A custodial account is a financial account an adult opens and manages on behalf of a minor, holding cash and investments that legally belong to the child from the moment of the deposit. Because minors generally cannot own securities in their own name, the account provides the legal wrapper until the child reaches an age set by state law, usually 18 or 21. Every custodial account operates under one of two state statutes: the Uniform Gifts to Minors Act (UGMA) or the Uniform Transfers to Minors Act (UTMA).
UGMA vs. UTMA
The two acts differ mainly in what the account can hold. UGMA accounts are limited to traditional financial assets: cash, stocks, bonds, and mutual funds. UTMA accounts add real estate, patents, royalties, and tangible property like artwork to that list.1Finaid. UGMA and UTMA Custodial Accounts Most states have adopted the UTMA, and several have replaced their UGMA statute entirely.2HelpWithMyBank.gov. What Is a Uniform Gifts to Minors Act (UGMA) or Uniform Transfers to Minors Act (UTMA) Account? If you plan to put anything more exotic than stocks and cash into the account, you need a UTMA in a state that offers one.
How to Open One
Setting up a custodial account is simple compared with creating a trust. You don’t need a lawyer or a court appointment. Most banks, brokerages, and investment platforms let you open one online in a few minutes.
The donor names an adult custodian, often themselves, and provides the child’s name and Social Security number.1Finaid. UGMA and UTMA Custodial Accounts The account is titled in a specific format, something like “[Custodian’s Name] as Custodian for [Minor’s Name] under the [State] Uniform Transfers to Minors Act.” That titling establishes the legal relationship and confirms that the child owns the assets.
Anyone can contribute. Grandparents, aunts, uncles, and family friends can all deposit money or transfer assets into the account. The account itself has no annual contribution limit, though contributions above the federal gift tax exclusion carry reporting consequences discussed below.
What the Custodian Can and Cannot Do
The custodian manages investments and handles tax filings until the child reaches the termination age. It’s a fiduciary role: every decision has to be made prudently and in the child’s interest. Putting the whole balance into a speculative stock on a hunch doesn’t meet that standard.
Money in the account can pay for things that benefit the child directly, such as private school tuition, summer camp, or specialized medical care. It cannot cover the basic obligations a parent already owes, like food, shelter, or clothing. Using custodial funds for groceries or rent crosses from managing the child’s money into subsidizing your own household, and that’s a breach of duty.
It’s also worth naming a successor custodian when you open the account. If the original custodian dies or becomes incapacitated without one on file, a court may need to appoint a replacement.
The Gifts Are Irrevocable
Every contribution to a custodial account is an irrevocable gift. Once the money goes in, it belongs to the child. The donor can’t take it back, and the custodian can’t redirect it. That permanence is the defining tradeoff: custodial accounts are cheap and easy to set up, but you lose all flexibility the moment you fund one.
The lock extends to the beneficiary. Unlike a 529 plan, where you can change the beneficiary to a sibling, a custodial account is tied to the named child forever. If your first child gets a full scholarship, you can’t move the money to your second child. It stays with the first.
How the Account Is Taxed
Investment income earned inside a custodial account — interest, dividends, and capital gains — is taxed to the child, not the donor. The income is reported under the child’s Social Security number.
To stop parents from parking investments in a child’s name to exploit a lower bracket, Congress created the “kiddie tax.” It applies to dependent children under 18, to 18-year-olds whose earned income doesn’t cover more than half their support, and to full-time students under 24 in the same position.
For the 2026 tax year, the child’s unearned income is taxed in three tiers:3Internal Revenue Service. Rev. Proc. 2025-32
- The first $1,350 is tax-free, sheltered by the dependent’s standard deduction.
- The next $1,350 is taxed at the child’s own rate, usually 10%.
- Anything above $2,700 is taxed at the parent’s marginal rate.
Once unearned income crosses $2,700, the child files Form 8615 to calculate the kiddie tax.4Internal Revenue Service. Instructions for Form 8615 (2025) The parent’s-rate piece is what gives the rule its teeth: a child with $10,000 in dividends can’t escape whatever bracket the parents are in.
