Turning 18: Legal, Financial, and Practical Considerations for Young Adults and Their Parents
A helpful guide for parents and young adults navigating the legal transition into adulthood in the state of Wisconsin.
Eighteen is often viewed as a milestone year filled with graduation parties, first jobs, military enlistments, trade school plans, college move-in days, and newfound independence. What many families don’t realize is that turning 18 also brings significant legal changes. Overnight, a child becomes an adult in the eyes of the law.
As an estate planning attorney, these are some of the most common questions I hear from parents and young adults as they navigate the transition into adulthood.
Questions Every 18-Year-Old Should Know the Answer To:
1.) If I’m 18, can I sign legal documents on my own?
Yes! Once you turn 18, you can legally enter into contracts, open bank accounts, apply for credit, sign leases, register to vote, and make your own medical and financial decisions. You may also be responsible for completing employment paperwork and filing tax returns related to your income.
Those decisions carry real legal consequences, so it’s important to understand what you’re signing before you agree to anything. This is especially true for apartment leases, credit cards, student housing agreements, and employment contracts.
2.) Isn’t estate planning something my grandparents worry about?
That’s one of the most common misconceptions I hear. Most people hear the phrase “estate planning” and picture retirees reviewing wills and trusts. But for many young adults, the conversation is less about what they own and more about who they trust to help them if something unexpected happens.
For example, if an 18-year-old is hospitalized following an accident, parents may discover they no longer have automatic access to medical information or authority to make decisions on their child’s behalf. Similarly, handling financial matters can become more complicated if a young adult is temporarily unable to act for themselves.
That’s why some of the most important estate planning documents for an 18-year-old are a Health Care Power of Attorney, HIPAA Authorization, and Durable Financial Power of Attorney. These documents allow young adults to identify trusted individuals who can receive medical information, make healthcare decisions, or assist with financial matters if needed.
3.) If something happens to me, won’t my parents automatically be able to help?
Not necessarily. Once you turn 18, your parents no longer automatically have the legal authority they had when you were a minor. Depending on the circumstances, doctors, hospitals, banks, and other institutions may be limited in the information they can share with your parents. Many young adults are surprised to learn this. A few simple legal documents can help ensure the people you trust are able to assist if needed.
4.) What personal information should I know as I become an adult?
You should know:
- Your Social Security number
- Health insurance information
- Emergency contact information
- Banking information
- How to access important online accounts
- The name and contact information of your primary physician
You do not want the first time you’re asked for this information to be during an emergency. Knowing where these records are located and how to access them on your own is an important part of becoming independent.
5.) Why should I care about my credit score already?
Because financial habits formed at 18 often follow you much longer than you expect.
Credit card offers can be tempting, but carrying balances, missing payments, or co-signing for friends can create long-term financial challenges. Before signing any financial document, make sure you understand exactly what obligations you are taking on and whether you will be legally responsible for repayment. Learning the basics of budgeting, saving, and responsible credit use now can affect opportunities for years to come.
What Parents Are Often Surprised to Learn After Their Child Turns 18:
1.) What rights do I lose when my child turns 18?
More than many parents realize. Even if your child still lives at home, is on your health insurance, and relies on you financially, they are legally an adult at 18. That means you generally do not have automatic authority to:
- Access medical records
- Speak with medical providers
- Make medical decisions
- Handle certain financial matters
- Access some educational records
Many parents assume these rights continue because they are still supporting their child. Legally, that is often not the case.
2.) What documents should my child consider once they turn 18?
Every family’s circumstances are different, but many young adults benefit from:
- Health Care Power of Attorney
- HIPAA Authorization
- Durable Financial Power of Attorney
- A Simple Will
A Health Care Power of Attorney allows a trusted person to make medical decisions if a young adult is unable to communicate or make decisions for themselves. A HIPAA Authorization allows designated individuals to receive medical information and communicate with healthcare providers. A Durable Financial Power of Attorney authorizes a trusted person to handle financial matters if assistance is needed.
These documents can help ensure that trusted individuals are able to access information or assist with decisions if a young adult is unable to do so themselves. As young adults begin opening financial accounts, enrolling in workplace benefit plans, or obtaining life insurance through an employer, it is also important to pay attention to beneficiary designations. These designations often determine who receives certain assets, regardless of what a will says.
3.) How can I help my child become more independent?
One of the best gifts parents can give is preparation rather than protection.
Help your child learn how to:
- Schedule medical appointments
- Understand insurance coverage
- Manage a bank account
- Track expenses
- Understand basic tax and employment paperwork
- Recognize scams and identity theft
- Safely store important documents
The goal is not for parents to remain involved in every decision. The goal is to ensure young adults have the tools to make informed decisions on their own.
Final Thoughts
Turning 18 is an exciting milestone, but it also marks one of the most significant legal transitions a young person will experience. Whether the next step is college, military service, trade school, the workforce, or something entirely different, adulthood comes with new rights, new responsibilities, and new decisions.
For young adults, this is an opportunity to begin taking ownership of their financial, medical, and legal affairs. For parents, it is an opportunity to shift from decision-maker to trusted advisor while ensuring the right protections are in place if the unexpected occurs.
A few simple conversations and properly drafted legal documents can help families navigate emergencies, protect privacy, and support a young adult’s growing independence without creating unnecessary obstacles during a difficult situation.
Every family is different, and the appropriate planning tools will depend on your family’s specific circumstances and goals. If your child is approaching age 18 or has recently become an adult, it may be worth discussing whether documents such as a Health Care Power of Attorney, HIPAA Authorization, Durable Financial Power of Attorney, or a basic Will are appropriate.
If you would like to learn more, we invite you to contact HKK Law Offices. Our attorneys are available to meet by phone, video conference, or in person at our offices in Sheboygan, Mequon, and Random Lake.
Disclaimer: This article is provided for general educational purposes only and should not be considered legal advice. Reading this article does not create an attorney-client relationship. Because every situation involves unique facts and circumstances, you should consult a qualified attorney regarding your specific legal needs.
