In a recent decision by the Court of Appeal Re J (Loss of Parental Responsibility) 2026 the court addressed whether being named on a child’s birth certificate automatically granted parental responsibility to fathers if they’re not the biological father.

What does Re J mean for fathers wanting contact with their child?

The ruling provides significant clarification on the meaning of “father”. It reshapes the legal understanding of who automatically gets parental responsibility and, crucially, when it never existed.

It means that a non-biological father who has been named on a birth certificate does not automatically have parental responsibility for a child. However, the courts can still grant non-biological fathers parental responsibility and child contact arrangements if it’s in the best interests of the child.

What happened in the case of Re J?

The case involved “AJ” who was registered as the child’s father on the birth certificate.  Both parents believed AJ to be the biological father at the time. Later, a DNA test revealed that he was not the child’s biological father. 

AJ had always considered himself to be child’s father and argued that he had formed a parental bond with the child and sought to maintain his parental responsibility.  The legal dispute centred on whether:

1. He had automatically acquired parental responsibility through registration of the birth and being named on the birth certificate; and
2. If so, whether that responsibility could or should be removed.

What is the legal issue around parental responsibility?

The central legal issue was the interpretation of section 4(1) of the Children Act 1989. This grants parental responsibility to an unmarried father if he is registered on the child’s birth certificate.

The question for the Court of Appeal was whether the term “father” includes a man mistakenly registered as the “father”, or is the definition limited strictly to the biological (genetic) father.

Decision of the Court of Appeal on non-biological fathers

The Court of Appeal held that:

• The term “father” bears its ordinary common law meaning being the biological/genetic father.
• A man incorrectly registered as the father does not acquire parental responsibility at all, even if the registration was made in good faith or both parents believed him to be the father at the time.
• Consequently, parental responsibility was never legally held by AJ in the first place.

What can non-biological fathers do if they still want contact with their child?

The case definitively establishes that “father” in the Children Act 1989 means a biological father only. It means that a non-biological father, even one who has been named on a birth certificate, does not have parental responsibility for a child.

There are many families who will assume that being registered on a child’s birth certificate means you are the legal parent and have parental responsibility. However, this case shows that being named as “father” on a birth certificate only gives parental responsibility if you are the biological father of the child.

Most importantly though, this doesn’t stop non-biological father’s from making an application to the court for parental responsibility and contact with the child.  The court can still grant parental responsibility but will consider the welfare of the child and whether any orders should be made to ensure the best interests of the child are upheld.  If you’re a father and you find yourself in this position it is important to get in touch with a family solicitor as soon as possible so they can help get the best outcome for you.

If you’d like to learn more about child contact arrangements get in touch with our family team today on 0800 138 0458 or using the form below.