UTMA Withdrawal Tax Rules: Kiddie Tax, Capital Gains, and Forms

Taking money out of a Uniform Transfers to Minors Act account is not itself a taxable event. The UTMA withdrawal tax rules that matter run in the background: the account’s yearly interest, dividends, and capital gains are taxed to the child every year they occur, and selling appreciated securities inside the account produces a capital gain measured from the donor’s original cost basis. Once those earnings have been reported and taxed, pulling the cash out later adds no new tax.

Why the Withdrawal Itself Isn’t Taxed

A UTMA account legally belongs to the child from the moment assets are contributed. The custodian manages the money, but the child is the owner. Because of that, moving cash out of the account, whether the custodian spends it for the child’s benefit or the adult beneficiary takes it after the account transfers, doesn’t trigger income tax. UTMA accounts aren’t tax-deferred vehicles like IRAs or 401(k)s, so there’s no deferred income waiting to be recognized on withdrawal and no early-withdrawal penalty at any age.

The tax has already been handled, or will be handled, at two other points: on the earnings each year, and on any sale of appreciated assets.

How the Account’s Earnings Are Taxed Each Year

Interest, dividends, and capital gains from sales inside the account are taxed to the child each year under a tiered structure commonly called the Kiddie Tax. For the 2026 tax year:

  • The first $1,350 of unearned income is covered by the dependent’s standard deduction and isn’t taxed.
  • The next $1,350 is taxed at the child’s own rate, typically the lowest bracket.
  • Everything above $2,700 is taxed at the parent’s marginal rate.

The $1,350 figure comes from the standard deduction limit for dependents under IRC Section 63(c)(5), and the $2,700 Kiddie Tax trigger is twice that amount.1Internal Revenue Service. Revenue Procedure 2025-32 The tax itself is set out in IRC Section 1(g), which directs that the child’s net unearned income above the threshold be taxed as though it were part of the parent’s return.2Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed

Every dollar of investment income that gets reported and taxed each year becomes part of the account’s after-tax balance. That’s the mechanism that makes future withdrawals tax-free: the earnings have already been through the system. Skipping the annual reporting doesn’t just create IRS trouble now, it also muddles the record of what has and hasn’t been taxed when the beneficiary later takes control.

When the Kiddie Tax Stops Applying

The Kiddie Tax doesn’t switch off at 18. It applies to a child who, at year-end, is:

  • Under age 18;
  • Age 18, if the child’s earned income didn’t cover more than half of their own support; or
  • Age 19 through 23 and a full-time student, if the child’s earned income didn’t cover more than half of their own support.

At least one parent must be alive at the end of the tax year, and the child cannot file a joint return.3Internal Revenue Service. Topic No. 553, Tax on a Childs Investment and Other Unearned Income

This creates a real complication for UTMA planning. In many states the account transfers to the beneficiary at 21. A 21-year-old full-time student who takes control of the account and sells investments to pay tuition can still see gains above the threshold taxed at the parent’s rate. The Kiddie Tax doesn’t care that the beneficiary is now the legal owner; it looks only at age, student status, and support.4Internal Revenue Service. 2025 Instructions for Form 8615

What Happens When the Account Transfers

UTMA custodianship ends at the age set by state law and the account’s terms. The typical age is 21, though it ranges from 18 to 25 depending on the state, with some states allowing a later age if the donor specified one.

The transfer itself is not a taxable event. Nothing is sold, no gain is realized, and neither the custodian nor the beneficiary owes tax because of the transfer. The beneficiary has been the legal owner all along; the custodian’s management role simply ends.

What shifts is reporting responsibility. From the transfer forward, the beneficiary reports all account income on their own return. If the beneficiary still meets the Kiddie Tax age rules, the parent’s rate may still apply to unearned income above the threshold. Otherwise, everything is taxed at the beneficiary’s own rates.

