Should You Open a Custodial Account for Your Child? What UGMA/UTMA Accounts Are — and Why Habits Come First

In March 2026, Robinhood launched Custodial Accounts — UGMA/UTMA brokerage accounts for children — alongside a broader Robinhood for Families hub. It’s the first time a major US retail brokerage has built a dedicated family-finance product line, and it lands in the middle of a rapid consolidation in the kids’ money space. Barclays agreed to acquire GoHenry UK from Acorns for roughly £180 million in June 2026. MrBeast’s Beast Industries bought Step, with its seven million users, in February. Cash App for Kids opened to ages 6–12 in April. Greenlight took Financial Education App of the Year at the 2026 FinTech Breakthrough Awards. Childhood investing has officially gone mainstream.

That’s genuinely good news for category credibility. It also creates a new pressure on parents: should we open a custodial account for our child, and if so, when? The honest answer is that a custodial account is a useful tool for many families — but it belongs in the right sequence. Habits come first. This guide explains what UGMA and UTMA accounts actually are, where they fit, and how to think about them alongside the daily money routines that do most of the real teaching.

What a Custodial Account Actually Is

UGMA and UTMA are the two legal frameworks US states use to hold assets in a minor’s name under adult management. UGMA stands for the Uniform Gifts to Minors Act; UTMA is the Uniform Transfers to Minors Act. UGMA is the older, narrower version — financial assets only. UTMA is the modern, broader version, allowing real property, art, and other assets. Most states operate under UTMA today, and for typical families the practical difference is minimal.

The Core Mechanics

A parent (or another adult) serves as the custodian, managing the account until the child reaches the age of majority — usually 18 or 21, depending on state, with a few UTMA states allowing custodianship to extend to 25. Once the child hits that age, control transfers to them entirely and irrevocably. That last word matters: assets contributed to a UGMA or UTMA account belong to the child from the moment they’re deposited. You cannot take the money back, redirect it to a sibling, or repurpose it later.

There is no contribution cap — parents, grandparents, aunts, uncles, and family friends can all contribute. Gifts under the annual gift-tax exclusion ($18,000 per donor per child in 2024; indexed annually — verify current IRS limits) don’t require any special filing. There is also no restriction on how the money is used once the child takes control. Unlike a 529 plan, which is earmarked for education, a custodial account can fund a first apartment, a car, a business, tuition, or a very expensive weekend. That flexibility is a feature and a risk, depending on the child and the amount.

What You Can Hold Inside

A UGMA or UTMA brokerage account can hold stocks, ETFs, mutual funds, and bonds — a full investment portfolio. A UTMA can additionally hold non-financial assets. For most families, this looks and behaves like an ordinary brokerage account, with the child listed as the beneficial owner and the parent listed as custodian.

How Custodial Accounts Compare to Other Kids’ Savings Vehicles

A custodial account isn’t the only way to save or invest for a child. Here’s how the main options stack up.

Each vehicle answers a different question. A 529 is optimized for college. A Roth IRA for Kids is unbeatable for a working teen who wants tax-free retirement growth. A Trump Account, newly available for children born 2025–2028, comes with a federal seed deposit — we cover it in depth in our Trump Accounts parents’ guide. A custodial account trades tax advantages and financial-aid friendliness for pure flexibility.

The Financial Aid Caveat

This one deserves its own spotlight. On the FAFSA, child-owned assets are assessed at up to 20% when calculating expected family contribution. Parent-owned assets are assessed at only about 5.64%. That means a $10,000 UGMA balance could reduce financial aid by up to $2,000 per year, while the same $10,000 in a parent-owned 529 would reduce aid by roughly $564.

That’s a genuine trade-off. It’s not a reason to avoid custodial accounts — it’s a reason to plan deliberately. If college is likely and financial aid may be part of the picture, a 529 typically wins on the math. If college isn’t the primary goal, or if aid is unlikely regardless, the aid impact matters less. Note: these percentages reflect FAFSA’s methodology, which transitioned from the Expected Family Contribution (EFC) formula to the Student Aid Index (SAI) beginning with the 2024–25 award year; specific figures may vary — consult a financial aid advisor for your situation.

The Kiddie Tax, in Plain English

The Kiddie Tax applies to unearned income — dividends, interest, capital gains — in a child’s account. Under current rules, the first ~$1,300 of unearned income is tax-free, the next ~$1,300 is taxed at the child’s rate, and anything above ~$2,600 is taxed at the parent’s marginal rate for children under 19 (or under 24 if a full-time student).

