How Do You Become the Legal Father of Your Child?

12 May 2025

How Do You Become the Legal Father of Your Child?

By Rosemarie Post

The biological parents of a child are those whose DNA the child carries. The legal parents are the child’s recognised family members under the law. In this blog, we briefly explain how a man becomes — or can become — the legal father of a child.

Legal father

The legal father is:

  • The man who is the mother’s husband or registered partner at the time of the child’s birth;
  • The man who acknowledges (recognises) or adopts the child;
  • The man whose paternity is established by a court.

The main consequences of legal fatherhood are:

  • The father is obliged to provide financial maintenance for the child;
  • The father has a right to contact with the child;
  • The child becomes an heir of the father;
  • The child may take the father’s surname.

Automatic legal fatherhood

The man who is married to, or the registered partner of, the mother at the time of the child’s birth automatically becomes the child’s legal father. Even if he is not the biological father, he is recognised as the legal father by law.

Acknowledgement (Recognition)

If there is no marriage or registered partnership, a man must acknowledge the child to become the legal parent. Acknowledgement is a relatively straightforward procedure usually carried out at the local municipality. It can take place before the child’s birth, during the registration of the birth, or afterwards. Certain documents must be submitted, and the registrar will check whether the legal conditions for acknowledgement are met.

One important requirement for acknowledgement is prior written consent from the mother, and, for children aged 12 and over, consent from the child as well. In practice, this consent form is available on the municipality’s website and can be completed and signed at home. Physical presence of the mother at the time of acknowledgement is not required.

Substitute consent for acknowledgement

If the mother (and the child aged 12 or over) does not consent to the acknowledgement, the man can apply to the court for substitute consent. This procedure must be initiated by filing a petition with the court through a lawyer.

To obtain substitute consent, the following conditions must be met:

  • The man seeking acknowledgement is the biological father of the child;
  • He is at least 16 years old;
  • The child does not already have two legal parents.

The court may order a DNA test to determine whether the man is indeed the biological father of the child.

Adoption

It is also possible to become a legal father through adoption. Several requirements apply when adopting a Dutch child, and a formal request must be submitted to the court. Legal representation by a lawyer is mandatory for this procedure.

Judicial establishment of paternity

If a man is the biological father of a child, or if he gave the mother permission for conception, the court can establish his legal paternity. This request can only be made by the mother or the child concerned.

Additional evidence is required for the court to establish paternity. A DNA test may be conducted, which usually provides conclusive evidence, although other forms of proof such as witness testimony can also be sufficient. Legal representation is also mandatory in this procedure.

Special curator

If minor children are involved in a parentage case, the court will appoint a special curator. The special curator acts to protect and represent the interests of the child.

Parental responsibility

Please note: being a legal parent does not automatically grant parental responsibility! Click here for more information about (joint) parental responsibility.

More information

Would you like more information about legal parenthood or do you have another legal question? Please do not hesitate to contact us directly.

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