Re J (Loss of Parental Responsibility) , Re Neutral Citation Number [2026] EWCA Civ 344
Court of Appeal (Sir Andrew McFarlane P) — Who is a “father” for parental responsibility?

This is a highly significant authority on the legal meaning of “father” and the limits of acquiring parental responsibility (PR) via birth registration.
Core Issue
The central question:
Can a non-genetic father acquire parental responsibility simply by being named on the birth certificate?
Key Holding
The Court of Appeal held:
❌
No — birth registration alone is not sufficient
✔ Only a
legal “father” can acquire PR via registration
Core Legal Principle
The court reaffirmed:
“Father” in the Children Act 1989 refers to a recognised legal father, not merely a man named on the birth certificate.
Why This Matters
Under s.4 Children Act:
A father acquires PR if:
- married to the mother, OR
- named on the birth certificate (post-2003), OR
- obtains agreement or court order
BUT this case clarifies:
- That route only applies if you are legally a father in law
Court’s Reasoning
A. Birth registration is not determinative
The court rejected the idea that:
- administrative recording = legal status
Instead:
- Registration reflects status — it does not create it.
B. Common law meaning of “father”
The court reaffirmed the traditional position:
- “Father” = biological/genetic father, unless displaced by statute
This excludes:
- social fathers
- stepfathers
- partners without legal status
C. Statutory coherence
Allowing non-genetic men to gain PR via registration would:
- undermine the statutory scheme
- create inconsistency with:
- assisted reproduction provisions
- adoption law
D. Safeguarding legal certainty
The court emphasised:
Parental status must be clear, certain, and legally grounded
Not dependent on:
- informal arrangements
- mistaken registrations
Consequence of the Decision
A man who is:
- not the biological father
- not legally recognised under statute
- Does NOT have parental responsibility, even if:
- named on the birth certificate
- treated as father in practice
Loss (or absence) of PR
The case also engages with:
- removal or absence of PR
If PR was wrongly assumed:
- The court can declare that it never existed
This is distinct from:
- removing PR
vs - confirming it was never validly acquired
Relationship with Existing Law
Aligns with:
- Strict statutory approach to PR
- Distinction between:
- legal parenthood
- social parenting
Reinforces:
- PR is a legal status, not a factual relationship
Practical Implications
A. For families
- Being on a birth certificate is not always enough
- Non-genetic fathers should secure PR via:
- parental responsibility agreement
- court order
B. For practitioners
Must carefully check:
- biological status
- legal parenthood
- statutory routes (e.g. HFEA provisions)
C. For disputes
This case provides a powerful argument where:
- PR is asserted by a non-biological father
- registration is relied upon incorrectly
Conceptual Importance
This case draws a sharp line between:
Concept Meaning
Biological father Genetic parent
Legal father Recognised by law
Social father Parenting role only
Only the legal father can acquire PR via registration.
Key Takeaways
- Birth certificates do not create fatherhood
- PR depends on legal parental status
- Non-genetic fathers must rely on:
- statute
- agreement
- court order
What this means
Re J (2026) confirms:
A man who is not a legal father cannot obtain parental responsibility simply by being named on a birth certificate.
It reinforces a strict, status-based approach to parental responsibility, prioritising:
legal certainty over social reality
For family law advice and family court representation, please contact Stephanie Heijdra public access family barrister via sheijdra[@]winvolvedlegal.co.uk
There is a short video available on this article here
For the full judgment please click here