For most families with modest balances, the Kiddie Tax barely registers. A $10,000 account earning 7% generates $700 in gains — well under any threshold. It becomes a real consideration once balances climb into five or six figures and the account is actively generating dividends or realized gains.

When a Custodial Account Makes Sense — and When It Doesn’t

Custodial accounts fit certain family situations well and other situations poorly. Being honest about which category you’re in matters more than the account itself.

Good Fits

• Families who want to invest on a child’s behalf without locking the money into education
• Grandparents or relatives who want to gift investments directly and stay under the annual gift-tax exclusion
• Households already using a 529, looking for a supplement rather than a replacement
• Families whose child’s investment income will likely stay well below Kiddie Tax thresholds
• Parents of older teens (roughly 13 and up) who are ready to learn about investing with real stakes

Less Good Fits

• Families for whom college financial aid may be meaningful — a 529 is more aid-friendly
• Very young children who benefit far more from tangible, hands-on habit tools than from a brokerage account they cannot yet understand
• Households that haven’t yet built the foundational money routines — allowance, chores, Save/Spend/Share, weekly conversations

That last point is where most of the actual leverage lies, and it deserves its own section.

Why Habits Come First: The Research

A brokerage account is a tool. Habits are the operating system that tells a child how to use tools. In every serious body of research on children and money, the habit foundation comes first — chronologically, developmentally, and in terms of long-term outcomes.

Cambridge University: Habits Are Set by Age 7

Cambridge University’s habit-formation research found that money habits are largely formed by age 7, organized around three core capacities: delayed gratification, goal-directed saving, and spending awareness. The neurological basis is prefrontal cortex development, which rewires most rapidly between ages 3 and 7. Interestingly, children in the study who made small money mistakes at ages 5–7 had better long-term outcomes than children whose parents kept tight control. Practice matters more than perfection. We unpack the full study in our deep-dive on the age-7 habit window.

CFPB Building Blocks: Three Domains, in Order

The CFPB’s Building Blocks of Youth Financial Capability framework describes three developmental domains:

• Executive Function — planning, self-control, working memory. Develops most rapidly ages 3–12.
• Financial Habits and Norms — values, routines, family money culture. Largely set ages 6–12.
• Financial Knowledge and Decision-Making — most teachable in the tween and teen years.

Investment accounts sit inside that third tier. They support decision-making, but they cannot supply the executive function or habits underneath. A brokerage account is an investment tool. If the habit foundation is missing, the account cannot supply it. Our post on the CFPB Building Blocks walks through each tier with age-appropriate activities.

T. Rowe Price: Parents Wait Too Long

The 14th annual T. Rowe Price Parents, Kids & Money Survey found that 66% of parents report reluctance to discuss money with their 8- to 14-year-olds, and roughly half of young adults say their parents didn’t have meaningful money conversations until age 13 or later — well past the prime habit-formation window. Encouragingly, 79% of US parents give their children an allowance, and T. Rowe Price recommends introducing basic financial concepts as early as age 5. There’s more on that starting point in our guide to beginning financial education at five.

Jump$tart and NEFE: The Long-Term Payoff

Jump$tart Coalition data show that adults who received financial education report good saving habits at 59% versus 41% without, and 48% have retirement savings as young adults versus 30% without. NEFE’s annual K–12 legislative review continues to document steady growth in state-level mandates, but school-based instruction is a supplement to family teaching, not a replacement.

The SEED for Oklahoma Kids Finding

This one is worth pausing on. The Center for Social Development at Washington University in St. Louis has followed children in the SEED for Oklahoma Kids study for years. Their headline finding: children with a designated account in their own name are more than three times more likely to attend college — and the existence of the account mattered more than the dollar amount. The identity effect — I am a saver. I have something. — turned out to be the mechanism. Opening the account and talking about it with the child compounds that effect.

That’s a strong argument for opening a custodial account. It’s an equally strong argument for making sure the conversation and the habits actually happen alongside it.

An Age-by-Age Framework for Custodial Accounts

The right role for a custodial account changes as a child grows. Here’s a practical map. For a broader view of allowance and chores across the same age bands, see our age-by-age guide to kids’ allowance.

Ages 5–7: The Cambridge Habit Window

What children need at this stage: delayed gratification practice, wants-versus-needs vocabulary, the Save/Spend/Share concept, and chore-based earning they can see. The best tools are physical — jars, visible ledgers, a simple chore chart, a consistent payday ritual, and conversation. A custodial account can absolutely exist in the background as parent-managed infrastructure. It just isn’t a teaching tool at this age. A six-year-old cannot interact meaningfully with a brokerage account; the actual learning happens with tangible small dollars. Our post on teaching kids to save with allowance, chores, and goals covers the Save/Spend/Share buckets in detail.

