Turning 18 is an important milestone for both parents and children. While much of the attention is focused on college plans, graduations, and new opportunities, it can also mark the beginning of a significant financial transition.
For the first time, your child may be managing a bank account, making spending decisions independently, building credit, earning income, and taking greater responsibility for their financial future. The financial decisions they make in the coming years will likely have a tremendous impact as they head into the real world.
Of course, this transition doesn’t mean you need to make a complete handoff overnight. It does, however, create an opportunity for families to introduce new levels of responsibility while there’s still a chance to provide guidance and support along the way.
It may also be an appropriate time to discuss certain legal documents, such as a healthcare power of attorney, durable financial power of attorney, and HIPAA authorization. These documents can help families navigate situations in which a young adult may need assistance with financial or medical matters.
It really starts with a conversation. Here are some of the financial and legal conversations worth having when leading up to your child’s 18th birthday.
1. Discuss Who Is Responsible for What
One of the most helpful conversations families can have as their child approaches 18 focuses on establishing expectations early.
- Who pays for college expenses?
- Who covers travel costs?
- How will discretionary spending be handled?
- What happens if unexpected expenses arise?
- Are there expectations around summer employment, or school-year employment?
Some of these don’t have black and white answers, and some of them can be figured out along the way. Having this conversation early lets you establish clear expectations, which can help prevent misunderstandings and provide a useful framework for future financial decisions. It can help avoid surprise expenses for you and for them.
2. Help Them Learn How Money Actually Works
Many young adults enter adulthood without ever managing a monthly budget. Before your child leaves for college or begins working full-time, consider helping them understand:
- Cash flow
- Budgeting
- Banking
- Debit cards
- Credit cards
- Saving
- Investing
- Taxes
- Interest and compounding
It may be unlikely that your soon-to-be college freshman has to make major purchases like a car or a house on their own in the next few years. They will, however, have to balance buying what they want vs. paying for what they need. They will have to consider the long-term consequences of their spending vs. saving.
As they become increasingly responsible for their own financial wellbeing, it’s important for you to give them a foundation of financial literacy that enables them to build a process which helps them make the best decisions.
Key takeaway: Financial literacy is not about teaching your child everything there is to know about money before they turn 18. It is about helping them develop a repeatable process for making thoughtful decisions. The habits they begin building now can influence their finances for decades.
3. Review Bank Accounts, Credit Cards, and Financial Access
By age 18, many children already have:
- Checking accounts
- Savings accounts
- Student credit cards
- Custodial investment accounts
This can be a good opportunity to review:
- Account ownership
- Online access and security
- Fraud awareness
As account ownership and financial responsibility transition to your child, it may also be worth discussing whether a durable power of attorney is appropriate.
This document allows a young adult to appoint a trusted person to assist with financial matters and remains effective if the young adult becomes incapacitated. Depending on the authority granted, it may allow the appointed person to help manage accounts, pay bills, communicate with financial institutions, handle insurance matters, or sign documents during an emergency.
If your child begins using credit, it can also be an appropriate time to discuss how credit scores are built and how debt can affect future opportunities. Talking about future purchases can put those concepts into context.
Decisions made in college can affect a young adult’s ability to qualify for an apartment, finance a car, or obtain favorable borrowing terms after graduation. Understanding that connection can help an 18-year-old make more thoughtful decisions and avoid costly mistakes.
4. Put Essential Legal Documents in Place
One of the most surprising changes at age 18 has little to do with money: your child is now legally an adult. Even if you still provide financial support or health insurance, you may no longer automatically have access to medical information or the legal authority to step in during an emergency.
Before a child leaves for college, studies abroad, travels, or begins living independently, families should consider three essential documents:
Healthcare Power of Attorney
A healthcare power of attorney allows your child to name a trusted person, often a parent, to make healthcare decisions if your child is unable to make or communicate those decisions. In many plans, this authority is springing, meaning it becomes effective upon incapacity rather than giving the agent immediate authority while the young adult can act independently.
Durable Financial Power of Attorney
A durable financial power of attorney allows your child to appoint someone they trust to assist with financial and administrative matters. Depending on how the document is drafted, the authority may be available immediately or only upon incapacity. What makes the power of attorney "durable" is that the authority continues even if your child later becomes incapacitated. The specific powers granted depend on the document and applicable state law.
HIPAA Authorization
A HIPAA authorization identifies the people who may receive protected health information and communicate with doctors, hospitals, and other healthcare providers. It provides access to information but does not, by itself, grant healthcare decision-making authority. That is why families often complete both a HIPAA authorization and a healthcare power of attorney.
