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.
Simpler in scope, typically restricted to holding cash, publicly traded securities, and insurance policies.
More flexible, permitting the transfer of a broader range of asset classes, including real estate, partnership interests, patents, and tangible collectibles.
While easy to establish and free of trust administrative costs, UGMA and UTMA accounts contain severe financial and tax disadvantages for high-earning households:
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, unearned income above $2,700 is taxed at the parent’s marginal income tax rate, eliminating the strategy of shifting investment income to a child’s lower tax bracket.
In need-based financial aid formulas (such as the FAFSA), assets held directly by the student (including UGMA/UTMA balances) are assessed at a harsh 20% rate. In contrast, parental assets are assessed at a maximum rate of 5.64%, significantly reducing potential aid eligibility.
Legally, the custodian must transfer full, unrestricted control of the assets to the beneficiary when they reach the age of majority (18 or 21, depending on state law, though some jurisdictions allow UTMA extensions to 25). 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 “Trusts” and section “529 Plans”.