Your Child Is Turning 18. Here’s Why That’s an Estate Planning Moment.

Most parents spend the months before their child’s 18th birthday thinking about graduation parties, dorm shopping, and whether their kid is really ready to live on their own. What almost no one is thinking about is what happens legally the moment that birthday arrives. When your child turns 18, a switch flips. Overnight, they become a legal adult in the eyes of the state — and you lose access to almost everything.

That includes their medical records, their bank accounts, and any decisions that need to be made if something goes wrong while they are two states away at school.

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The Legal Shift Most Parents Do Not See Coming

The day your child turns 18, the law stops treating you as their decision-maker. It does not matter that you pay their tuition, carry them on your health insurance, or would be on the first flight to the hospital if something happened. Without written authorization, you have no legal right to access their medical records, speak with their doctors, review their bank accounts, or make any decision on their behalf.

Two federal laws govern most of this. HIPAA, the Health Insurance Portability and Accountability Act, restricts medical providers from sharing any health information about your child once they turn 18, unless your child has explicitly authorized it in writing. FERPA, the Family Educational Rights and Privacy Act, transfers control of academic records from parents to the student the moment they turn 18 or begin attending a postsecondary institution. Grades, tuition billing, disciplinary records — none of it is accessible to you without your child’s written consent.

Many universities will accept tuition payments from a parent but will not send billing statements or account information to anyone other than the enrolled student. The same institution will take your check and then decline to confirm your child’s enrollment status without authorization.

This is not a loophole or an oversight. It is the law, and it applies uniformly whether your child is thriving or in crisis.

What Can Go Wrong Without These Documents in Place

The scenarios that make this real are not dramatic. They are ordinary emergencies made harder by missing paperwork.

A college freshman slips on ice and is unconscious when she arrives at the hospital. Her parents are three hours away. Without a healthcare power of attorney and HIPAA authorization already on file, the hospital cannot legally discuss her condition, share test results, or include her parents in any treatment decisions. Staff are not being difficult. They are following federal law.

A junior studying abroad has a medical emergency. His parents are trying to coordinate care and insurance coverage from the United States. Without authorization documents, every conversation hits a wall. The student cannot speak for himself. His parents have no legal standing to speak for him either.

A sophomore is hospitalized for a mental health crisis. Her mother, who is listed on the health insurance policy as the primary subscriber, calls the treating facility. Without written authorization from her daughter, the provider cannot confirm that the student is even a patient there.

These are not worst-case hypotheticals. They are the kinds of situations that arrive without warning and resolve far more cleanly when the documents are already in place.

The Four Documents Every 18-Year-Old Needs

This is not a lengthy or complicated process. For most young adults without significant assets, the core document package takes a single appointment and a fraction of the cost people assume. Here is what it includes.

Healthcare Power of Attorney. This document names a trusted person, typically a parent, to make medical decisions on your child’s behalf if they are unable to make those decisions themselves. It is the document that gives you a voice when your child cannot speak.

HIPAA Authorization. This is separate from the healthcare power of attorney and serves a different function. It authorizes medical providers to share health information with named individuals. Without this, a doctor cannot legally tell you your child’s diagnosis, treatment plan, or even confirm they are being treated. Your child should list both parents and any other trusted adults by name.

Durable Financial Power of Attorney. This gives a parent or trusted adult the legal authority to access financial accounts and handle financial matters if the young adult is incapacitated, unreachable, or otherwise unable to manage things themselves. This is particularly relevant for students studying abroad, deployed military members, or anyone living far from home.

FERPA Waiver. This is often handled directly through the college or university’s student portal and authorizes the school to release academic and billing records to designated individuals. Many schools prompt students to complete this during orientation. Many students skip it. It matters when tuition bills, grade disputes, or academic concerns need to be handled jointly.

Some families also choose to have a simple will drafted at this stage, particularly if the young adult owns a vehicle, has savings, or has strong feelings about how their belongings should be distributed. It is not required for everyone at 18, but it is not as unusual as it sounds.

Why a New Jersey or New York Attorney Matters for This

Healthcare power of attorney documents and advance directives are governed by state law. A form downloaded from a general website may not meet New Jersey’s specific requirements for execution, witnessing, or notarization. A document that is technically defective is a document that may be challenged or rejected when it matters most.

New Jersey requires that a healthcare power of attorney be signed by the principal in the presence of two witnesses who are not named as agents in the document. There are additional requirements around who may serve as a witness for patients in certain care facilities. These details are easy to get wrong with a template and easy to get right with an attorney.

The financial power of attorney has its own formal requirements under New Jersey law, and a durable POA, one that remains valid if the principal becomes incapacitated, must be explicitly designated as such in the document. A general power of attorney that does not include durability language terminates the moment it is needed most.

Getting these documents right the first time costs far less than addressing a crisis without them.

How to Have This Conversation With Your Child

Some young adults hear “estate planning” and immediately disconnect. The framing matters. This is not about preparing for death. It is about making sure their parents can help them if something goes wrong, and making sure their own wishes are on record.

Most 18-year-olds, when the conversation is framed practically, understand immediately. They know people get into accidents. They know emergencies happen. And most of them, when asked directly, would want their parents to be able to step in. They just have not been told that the law requires a document for that to happen.

The conversation is also an opportunity to ask questions that are worth asking at any age: Who do you trust to make decisions for you if you cannot? What are your wishes if you are seriously injured? Is there anything you would not want done? These are not morbid questions. They are the questions that prevent a family from guessing under pressure.

Plan Well. Live Better.

Turning 18 is a milestone worth celebrating. It is also a moment that calls for a short list of legal documents most families have never thought about. At Milvidskiy Law Group, we help families in New Jersey and New York get these documents in place before they are needed, not after. Learn more about our estate planning services.

This article is for informational purposes only and does not constitute legal advice. Estate planning and elder law are highly individual — what is right for one family may not be right for another. We encourage you to speak with a qualified attorney to discuss your specific situation.