Capital Gains When Assets Are Sold

The tax bill on a UTMA withdrawal, when there is one, almost always comes from selling appreciated securities to fund it. If a stock was worth $5,000 when contributed and is now worth $12,000, selling produces a $7,000 capital gain that must be reported. The financial institution issues Form 1099-B, and the gain goes on the tax return whether or not the cash is actually pulled from the account.

The basis used to figure that gain carries over from the donor. If a parent bought the stock for $3,000 and later contributed it to the child’s UTMA account, the child’s basis is $3,000, not the market value on the gift date.5Internal Revenue Service. Publication 551 – Basis of Assets The holding period carries over too, so a stock the donor held for years before contributing qualifies for long-term rates when the beneficiary sells.

There’s one wrinkle. If the stock was worth less than the donor’s basis at the time of the gift, a dual-basis rule kicks in:

  • If the beneficiary sells at a gain, use the donor’s original basis.
  • If the beneficiary sells at a loss, use the fair market value on the gift date.
  • If the sale price falls between those two figures, no gain or loss is recognized.

The rule keeps donors from shifting built-in losses to their children.5Internal Revenue Service. Publication 551 – Basis of Assets

Brokers are generally required to track cost basis and report it on Form 1099-B, but families should keep their own records of what was contributed and at what price. Older accounts and transfers between institutions often leave gaps.

Custodian Withdrawals Before the Child Reaches the Transfer Age

Custodians can withdraw from a UTMA account before the transfer age as long as the money is spent for the child’s benefit. Education, medical costs, and similar needs qualify; covering a parent’s own obligations, including basic child support the parent already owes, does not.

Tax-wise, these withdrawals don’t add anything new. The account’s earnings are taxed to the child each year under the Kiddie Tax rules whether or not anything is withdrawn. If securities are sold to raise cash, the resulting capital gain is taxed to the child in the year of sale. The act of moving the cash out and spending it isn’t separately taxable.

The Forms Families Actually File

The institution holding the account issues Forms 1099 each year under the child’s Social Security Number: 1099-INT for interest, 1099-DIV for dividends, and 1099-B for sale proceeds.

When a child’s unearned income exceeds $2,700, the child files their own return and attaches Form 8615 to figure the Kiddie Tax.4Internal Revenue Service. 2025 Instructions for Form 8615 For smaller accounts there’s a shortcut: if the child’s income is only interest and dividends and totals less than $13,500, the parents can elect to report it on their own return using Form 8814 instead of filing a return for the child.6Internal Revenue Service. 2025 Instructions for Form 8814 The election is simpler, but running the numbers both ways is worth the time; putting the income on the parents’ return can push them into a higher bracket or affect other deductions.

Once the beneficiary is an adult managing the account themselves, capital gains and losses go on Form 8949 and flow into Schedule D. The withdrawal of principal and previously taxed earnings appears on no tax form, which is exactly what a tax-free event looks like on paper.

Two Adjacent Issues Worth Knowing About

Two things sit outside the withdrawal tax rules but often surface in the same conversation.

The first is an estate tax trap. If the person who contributed the assets also serves as custodian and dies before the account transfers, the full account value can be pulled back into the donor’s taxable estate. The IRS treats the custodian’s power over the account as a retained power to alter or revoke the gift under IRC Section 2038.7Office of the Law Revision Counsel. 26 US Code 2038 – Revocable Transfers Naming someone other than the donor as custodian avoids it.

The second is financial aid. On the FAFSA, UTMA assets are treated as the student’s, not the parents’. Student assets are assessed at 20% of value in the expected family contribution, versus roughly 5.64% for parent-owned assets. A $50,000 UTMA balance reduces aid eligibility by about $10,000 per year, compared with about $2,800 for the same money in a parent’s account. Realized capital gains from sales inside the UTMA also count as student income on the FAFSA, which reduces aid eligibility further, so the timing of any large sale before a FAFSA filing is worth thinking through.