The risks of informal sperm donation arrangements

Whether or not a sperm donor is a legal parent of a child will depend on how the child is conceived.

The recent case of Re N (Paternity: Unregulated Sperm Donor) [2026] EWHC 878 (Fam) is a significant High Court decision concerning the legal status and rights of a biological father who acted as an unregulated sperm donor. The case reflects increasing judicial concern about the legal and welfare implications arising from informal sperm donation arrangements. The case sits within a growing line of authorities addressing the risks posed by private sperm donation arrangements which take place outside licensed clinics.

Background

The case concerned ‘N’ a child conceived through an informal sperm donation arrangement. The absence of the use of a regulated fertility clinic and the absence of statutory safeguards which this provides created uncertainty over legal parentage, parental responsibility and the donor’s role in the child’s life.

In regulated donation, donors are not legal parents whereas informal arrangements can result in the donor being treated in law as the child’s biological and legal father when this is not the intention.

In this case a dispute arose when the donor sought formal legal recognition as the child’s father and involvement in the child’s life.

The issues which the court had to determine were:

• Whether to make a declaration of parentage. See dealing with the parentage of a child;
• Whether the donor should acquire parental responsibility
• What level of contact (if any) should be permitted between the donor and the child; and
• How to apply the welfare principle that the child’s welfare is the court’s paramount consideration.

The Court’s approach

As in all children cases, the court applied the welfare principle and treated the child’s welfare as the court’s paramount consideration. The judge emphasised that biological connection alone does not entitle a father to involvement in the child’s life. In making that decision the court must assess the father’s motives, his ability to meet the child’s need and the impact of his involvement of the child and their primary carer.

The court also considered whether to formally recognise the donor as the child’s father through a declaration of parentage. The court accepted that a biological link can justify a declaration, however, legal recognition does not automatically confer parental rights. This distinction between legal status and rights is central to modern family law. 

Another key issue was whether the donor should be granted parental responsibility for N. The court assessed a number of factors including commitment to N, attachment and motivation for applying. The court was cautious about granting parental responsibility where the donor’s involvement risked undermining the primary carer, creating instability and serving the donor’s interest rather than the child’s interest.

The court also examined whether direct or indirect contact should be ordered. The court recognised that contact is a not a right of the parent but a matter of the child’s welfare and that in some cases only indirect or even no contact may be appropriate. The court balanced the child’s potential interest in knowing their origins and the need for stability and protection from conflict.

Decision 

The court followed a now established pattern in unregulated donor cases in that a declaration of parentage may be granted recognising the biological reality, parental responsibility is often refused where the donor’s involvement would not promote the child’s welfare and that contact is tightly controlled, sometimes limited to indirect forms such as letters.

The case confirms that being a biological father does not equate to legal parenting rights and underscores the potential legal uncertainty created by private unregulated sperm donation which can result in unexpected legal parenthood, litigation over contact and parental responsibility and potential harm to the child and the primary carers. Courts have recognised risks of manipulation and instability in informal arrangements and this case has added to growing pressure for the need for greater awareness of the risks of unregulated donation and for law reform or clearer guidance in this area.