apply for a paspoort (passport) or identiteitskaart (ID card) until the gemeente (municipality) updates the status in the Basisregistratie Personen (BRP). This update usually takes 24 hours. An appointment at the municipal office is usually made for the day after the ceremony or later. Bring a recent passport-sized photo that meets the strict Dutch requirements. The application fee also has to be paid, and it varies slightly by year but usually costs around 80 Euros for an adult. These steps ensure the identity is correctly logged in the national system.

Practice the Dutch text: 'Dat beloof ik' or 'Zo waarlijk helpe mij God almachtig'

The two versions of the declaration are short. If a religious oath is preferred, the phrase is: Zo waarlijk helpe mij God almachtig (So help me God almighty). If a secular promise is preferred, the phrase is: Dat beloof ik (I promise that). The introductory sentence must come first: Ik zweer/beloof dat ik de grondwettelijke orde van het Koninkrijk der Nederlanden, haar vrijheden en rechten respecteer en beloof de plichten die het burgerschap met zich meebrengt getrouw te vervullen (I swear/promise that I respect the constitutional order of the Kingdom of the Netherlands, its freedoms and rights, and promise to faithfully fulfill the duties that citizenship entails). It helps to practice the pronunciation of grondwettelijke orde (constitutional order) beforehand. The registrar or mayor reads the long sentence, and the response is the chosen short phrase. Practice aloud.

Most people find that practicing for 10 minutes makes the whole thing feel more manageable. There is no need to memorize the long paragraph, because the official reads it first. The task is simply to state the final phrase clearly and firmly.

Invite family members to the municipal celebration

The gemeente usually allows a limited number of guests at the event. Check the invitation letter for the specific rules on how many people may come. It is common to invite close family or friends who supported the inburgering (integration) process.

Since this is a formal legal moment, most people wear neat clothing, though there is no strict dress code. Taking photos is generally allowed, but it is better to wait until the official portion of the ceremony has ended before using a phone. The mayor might offer a group photo with all the new citizens at the end. Some gemeenten even give a small gift, like a book about local history or a bunch of flowers.

Larger cities sometimes hold the ceremony in a historic building like a theater or a city hall. In smaller towns, it may take place in the council chambers where local laws are debated. Focus on the moment.

Apply for your first Dutch passport the day after the ceremony

Within five working days, the new document will be ready for pickup. The old Dutch residence permit must be handed in when collecting the new passport. It is also possible to apply for a Dutch driver's license if details need to be updated, though the current one might remain valid for a while.

If travel is planned soon, leave enough time between the ceremony and the departure date to receive the new documents. Once the passport is issued, travel as an EU citizen becomes possible. The document is recognized globally and provides the protection of Dutch embassies abroad. At that point, the person is officially part of the 17 million people who call this country home.

The inburgering process is over.

Bottom line

After the celebration, several administrative shifts occur. The status as a foreign national officially ends, and the right to vote in national elections begins. There is no longer any need to deal with the IND for personal residency rights.

Other institutions remain the same. The Belastingdienst (Tax Authority) and the zorgverzekeraar (health insurer) still matter as usual. If there are children under 18, they might have been included in the application and will also become citizens.

The ceremony is the final hurdle in a long process of integration. It can also be sensible to check status with the Sociale Verzekeringsbank (SVB) when retirement age is getting closer, because Dutch citizenship can affect certain AOW (state pension) rights. The main rule is simple: attendance at the ceremony and speaking the declaration are required to become a citizen.

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