UTMA and UGMA Accounts: Investing on Behalf of Your Child

If you want to teach your child about investing while helping them build long-term wealth, a custodial investment account—either UTMA or UGMA—is a powerful tool. These accounts let parents invest money on behalf of minors, with the child as the account owner. The account grows tax-advantaged, and when the child reaches adulthood, they take full control. For families willing to open a real investment account and teach real investing, custodial accounts offer lessons that savings accounts alone can't provide.

However, custodial accounts come with important rules and trade-offs. There are two similar types (UTMA and UGMA) with slightly different rules. There are tax complications around "kiddie taxes." There's the question of what happens when your child turns eighteen. This article walks through custodial accounts, explains the differences, and helps you decide if one is right for your family.

Quick definition: UTMA and UGMA accounts are custodial investment accounts where a parent or guardian holds money in the child's name until they reach age of majority, teaching long-term investing and letting money grow tax-advantaged.

Key takeaways

• UTMA and UGMA are custodial investment accounts, letting parents invest in stocks/bonds on behalf of minors
• The money is irrevocably the child's—once invested, parents cannot reclaim it; it transfers to the child at age 18–21 (varies by state)
• UTMA (Uniform Transfers to Minors Act) is newer and more flexible than UGMA; it allows real estate, life insurance, and other assets
• Tax advantages exist but are limited—the first $1,300 of earnings (2024) is tax-free; the next $1,300 is taxed at the child's rate; earnings over $2,600 are taxed at parents' rate
• They're different from 529 plans (education-specific) and Roth IRAs (retirement-specific); custodial accounts are flexible
• The child controls the account at age of majority, which might be 18, 21, or even 25 depending on state law
• Early opening (age 2–5) maximizes compound growth, allowing decades of investment returns

UTMA vs. UGMA: What's the Difference?

UTMA and UGMA are similar cousins. Both are custodial accounts that let you invest on behalf of a minor. But UTMA is newer, more flexible, and generally preferred. Understanding the difference is important if you're choosing between them.

UGMA: Uniform Gifts to Minors Act (Older)

UGMA was created in the 1950s and allows custodians to hold stocks, bonds, mutual funds, and cash on behalf of minors.

Assets allowed:

• Cash
• Stocks
• Bonds
• Mutual funds
• Options

Age of majority: Typically 18 or 21, depending on the state.

Tax treatment: Described below in detail.

Flexibility: Limited. Only financial assets are allowed.

UTMA: Uniform Transfers to Minors Act (Newer)

UTMA was created in the 1980s as an updated version of UGMA. It allows custodians to hold everything UGMA allows plus additional assets.

Assets allowed:

• Everything UGMA allows (cash, stocks, bonds, mutual funds)
• Plus: real estate, life insurance, art, vehicles, intellectual property
• Basically: any asset you can transfer to a minor

Age of majority: Typically 18–25, depending on the state. Parents can sometimes set a later age for financial assets (21 or 25).

Tax treatment: Same as UGMA.

Flexibility: Much greater. You can invest in a broader range of assets.

Which Should You Choose?

Choose UTMA if available in your state. It's newer, more flexible, and allows all the same investments as UGMA plus more. Almost all states offer both; a few only offer UGMA. If your state offers UTMA, use it.

Choose UGMA only if your state doesn't offer UTMA, or if you specifically want to limit the child's control to earlier ages.

For practical purposes, for most families, the difference is minimal. You'll invest in stocks and mutual funds either way. The real distinction is philosophical: UTMA is newer and more flexible; UGMA is traditional and slightly more restrictive.

How Custodial Accounts Work

Setting Up the Account

1. Open the account at a brokerage (Fidelity, Vanguard, Charles Schwab, etc.) in the child's name as custodian. You'll need:

   • Your ID
   • Your child's Social Security number
   • The child's date of birth
   • Funding source (check, transfer from your account, etc.)

2. Fund the account with any amount. Common sources:

   • Birthday money from grandparents
   • Part of your own savings you want to invest for the child
   • Gifts for significant achievements
   • Part of the child's earned income

3. You choose the investments as custodian. For younger kids, you might invest entirely in a target-date mutual fund (e.g., "Vanguard Target Retirement 2040") that becomes more conservative as the child ages. For older kids, you might let them choose investments.

4. You manage the account until the child reaches age of majority. You make deposits, rebalance, and manage it as if it were your own account.

5. At age of majority (18–25, depending on state), full control transfers to the child. From that point forward, they control the account. You can no longer make changes or withdrawals without their permission.

Key Rules

It's irrevocable. Once money is in the account, it's legally the child's. You cannot withdraw it for your own use. You cannot reclaim it. You can only use it for the child's benefit. (Legally, you can withdraw for the child's "support," but this is interpreted narrowly and has tax implications.)

