UTMA Tax Benefits: How UTMA Accounts Are Taxed in 2026

By Kevin Luu, Co-Founder and Chief Learning Officer. Reviewed on 2026-09-30.

A UTMA account is taxed to the child, not to you, but it is not tax-deferred: dividends, interest and realized gains are taxed every year they occur. For 2026, the first $1,350 of a child’s unearned income is tax-free, the next $1,350 is taxed at the child’s own rate, and everything above $2,700 is taxed at the parents’ rate under the kiddie tax. Withdrawals themselves are not taxed, because the money already belongs to the child.

For a California or Washington household earning $750,000 or more, that means the yearly tax saving from a UTMA is real but modest. The bigger questions are control (the child gets the account at 18, 21 or up to 25), estate planning, and whether a 529 does the same job better.

How UTMA income is taxed federally in 2026

Under the Uniform Transfers to Minors Act, a gift to a custodial account is an irrevocable gift to the child. The custodian (often a parent) manages it, but the child owns it, and the account uses the child’s Social Security number. All income the account earns is the child’s income.

The kiddie tax limits how much of that income can be taxed at the child’s low rates. For 2026 (IRS Rev. Proc. 2025-32):

The kiddie tax applies to children under 18, and to 18-year-olds and full-time students under 24 in some cases, mainly when their earned income does not cover more than half their own support (Form 8615 instructions). The parents’ rate is figured on Form 8615, filed with the child’s return.

One detail matters a lot at your income. The 3.8% Net Investment Income Tax is figured on the child’s own modified AGI against the single-filer threshold of $200,000 (IRS NIIT page). A child with a UTMA almost never reaches that, so income taxed “at the parents’ rate” still usually escapes the 3.8% the parents would pay on the same income.

How California and Washington treat UTMA income

California has its own kiddie tax. For 2025, a child’s unearned income above $2,700 is taxed at the parent’s California rate if that rate is higher, figured on form FTB 3800. California taxes dividends and capital gains as ordinary income, with no lower rate for long-term gains (FTB). So the state benefit is limited to the first $2,700 or so of income each year.

Washington has no individual income tax for 2026 (WA DOR), so dividends in a UTMA carry no state tax. Washington’s 7% capital gains tax only reaches long-term gains above a standard deduction of $278,000 (2025, latest published), which a child’s account will rarely approach (WA DOR capital gains tax). Washington has also enacted a 9.9% income tax on AGI over $1,000,000 starting January 1, 2028. It would reach many parents in our reader group, but a child’s small UTMA income should be far below that line. DOR guidance on the details is still pending.

Worked example: a $950,000 Bay Area household with a $150,000 UTMA

Assumptions (illustrative): married parents in California, a physician and a Genentech scientist, about $950,000 of taxable income. That puts them in the 37% federal bracket (over $768,700 for 2026), the 20% rate on long-term gains (over $613,700), the 3.8% NIIT (MAGI over $250,000), and the 11.3% California bracket ($891,542 to $1,485,906 on the 2025 schedule). Their 7-year-old’s UTMA holds $150,000 in a broad stock index fund yielding 1.5%, all qualified dividends.

Year 1: dividends only

• Dividends: $2,250. That is under $2,700, so no Form 8615 and no FTB 3800.
• Federal: $1,350 is tax-free; the remaining $900 is taxed at the child’s 0% rate on qualified dividends. Federal tax: $0.
• If the parents held the same fund in their own brokerage account: $2,250 x 23.8% (20% + 3.8%) = $535.50 federal, plus $2,250 x 11.3% = about $254 in California.

Holding the fund in the UTMA saves about $790 a year for this child, less a few dollars of California tax the child may owe on the $900. A Washington family with the same numbers saves the $535.50 federal piece only.

Year 5: the custodian sells and realizes a $30,000 long-term gain

• Unearned income: $30,000 gain + $2,250 dividends = $32,250.
• Amount above $2,700 taxed at the parents’ rate: $29,550 x 20% = $5,910 federal. No NIIT, because the child’s MAGI is far below $200,000.
• Same sale in the parents’ account: $32,250 x 23.8% = $7,675.50 federal.
• Federal difference: $1,765.50. That is $1,225.50 from avoiding the 3.8% ($32,250 x 3.8%) plus $540 from the first $2,700 not being taxed at 20%.
• California: the $29,550 is taxed at the parents’ 11.3% rate, about $3,339, nearly the same as if the parents had sold.

The takeaway for a high-income family: a UTMA saves hundreds of dollars a year per child, and somewhat more in a year with a large sale. It does not shift large gains into a low bracket while the kiddie tax applies. Those savings are real, but they are rarely the main reason to open one.

What gets reported, and who files

• The brokerage issues a 1099 in the child’s name and Social Security number.
• A child whose unearned income is more than $1,350 for 2026 generally needs a federal return, with Form 8615 once income passes $2,700 (IRS Pub 501). In California, FTB 3800 applies above $2,700 (2025).
• Parents can instead elect to report the child’s income on their own return using Form 8814, but only if the child’s income is all interest and dividends (including capital gain distributions) and is over $1,350 and under $13,500 for 2026. At your income, the election usually adds the income to your own MAGI and can pull it into the 3.8% NIIT, so a separate return for the child is often cheaper. California has a parallel election on FTB 3803.
• Withdrawals are not reported as income. Spending UTMA money on the child is simply the child’s money being used for the child.

