Custodial accounts and gift tax: what counts as a gift — and what happens at 18 or 21

The short answer

The gift happens once — when you put the money in, not when the child gets control. Funding the account is a completed gift to the child that year, covered by the annual gift-tax exclusion ($19,000 per child in 2026). When the account later transfers to the child at the age your state sets, that hand-off is not a second gift and triggers no gift tax. So there's really only one gift-tax moment to think about: the contribution.

What UTMA and UGMA accounts are

A custodial account holds money or investments in a child's name, managed by an adult custodian until the child reaches adulthood. There are two flavors:

• A UGMA (Uniform Gifts to Minors Act) account holds financial assets — cash, stocks, bonds, and mutual funds.
• A UTMA (Uniform Transfers to Minors Act) account holds all of that plus other property, like real estate. UTMA is the more common today and is available in nearly every state.

Either way, contributions are irrevocable: once the money is in, it legally belongs to the child. You can't take it back, and you can't redirect it to another kid.

The one gift: funding the account

Because the money becomes the child's the moment you contribute, each contribution is a gift to that child. The good news is that ordinary contributions fit neatly under the annual exclusion:

• In 2026 you can put up to $19,000 per child into a custodial account with no gift-tax return at all.
• A married couple who split gifts can do $38,000 per child.

Go above that for one child in a single year and you'll file a Form 709 — but filing almost never means paying. The overage simply counts against your lifetime exemption (about $15 million per person in 2026), which the vast majority of families never come close to using.

The hand-off at 18 or 21 is not a second gift

This is the part that confuses people. When the child reaches the age your state sets, control of the account passes to them automatically — and many parents assume that transfer is a fresh taxable gift. It isn't. The gift was completed back when you funded the account; the hand-off is simply the custodianship ending. No gift-tax return, no gift tax, nothing to report at transfer.

What does vary is the age. Most states hand the account over at 18 or 21; some allow it to run to 25 if the account was set up that way. (There's a technical distinction between the "age of majority" and the UTMA "age of termination" — your custodian and your state's statute control which applies.) It's worth knowing, because once that age hits, the money is legally the child's to use however they want — tuition, a car, or anything else.

The other tax to know: the kiddie tax

Gift tax is about moving money in. A separate set of rules — the "kiddie tax" — covers what the account earns. In 2026, roughly the first $1,350 of a child's investment income is tax-free, the next ~$1,350 is taxed at the child's own (low) rate, and earnings above about $2,700 are taxed at the parent's marginal rate. These thresholds adjust each year, so confirm the current figures at filing time.

Custodial account vs. 529

If the goal is specifically college, a 529 plan usually wins on taxes: qualified withdrawals are tax-free, many states add a deduction or credit, and it counts far less against financial aid — a parent-owned 529 is assessed at up to ~5.64% on the FAFSA, versus up to 20% for a custodial account, which is the student's own asset. A custodial account's edge is flexibility: the money can go to anything that benefits the child, with no education-only strings and no penalties. Plenty of families use both — a 529 for school, a custodial account for everything else.

Frequently asked

This guide is general information, not tax or legal advice. Gift, kiddie-tax, and state custodial-age rules change; confirm current figures with the IRS and consult your CPA or attorney before acting.