The child receives it at age of majority. When the child turns 18–25 (depending on state), the account becomes fully theirs. If you deposited $500 when they were five, and it grew to $3,000, they receive $3,000 in full. They can spend it, invest it, or lose it. You have no say.

Tax implications matter (see the tax section below, but the short version: favorable for modest accounts, less favorable for large ones).

Tax Treatment: The "Kiddie Tax" and Beyond

Custodial accounts have complex tax rules, but the key idea is simple: the first bit of growth is tax-free, the next bit is taxed at the child's (lower) rate, and the rest is taxed at the parent's (higher) rate. Here's how it works:

The Kiddie Tax (2024 numbers; adjust for inflation)

First $1,300 earned: Tax-free. Your child's account grows; the first $1,300 of interest, dividends, and capital gains are not taxed.

Next $1,300 earned ($1,300–$2,600): Taxed at the child's rate (10–12%), not the parent's rate. This is favorable because children typically have low tax rates.

Everything over $2,600 earned: Taxed at the parent's rate. If you're in the 24% or 35% tax bracket, your child's account growth is also taxed at that rate. This is less favorable.

Example Calculation

You open a custodial account for your eight-year-old and invest $10,000 in a diversified index fund. The fund returns 7% per year (historical average for stocks).

Year 1:

• Gain: $700
• Tax owed: $0 (first $1,300 is tax-free)
• After-tax gain: $700
• Account value: $10,700

Year 2:

• Previous gain: $700
• New gain: $700 (from $10,700 × 7%)
• Total gains so far: $1,400
• Tax owed: Tax on $100 (the amount over $1,300) at child's rate (let's say 10%) = $10
• After-tax gain: $690
• Account value: $11,390

Year 3:

• Previous gains: $1,400
• New gain: $797 (from $11,390 × 7%)
• Total gains so far: $2,197
• Tax owed: Tax on $897 (amount over $1,300) at child's rate (10%) = $90
• After-tax gain: $707
• Account value: $12,097

Year 5:

• Account has grown to ~$14,000
• Annual gain is now ~$1,000
• Tax owed: For gains over $1,300, taxed at parent's rate (let's assume 24%) = ~$168 per year
• Account growth is noticeably slower due to taxes

When Kiddie Taxes Matter

Kiddie taxes don't matter much if:

• The account is small ($5,000 or less)
• You're investing in low-dividend stocks or index funds (which generate little taxable income until you sell)
• The child is over 23 (kiddie taxes stop applying at certain ages for certain types of income)

Kiddie taxes matter significantly if:

• The account is large ($50,000+)
• You're investing in high-dividend funds or trading frequently (generating lots of taxable income)
• The child is 18–23 (when kiddie taxes fully apply)

How to Minimize Taxes in a Custodial Account

Use index funds rather than actively managed funds. Index funds have lower turnover, generating fewer taxable events.

Avoid dividend-heavy funds. Dividends trigger taxable income. Growth-focused index funds (like the S&P 500) generate less tax until you sell.

Use tax-loss harvesting. When you sell a fund at a loss, you can offset gains elsewhere. This requires hands-on management but can reduce taxes.

Don't withdraw gains while the child is young. Let money compound. Once the child is 18+, they're in control, and the kiddie tax rules change anyway.

Consider a 529 plan for education-specific savings (see the comparison section). 529 plans have better tax treatment if the money is used for education.

Custodial Accounts vs. 529 Plans vs. Roth IRAs

Custodial accounts are one way to invest for a child. But they're not the only way. Understanding the alternatives helps you choose.

Custodial Account (UTMA/UGMA)

Pros:

• Flexible use (any purpose: college, car, travel, living expenses)
• No contribution limits
• Simple to open
• Child gains control at age of majority

Cons:

• Kiddie tax complications for large accounts
• Impacts child's financial aid eligibility (more on this below)
• Irrevocable (can't reclaim the money)
• Child controls it at 18–21 (no guarantee they'll use it wisely)

Best for: Investing for general purposes; building long-term wealth without a specific goal; families comfortable with the child controlling the money at 18+.

529 Education Savings Plan

Pros:

• Tax-free growth for education expenses
• No kiddie tax implications
• Contribution limits ($235,000 per child as of 2024)
• Donors maintain control (you decide when money is spent, not the child)
• Better financial aid treatment (asset is in parent's name, not child's)

Cons:

• Money must be used for education (college, K–12, student loans) or it's penalized
• Smaller tax advantage if child doesn't attend college

Best for: Families specifically saving for education; families wanting to maintain control; families wanting strong tax advantages.

More on 529s: See the 529 Plans for Kids article for full details.

