The best investment account for a child depends on what you want the money to do. A 529 plan is the strongest choice if the goal is paying for education, a custodial Roth IRA offers unmatched long-term growth if your child has earned income, and a custodial brokerage account (UGMA/UTMA) gives the most flexibility with no restrictions on how the money is eventually spent. Many parents open more than one type, pairing a 529 for college costs with a Roth IRA or custodial account for everything else.
529 Plans: Best for Education Savings
A 529 plan is a tax-advantaged account specifically designed for education expenses. Your contributions grow tax-free, and withdrawals are also tax-free when used for qualified costs like tuition, room and board, books, and up to $10,000 per year in K-12 tuition. Every state sponsors at least one plan, and you can typically open an account in any state regardless of where you live.
The major advantage is the tax-free growth. If you invest $200 a month starting at birth and earn a 7% average annual return, you’d have roughly $86,000 by the time your child turns 18, with a significant portion of that being untaxed investment gains. No other education-focused account offers that combination of contribution room and tax benefit.
One concern parents have is what happens if the child doesn’t go to college or gets a scholarship. Starting in 2024, the SECURE 2.0 Act added an escape valve: you can roll unused 529 funds into a Roth IRA in the child’s name, up to $35,000 over their lifetime. The rollover is subject to annual Roth IRA contribution limits ($7,500 for 2026), the 529 account must have been open for more than 15 years, and any specific contribution must have been in the account at least five years before it can be rolled over. This makes 529 plans significantly less risky than they used to be.
For financial aid purposes, a 529 owned by a parent is treated as a parental asset on the FAFSA. That means only 12% of its value counts toward the family’s expected contribution, compared to 20% for assets owned by the student. This lighter weighting makes parent-owned 529 plans one of the more financial-aid-friendly ways to save.
Custodial Roth IRA: Best for Long-Term Wealth
If your child earns money, even from babysitting, mowing lawns, or a part-time job, they can contribute to a custodial Roth IRA. You manage the account until they reach adulthood, at which point it becomes their own Roth IRA. The 2025 contribution limit is $7,000 or the child’s total earned income for the year, whichever is less.
The power of a custodial Roth IRA is time. A teenager who contributes $3,000 a year from ages 14 to 18 would have roughly $15,000 invested. Left untouched until age 65 with a 7% average return, that $15,000 could grow to over $300,000, all tax-free in retirement. No other account gives a young person that kind of head start on retirement savings.
Contributions (not earnings) can be withdrawn at any time without taxes or penalties, which provides some flexibility if the money is needed before retirement. The key requirement is that your child must have legitimate earned income. The IRS does not require a W-2 or formal employer; income from self-employment like tutoring or yard work qualifies. But you should keep records of the work performed and payment received, because the income needs to be reported on a tax return.
UGMA/UTMA Custodial Accounts: Most Flexible
A UGMA (Uniform Gifts to Minors Act) or UTMA (Uniform Transfers to Minors Act) custodial account is a standard brokerage account held in the child’s name with you as the custodian. You can invest in stocks, bonds, ETFs, mutual funds, or almost anything else. There are no contribution limits, no restrictions on what the money can be used for, and no requirement that your child have earned income.
The tradeoff for that flexibility is weaker tax treatment. Investment gains, dividends, and interest in a custodial account are subject to the “kiddie tax.” For 2026, the first portion of a child’s unearned income (up to a threshold set by the IRS) is tax-free, the next portion is taxed at the child’s rate, and unearned income above $2,700 is taxed at the parent’s marginal rate. For most families with modest account balances, this tax impact is small. But if the account grows substantially, the annual tax drag can add up compared to a 529 or Roth IRA.
There are two other things to know. First, the money legally belongs to the child. When they reach the age of majority (18 or 21, depending on the state and account type), they gain full control and can spend it on anything. You cannot take it back. Second, because the FAFSA treats custodial accounts as student-owned assets, 20% of the balance counts toward the expected family contribution for financial aid. That’s nearly double the 12% rate applied to parent-owned assets like 529 plans.
How to Choose the Right Account
Start by identifying your primary goal. If you’re saving for college or other education costs, a 529 plan should be your first choice. The tax-free growth is hard to beat, and the Roth IRA rollover option reduces the risk of overfunding. If your child has a job or earns money from freelance work, adding a custodial Roth IRA alongside the 529 gives them a remarkable head start on retirement savings with money that can also be tapped (contributions only) for a first home or emergencies.
If you want to give your child an investment account with no strings attached, perhaps to teach them about investing or to set them up with a down payment fund, a UGMA/UTMA custodial brokerage account is the right fit. Just keep in mind the kiddie tax implications and the fact that the child will own the money outright at adulthood.
Where to Open These Accounts
Most major brokerages offer all three account types with no account minimums and no commissions on stock and ETF trades. Charles Schwab is a strong option for custodial accounts, offering $0 stock and ETF trades, fractional shares, and educational resources specifically designed for different age groups. Vanguard is another solid choice, particularly if you plan to invest primarily in index funds and Vanguard ETFs (which are available as fractional shares on the platform). Fidelity similarly offers zero-commission trades and custodial account options.
For parents who want a more hands-off, automated approach, Acorns offers custodial investment accounts through its subscription plans. The Acorns Early Lite plan costs $8 per month and includes a 1% matching contribution on recurring investments. That monthly fee can eat into returns on smaller balances, though. If you’re investing less than a few thousand dollars a year, the percentage cost of the subscription may outweigh the matching benefit compared to a free account at a traditional brokerage.
For 529 plans, you can open one directly through your state’s plan (which may offer a state tax deduction on contributions) or choose another state’s plan if it has lower fees or better investment options. Many state plans are administered by the same large fund companies, so compare expense ratios before defaulting to your home state.
Combining Accounts for Maximum Benefit
The most effective strategy for many families is layering two or three account types. A 529 handles education costs tax-free. A custodial Roth IRA, funded during the years your child earns income, builds a decades-long retirement nest egg. And a small UGMA/UTMA account can serve as a hands-on investing classroom where your child learns to research companies, read statements, and watch compounding in action.
You don’t need to fund all three aggressively. Even $50 or $100 a month into a 529 from birth adds up to a meaningful college fund. A few thousand dollars in a Roth IRA during high school can grow into six figures by retirement. The earlier you start, the more time does the heavy lifting.