Idaho Guardianship of Minors

Part of my Idaho Guardianship & Conservatorship Overview.

By Ronald W. Brilliant, Attorney at Law · Licensed in Idaho, Nevada & California · Last reviewed: September 2026 against the Idaho Code as posted by the Idaho Legislature (July 1, 2026)

In This TopicIdaho Guardianship & ConservatorshipTopic 1 of 8: Guardianship of Minors

A guardian of a minor has the powers and responsibilities of a parent, with some exceptions (Idaho Code § 15-5-209). A “minor” is a person under eighteen (18) years of age (Idaho Code § 15-1-201(29)), and a “minor ward” is a minor for whom a guardian has been appointed solely because of minority (Idaho Code § 15-5-101(d)).

A person becomes a guardian of a minor by accepting an appointment made in a parent’s will (a “testamentary appointment”) or by court appointment (Idaho Code § 15-5-201). The guardianship continues until it is ended, no matter where the guardian and child live from time to time (§ 15-5-201).

Naming a Guardian in a Parent’s Will

A parent may appoint a guardian for an unmarried minor by will, and may name one or more alternates in order of priority (Idaho Code § 15-5-202). A parent whose parental rights have been terminated loses the right to appoint a guardian for that child (§ 15-5-202).

The appointment takes effect when the guardian files an acceptance in the court where the will is probated, if at the parent’s death no parent was alive who had a right to appoint a guardian (§ 15-5-202). Immediately upon accepting, the guardian must give written notice to the minor and to the person with custody of the minor, or if none, the person with the minor’s care, or if none, the minor’s nearest adult relation (§ 15-5-202).

The next alternate becomes the appointed guardian if the named guardian does not accept within thirty (30) days after the will is probated, declines before the 30 days run, has died, or stops acting after accepting (§ 15-5-202).

A minor age fourteen (14) or older can block or end a will-based appointment by filing a written objection with the court where the will is probated, either before acceptance or within thirty (30) days after notice of acceptance (Idaho Code § 15-5-203). The next alternate may then accept, subject to the same right to object, and the court may still appoint the named person or any other suitable person in a proper proceeding (§ 15-5-203).

When the Court May Appoint a Guardian

The court may appoint a guardian for an unmarried minor if all parental rights of custody have been terminated by a prior court order, or upon a finding that the child has been neglected, abused, or abandoned or that the parents are unable to provide a stable home environment (Idaho Code § 15-5-204(1)).

“Abandoned” means the parent failed to maintain a normal parental relationship with the child, including, but not limited to, reasonable support or regular contact (§ 15-5-204(1)). Failing to do so without just cause for six (6) months is “prima facie evidence” of abandonment (§ 15-5-204(1)).

Except in certain military service situations, the court must consider the child’s best interests as the primary factor in deciding whether to appoint a guardian and whom to appoint (§ 15-5-204(1)). A potential guardian’s advanced age or disability may not, in and of itself, be used to judge suitability if the person is otherwise suitable (§ 15-5-204(1)).

A guardian named in a will, whose appointment was not prevented or nullified by the minor’s objection, has priority over a court-appointed guardian, but the court may proceed if the named guardian fails to accept within thirty (30) days after notice of the guardianship proceeding (§ 15-5-204(1)).

A parent’s extended absence due to active duty in or deployment with the United States armed forces does not by itself count as neglect, abuse, abandonment, or failure to provide a stable home environment (§ 15-5-204(2)). A guardianship granted at the request of such a parent, or at the request of or required by the armed forces, must be terminated immediately when the original circumstances end or the parent files a termination report stating the intent to resume all care, custody, and control of the minor (§ 15-5-204(3)).

Who May Be Appointed

The court may appoint any person whose appointment would be in the minor’s best interests (Idaho Code § 15-5-206). If a minor age fourteen (14) or older nominates someone, the court must appoint that person unless it finds the appointment contrary to the minor’s best interests (§ 15-5-206).

The court may appoint no more than two (2) co-guardians if it finds that this will best serve the minor’s interests and that they will work together cooperatively (Idaho Code § 15-5-207(3)(a)). The order and letters must state whether they may act independently, must act jointly in specified matters, or must act jointly (§ 15-5-207(3)(b)).

De Facto Custodians

A “de facto custodian” is a person appointed as such under Idaho Code § 32-1705, or a person who has been the primary caregiver for, and primary financial supporter of, a child who lived with the person before the petition was filed (Idaho Code § 15-5-213(1)). The child must have lived there six (6) months or more if under three (3) years old, or one (1) year or more if age three (3) or older (§ 15-5-213(1)).

If the court finds by clear and convincing evidence that a person is a de facto custodian and that recognition is in the child’s best interests, the person receives the same standing as each parent in the guardianship case (§ 15-5-213(2)).

Starting a Court Case

A petition may be filed by any relative of the minor, the minor if fourteen (14) or older, a de facto custodian, or any person interested in the minor’s welfare (Idaho Code § 15-5-207(1)). The case is filed where the minor lives or is present (Idaho Code § 15-5-205).

The petitioner must give notice of the hearing to the minor if fourteen (14) or older, the person who had principal care and custody of the minor during the sixty (60) days before the petition, any de facto custodian, and any living parent (§ 15-5-207(2)). In limited circumstances involving a father, the court may waive notice to him (§ 15-5-207(2)(d)).