Ages 8–10: Work, Money, and Goals That Take Weeks

Now children can handle commission-based chores, three-bucket allocation, goals that take weeks (not minutes) to reach, and small trade-off decisions. This is when it makes sense to show the child the custodial account exists — This is money set aside for your future — and let them watch it grow across birthdays and holidays. Don’t make the brokerage account the curriculum yet. The curriculum is still the weekly allowance and the choices it forces.

Ages 11–13: Banking, Digital Money, and the First Look at Investing

Tweens are ready for how debit cards differ from cash, subscription awareness, scam recognition, and simple budgeting. This is also the right moment to open the custodial account together, if it isn’t open already, and start explaining what a stock is, what an ETF is, and why the balance moves. If the child has earned income — babysitting, yard work — a Roth IRA for Kids becomes relevant. That said, we still make the case for why young kids don’t need a debit card yet; digital tools are earned, not defaulted to.

Ages 13–17: Real Stakes, Real Conversations

Teens can — and should — participate actively. Discuss the portfolio together. Let them suggest a holding and explain their reasoning. Explain dividends and taxes. If they have a W-2, the Roth IRA becomes one of the most powerful accounts they’ll ever open. And it’s worth having an honest conversation, ideally with a financial planner, about what the custodial balance will look like at 18 or 21. A 21-year-old receiving $50,000 may or may not be ready, and that conversation is easier at 15 than at 20.

The Habits-First Framework

The right sequence is Habits → Tools → Investing, not the reverse. A custodial account sitting dormant while the habit-formation window quietly closes between ages 5 and 12 is a missed opportunity — not because the account is doing harm, but because the years that shape a child’s relationship with money are being spent elsewhere.

Before opening a custodial account, it’s worth asking: does my child already have the habit foundation in place? A simple checklist:

• Save/Spend/Share allocation — Does the child regularly set aside a portion of any money they receive?
• Earned money experience — Have they completed chores or tasks and received pay for it?
• Deferred gratification practice — Can they wait days or weeks toward a goal?
• Basic money vocabulary — Do they understand the difference between a want and a need?

If the answer to most of these is yes, a custodial account becomes a powerful next step — not just an investment vehicle, but a living lesson. If most answers are no, the account can still exist quietly in the background while the habits catch up.

The most powerful move is not choosing between the account and the habits. It’s doing both. Open the account. Contribute what you can. And build the daily routines — the allowance, the chore system, the Save/Spend/Share buckets, the weekly money conversation — that teach the child what to do with the account when it eventually becomes theirs. Compound growth is remarkable, and we cover it in our age-appropriate investing and compound growth guide. At roughly 7% average annual return — the long-run S&P 500 benchmark, not a guarantee — $1,000 invested at birth becomes about ~$3,380 by age 18 and about $7,612 by age 30. Fifty dollars a month from birth through age 18 produces roughly $10,800 in contributions (that’s $50 × 12 × 18), growing to a total account value in the $20,000–$22,000 range. Time in the market matters enormously; starting at five versus fifteen can mean a 2x difference.

But compound growth is a multiplier. It multiplies whatever habits the child brings to the money. A child who has practiced saving, waiting, choosing, and giving since age five will meet that balance ready. A child who hasn’t will meet it unprepared.

What the 2026 Landscape Actually Changes

The market signals — Robinhood’s family hub, Barclays acquiring GoHenry, MrBeast buying Step, Cash App for Kids, Greenlight’s award — all point to the same thing: kids’ finance is now a serious, well-capitalized category. That’s good for parents. More options, more competition, better products, more education. We’ve written about the broader shakeout in our post on the teen banking boom and in what families actually need from kids’ money apps.

What none of it changes: what a seven-year-old needs to learn. That part hasn’t moved in decades, and the research keeps pointing at the same answer. Small, real dollars. Consistent routines. Honest conversations. A grown-up nearby who is willing to let a small mistake happen so a bigger one doesn’t happen later.

The Bottom Line for Families

If a custodial account fits your family — you can afford to contribute, financial aid isn’t a dealbreaker, and you’re comfortable with the irrevocability — open one. The SEED research alone makes a strong case that the account itself does something. Just don’t let the account do the teaching. That job belongs to you, the allowance, the chores, and the years of small practice between now and the day the account becomes your child’s.

The most powerful financial gift you can give a child isn’t $1,000. It’s the years of small, consistent practice that teach them what to do with it.