Roth IRA (Custodial)

Pros:

• Tax-free growth and withdrawals (if held 5+ years after first contribution)
• No required withdrawals in retirement
• Requires earned income (teaches connection to work)
• Excellent for high-earning teenagers

Cons:

• Only available if the child has earned income from a job
• Contribution limits ($7,000 per year, or 100% of earned income, whichever is less)
• Money is specifically for retirement (penalties for early withdrawal)

Best for: Teenagers with part-time jobs; families wanting to build retirement savings; high-earning teens (like influencers or young athletes).

More on Roth IRAs: See the Custodial Roth IRA for Kids article for full details.

Comparison Table

Feature	Custodial Account	529 Plan	Roth IRA
Flexible use	Yes	Education only	Retirement only
No contribution limit	Yes	~$235k limit	~$7k/yr or 100% earned income
Tax-free growth	Partial (kiddie tax)	Yes (for education)	Yes
Requires earned income	No	No	Yes
Parent maintains control	Until age 18–21	Always	Until age 18–21
Best for age	Any	Any	15+ (with job)
Financial aid impact	Negative (student asset)	Positive (parent asset)	None

Financial Aid Impact: An Important Consideration

Custodial accounts have a significant downside: they negatively impact financial aid eligibility.

When your child applies for college and completes FAFSA (Free Application for Federal Student Aid), the government asks: "What assets does the student own?" Money in a custodial account (which is in the child's name) counts as a student asset.

Financial aid formulas expect the student to spend 20% of their assets per year toward education. If your child has $30,000 in a custodial account, the formula assumes they'll contribute $6,000 per year to education costs, reducing their financial aid eligibility by $6,000.

Compare this to a 529 plan, which is owned by the parent. The 529 reduces financial aid, but at a lower rate (5.64% expected contribution vs. 20% for student assets).

Example:

• Scenario A: $30,000 in a custodial account (child's name) → reduces aid by $6,000/year
• Scenario B: $30,000 in a 529 plan (parent's name) → reduces aid by $1,692/year
• Difference: $4,308/year in lost financial aid

This is why 529 plans are often better than custodial accounts if college is likely. If you're saving for education, a 529 plan preserves financial aid. A custodial account erodes it.

However, if you're saving for non-education purposes, financial aid impact is irrelevant, and a custodial account works fine.

When Custodial Accounts Make Sense

Custodial accounts are right if:

1. You want to teach investing — opening a real account and letting your child see real investments grow is powerful
2. You're not saving for education — if the money is for general life (car, travel, wedding), a custodial account is perfect
3. You're comfortable with the child controlling it at 18–21 — you're okay that they might spend it differently than you'd prefer
4. The amount is modest — kiddie taxes complicate large accounts
5. You have time — opening at age 5–8 gives decades for compound growth

Custodial accounts are not right if:

1. You're saving specifically for college — use a 529 plan instead for better tax and financial aid treatment
2. You want to maintain control of the money — custodial accounts transfer control at age of majority
3. You might need the money for your own emergencies — irrevocable means you can't reclaim it
4. You want tax-free growth without complications — 529 plans are simpler

Diagrams and Decision Tree

Common Mistakes Parents Make

Mistake 1: Opening a custodial account for education savings. You want to save for college, so you open a custodial account and invest $50,000. At college application time, it reduces financial aid by $10,000/year. A 529 plan would have reduced aid by only $2,820/year. You paid thousands in lost financial aid for the wrong account type. Use 529 plans for education.

Mistake 2: Assuming you can reclaim the money in an emergency. You face a financial crisis and try to withdraw money from your child's custodial account to cover it. Legally, you can't (it's the child's money). Or you withdraw it and face tax penalties. Custodial accounts should only contain money you're genuinely willing to give to your child. Don't use them as a pseudo-emergency fund.

Mistake 3: Not explaining to your child what the account is. You invest $20,000 for them as a "surprise," but never mention it. When they turn 18, they discover $35,000 suddenly in their account and don't understand what it is, how it happened, or what the withdrawal implications are. The account loses its teaching value. Discuss the account openly: "I invested $100 per month for you. It's grown to $15,000. When you turn 18, it's yours to manage."

Mistake 4: Letting the child invest recklessly once they control it. At 18, your child takes full control. If you haven't taught them how to invest, they might panic-sell in a downturn, move all to crypto, or spend it frivolously. Use the years before age 18 to teach investing. Show them your investment choices and explain why.

Mistake 5: Opening accounts at multiple brokerages. You open an account at Fidelity for the stocks, another at Vanguard for the mutual funds, another at a brokerage for ETFs. Now you're managing three accounts, the child is confused about their total balance, and you're tracking multiple logins. Open one account at a major brokerage (Fidelity, Vanguard, or Schwab) and invest everything there.

Mistake 6: Investing too conservatively. You open a custodial account for a five-year-old and put all the money in a bond fund earning 2% per year. Over 13 years until the child turns 18, the account barely grows. At that age, your child has decades until they need the money (retirement is 50+ years away). Invest in stocks (at least 80–90% for very young children). The account should grow aggressively; you can shift to conservative as the child approaches age 18.

