Kids' Accounts by State: UTMA Transfer Age & 529 Tax Rules

Two of the rules that matter most for a kid’s accounts aren’t federal — they’re set by your state. When a custodial account transfers to your child, and how your state taxes a 529 plan, both change the moment you cross a state line. Pick your state below to see both in one place.

What the two numbers mean

A custodial account — a UTMA (Uniform Transfers to Minors Act) or the older UGMA (Uniform Gifts to Minors Act) — is managed by a parent until the child reaches a set age, then becomes fully the child’s. That age is written into state law. A UGMA usually transfers at 18; a UTMA at 21 in most states, 18 in a handful, and 22 in Louisiana. Several states let you specify a later age when the account is set up — see the full state-by-state table for the details and the extension rules.

A 529 plan grows tax-free at the federal level for qualified education expenses. On top of that, more than 30 states offer their own income-tax deduction or credit for contributions — usually only for the in-state plan, but nine “tax-parity” states give the break for any state’s plan. Four states with an income tax offer no 529 break at all, and nine states levy no income tax to begin with. The catch families miss is that a withdrawal that’s federally tax-free isn’t automatically tax-free in your state. The 529 state tax treatment guide walks through exactly how to check your state’s rules before you contribute or withdraw.

Every state, side by side

The full picture for all 50 states and D.C. — the custodial-account transfer ages and each state’s 529 income-tax benefit. Tap any state for its dedicated page.

UTMA/UGMA ages: default state-law transfer ages (titling can override). 529 amounts are the maximum annual state income-tax benefit, from J.P. Morgan Asset Management’s 529 tax-benefit map (Jan 2026). “Any state’s plan” marks the nine tax-parity states. Deductions may be recaptured on non-qualified withdrawals. General education, not tax advice — confirm with your plan or a tax professional.

Why it’s worth knowing early

The transfer age is the single biggest thing to plan for on a custodial account: on that date the balance is unconditionally your child’s, with no approval from you and no way to reverse it. Knowing the date years ahead — and giving your kid visibility into the account long before it arrives — is what turns the handoff into context instead of a windfall shock. On the 529 side, knowing your state’s treatment before a withdrawal is what keeps a federally clean move from turning into a state tax surprise.

Frequently asked questions

At what age does a custodial account transfer to my child?

It depends on your state and the account type. A UGMA usually transfers at 18. A UTMA transfers at 21 in most states, at 18 in a handful (including California, Kentucky, Maine, Maryland, Michigan, Nevada, Oklahoma, South Dakota, and Washington, D.C.), and at 22 in Louisiana. Several states let you specify a later age — commonly up to 25, and as late as 30 in Wyoming. Select your state above for its exact age.

Which states have no 529 state income tax to worry about?

Nine states levy no individual income tax at all: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. In those states there's no 529 state income-tax deduction to claim, and 529 withdrawals aren't exposed to state income tax.

Is a 529 withdrawal that's federally tax-free also tax-free in my state?

Not automatically. Your state writes its own definition of a qualified 529 expense, and when it doesn't match the federal one, the earnings portion of the withdrawal can be subject to state income tax — and a few states recapture a prior deduction on non-qualified withdrawals. Your contributions are never at risk; only the growth on top can be exposed.

Can I deduct contributions to another state's 529 plan?

Usually only if you contribute to your own state's plan. But nine 'tax-parity' states give the deduction for contributions to any state's 529 plan: Arizona, Arkansas, Kansas, Maine, Minnesota, Missouri, Montana, Ohio, and Pennsylvania. Separately, four states that have an income tax offer no 529 deduction or credit at all — California, Hawaii, Kentucky, and North Carolina — and Indiana, Oregon, Utah, and Vermont give a tax credit rather than a deduction.

Can the custodial-account transfer age be changed?

In some states, yes — if a later age is specified when the account is created. If it isn't titled that way, the state's default applies. Because titling can override the default, confirm how your account was actually set up with your custodian rather than relying on the default alone.