Step-Parent Parental Responsibility and Kinship Care in England

Step-parents occupy an unusual position in English family law. They live with the child every day, often handle school runs and doctor appointments, and yet they have no automatic legal authority to make decisions about that child. If the birth parent becomes unable to care for the child — through illness, crisis, or absence — the step-parent may find themselves in a kinship care situation with no parental responsibility at all.

Step-Parents Do Not Have Automatic Parental Responsibility

Under the Children Act 1989, parental responsibility belongs to the birth mother automatically, the birth father if married to the mother or named on the birth certificate (for births registered after 1 December 2003), and anyone who has acquired it through a court order or formal agreement. Marrying or entering a civil partnership with a parent does not grant parental responsibility over that parent's child.

This means a step-parent caring for a stepchild while the birth parent is absent has the same legal standing as any other informal kinship carer. They can rely on Section 3(5) of the Children Act 1989 to do what is reasonable to safeguard the child's welfare, but they cannot consent to major medical treatment, make significant educational decisions, or take the child abroad without a PR holder's consent or a court order.

How a Step-Parent Can Acquire Parental Responsibility

There are two routes:

Parental responsibility agreement. Under Section 4A of the Children Act 1989, a step-parent can acquire parental responsibility through a formal agreement with the child's parent who holds PR (or both parents if both hold it). The agreement must be made on the prescribed court form (Form C(PRA2)), signed before an authorised court witness, and sent with the required documents to the Central Family Court to be recorded. It takes effect only once received and recorded there, and does not require a court hearing.

Parental responsibility order. If a PR holder does not agree, the step-parent can apply to the family court for a parental responsibility order. The court considers the degree of attachment between the step-parent and child, the step-parent's reasons for applying, and the potential impact on the child.

In both cases, the step-parent shares parental responsibility with the birth parents — acquiring PR does not remove anyone else's.

Step-Parents Are Close Relatives

Section 105 of the Children Act 1989 defines "relative" narrowly for the purpose of private fostering exemptions. The list of close relatives includes grandparents, brothers and sisters (including half-siblings), aunts and uncles, and step-parents. A step-parent is defined as someone married to, or in a civil partnership with, a birth parent.

This matters because a close relative caring for a child for more than 28 days does not need to notify the local authority under the private fostering rules. A step-parent looking after a stepchild long-term falls within this exemption — the arrangement is a private family arrangement, not a private fostering arrangement.

However, a cohabiting partner who is not married to or in a civil partnership with the birth parent is not a step-parent under this definition and is not a close relative. If they provide accommodation for a child under 16 (or under 18 if disabled) for 28 consecutive days or more, or the arrangement is intended to last that long, they must notify children's social care.

What This Means in Practice

A step-parent who has acquired parental responsibility through either route can consent to routine medical treatment, authorise school activities, and make everyday decisions about the child's life without needing to rely on delegation from the birth parent. They can also apply for a school place, access the child's educational records, and attend meetings as a PR holder in their own right.

A step-parent without PR who is caring for the child informally still has options. Section 576 of the Education Act 1996 treats anyone with care of a child as a "parent" for education purposes, so school admissions and communications are not blocked. GP registration under the GMS1 form does not require proof of parental responsibility. For routine medical consent, a written delegation letter from the birth parent under Section 2(9) provides practical authority.

If you are a step-parent navigating school, GP, and consent decisions for a child in your care, the Kinship School, GP and Consent Guide walks through each step — from delegation letters to what Section 3(5) does and does not cover.

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