Guardianship vs Custody in Illinois: Which Order Does a Relative Need?
Illinois Replaced "Custody" With a Different Legal Framework
If you've been searching for how to get "custody" of a relative's child in Illinois, you'll notice the word barely appears in the current statutes. In 2016, Illinois rewrote its family law to replace the terms "custody" and "visitation" with "allocation of parental responsibilities" and "parenting time" under the Illinois Marriage and Dissolution of Marriage Act (IMDMA, 750 ILCS 5/601.2).
That name change matters, because relatives now have two entirely separate legal paths — guardianship under the Probate Act and allocation of parental responsibilities under the IMDMA — filed in different court divisions, governed by different statutes, and granting different types of authority.
Minor Guardianship Under the Probate Act
Filed in the circuit court's probate division under 755 ILCS 5/11-5, guardianship gives you full authority over the child's person: physical custody, medical decisions, education, and day-to-day care. You can also petition for guardianship of the child's estate if there are assets to manage.
Standing requirement: The court cannot proceed if the child has a living parent whose rights have not been terminated, whose whereabouts are known, and who is willing and able to make and carry out day-to-day care decisions. The petitioner must prove a statutory exception, such as voluntary relinquishment of physical custody, consent in open court or a notarized writing, or inability to give consent or receive notice because of an administrative separation.
Duration: Until the child turns 18, is adopted, or the court ends it.
Parental rights: Suspended but not terminated. A parent can petition to end the guardianship at any time by showing changed circumstances.
Filing fee: Zero since October 2025, statewide (M.R. Order 29741).
Allocation of Parental Responsibilities Under the IMDMA
Filed in the circuit court's domestic relations or family division under 750 ILCS 5/601.2, allocation of parental responsibilities divides decision-making authority (education, health, religion, extracurricular activities) and parenting time among the parties. It's the same framework used in divorces, but nonparents can petition too.
Standing requirement: The child must not be in the physical custody of either parent. This isn't about where the child sleeps on any given night — it's about whether a parent has voluntarily surrendered ongoing caregiving responsibility.
Duration: Indefinite, until the child turns 18 or the court modifies the order.
Parental rights: Modified rather than suspended. The court issues a formal parenting plan that can include parenting time for the biological parents.
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Practical Differences That Matter
| Factor | Probate Guardianship | Allocation (IMDMA) |
|---|---|---|
| Court division | Probate | Domestic relations / family |
| Authority granted | Full custody + care decisions | Decision-making + parenting time |
| Parental rights | Suspended | Modified via parenting plan |
| Ongoing court involvement | Circuit-specific reporting; less frequent hearings | Active court jurisdiction; modifications common |
| Parent visitation | Informal unless disputed | Built into the parenting plan |
| Filing fee | $0 (since Oct 2025) | Standard civil filing fee (fee waiver available) |
Most grandparents and relatives raising a child on their own file for probate guardianship. It's simpler, the fee elimination makes it more accessible, and it grants comprehensive authority in one order.
Allocation under the IMDMA is more common when:
- Multiple parties need formally defined parenting time (e.g., the child spends weekdays with you and weekends with a parent)
- There's an existing family law case (divorce, parentage) where adding you as a party makes sense
- You want ongoing court supervision of a structured visitation arrangement
What About Grandparent Visitation?
Grandparent visitation under 750 ILCS 5/602.9 is a separate, narrower action. It grants visitation time only — not decision-making authority, not residential custody, and not benefit eligibility. If you need legal authority to make decisions for the child, visitation rights aren't enough.
Choosing the Right Path
The deciding factors are usually straightforward: if you need full authority and the parents are out of the picture, guardianship is the direct route. If the family situation calls for shared parenting time with formal court oversight, allocation under the IMDMA gives the court more tools to structure that arrangement.
The Illinois Guardianship and Custody Court Process Guide includes a legal-route decision worksheet that walks through these factors based on your family's specific circumstances.
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