A custodial account is an investment account that an adult opens and manages on behalf of a minor. The money belongs to the minor from the first deposit — you manage it, but you don’t own it. There are two main types: UGMA (for financial assets like stocks and bonds) and UTMA (which also includes real estate and other assets). When the minor reaches the age of majority (between 18 and 25, depending on the state), full control passes into their hands.
With the cost of college, housing, and almost everything else rising year after year, preparing the next generation is no longer a symbolic gesture — it’s a real necessity. Custodial accounts are one of the most accessible ways to do it, and they’re worth understanding well.
What you need to know
- Custodial accounts are investment accounts opened in a minor’s name and managed by an adult until the minor reaches the age of majority.
- The money deposited legally belongs to the minor from day one, not to the adult who manages it.
- There are two types: UGMA and UTMA. The difference lies in which assets they allow and when control transfers to the minor.
- Earnings inside these accounts may be subject to the “kiddie tax,” with specific IRS rules.
- They are a real tool for building intergenerational wealth, but it’s worth understanding the rules before opening one.
Custodial accounts have existed for decades in the U.S. financial system. Yet many families don’t know about them because the information is often fragmented across technical sites and mostly written in English. That informational barrier leaves out the very people who could benefit the most.
The desire that drives searches for these accounts is concrete: for your kids to start out with something more solid than you had. It’s not about accumulating a fortune, but about placing a first financial piece that works in their favor from early on, taking advantage of the years they have and that money needs.
This article explains what UGMA and UTMA custodial accounts are, how they work in practice, who really owns the money, what happens with taxes, and why they deserve a place in family financial planning.
What many people get wrong about saving for their kids
Setting money aside in your own bank account “for when they grow up” seems like a reasonable plan, but it has a serious problem. Legally, that money is yours. If you face a lawsuit, an unpaid debt, or a garnishment, those funds are on the table because there’s no legal separation between your assets and what you set aside for them.
A custodial account changes that at the root. The minor is the legal owner of the assets from the first deposit. You, as the custodian, manage the account, make investment decisions, and oversee the movements — but only until the minor reaches the age of majority set by your state’s law. That legal structure protects the money’s original purpose in a way that an account in your name never could.
How do UGMA and UTMA custodial accounts work?
Custodial accounts operate under two state legal frameworks: UGMA (Uniform Gifts to Minors Act) and UTMA (Uniform Transfers to Minors Act). Both allow an adult to open and manage an investment account in a minor’s name, but with different scopes.
UGMA covers financial assets: stocks, bonds, mutual funds, and cash. UTMA significantly broadens the range and includes real estate, royalties, and even patents. Not every state offers both, so the option available depends on where you live.
According to Investor.gov, the custodian takes on a fiduciary responsibility: they must manage the assets exclusively for the minor’s benefit. That means you can’t redirect that money toward personal expenses — only toward whatever directly benefits the child.
Whose money is it? The irrevocable gift rule
This point surprises many parents opening these accounts for the first time: the money you deposit no longer belongs to you. From the moment of the first deposit, you’re making an irrevocable gift. You plant, water, and care for it, but what grows belongs to the minor.
In practical terms, “irrevocable” means you can’t recover those funds for personal use or redirect them to another beneficiary. Every withdrawal you make as custodian has to be justified as an expense that directly benefits the minor.
When the minor reaches the age of majority — generally between 18 and 21, depending on the state and the account type — control passes fully to the young adult. No conditions, no restrictions on how to use the money. That total freedom can be an extraordinary advantage or a considerable risk, and the difference is set by the financial education you cultivated at home during those years.
What about taxes? The “kiddie tax” simplified
Earnings generated inside these accounts aren’t tax-exempt. They’re subject to the so-called “kiddie tax” — IRS rules that determine how a minor’s unearned income is taxed. The kiddie tax is basically the way the IRS keeps parents from transferring investments into their children’s names just to pay less. For the 2025 and 2026 tax years, the structure works like this:
- The first $1,350 of unearned income is generally exempt from federal taxes.
- The next $1,350 is taxed at the minor’s tax rate.
- Above $2,700, the income may be taxed at the parents’ rate.
