Written By Meagan McGuire, CFP®, ChFC®, CSLP®
Updated on July 31, 2026
You want to put money away for your kid, and three account names keep coming up: the 529 plan, the Roth IRA and the UTMA, short for Uniform Transfers to Minors Act. They get talked about like alternatives to each other. They're really answers to three different questions.
A lot of us were never taught any of this. Money stayed a hush-hush topic growing up, and now you're expected to pick a custodial account structure while also funding retirement, running a practice and paying down six figures of student debt. So let's take these one at a time and look at what each account actually does for your child.
Which account is best for building your child's wealth?
There's no single best account, and plenty of families use two of the three at once. The right choice comes down to three questions: what will the money be used for, when does your child get control of it and how much tax benefit are you willing to trade restrictions for?
| Account | Best for | Tax treatment | When your child controls it |
|---|---|---|---|
| 529 plan | Families reasonably confident their child is headed to college | After-tax in, tax-free growth, tax-free qualified withdrawals | You stay the account owner and can change the beneficiary |
| Roth IRA | A child with legitimate earned income | After-tax in, tax-free growth, tax-free withdrawals in retirement | At the age of majority, when a custodial Roth converts to their name |
| UTMA | Goals that don't fit an education box | Taxable account subject to kiddie tax rules | At the age of majority: 18, 19 or 21 depending on your state |
A 529 plan works best when college is the likely path
A 529 plan is a state-sponsored education savings account funded with after-tax dollars, where the money grows tax-free and withdrawals are tax-free as long as they cover qualified education expenses. Many states also hand you a state income tax deduction or credit for contributing, which is a nice short-term bonus for the person writing the checks.
The bigger advantage is structural. The money is earmarked for education, it stays invested and it can't turn into a car at 18 or a trip somewhere fun. For a lot of parents, that restriction is the reason to use one.
Beginning with 2026 distributions, the federal limit for K-12 expenses doubled to $20,000 per beneficiary per year, and 529 funds can now cover postsecondary credentialing programs like plumbing, cosmetology and commercial driver's license training, along with professional licensing costs.
Leftover 529 money has three exits
Say your child gets a scholarship or picks a cheaper school and you're sitting on more than you need. That's a good problem to have, and you have options:
- Roll unused funds into a Roth IRA for the beneficiary, up to $35,000 over their lifetime.
- Change the beneficiary to another family member.
- Pull the money out and pay ordinary income tax plus a 10% penalty on the earnings portion, which stings but isn't catastrophic on a balance that's been compounding for 18 years.
The Roth rollover has a few conditions. The 529 must have been open for at least 15 years, contributions made within the last five years aren’t eligible, and each year’s rollover counts toward the beneficiary’s annual Roth IRA contribution limit, which is $7,500 in 2026.
Can your child contribute to a Roth IRA?
Only if they have earned income. Age alone doesn’t disqualify a child, but birthday money, allowances, and gifts don’t count. A teenager with a legitimate part-time job can contribute, and so can a younger child if they’re paid for real, marketable work. The child Roth IRA contribution limit is the lesser of their earned income or the annual IRA limit, which is $7,500 for 2026.
Run the numbers, and you see why this gets people excited. Contributing $7,500 a year from age 14 through 18 puts $37,500 into the account. At a 7% average annual return, that could grow to roughly $43,000 by the time they graduate high school and well over $1 million by their late 60s, with qualified withdrawals generally tax-free.
The wages have to be real, documented and defendable
This strategy only works when the pay is reasonable for the work performed and documented the same way you’d document any other employee. Inflated wages or work that isn't actually happening creates an audit problem.
Parents often get caught up in the mechanics of making it work that the strategy becomes a source of stress. If that sounds likely and your child is college-bound anyway, a 529 plan yields a strong result without the recordkeeping burden.
A UTMA trades tax benefits for flexibility
A UTMA account is a standard taxable brokerage account held in your child's name with an adult, usually a parent, serving as custodian. There are no income requirements, no contribution limits, and no restrictions on how the money can be used — college, trade school, a down payment, or startup capital are all possible uses.
For 2026, the first $1,350 of a child’s unearned income is generally tax-free, the next $1,350 is taxed at the child’s rate, and unearned income above $2,700 is generally taxed at the parent’s rate under the kiddie tax rules. That makes UTMA the least tax-efficient of the three options because there’s no deduction going in and no tax-free growth.
Your child gets full control on a specific birthday
The moment your child reaches the age of majority in your state, which is 18, 19 or 21 depending on where you live, the money is legally theirs. A UTMA fits families who want maximum flexibility and genuinely trust their child with a lump sum at that age.
Weigh use, access and tax treatment together
Three things decide which account fits your family: how the money will be used, when your child gets access to it and what tax benefit you get in exchange for the restrictions.
If education is the likely path, the 529 wins on tax efficiency and keeps the money pointed at its purpose. If your child has legitimate earned income and you're willing to keep clean payroll records, the Roth IRA is tough to beat over a 50-year horizon. If you want the money available for anything and you're comfortable handing over control in your child's late teens, the UTMA is the flexible option.
Most families don't have to choose just one. The mix depends on your cash flow, your state's tax rules and how much control you want to keep.
If you're a practice owner weighing whether to put your child on payroll alongside your own retirement, tax and student loan strategy, that's exactly the kind of tradeoff we work through with clients at SLP Wealth. Book a consultation and bring your actual numbers.
