Direct answer: During the teen years (ages 10-19), two major investment decisions become available for the first time: the Roth IRA once earned income exists, and the drawdown of 529 education savings as college approaches. UGMA/UTMA accounts continue on a high-equity allocation because the retirement horizon remains 45-55 years away. The 2026 Roth IRA contribution limit is the lesser of earned income or $7,000. A 529 plan should shift toward conservative assets as college gets within 2-3 years, and most age-based portfolios do this automatically.
Investing in the Teen Years: First Earnings, First Accounts and First Real Risk Decisions
Key Takeaways
- The Roth IRA becomes available once a teen has documented earned income. A single year of Roth contributions at age 15 has roughly 50 years to compound tax-free before traditional retirement age.
- The 2026 annual Roth IRA contribution limit is the lesser of the teen's earned income or $7,000. A parent or guardian holds the custodial account until the teen reaches majority.
- A 529 plan with college 1-2 years away should be in a very conservative allocation. Market losses at that stage cannot be recovered before tuition is due.
- UGMA/UTMA accounts remain high-equity. A teen's retirement is still 45-55 years away, and the risk capacity for long-horizon assets is maximum.
- The kiddie tax (unearned income above $2,700 taxed at the parent's rate in 2026) applies through age 18 for most teens and through age 24 for full-time student dependents. This limits the tax advantage of UGMA/UTMA accounts but does not eliminate them.
What Changes During the Teen Years
The young children stage (ages 1-9) involves only parent-controlled accounts with no earned income considerations. The teen years introduce two structural changes that reshape the investment decision:
Earned income and the Roth IRA opening
A minor with earned income can contribute to a custodial Roth IRA up to the lesser of their earned income or the annual IRA contribution limit. For 2026, the limit is $7,000. Earned income includes W-2 wages, net self-employment income from documented work (babysitting, lawn care, tutoring, agricultural work), and certain other compensation. Gifts, allowances, investment income, and parental financial transfers do not count as earned income for this purpose.
The Roth IRA is typically the first-priority investment account once earned income exists, because contributions grow tax-free and withdrawals of contributions (not earnings) can be made at any time without penalty. A teen who contributes the maximum for three summers at ages 15-17 has established a meaningful tax-advantaged base before college.
529 plan drawdown planning
A 529 plan funded for a child born in 2008 (now 17-18) is approaching its active use phase. Key steps for families in this window:
- Verify the current allocation. Many age-based 529 portfolios shift to a conservative blend (short-term bonds, money market, stable value) when enrollment is 1-2 years away. Confirm this has happened; if not, rebalance manually.
- Understand qualified expenses. 529 funds cover tuition, fees, books, supplies, and room and board at eligible institutions. Off-campus housing is covered up to the school's cost-of-attendance figure. Computers and internet service are covered if used primarily for school.
- Know the financial aid interaction. A parent-owned 529 is assessed at a maximum of 5.64% in the federal financial aid formula, which is a lower rate than student-owned assets. Grandparent-owned 529 plans have their own reporting rules that have changed in recent years.
UGMA/UTMA: long-horizon accounts continue at high equity
A UGMA/UTMA account funded for a teen with a 50-year retirement runway should remain in a high-equity allocation. The purpose of this account is long-term wealth building, not near-term education funding. Reducing equity exposure because "the teen is growing up" would be a behavioral error: the retirement horizon, not the teen's age, determines the appropriate risk level for this account.
One consideration: UGMA/UTMA assets legally belong to the minor and are assessed at up to 20% in the FAFSA formula, versus a lower rate for parent-owned assets. Families expecting significant need-based financial aid should model this impact.
The kiddie tax
Unearned income above $2,700 (2026 threshold) for a minor under age 19, or under age 24 if a full-time student dependent, is taxed at the parent's marginal rate. This reduces but does not eliminate the benefit of UGMA/UTMA investing during the teen years. Capital gains held long enough and eventually realized after the child becomes independent fall outside the kiddie tax. For most families with moderate UGMA/UTMA balances, the kiddie tax impact is small relative to the long-run compounding benefit.
Investment Account Summary for the Teen Years
| Account | Earned income required? | Purpose | 2026 annual limit |
|---|---|---|---|
| Custodial Roth IRA | Yes | Long-term retirement | Lesser of earned income or $7,000 |
| 529 plan | No | Education expenses | No annual limit (gift tax rules apply above $19,000/year per contributor) |
| UGMA/UTMA | No | Any purpose (long-term) | No investment limit (gift tax rules apply) |
| Taxable brokerage (teen's own) | No | Any purpose | No limit |
Frequently Asked Questions
When can a teen open a Roth IRA?
A teen can open a custodial Roth IRA as soon as they have documented earned income. Earned income includes wages from a W-2 job, net self-employment income (babysitting, lawn mowing, tutoring, freelance work), and certain other compensation. Allowances and gifts do not count. The 2026 annual contribution limit is the lesser of the teen's earned income for the year or $7,000. A parent or guardian opens and manages the account as custodian until the teen reaches the age of majority in their state.
How should a 529 plan be allocated when college is 2-3 years away?
When college is 2-3 years away, the 529 plan should be in a conservative allocation with limited equity exposure. A 20%-30% equity position at 3 years out is a common guideline; at 1-2 years out, many families shift to a near-cash allocation (money market, short-term bonds, stable value) to eliminate the risk of a market decline reducing funds needed imminently. Most age-based 529 portfolios handle this shift automatically based on the projected enrollment year.
Does a UGMA/UTMA account affect college financial aid?
Yes. UGMA/UTMA assets owned by the student are assessed at up to 20% in the federal financial aid formula (FAFSA), compared to parent assets assessed at a lower rate. This means a UGMA/UTMA account in the teen's name can reduce need-based financial aid eligibility more than an equivalent amount in a parent-owned 529 plan. Families expecting to apply for need-based aid should understand this impact before contributing heavily to a student-owned custodial account.
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