A UGMA account, created under the Uniform Gifts to Minors Act, works by letting an adult give cash or securities to a child through a custodial arrangement instead of a formal trust. The minor legally owns the assets the moment the gift is made, but a custodian invests and spends the money on the child’s behalf until the child reaches the age of majority. The gift is irrevocable, earnings are taxed to the child under special rules, and when the child comes of age the account converts to their name with no strings attached.
The Three Roles and the One-Way Door
Every UGMA account has a donor who contributes the assets, a custodian who manages them, and a minor beneficiary who owns them. The donor and custodian are often the same person, typically a parent opening the account for a child. Ownership shifts to the minor immediately and permanently. The custodian holds a fiduciary duty to invest and spend the money solely for the child’s benefit, not to cover the custodian’s own obligations or lifestyle.
The irrevocable transfer is the feature that catches most people off guard. You cannot take the money back, redirect it to another child, or change course if your circumstances shift. Earmarking money in your own savings account for a child’s future keeps you in control; funding a UGMA does not. The assets belong to the child from day one, even though the child has no access until adulthood.
What You Can Put In
UGMA accounts are limited to financial assets: cash, publicly traded stocks, bonds, mutual funds, and in some cases insurance policies or annuities. Real estate, fine art, patents, and other tangible property cannot be held in a UGMA. That restriction is the main practical difference from the Uniform Transfers to Minors Act (UTMA), which most states have adopted and which allows a broader range of property. UGMA accounts remain widely available and are still the default custodial account at many brokerages.
Opening and Funding the Account
Most major brokerages and banks offer UGMA accounts, and the paperwork resembles any other investment account. You will need the minor’s full legal name, date of birth, and Social Security number, along with the custodian’s name, Social Security number, address, and government-issued photo ID. The financial institution uses the minor’s Social Security number for tax reporting because the child is the legal owner.
Most firms let you complete the application online. After approval, you link a bank account and fund the custodial account by electronic transfer. The account is typically ready for investing within a few business days of the initial deposit clearing. There is no legal minimum contribution, and some brokerages have dropped their own minimums entirely, so you can start small and add to it over time.
Gift Tax and Contribution Rules
There is no cap on how much you can put into a UGMA account in a year, but contributions above the annual gift tax exclusion trigger a reporting requirement. For 2025, that exclusion is $19,000 per donor, per recipient, and the IRS adjusts it annually for inflation. Give more than the exclusion in a single year and you need to file IRS Form 709, though you likely will not owe actual gift tax unless your cumulative lifetime gifts pass the basic exclusion amount.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Married couples can each give up to the exclusion amount to the same child, effectively doubling the tax-free contribution in a given year. Contributions are made with after-tax dollars; there is no income tax deduction for funding a UGMA.
How Earnings Get Taxed
Investment earnings inside a UGMA account belong to the child, and the IRS taxes them under the “kiddie tax” framework in Internal Revenue Code Section 1(g).2Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed Congress designed these rules so that parents in high brackets could not simply park investment income in a child’s name to have it taxed lightly. A child’s unearned income splits into three tiers:
- The first slice, equal to the dependent’s standard deduction, is not taxed at all. For 2025, that is $1,350.
- The next equal slice is taxed at the child’s own rate, which is usually low.
- Anything above twice the threshold, $2,700 for 2025, is taxed at the parent’s marginal rate.3Internal Revenue Service. Topic No. 553 – Tax on a Child’s Investment and Other Unearned Income
The IRS adjusts these thresholds annually for inflation. For an account throwing off modest dividends or interest, the kiddie tax rarely bites. If the account has grown substantially and generates significant capital gains or dividends, the parent’s higher rate can take a real cut.
Who Files
If the child’s unearned income exceeds the filing threshold, the child can file their own return and use Form 8615 to calculate the kiddie tax.2Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed If the child’s income consists only of interest and dividends and falls within certain limits, the parents can instead elect to report it on their own return using Form 8814.4Internal Revenue Service. About Form 8814 – Parents Election to Report Childs Interest and Dividends The second option is simpler but can result in a slightly higher tax bill by pushing the parent into a higher bracket or affecting income-dependent calculations on the parent’s return. Either way, the tax filings tied to the account use the child’s Social Security number.
What the Custodian Can Spend the Money On
The custodian has broad authority to buy, sell, and reinvest the assets. Withdrawals are permitted, but only for expenses that genuinely benefit the child. Education costs, medical bills, extracurriculars, and summer camp fees are all common uses. Every dollar spent must serve the child’s interests.
Where custodians run into trouble is using UGMA funds for things they are already legally obligated to provide. A parent who pulls from the custodial account to pay for basic food and shelter is using the child’s money to cover their own duties, and that can create legal liability. The line between “benefit of the child” and “parental obligation” is not always obvious and varies by state, but the underlying principle holds: you are managing someone else’s money, and that someone is a minor who cannot yet object.
When the Child Takes Over
The custodianship ends when the beneficiary reaches the age of majority, which is 18 in some states and 21 in others.5Social Security Administration. SI SF01120.205 Uniform Gifts to Minors Act (UGMA) and Uniform Transfers to Minors Act (UTMA) – Age of Majority At that point, the beneficiary contacts the financial institution and the custodial account converts to an individual account in their name. The former custodian loses all authority over the assets.
There is no legal mechanism to extend custodianship, delay the transfer, or impose conditions on how the money gets spent. An 18-year-old who inherits a $100,000 UGMA account can spend every dollar on a sports car the day the account converts, and the former custodian has no recourse. That absence of ongoing control is the single biggest drawback of a UGMA account.
The Financial Aid Trade-Off
UGMA balances can quietly cost families money at the college financial aid stage. On the FAFSA, custodial account balances are reported as the student’s assets, because the minor is the legal owner. The federal aid formula assesses student assets at 20 percent, so one-fifth of the balance is expected to go toward college costs each year. Assets held in a parent’s name are assessed at no more than about 5.64 percent.
The math matters. A $50,000 UGMA account reduces a student’s aid eligibility by roughly $10,000 per year, while the same $50,000 in a parent’s investment account would reduce it by about $2,800. For families counting on need-based aid, a large custodial balance can wipe out much of the tax benefit the account provided over the years.
When a 529 or a Trust Fits Better
If education is the specific goal, a 529 plan keeps the parent as account owner, counts as a parental asset on the FAFSA at the lower rate, and grows tax-free when used for qualified education expenses. Non-qualified withdrawals from a 529 trigger taxes and a 10 percent penalty on earnings, so the flexibility is narrower than a UGMA’s.
If the amount is large and you want guardrails past age 18, a formal trust lets you set conditions on distributions in a way a UGMA cannot. For modest amounts and a straightforward goal, the simplicity and low cost of a UGMA account are the reason it exists in the first place.