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Introducing a new partner to your children after separation

Updated 14 October 2026 · About 7 minutes to read · England and Wales

There's no fixed rule in law about when to introduce a new partner to your children. What matters most is that the relationship is settled, your children have had time to adjust to the separation, and you take it slowly. Tell your co-parent before the children meet anyone, keep the first meetings short and relaxed, and let your children set the pace.

A new partner can become a real source of support for your children. They're not a replacement for a parent. Coram Family Lives suggests a step-parent builds trust with the children before getting involved in discipline. [2]

When should you introduce a new partner?

Rather than counting months, ask yourself:

• Is this relationship serious and likely to last?
• Have the children had time to get used to living across two homes?
• Are they settled at school and in their routines?
• Could I explain this calmly to my co-parent?

If you're unsure, wait. Meeting someone who then disappears can be another loss for a child who's already been through one.

How children may feel

Cafcass, which represents children in family courts in England, says children often worry that if their parents can stop loving each other, they might stop loving them too, and that this fear can be stronger when a new partner is on the scene. Reassure them, more than once, that you'll always love and look after them. [1]

Reactions vary with age and personality:

• Babies and young children may become clingy or have trouble sleeping during family changes. [1] Coram Family Lives notes that young children can seem to adapt quickly, but feelings may resurface later, for example in the teenage years. [2]
• Older children may get angry or struggle with friends. [1]
• Teenagers are likely to have their own views about how and when it happens, so ask them and listen.

To a child, a new partner starts as a stranger. Don't push for affection, listen even when what they say is negative, and keep regular one-to-one time with each child. [2]

Tell your co-parent first

It's far better for your co-parent to hear it from you than from the children. It also means your children don't feel they're keeping a secret. Keep the message short, factual and focused on the children. You don't need to share personal details or ask permission, but giving notice and listening to any genuine concerns about the children helps.

If talking is hard, a mediator can help you agree how introductions will work. See our guide to mediation and the voucher scheme, or add it to your parenting plan.

Keep first meetings short and low-key

• Tell the children beforehand, in simple words: "I'd like you to meet my friend Sam. We're going to the park together."
• Pick a neutral place with something to do: a park, a café, a walk.
• Keep it to an hour or two, with no sleepovers at first.
• No big displays of affection in front of the children early on.
• Afterwards, ask how they found it, and accept whatever they say.

Then build up gradually. Coram Family Lives also suggests involving children in decisions about living arrangements and future plans. [2]

What is a new partner's role?

A new partner is an extra adult who cares, not a new mum or dad. Agree together how you'll handle behaviour, and let the partner build trust before getting involved in discipline. [2]

Step-parents and parental responsibility

In England and Wales, a step-parent doesn't automatically have parental responsibility, even if they marry the child's parent. [3] They can get it through a parental responsibility agreement (there's a special form for step-parents, signed and witnessed at a family court), or through a court order. The court order application costs £270, and you may get help with court fees on a low income or benefits. [4] Scotland and Northern Ireland have their own rules: see mygov.scot or nidirect.

Moving in together, or moving house

Moving in together is a big step for children. Give plenty of notice, keep their routines and their own space, and tell your co-parent well before it happens.

If moving in means moving house:

• Within the UK, you don't strictly need the other parent's consent under abduction law, but Coram Children's Legal Centre strongly advises getting it first, and a court order may still need to be followed or changed. [6]
• Abroad, you need the consent of everyone with parental responsibility, or the court's permission. [5] [6] Taking a child abroad without permission can be child abduction. [5] Our holidays and handovers guide covers trips abroad too.

Can you check a new partner's background?

You can't run a DBS check on a partner. A basic DBS check is something a person applies for about their own record. [7] But two police schemes in England and Wales exist for exactly this kind of worry:

• Clare's Law (the Domestic Violence Disclosure Scheme) lets you ask the police whether your partner has a history of domestic abuse. A friend, relative or professional can also ask out of concern for someone else, and any information goes to the person best placed to keep them safe. You can apply online, by phone, at a police station or by speaking to an officer. Decisions are normally made within 28 days. [8]
• Sarah's Law (the Child Sex Offender Disclosure Scheme) lets anyone ask the police whether someone with access to a child has a record for child sexual offences. Contact your local police force online, by phone or at a station. Any information goes to whoever is best placed to protect the child, which may not be you. [9]

Scotland and Northern Ireland run their own versions; ask Police Scotland or the PSNI.

When your co-parent has a new partner

This can bring up strong feelings, even if you've moved on. That's normal. Try to:

• let the children talk about the new partner without quizzing them;
• keep your own feelings away from the children, and talk to a friend or counsellor instead;
• stay positive or neutral about the other household; [1] and
• raise genuine concerns with your co-parent calmly, about specific behaviour, not about the person.

For example: "Mia said she was left at home alone on Saturday evening. Can we talk about who looks after the children when you're out?" is easier to answer than an attack on the partner. Our tips on co-parenting communication may help.

If you're worried about a child's safety

• If a child is in immediate danger, call 999.
• If you think a child is at risk, contact your local council's children's social care team, or call the police on 101. You don't need proof. [10]
• For advice, call the NSPCC helpline on 0808 800 5000. [10]
• If you're experiencing domestic abuse, the National Domestic Abuse Helpline is free and open 24 hours on 0808 2000 247. [11] The Men's Advice Line is free on 0808 801 0327, Monday to Friday, 10am to 5pm. [12]

Support for you

• Coram Family Lives: free helpline on 0808 800 2222, Monday to Friday 9am to 9pm and weekends 10am to 3pm. [2]
• Relate: counselling, including family counselling and one-off sessions you can attend alone or with your co-parent. [13]
• Gingerbread: advice, information and local groups for single parents. [14]

More services are listed in our free help directory.

Sources

1. Cafcass, Coping with your child's reactions: cafcass.gov.uk
2. Coram Family Lives, When you become a stepfamily: coramfamilylives.org.uk
3. GOV.UK, Parental rights and responsibilities: who has parental responsibility: gov.uk
4. GOV.UK, Parental rights and responsibilities: apply for parental responsibility: gov.uk
5. GOV.UK, Taking your child abroad if you're separated: gov.uk
6. Coram Children's Legal Centre (Child Law Advice), Travel and relocation: childlawadvice.org.uk
7. GOV.UK, Request a basic DBS check: gov.uk
8. Home Office, Domestic Violence Disclosure Scheme statutory guidance: gov.uk
9. Home Office, Child sex offender disclosure scheme: public guidance: gov.uk
10. GOV.UK, Report child abuse to a local council: gov.uk
11. National Domestic Abuse Helpline (Refuge): nationaldahelpline.org.uk
12. Men's Advice Line (Respect): mensadviceline.org.uk
13. Relate, Learning to co-parent: relate.org.uk
14. Gingerbread: gingerbread.org.uk

All sources checked on 12 October 2026.