Most families will hopefully never need to use these documents. But if an accident, illness, or emergency occurs while a child is away from home, having them completed in advance can reduce delays and uncertainty during an already stressful situation.
5. Review Custodial Accounts and Education Savings
Many families have accumulated assets on behalf of their children through:
- Uniform Transfers to Minors Account (UTMA)
- UGMA accounts
- 529 Plan
- Custodial Roth IRAs
As adulthood approaches, families should understand:
- When ownership transfers
- How assets can be used
- Potential tax implications
- How those accounts fit into broader family goals
The conversation is often less about the account itself and more about helping a young adult understand the responsibility that comes with managing assets. Now is the time to explain which accounts exist, what each account was intended to accomplish, when control may transfer, and how the money can support future goals.
A young adult who understands the purpose behind the assets is better positioned to manage them responsibly rather than viewing them as simply available to spend.
6. Talk About Student Loans Before They Come
If your student is planning on taking out student loans, it’s crucial to talk to them about the implications of those loans. Student loans often feel hypothetical until repayment begins.
Before starting college, young adults should understand:
- How much they are borrowing
- Expected monthly payments when they graduate
- Interest rates
- Repayment options
- Long-term implications
This may also help shape future career decisions. Some career paths and qualifying employment may offer student loan forgiveness opportunities, but eligibility depends on the applicable program requirements.
Choosing a major, internship, and eventually an employer can affect repayment options. Helping a child understand the future impact of today’s decisions can create a more informed approach to borrowing.
7. Introduce Basic Investing Concepts
Many families wait until much later to discuss investing, but at age 18, it may be an ideal time to introduce concepts such as:
- Diversification
- Risk and return
- Compounding
- Retirement accounts
- Employer retirement plans
These discussions don’t have to be complicated. It will be helpful for your child to have a base understanding of how long-term investing works rather than pushing them to identify the perfect investment.
This too can help shape career and employment decisions. Talking to your 18-year-old about employer benefits such as 401(k)s / 403bs, employer match programs, and equity compensation can help them begin to think long-term about saving and investing.
8. Begin Including Them in Family Financial Conversations
This is often the hardest part for parents to follow through on, and it’s completely natural for parents to want to protect their children from financial discussions with good intentions. At some point, however, learning requires exposure.
Depending on maturity levels, consider gradually discussing:
- Family values around money
- Charitable giving
- College funding
- Retirement planning
- Estate planning concepts
- Healthcare powers of attorney and healthcare decision-making
- Durable financial powers of attorney
- HIPAA authorizations and access to medical records
- Family financial goals
While these documents may seem premature at age 18, many families find it helpful to discuss how financial and medical matters would be handled if a temporary illness, injury, or emergency prevented their child from acting independently. The conversation can also include whom the child trusts to help, who their healthcare providers are, and where completed documents will be stored.
These conversations can help children understand not only financial mechanics, but also the reasoning behind important decisions. As they start making financial decisions on their own (albeit with smaller impact than your own financial decisions might have), establishing a process for making decisions at an early stage can give your children a tool to avoid major mistakes.
Takeaway
Turning 18 is the beginning of both a financial and legal transition. Many of the most important lessons about saving, spending, investing, borrowing, and decision-making occur during the years that follow. It is also the point at which parents should consider whether the appropriate legal documents are in place should an emergency arise.
Parents don’t need to transfer every responsibility all at once. They can gradually increase independence while remaining a resource and sounding board. Rather than treating the 18th birthday as a single checklist, use it as a signal to establish healthy financial habits, set clear expectations, complete important legal planning, and open conversations that can support your young adult for decades to come.
How Plancorp Helps Families Navigate This Transition
At Plancorp, we view a child’s transition to adulthood as more than a college-funding conversation. We help client families identify financial and legal planning steps that are easy to overlook during the busy period surrounding graduation, college enrollment, or a move away from home.
For eligible clients, Plancorp offers complimentary access to the Vanilla platform to help young adults prepare important documents, including a healthcare power of attorney, durable financial power of attorney, and HIPAA authorization.
We can help families start the process, coordinate next steps, and make sure the documents are completed and signed or notarized as required before the child leaves for school or begins living independently. Vanilla is not a law firm, and families should consult an attorney regarding their specific circumstances and state-law requirements.
Our goal is to help families make sure their young adults are prepared not only financially, but also for the legal responsibilities that begin at age 18.
Wondering how college funding, custodial accounts, Roth IRAs, healthcare powers of attorney, durable financial powers of attorney, HIPAA authorizations, and other planning decisions fit into your family’s broader financial picture? Start a conversation with a Plancorp advisor to identify opportunities and help your family prepare for the next stage with confidence.
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