Custodial Accounts (UGMA/UTMA)

A custodial account is a statutory vehicle established under the Uniform Gifts to Minors Act (UGMA) or the Uniform Transfers to Minors Act (UTMA) allowing an adult custodian to manage assets on behalf of a minor. The assets are legally owned by the minor from the moment of contribution, making all transfers irrevocable.

UGMA Accounts

Simpler in scope, typically restricted to holding cash, publicly traded securities, and insurance policies.

UTMA Accounts

More flexible, permitting the transfer of a broader range of asset classes, including real estate, partnership interests, patents, and tangible collectibles.

A transfer into a custodial account is a completed gift of a present interest, so it qualifies for the annual exclusion under IRC §2503(b), “Taxable gifts” — $19,000 per donor per child for 2026 — without the Crummey notice machinery a trust would require. That is the appeal. What follows is the price.

Name someone else as custodian. Do this before anything else on this page. If you fund the account and serve as custodian, you have retained the power to alter enjoyment of the property, and the entire balance is pulled back into your gross estate under IRC §2038, “Revocable transfers” if you die before the child reaches the age of majority. The IRS has held exactly this since Rev. Rul. 57-366, reaffirmed in Rev. Rul. 59-357. The gift still counts against your exclusion; the asset still counts in your estate. Appointing your spouse, a sibling, or an adult child as custodian costs nothing and eliminates the problem entirely, which is why leaving yourself as custodian is the most common and most avoidable mistake in this structure.

Do not spend it on things you are already obliged to pay for. Custodial funds used to discharge a parent’s legal support obligation are taxed directly to the parent, not the child, under IRC §677(b), “Income for benefit of grantor” and Rev. Rul. 56-484. What counts as “support” is a question of state law and includes the ordinary necessities — food, shelter, routine schooling in most states. College tuition generally sits outside it, which is why education is the defensible use. Buying the family car out of the account is not.

Beyond those two traps, custodial accounts carry three structural disadvantages for high-earning households:

The Kiddie Tax Trap

Under IRC §1(g), the Kiddie Tax rules apply to the unearned income (interest, dividends, and capital gains) of dependents under age 19 (or up to age 24 if a full-time student). For 2026 the first $1,350 is offset by the child’s standard deduction, the next $1,350 is taxed at the child’s own rate, and everything above $2,700 is taxed at the parent’s marginal rate — reported on Form 8615, “Tax for Certain Children Who Have Unearned Income”. The bracket-shifting strategy works, but only on the first $2,700 a year.

College Aid Asset Assessment

The FAFSA now computes a Student Aid Index (SAI) to replace the former Expected Family Contribution, but the asset weighting that matters here survived the 2024 overhaul intact. Assets held by the student — and a UGMA/UTMA balance is legally the student’s — are assessed at 20% under 20 U.S.C. §1087oo, against a maximum of 5.64% for parental assets. Realized income inside the account is assessed harder still, at up to 50% above the student’s income protection allowance, on the form filed two years later.

The arithmetic is unforgiving: $200,000 in a custodial account reduces aid eligibility by $40,000 a year, where the same $200,000 in a parent-owned 529 reduces it by $11,280. If need-based aid is realistically in play, the custodial account is the single worst place to hold college money.

Irrevocable Control Concession

The custodian must transfer full, unrestricted control of the assets to the beneficiary at the age of majority — 18 or 21 depending on which age the state’s UTMA statute sets as the default, though a number of states permit extension to 25 if, and only if, the transfer document says so at the moment of funding. California, for instance, allows deferral to 25 under Prob. Code § 3920.5, but you cannot add that election retroactively. For families who have accumulated substantial balances, handing seven-figure sums to an 18-year-old without fiduciary guardrails represents a significant risk.

Consequently, for substantial multi-generational wealth transfers, UGMA/UTMA accounts should be bypassed in favor of Crummey Trusts (which allow gift tax exclusions while retaining control over the age of distribution) or 529 College Savings Plans (which preserve tax-deferred growth and parental control). See section “Irrevocable Life Insurance Trusts (ILITs)” and section “529 Plans”. For the point at which a 529 overtakes a custodial account on after-tax math, see section “Opening one, in practice.”.