FAQ

Can I put my child's earned income in a custodial account?

Yes. If your ten-year-old earns $500 from chores, gifts from grandparents, or modeling, you can invest it in a custodial account. This is excellent: they earned money, they watch it grow, they see investing in action.

What happens if the child doesn't need the money at 18?

The account becomes theirs at 18. If they don't need it, they can let it sit and keep growing. A 20-year-old with $40,000 in a custodial account can let it compound in the stock market for 50+ years until retirement. Excellent wealth-building habit.

Can I change the custodial account to another name?

Once you establish a custodial account in the child's name, you cannot transfer it to another child. But you can establish separate accounts for different children.

What if the child wants to spend the money on something I don't approve of?

At 18, it's their money. If they want to buy a motorcycle instead of saving for college, that's their choice (and their mistake to learn from). You can advise, but you cannot control. This is why some parents prefer 529 plans—you maintain control and can ensure the money is spent on education.

Can I put life insurance in a custodial account?

In a UTMA account, yes. Life insurance policies can be transferred to a custodial UTMA account. In UGMA, no. But for most families, custodial accounts are for investments (stocks, bonds, mutual funds), not life insurance.

What if I gift money to the custodial account?

The gift is legal and tax-free if it's under the annual gift tax limit ($18,000 per person in 2024). There's no income tax on the gift. The account grows, and eventually the child owns it. This is a simple wealth-transfer strategy.

Can I name the child as a beneficiary of my will and bypass the custodial account?

Yes, but it's not ideal for teaching. If you leave money to your child in your will, they receive it at 18 with no account set up and no structure. A custodial account, set up and managed during your lifetime, teaches them the habits. When the custodial account transfers to them at 18, they're already comfortable with it.

Real-world examples

Example 1: The early-start compound growth. Parents open a custodial account for their newborn and invest $2,000 per year for 18 years (total: $36,000). The account grows at 7% per year. By age 18, the account is worth ~$73,000. The child takes control at 18 with $73,000 and can start their adult financial life with a massive advantage. Had they waited until the child was 10, investing $2,000/year for 8 years, the account would only be ~$20,000 at 18. The six-year difference (ages 2–8 vs. 10–18) doubles the wealth. This is why early opening is critical.

Example 2: The reckless withdrawal mistake. Parents invest $10,000 in a custodial account for their child over 10 years. The account grows to $19,000 by age 18. The child takes control. They panic about a small expense and withdraw $5,000. A few months later they change their mind and want to put it back—but can't without earning it. Now the account is $14,000 instead of $19,000. Or worse, they withdraw $19,000 and spend it on a used car that depreciates to $8,000. They lost $11,000 in value. This happens because the child didn't understand investing before taking control.

Example 3: The education account mistake. Parents open a custodial account and invest $40,000 for their child's college. When the child applies to college, financial aid is calculated assuming the $40,000 student asset will contribute $8,000/year. Aid is reduced by $8,000/year. A 529 plan would have reduced aid by only $2,256/year. Over four years of college, the difference is ~$23,000 in lost financial aid. The parents paid $23,000 extra out-of-pocket because they chose the wrong account type.

Example 4: The teaching investment. Parents open a custodial account for their ten-year-old with $500 of their birthday money. The child picks three stocks they understand: Apple, Nike, and Microsoft. For five years, they check the account quarterly. They see stock prices fluctuate. They learn: Apple goes up, Microsoft goes down, you don't panic-sell. By age 15, the account is worth $800. They understand stocks viscerally in a way that reading or lectures could never teach. By 18, they're making independent investment decisions because they understand how the system works.

Related concepts

• Teaching Kids About Money — foundational money education
• Kids Savings Accounts — basic savings before investing
• Custodial Roth IRA for Kids — retirement accounts for working kids
• 529 Plans for Kids — education-specific investment accounts
• How Compound Interest Works — why time in the market matters
• Stock Market Basics — foundational investment knowledge

Summary

Custodial UTMA and UGMA accounts are powerful tools for teaching investment and building long-term wealth. They allow parents to invest on behalf of minors, with the account growing tax-advantaged, until the child takes full control at age 18–21. UTMA is newer and more flexible than UGMA; choose UTMA if available in your state. The accounts have tax complications (kiddie taxes) but are ideal for modest accounts or non-education savings. However, for education-specific savings, 529 plans are superior because of better tax treatment and financial aid impact. Opening a custodial account when your child is young (age 5–8) and investing in diversified stock funds maximizes compound growth. The key is transparency: discuss the account with your child, let them see how it grows, and gradually teach them to invest so they're prepared to manage it wisely when they turn 18.

Next

→ Custodial Roth IRA for Kids