Wisconsin Guardianship vs Custody: What Is the Difference?
Two Different Legal Tracks
Wisconsin law offers two main paths for a non-parent who needs legal authority over a child: guardianship under Chapter 48 and custody under Chapter 767. They sound similar, but they come from different statutes, go through different court processes, and give you different kinds of authority.
Choosing the wrong path wastes time and money. Knowing which one applies to your situation — before you file anything — saves both.
Guardianship (Chapter 48, § 48.9795)
A private minor guardianship gives you court-ordered authority over a child's care, custody, and control. It is the most common route for grandparents and relatives who are already raising a child and need formal legal authority.
What it gives you: Full day-to-day decision-making — medical consent, school enrollment, residence, benefits applications. A full guardianship under § 48.9795 lets you handle essentially everything a parent would handle.
Who files it: Any person, including a child age 12 or older, may petition unless a CHIPS, JIPS, or delinquency matter is pending. In a pending matter, only a party to that case or a person approved by the court may petition, consistent with the permanency plan and existing orders. You do not otherwise need to be involved in a family court case.
Where it's filed: Circuit court, handled by the Register in Probate or the juvenile/children's division depending on your county.
What you must prove: For full guardianship, clear and convincing evidence that the parents are unfit, unwilling, or unable — or that compelling circumstances exist. Temporary guardianship has a lower bar (short-term parental inability).
Duration: Until the child turns 18, unless terminated earlier. Temporary guardianship maxes out at 360 days.
Custody (Chapter 767, §§ 767.41 and 767.43)
Third-party custody under Chapter 767 is a family court action. It typically arises within an existing domestic relations case — a divorce, a paternity action, or a family court proceeding already involving the parents.
What it gives you: Legal custody (major decision-making authority over education, healthcare, religion) and/or physical placement (the right to have the child in your home on a court-ordered schedule).
Who files it: A non-parent seeking placement or custody within a Chapter 767 proceeding. Grandparents can also seek visitation under § 767.43.
Where it's filed: Family court division of circuit court.
What you must prove: Wisconsin applies the Barstad v. Frazier standard — you cannot win custody simply by proving you would provide a better home than the parent. You must show the parent is unfit or unable, or that compelling reasons exist, before the court considers what is in the child's best interest.
Duration: Until the child turns 18 or the court modifies the order.
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Key Differences at a Glance
| Guardianship (§ 48.9795) | Custody (Ch. 767) | |
|---|---|---|
| Typical situation | Relative already caring for child, no active family court case | Ongoing divorce/paternity case, or relative petitioning within one |
| Court division | Probate or juvenile | Family court |
| Standing | Any person, subject to pending juvenile-case rules | Party or intervenor in an existing action, or petitioner in an independent custody action |
| Parental rights | Parents retain residual rights (consent to adoption, visitation petitions) | Rights defined by the custody/placement order |
| Child support | Court may order parents to pay | Standard statutory child support |
| Types available | Full, limited, temporary, emergency, standby | Legal custody, physical placement, visitation |
Which One Should You Choose?
Choose guardianship if:
- There is no existing family court case involving the parents
- You are a grandparent, aunt, uncle, or other relative who has been caring for the child
- The parents are absent, incarcerated, in treatment, or have passed away
- You need comprehensive legal authority quickly
Choose third-party custody if:
- The parents are already going through a divorce or paternity action in family court
- You are already involved in or can intervene in that case
- You want physical placement rights formalized within the existing family court framework
One path does not block the other. Some families start with a Chapter 48 guardianship for immediate authority and later address custody arrangements if a family court case develops. Others file for custody within an existing divorce and never need guardianship at all.
What About Power of Attorney?
Neither guardianship nor custody requires a parent's cooperation if you have grounds to petition. But if the parents are cooperative, a simpler option exists: the Power of Attorney Delegating Parental Power (Form GF-223) under Wis. Stat. § 48.979. A parent with legal custody may delegate powers for up to one year; both parents must sign if they share joint legal custody. Court involvement is required if the child is in a CHIPS, JIPS, or delinquency case, is an Indian child, or a non-relative agent's delegation would last longer than one year. The delegation does not end the parents' rights, and a parent with legal custody may revoke it in writing. For a deeper comparison, see our post on Wisconsin guardianship vs power of attorney.
Our Wisconsin Guardianship and Custody Court Process Guide explains every pathway — guardianship types, third-party custody, power of attorney — so you can make the right choice before you spend money on filing fees.
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