Long-term capital gains still count as unearned income for kiddie tax purposes. If total unearned income stays under $2,700, gains are taxed at the child’s rate, which is often 0% for low-income filers. Above that threshold, the parent’s capital gains rate applies.
Parents have the option of reporting the child’s investment income on their own return using Form 8814 instead of filing a separate return for the child. The election is only available when the child’s income is entirely interest and dividends (including capital gain distributions) and totals less than $13,500 for 2026.5Internal Revenue Service. Topic No. 553, Tax on a Child’s Investment and Other Unearned Income (Kiddie Tax) It saves paperwork, but the child’s income stacks on top of the parent’s and can push adjusted gross income high enough to affect other deductions.
Gift Tax on the Contribution Side
Contributions count as completed gifts. For 2026, each donor can give up to $19,000 per recipient per year without any gift tax filing or hit to their lifetime exemption.6Internal Revenue Service. Frequently Asked Questions on Gift Taxes Married couples electing gift-splitting can give up to $38,000 per child per year. Larger gifts don’t automatically trigger tax, but the donor has to file Form 709, and the excess eats into their lifetime estate and gift tax exemption.
When the Child Takes Over
The custodian’s authority ends the moment the child reaches the state’s termination age. At that point, everything in the account transfers to the now-adult beneficiary with no conditions. The custodian has no say in how the money gets spent.
The termination age is usually 18 or 21 for UGMA accounts. UTMA ages vary more widely, and a handful of states let the donor push the age out further when the account is created, up to 25 in states like Alaska, Nevada, Oregon, Pennsylvania, Tennessee, Virginia, and Washington, and as high as 30 in Wyoming.7Finaid. Age of Majority and Trust Termination
This is the part that makes some parents uneasy. An 18-year-old who inherits a $50,000 account has every legal right to spend it on a car and a summer in Europe rather than tuition. Extending the termination age helps at the margins, but it doesn’t change the fundamental structure: once the child hits the cutoff, the money is unconditionally theirs.
Impact on College Financial Aid
Custodial accounts hurt on the FAFSA more than most families expect. Because the assets legally belong to the child, the federal aid formula treats them as student assets and assesses them at 20% of value when calculating the Student Aid Index. Parent-owned assets top out at 5.64%.8Federal Student Aid. Student Aid Index (SAI) and Pell Grant Eligibility A $40,000 UTMA reduces aid eligibility by around $8,000; the same amount in a parent’s name would reduce it by about $2,250 at most.
One workaround is converting the custodial account into a custodial 529 plan. It’s still legally the child’s money, but for FAFSA purposes it’s reported as a parent asset for a dependent student.9Finaid. Account Ownership: In Whose Name to Save? The 529 keeps the child as beneficiary and can’t be changed, but the FAFSA treatment cuts the aid penalty by roughly two-thirds.
Custodial Account or 529 Plan?
Families saving for a child often compare the two. They solve different problems.
- 529 withdrawals must go toward qualified education expenses (tuition, fees, room and board, and up to $10,000 per year for K-12 tuition) to stay tax-free. Custodial account funds can be spent on anything once the child takes control.
- 529 earnings grow tax-free and come out tax-free for qualified expenses. Custodial account earnings are taxed every year under the kiddie tax rules.
- A 529 beneficiary can be changed to another family member. A custodial account beneficiary cannot.
- A parent-owned 529 is assessed at the lower parent rate on the FAFSA. A custodial account is assessed at the student rate.
- A 529 holds only what the plan offers. A UTMA can hold stocks, bonds, real estate, and other property.
If the money is almost certainly going toward college, a 529’s tax treatment is hard to beat. A custodial account fits better when you want the child to have money for purposes beyond education — starting a business, buying a car, building early financial independence. Plenty of families use both: a 529 for education and a smaller custodial account for general-purpose wealth transfer.