Pulling money out of a UTMA account is not itself a taxable event, because the child already owns the assets. What the IRS taxes is the investment income the account generates each year and any capital gains produced when the custodian sells investments to fund a withdrawal. Both get reported under the child’s Social Security number, and once unearned income crosses a threshold the “kiddie tax” pushes the excess up to the parent’s marginal rate. So the practical answer to how UTMA withdrawals are taxed is that you look through the withdrawal to the income and sales behind it, and you apply the rules that fit the beneficiary’s age and total unearned income for the year.
The Income Inside the Account Is Taxed Every Year
Because the minor legally owns everything in a UTMA, all interest, dividends, and capital gains flow through to the child’s tax picture, not the custodian’s. For smaller balances that produces a low bill. For larger ones, Section 1(g) of the Internal Revenue Code closes the door on shifting a serious investment portfolio to a child’s lower bracket.1Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed
For 2026, the kiddie tax runs in three tiers:2Internal Revenue Service. Revenue Procedure 2025-32 – 2026 Adjusted Items
- The first $1,350 of unearned income is tax-free, offset by the dependent’s standard deduction.
- The next $1,350 is taxed at the child’s own rate.
- Anything above $2,700 is taxed at the parent’s marginal rate.
These rules cover any child under 18 at year-end. They also reach 18-year-olds whose earned income doesn’t cover at least half their own support, and full-time students aged 19 through 23 who meet that same support test.1Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed Most UTMA beneficiaries stay inside the kiddie tax net until they finish college or start earning meaningfully on their own.
Who Files and on What Form
The default when the kiddie tax applies is a separate return for the child with Form 8615 attached. That form calculates how much of the child’s unearned income gets bumped up to the parent’s rate.3Internal Revenue Service. 2025 Instructions for Form 8615
There’s a shortcut for smaller accounts. If the child’s only income is interest and dividends (including capital gain distributions), and gross income falls between $1,350 and $13,500 for 2026, a parent can elect to report it directly on their own return using Form 8814 and skip the child’s return entirely.4Internal Revenue Service. Instructions for Form 8814 The trade-off: folding the child’s income into the parent’s return raises the parent’s adjusted gross income, which can chip away at income-based credits and deductions. Once an account throws off more than a few thousand dollars a year, run the numbers both ways before choosing.
Either way, the custodian needs a running record of every dividend, interest deposit, and sale, along with the cost basis of each holding. Reconstructing that years later is painful and sometimes impossible.
When a Withdrawal Triggers Capital Gains
A withdrawal often requires selling something first. That sale is where the tax shows up. Any disposition inside the account while the custodianship is still active gets reported on the beneficiary’s return under their Social Security number, and the kiddie tax may still apply to the resulting gain if the beneficiary hasn’t aged out. The brokerage will issue a Form 1099-B for the proceeds.5Internal Revenue Service. 2026 Instructions for Form 1099-B
Moving cash from the account to a checking account, or writing a check from the UTMA to pay for something on the child’s behalf, doesn’t create a separate taxable event on top of that. The money already belonged to the child. Tax is driven by the sale that produced the cash, not the act of spending it.
Spending Rules That Create Tax Problems
The custodian has discretion to spend UTMA assets for the minor’s use and benefit, but every dollar has to genuinely serve the child’s welfare. This is a fiduciary duty.6Social Security Administration. POMS SI 01120.205 – Uniform Transfers to Minors Act
Permissible spending typically covers items that enrich the child’s life beyond basic necessities: private school tuition, specialized tutoring, summer camp, music lessons, a computer for school. These withdrawals are not a separate taxable event for the custodian or the child.
What custodians cannot do is use UTMA money for expenses they’d owe as a parent or guardian anyway. Ordinary food, housing, clothing, and routine medical care are parental obligations. If the IRS determines that custodial withdrawals were effectively used to satisfy a parental support obligation, those amounts can be treated as income to the custodian rather than a legitimate expense on the child’s behalf. That is the main way a “withdrawal” itself creates a tax exposure.
The line between enrichment and basic support shifts with the family’s financial circumstances. Private school tuition might read as clear enrichment for a middle-income family and as a basic expectation in a wealthy household. Keep detailed records of every withdrawal and be prepared to explain why each expenditure benefited the child beyond routine support.
What Happens Tax-Wise at the Final Transfer
UTMA custodianship has a built-in end date. Once the beneficiary reaches the age set by state law — commonly 21, with state defaults ranging from 18 to as high as 25 or 30 depending on the jurisdiction and the terms of the transfer — the custodian must turn everything over.7Cornell Law School. Uniform Transfers to Minors Act
The physical handover is not a taxable event. No capital gain is triggered by re-titling an account from custodial to individual ownership, because the beneficiary already owned the assets. Cost basis carries over exactly as it was.7Cornell Law School. Uniform Transfers to Minors Act
What matters at the transfer is documentation. The custodian’s final job is to hand the new adult owner the last year’s Forms 1099 for interest, dividends, and capital gains, plus a complete cost basis record for every position that transferred in-kind. Cost basis is the piece most often lost in the handoff. Without records, the IRS default when the beneficiary later sells is to treat the entire sale proceeds as gain, so a missing basis file can turn into a real tax bill years later. Compile it before the transfer date, not after.
After the transfer, the kiddie tax no longer applies to these assets. Future income and gains are taxed at the beneficiary’s own rate, which for most young adults early in their careers runs well below the parent’s rate.
A Note on Contributions Going In
Money moving into a UTMA follows a different rulebook than money coming out. Contributions are irrevocable gifts subject to federal gift tax rules, with a $19,000 per-recipient annual exclusion for 2026; amounts above that require a Form 709 and eat into the donor’s lifetime exemption.8Internal Revenue Service. Gifts and Inheritances9Internal Revenue Service. Instructions for Form 709 Those rules don’t govern withdrawals; they govern deposits, and they attach to the donor, not the child.