These figures shouldn’t discourage you from considering a custodial account. What they should do is motivate you to plan ahead. If the earnings grow significantly, it’s a good idea to consult with a tax professional who can evaluate your specific family situation before tax season arrives.
What happens when your child turns 18 or 21?
This is the moment every parent should have mapped out from the day they open the account. When the minor reaches the age of majority — 18 under UGMA in most states, or up to 21 or 25 under UTMA — full control of the account passes into their hands.
There are no conditions or restrictions on use. The money is theirs outright, whether for college, for their own business, or for whatever they decide. That’s why the account and the family financial conversation should grow in parallel. The account is the vehicle; financial education is what determines where it’s heading.
To picture the potential: if you open a custodial account when your child is 1 year old and contribute $50 a month for 17 years, with a hypothetical 8% annual return, the account could reach approximately $22,000. You would have contributed $10,200 in total. The difference would come from the potential effect of compound interest working over time. This is a hypothetical example for illustrative purposes. Actual results may vary. It assumes a constant rate of return, which is not guaranteed.
That $22,000 could cover the down payment on a first apartment or the start of a college fund. It’s not a life-changing figure, but in today’s economic context — where a housing down payment or a college semester requires thousands of dollars — that base makes a tangible difference. To compare this tool with other available options, you can check our comparative guide of accounts for your children’s future.
Frequently asked questions about custodial accounts
Do custodial accounts affect college financial aid?
Yes, they can affect it. On the FAFSA form, UGMA/UTMA custodial accounts are considered student assets and are assessed at a rate of 20%, compared to only 5.64% for parent assets. That means for every $10,000 in the account, your Student Aid Index (SAI) rises by approximately $2,000, which could reduce financial aid eligibility. It’s worth weighing this factor before deciding how to save for your children.
Can I withdraw money from the custodial account if I need it?
The funds are an irrevocable gift to the minor. As custodian, you can make withdrawals, but only if they directly benefit the child. You can’t use that money for personal expenses. That restriction isn’t an inconvenience — it’s the legal protection the account offers the minor.
What’s the difference between a UGMA and a UTMA account?
UGMA allows you to transfer financial assets like stocks, bonds, and cash. UTMA is broader and includes real estate and other types of property. The age at which the minor takes control varies: generally 18 for UGMA and up to 21 or 25 for UTMA, depending on the state.
Is there a limit on how much I can contribute to a custodial account?
There’s no fixed annual limit like there is on an IRA. But contributions are considered gifts under IRS gift tax rules. In 2025, you can give up to $19,000 per person per year ($38,000 for married couples filing jointly) without reporting it. For larger amounts, consult a tax professional. The annual exclusion is adjusted for inflation each year.
When you’re ready to explore more family investment options, you can review our financial goals for families with kids or take the next step and start building the habit of investing for your family with Finhabits.
Custodial accounts aren’t a magic formula and they don’t work the same for every family. They’re a concrete, regulated, and accessible tool for any parent or guardian in the United States who wants to take a first financial step on behalf of their children. Understanding the mechanics — who owns the money, how taxes work, when control transfers — is what allows you to make informed decisions instead of impulsive ones.
Intergenerational wealth isn’t built with a single move. It’s built with informed decisions, consistency, and the willingness to start before you feel completely ready.
Sources
- Internal Revenue Service (IRS) – Topic no. 553, Tax on a child’s investment and other unearned income (kiddie tax)
- Internal Revenue Service (IRS) – Frequently asked questions on gift taxes
- Investor.gov – SEC Office of Investor Education and Advocacy
All sources were consulted and verified on 2026-06-29. External links open in a new window.
Disclaimer:
This material is provided for informational purposes only and is not intended to offer investment, legal, or tax advice. All images and figures are for illustrative purposes. The investment advisory service is offered by Finhabits Advisors LLC, an SEC-registered investment adviser. Registration does not imply a certain level of skill or training. Past performance is not a guarantee of future results or returns. All investments involve risk and may result in the loss of capital. Securities are offered by Apex Clearing Corporation, a member of FINRA and SIPC. Securities in your APEX account are protected up to $500,000, which includes a $250,000 limit on cash. See SIPC.org for more details.
© Finhabits, Inc. All rights reserved.