Notice is given as provided in Idaho Code § 15-1-401 (§ 15-5-207(2)). That section generally calls for mailing or personally delivering a copy at least fourteen (14) days before the hearing (Idaho Code § 15-1-401(a)).

The court must appoint an attorney for the minor if the minor is mature enough to direct the attorney, and otherwise must appoint a guardian ad litem (Idaho Code § 15-5-207(7)). The court may decline if it finds in writing that the appointment is not necessary to serve the minor’s best interests, or if the Idaho department of health and welfare has legal custody of the child (§ 15-5-207(7)).

After a hearing, the court must make the appointment if a qualified person seeks it, venue is proper, notices were given, the conditions of § 15-5-204 are met, and the appointment will serve the minor’s welfare and best interests (§ 15-5-207(4)). Otherwise, the court may dismiss the case or make any other disposition that will best serve the minor’s interests (§ 15-5-207(4)).

Temporary Guardians of Minors

Rule	Before a guardian is appointed	While a guardian is serving
What the court must find	By a preponderance of evidence: a petition is pending; appointment is necessary to protect the minor’s health, safety or welfare until the hearing; and no other person appears able, authorized and willing to act (§ 15-5-207(5)(a))	Substantial evidence the guardian is not performing the guardian’s duties, and appointment is necessary to protect the minor’s health, safety or welfare (§ 15-5-207(6)(a))
Without notice or hearing	If the minor is in the physical custody of the petitioner or proposed temporary guardian and a sworn statement shows the minor may be immediately and substantially harmed first (§ 15-5-207(5)(b))	If a sworn statement shows the minor may be immediately and substantially harmed first (§ 15-5-207(6)(b))
Notice of appointment	Within seventy-two (72) hours (§ 15-5-207(5)(c))	Within seventy-two (72) hours (§ 15-5-207(6)(c))
Hearing if requested	Within fourteen (14) days after request (§ 15-5-207(5)(c))	Within fourteen (14) days after request (§ 15-5-207(6)(c))
Length	Up to six (6) months, with one good-cause extension of up to six (6) months (§ 15-5-207(5)(d))	Up to six (6) months unless extended for good cause; never more than twelve (12) months total (§ 15-5-207(6)(d))

In all cases, a hearing on the temporary guardianship or on the guardianship petition itself must be held within ninety (90) days of the filing of any petition for guardianship of a minor (§ 15-5-207(5)(c)). A temporary guardian appointed before a guardian is appointed has powers limited to what is necessary to protect the minor’s immediate health, safety or welfare until a hearing, and must include care and custody (§ 15-5-207(5)(d)). While a temporary guardian has authority, a previously appointed guardian’s authority is suspended (§ 15-5-207(6)(d)).

What a Guardian of a Minor Does

A guardian of a minor has the powers and responsibilities of a parent, except that the guardian is not legally obligated to support the child from the guardian’s own funds and is not liable to third persons by reason of the parental relationship for the child’s acts (Idaho Code § 15-5-209). The guardian may authorize medical or other professional care and may consent to the ward’s marriage or adoption (§ 15-5-209(3)). The guardian must report to the court at least annually, under oath or affirmation (§ 15-5-209(4)).

A guardian must start protective proceedings if necessary to protect the child’s property (§ 15-5-209(1)). See Idaho Conservatorship and Idaho Guardian Duties and Powers.

Short-Term Care Without a Court Case

A parent may use a properly executed power of attorney to delegate powers over a minor’s care, custody, or property, including medical and educational care, for up to six (6) months, or twelve (12) months for military personnel serving outside the United States (Idaho Code § 15-5-104). The power to consent to marriage or adoption cannot be delegated (§ 15-5-104).

A delegation to the minor’s grandparent, sibling, or a sibling of either parent lasts until the expiration stated in the document, or three (3) years if none is stated, unless revoked earlier in a writing delivered to that relative (§ 15-5-104). It need not be notarized or recorded (§ 15-5-104).

Changing or Ending the Guardianship

A guardian’s authority ends upon the guardian’s death, resignation, or removal, termination of the guardianship, or the minor’s death, adoption, marriage, or reaching majority (Idaho Code § 15-5-210). The guardian remains liable for prior acts and must still account for the ward’s funds and assets (§ 15-5-210).

Any person interested in the ward’s welfare, or the ward if fourteen (14) or older, may petition to remove the guardian or to modify or end the guardianship as being in the ward’s best interest (Idaho Code § 15-5-212(1)). After notice and hearing on a petition for removal or resignation, the court may terminate the guardianship and make any further appropriate order (§ 15-5-212(2)).

Special rules apply when the minor is under a court’s jurisdiction under the child protective act, or the guardianship arose from a permanency plan in such a case (Idaho Code § 15-5-212A). The department of health and welfare must receive notice and may intervene, and a person seeking to terminate, modify, or remove the guardian must prove by clear and convincing evidence a substantial and material change in the circumstances of the parent or minor since the guardianship began, and that the requested change is in the minor’s best interests (§ 15-5-212A(2), (3), (5), (6)).

How I Can Help

I help grandparents, relatives, and other caregivers understand whether a guardianship fits their situation, prepare and file the petition, give the required notices, and present the case at the hearing. I also help parents name a guardian in a will, and I represent people asking to change or end a guardianship. Request a consultation to discuss your situation.

This page provides general information about Idaho guardianship, conservatorship and powers of attorney, based on the Idaho Code, and is not legal advice. Court rules and case law also affect these matters. Every situation is different; consult an attorney about yours. Reading this page does not create an attorney-client relationship.