Gift limits: there is no UTMA contribution limit

A common error is to call the gift-tax exclusion a “UTMA limit.” There is no cap on what you can put into a UTMA. For 2026, each donor can give $19,000 per child without filing a gift tax return (Rev. Proc. 2025-32), so two parents each giving from their own funds can give $38,000. If the whole $38,000 comes from one spouse, the couple must file Form 709 to elect gift splitting, even though no tax is due (Form 709 instructions). Larger gifts require Form 709 and use part of the donor’s $15,000,000 lifetime exclusion for 2026. The same exclusion applies whether the gift goes to a UTMA, a 529 or the child directly.

Giving appreciated stock, such as vested RSU shares, keeps your cost basis. While the kiddie tax applies, a later sale is still taxed largely at your federal capital gains rate, so this mostly helps with the 3.8% NIIT and with gains realized after the child ages out of the kiddie tax.

The decisions that matter more than the tax

When your child takes control

The account becomes the child’s outright at the age set by state law, and the custodian cannot stop it. In California, the default is 18; a lifetime gift can delay it to no later than 21, and a transfer by will or trust to no later than 25, if the delay is written into the transfer (Cal. Probate Code 3920.5). In Washington, gifts end at 21, and the transferor can extend to 25 in the original custodian nomination (RCW 11.114.200). The age you write in at opening is often the biggest decision attached to the account.

Who should be custodian

If the parent who funded the account is also the custodian and dies before the child takes control, the account can be pulled back into that parent’s taxable estate, because the custodian holds power over the gift (26 U.S.C. 2038). The federal $15,000,000 exclusion for 2026 makes this a non-issue for many families, but Washington’s estate tax exclusion is only $3,000,000 for deaths from July 1, 2026 (WA DOR). Washington families with large estates often name someone other than the donor as custodian, and ask their estate attorney how gift splitting affects that choice.

UTMA or 529

For education money, a 529 usually beats a UTMA for this reader: tax-free growth, and the parent keeps control. A UTMA fits money meant for a broader purpose, such as a first home, a business or a gap year, when you are comfortable with the child owning it outright at the transfer age. Federal financial aid is rarely in play at this income, but note that a UTMA counts as the student’s asset on the FAFSA.

Common mistakes

• Treating the UTMA like your own account. Using it for support costs parents legally owe, or “borrowing” from it, can cause legal and tax problems. Ask your CPA before any unusual withdrawal.
• Forgetting the child’s return. Once unearned income passes $1,350 (2026), the child usually needs to file.
• Holding high-turnover funds. Every distribution is taxable each year; a low-turnover index fund keeps income under $2,700 longer.
• Leaving the transfer age at the default without deciding. In California, that means the child controls everything at 18.

What to document for your kids

A UTMA is a decision your child will one day see the result of, without the reasoning. Write a one-page note: why you opened it, what you hoped it would be used for, why you chose the transfer age, and how you thought about spending it. As Kevin Luu puts it: “Your kids will inherit your money. Will they inherit your judgment?” Families who work with our Age Five Wealth Education program keep these notes in their FamilyKnowledge® Library so the account arrives with context at 21, not as a surprise.

Frequently asked questions

Are UTMA accounts tax-deferred?

No. Unlike a 529 or a Roth IRA, a UTMA has no tax shelter. Dividends, interest and realized gains are taxed in the year they occur, to the child, under the kiddie tax rules. The benefit comes from the child’s low brackets on the first $2,700 of unearned income for 2026 and from the child’s own $200,000 NIIT threshold, not from deferral.

Are withdrawals from a UTMA taxable?

No. A withdrawal spent for the child’s benefit is not income, because the assets already belong to the child and the income was taxed as it was earned. Selling investments to fund a withdrawal can create a capital gain, and that gain is taxable to the child in the year of the sale. See our guide to UTMA withdrawal tax rules.

Do I pay tax on my child’s UTMA?

Usually not directly. The child owes the tax and files the return, even though the amount above $2,700 for 2026 is figured at your rate. You pay it on your own return only if you elect Form 8814, which is limited to children with interest and dividend income between $1,350 and $13,500 for 2026. For how taxable accounts work more generally, see taxes on a brokerage account you don’t sell.

Next step

Pull last year’s 1099 for each child’s UTMA and check two things: whether income passed $1,350 (a return was needed) and what transfer age the account was opened with. If either surprises you, our tax management and estate planning pages explain how an Age Five Family Office™ handles these accounts alongside the 529s and trusts. This is general education, and the right move depends on your family’s full picture.

Written by

Kevin Luu

Co-Founder and Chief Learning Officer, Bright Advisers

Kevin has advised high-income W-2 tech and biotech families since 2015, and leads the education-first Age Five Family Office from Brea, California.

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