Informed consent with minors in therapy: who signs and what gets shared

The general informed consent guide left three questions open when the client is a minor: the age at which an adolescent can consent on their own, who authorizes treatment when parents are separated or in dispute, and what gets put in writing about what is shared with the adults. The first has no portable answer, and the reason why is worth more than any number you will find online. The other two are solved by documenting. This is documentation and practice management, not legal advice.

The two-part structure: permission and assent

With a client who cannot legally consent, one signature is never the whole job. Standard 3.10(b) of the APA Ethics Code describes four simultaneous obligations: provide an appropriate explanation, seek the individual’s assent, consider their preferences and best interests, and obtain appropriate permission from a legally authorized person, where substitute consent is permitted or required by law. Standard 3.10(d) closes the loop — consent, permission and assent are all documented.

Four steps, not two, and the one most often skipped is the second. Assent is not a courtesy signature at the bottom of the parents’ form: it is a separate conversation, in language the child can actually use, whose outcome you record. A twelve-year-old and a seventeen-year-old need different versions of it, and both need one.

The UN Committee on the Rights of the Child’s General comment No. 20 (2016) — authoritative interpretation of a treaty, not a statute directly enforceable against a private practitioner — adds a distinction most practice conflates: giving medical consent and accessing confidential counselling are two different things. The Committee holds that adolescents’ voluntary and informed consent should be obtained whether or not a parent’s consent is also required, and that access to confidential medical counselling and advice is a separate right that should not be subject to an age limit.

The age question, and why importing an answer is the classic error

Whether an adolescent may consent alone to outpatient mental health treatment is set — or not set — by the law where you practice, and the answers genuinely differ: some jurisdictions fix an age, some carve out specific service types, and some are silent. The failure mode is not ignorance; it is importing a confident number from somewhere else.

A live example. Search this topic in Spanish and the dominant answer is that from age 16 a mature minor consents for themselves. That is correct — in Spain, and with conditions. Article 9.4 of Ley 41/2002 provides that for emancipated minors or those over 16, consent cannot be given by representation — except where the minor’s capacity has been modified judicially or the minor cannot understand the intervention — and it hands consent back to the legal representative where the intervention carries grave risk to life or health, after hearing the minor. It is not Mexican law. We searched the texts in force of the general health law, the children’s-rights law, the federal civil code, the data-protection law and the two relevant official norms, and none of them fixes an age at which an adolescent consents alone to psychotherapy. That is a verified absence in the federal corpus, not proof that no such rule exists anywhere in Mexico: civil, family and much of health law is state jurisdiction there, and we did not search the 32 state codes. The transferable lesson is the method: identify the statute by name and jurisdiction before you rely on the rule, and treat any unattributed age as unsourced.

Two more cautions that travel. That state-jurisdiction problem is not particular to Mexico: wherever civil and family matters are decided below the national level, the national code may not be the one that governs your client. And an ethics code is not a consent statute: standard 3.10(b) tells you to obtain permission where substitute consent is permitted or required by law, which sends you back to your own jurisdiction rather than answering for it.

Documenting who authorized treatment

The most expensive mistake in this area is treating whoever brings the child as the only adult with authority. Day-to-day custody and legal authority over a child’s care are commonly separate things, and a separation or divorce often redistributes the first without extinguishing the second. In Mexico, for example — where family law is state jurisdiction and the federal civil code governs only federal matters, so your client’s state code is the one to check — that code provides that on separation both parents continue to be bound by their duties, that the parent without custody keeps rights of supervision and contact, and that the right of contact can be limited, suspended or lost only by judicial order.

Ask for the document, not the account. Where there is a separation, divorce or dispute, ask to see the agreement or court order that sets out custody and legal authority. You are not adjudicating the conflict; you are verifying who can authorize.
Record what you saw and when. You do not need copies of the family-court file. A dated note of which instrument was shown to you and what it says about authority and custody is enough — and its absence is one of the clinical documentation mistakes that surfaces most often in cases involving minors.
Where both parents hold legal authority, get both authorizations. Before you present this as a legal requirement, check whether it is one where you practice. Getting both anyway is risk management, and it is the difference between a stable frame and a challenge three months in.

