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Most parents rarely think about the legal side of custody — until cooperation breaks down. Then the question of joint or sole custody, and who has the right to information and decision-making, can become crucial.

Custody is, simply put, the practical and legal responsibility for a child. It can be joint — exercised by both parents together (two guardians) — or sole, held by one parent alone (one guardian).
A guardian's formal approval matters most for decisions about:
With joint custody, decisions like these — registering a move, applying for a passport — normally require both guardians' approval. With sole custody, the approval of the custodial parent alone is enough.
Joint custody is the most common arrangement in Sweden today, whether or not the parents live together. For it to work, parents need to cooperate reasonably well and make decisions together. They agree on the big questions — housing, school, the child's name and so on — even if they think differently about smaller things.
With joint custody, both guardians can independently attend school meetings, stay in contact with doctors, and keep themselves informed about the child's life. A parent who is not a guardian has no independent right to attend school meetings or receive information about the child from child and adolescent psychiatry or the social services — the sole guardian has to consent first.
A parent with sole custody is responsible for keeping the other parent informed about the child's life, so that time together — for instance every other weekend — works well for the child. But legally, the obligation goes no further than that.
The question of joint or sole custody does not in itself depend on how, or with which parent, the child lives. What matters is whether the parents can solve practical questions about the child together — or not. The child should not have to suffer because the parents cannot cooperate. In that case, it is often better for one parent to carry the responsibility for making decisions in the child's best interest.
Examples of situations where sole custody could be in the child's best interest:
Elisabeth Scholander Family law attorney and mediator, specialized in conflict resolution for families
27 August 2026

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