Custody for Unmarried Parents in Minnesota

Last reviewed November 3, 2026

Custody for unmarried parents in Minnesota follows a different starting point than custody in a divorce. Until paternity is established or a court decides custody, the mother of a child born outside marriage has sole custody by law. That rule appears in Minn. Stat. § 257.541. Once a court is involved, however, both parents are judged by the same best-interests standards that apply to married parents. This page explains how unmarried parents establish custody, parenting time, and support. It is part of the site’s guide to custody and parenting in Minnesota.

The Mother’s Initial Sole Custody

When a mother was not married to the father at conception or birth, she has sole custody until one of two events occurs (§ 257.541, subd. 1):

• paternity is established under the Parentage Act; or
• custody is determined in a separate proceeding under Minn. Stat. § 518.156.

In practice, this means a father without a court order has no enforceable schedule. The mother may make decisions about the child’s residence and care. She may also decline to follow an informal arrangement, even one the parents have used for years.

Step One: Legal Parentage

A father must first be recognized as the legal parent. There are two routes:

1. Recognition of parentage. Both parents sign and file a sworn form, often at the hospital. See Recognition of Parentage.
2. Court adjudication. A paternity action decides parentage when the parents disagree or paternity is uncertain. See Paternity in Minnesota.

Parentage alone does not create a custody or parenting time order. That requires a court decision.

Step Two: Custody and Parenting Time

The procedure depends on how parentage was established (§ 257.541, subds. 2–3):

How parentage was established	How to seek custody or parenting time
Recognition of parentage	A separate custody action under § 518.156, treated as an initial custody determination
Paternity adjudication	In the paternity case itself, or by later motion

A custody action may be started under chapter 518 without a separate adjudication of parentage, when paternity has been recognized. Such proceedings may not, however, be combined with an order for protection case.

Agreed Cases

When the parents agree on custody, parenting time, and support, and a recognition has been filed, they may submit a joint petition, agreement, and proposed order (§ 518.156, subd. 5). The recognition must be attached, and support must follow the guidelines in chapter 518A. If the requirements are met, the court may approve the order without a hearing (subd. 6).

Temporary Orders

Once a custody case begins, the court may grant temporary custody and parenting time to either parent (§ 257.75, subd. 3(b); § 518.131). This can be important when the parents have separated and the father has little or no contact.

The Same Standards as Married Parents

A custody case after a recognition is decided under the best-interests factors in Minn. Stat. § 518.17 (§ 257.541, subd. 3). The same is true of parenting time, which follows § 518.175. As a result:

• marital status is not a best-interests factor;
• the court presumes joint legal custody is in the child’s best interests when either parent asks for it, absent domestic abuse;
• there is no presumption for or against joint physical custody; and
• each parent is presumed entitled to at least 25 percent of parenting time.

Nevertheless, the child’s actual history matters. The court considers each parent’s past caregiving and the effect of changes to the child’s routine. A father who has been absent may therefore receive a gradually expanding schedule. For details, see Joint Custody and Parenting Time.

Child Support

Unmarried parents owe support on the same terms as divorced parents, under chapter 518A. A recognition of parentage allows a support action to reach back up to two years before it began (§ 257.75, subd. 3(c)). A paternity judgment carries a similar two-year limit on past support (§ 257.66, subd. 4). See Minnesota Child Support.

Relocation Before an Order

Because the mother holds sole custody until an order is entered, a father who expects a move should act promptly. Once an order grants him parenting time, the parent with whom the child lives may not move the child to another state without consent or court approval (§ 518.175, subd. 3). See Moving with a Child.

Practical Steps

1. Confirm parentage is established. Locate the recognition of parentage or the paternity judgment.
2. Do not rely on an informal schedule. Without an order, the arrangement is not enforceable.
3. Complete parent education. In contested cases, both parents must attend; see Parent Education Program.
4. Keep records of involvement. Evidence of caregiving, school contact, and support helps the court apply the best-interests factors.