If the adults remain in disagreement, that is a matter for the court, not for you. Standard 10.02(b) asks you to anticipate the point at which one role — the child’s therapist — could turn into another — witness for one party — and to clarify, modify, or withdraw from the role accordingly. Say so in the consent document from day one: your function is clinical, and you will not offer custody opinions.

“Consent signed by both parents. Divorce judgment dated 2 March was shown: legal authority retained by both, physical custody with the mother. Recorded; no copy added to the chart.”

What gets shared with the adults, and what does not

This is the heart of the agreement, and it has a limit worth naming out loud rather than hiding: in many jurisdictions the adults holding legal authority have their own statutory right to information about the child’s care. Mexico’s clinical-record norm, for instance, obliges health professionals to give verbal information to the patient and to whoever holds parental authority, guardianship or legal representation, and releases record contents to third parties only on written request by the patient, the guardian, the legal representative, or a physician authorized by one of them — the detail behind that norm is in the Mexican clinical-record standard for psychologists. Your confidentiality agreement with an adolescent is a negotiated clinical practice operating inside that duty, not a legal shield against it. Find out what your own equivalent duty is before you promise anything.

Inside that margin, negotiate and write three categories before the first disclosure — in the same conversation that frames the intake interview:

What the adults always receive: attendance, the frame and fees, treatment goals and plan, and periodic feedback on progress in general terms.
What stays between the adolescent and you by default: session content.
The exceptions, named in advance: serious risk to the client’s life or someone else’s — which calls for an immediate clinical risk assessment under your own protocol and training — mandated reporting of harm to a minor, and a formal requirement from a competent judicial authority. The exact triggers and the body you report to are jurisdiction-specific; write yours.

Standard 4.02 asks that this discussion include, to the extent feasible, both the person who cannot legally consent and their legal representatives, at the outset of the relationship and again as new circumstances warrant. Small qualitative evidence points the same way: a study of eleven patients aged 7 to 15 found that an initial talk often does not suffice, that young patients accept that not everything can stay confidential, and that what they want is clearer advance communication about sensitive topics. What damages the alliance is not the exception; it is the surprise.

“What we talk about here stays here, with three exceptions I want you to know today: serious risk to your life or someone else’s, learning that someone is harming you, and a court formally requiring it. Your parents will always get your attendance, the goals we are working on, and how things are going in general terms; the content of our sessions, no. And if something has to leave this room, I tell you first.”

Questions only your own jurisdiction can answer

Before your minors’ consent form is finished, answer these in writing, from primary sources, for the place you practice:

Is there a statutory age at which a minor consents alone to outpatient mental health treatment, and does it differ by service type?
Does a parent without physical custody retain a right of access to the record?
What exactly triggers mandated reporting, and to which authority?
Who may lawfully access the chart, and on whose written request?
What must a valid consent form contain — some systems specify the fields, and some require witnesses.

Teletherapy with minors

Remote work compresses all of the above. The APA telepsychology guidelines (2024 revision) ask, in Guideline 2, for the minor’s informed assent in addition to parental consent, and list among the consent elements the minor patient’s privacy during the telehealth session. That is the “who else is in the room” problem, and it is solved in writing before the first video call, alongside the rest of the remote frame.

With a minor, consent stops being one piece of paper and becomes three living ones: who authorized and on what basis, what the adolescent assented to, and what was agreed about sharing. gesell.ai keeps them together: consents are signed digitally and archived in a structured chart alongside intake, clinical history, treatment plan and session notes, so the sharing agreement can be re-read exactly as you wrote it on day one. What gets shared and what does not is still your call, made in your session record and your clinical judgment.