It is the act by which the father (or mother) assumes that a certain person is his biological child. There is no age limit for recognizing the child.
The acknowledgment of paternity of a child may be made in a notary public office by public deed or will.
It is necessary for the father and/or mother to attend, who must be over 16 years old and must present their personal documents (ID and CPF) and the child’s birth certificate.
The child of legal age cannot be recognized without his consent and the minor can challenge recognition in the four years following the legal age or emancipation (art. 1.614 of the Civil Code).
It is possible to add the father’s surname to the offspring’s name at the time of acknowledgment.
The acknowledgment of paternity is an irrevocable act that does not depend on judicial approval. The deed must be taken to the Civil Registry of Natural Persons where the birth of the offspring was registered for registration.
If the offspring is already married, it will be necessary to record his father’s name on the marriage register, which must be done at the registry office where the marriage was registered.
If the offspring already has children, it will be necessary to record the grandfather’s name on the grandchildren’s birth record, which must be done at the registry office where the grandchildren’s birth is registered.
The price is fixed by law in all registries in this state. To check the values, consult the notary public of your choice.
After the deed is ready, it must be taken to the civil registry office where the child’s birth was registered for registration on the Certificate.
Source: www.cnbsp.org.br