How to Open a Custodial Roth IRA for Your Kids

⏱ 11 min read

If your teenager just earned their first paycheck lifeguarding at the pool or bagging groceries, you’re sitting on one of the most underused wealth-building opportunities in personal finance: the custodial Roth IRA. Thanks to decades of compounding, a few thousand dollars invested at age 15 can grow into hundreds of thousands of dollars by retirement — completely tax-free. Yet most parents never set one up, either because they don’t know it exists or assume it’s too complicated.

It isn’t. Opening a custodial Roth IRA for your kids in the US takes less than 30 minutes with the right brokerage, and the tax and compounding benefits are extraordinary. This guide walks you through exactly how to open a custodial Roth IRA for your kids in the US — from eligibility rules and required documentation to contribution limits, investment choices, and the exact paperwork you’ll need. We’ll use a real example with dollar figures so you can see precisely how this strategy plays out over time. By the end, you’ll know exactly what to do this week to get your child’s account open and funded.

1. Understand What a Custodial Roth IRA Actually Is

A custodial Roth IRA is a standard Roth IRA that’s legally owned by a minor but controlled by an adult custodian — typically a parent or grandparent — until the child reaches the age of majority (18 or 21, depending on your state). It follows the same IRS rules as any Roth IRA: contributions are made with after-tax dollars, the money grows tax-free, and qualified withdrawals in retirement are completely tax-free.

The catch — and it’s the part most people miss — is that the IRS requires earned income to contribute. A child cannot contribute unearned income like birthday money, allowance, or investment gains. The income must come from actual work: a summer job, mowing lawns, modeling, acting, babysitting, or working in a family business. The IRS doesn’t require a W-2 specifically; self-employment or cash income counts too, as long as it’s documented and reasonable for the work performed.

This is fundamentally different from a 529 plan or a custodial brokerage account under the Uniform Transfers to Minors Act (UTMA/UGMA). A 529 is restricted to education expenses (with some flexibility now to roll into a Roth IRA under SECURE 2.0 provisions). A UTMA/UGMA account has no earned-income requirement but offers no tax-free growth and becomes the child’s unrestricted property at the age of majority — meaning they could blow it on a car the day they turn 18. A custodial Roth IRA, by contrast, is specifically retirement-oriented, tax-advantaged, and — because withdrawals of contributions are always accessible without penalty — surprisingly flexible for emergencies or even a future home down payment.

Example: Suppose your 14-year-old daughter earns $3,200 mowing lawns and babysitting over a summer, all documented in a simple ledger with dates, clients, and payments. That $3,200 is earned income, and you could contribute up to that amount (or the annual IRA limit, whichever is lower) into a custodial Roth IRA in her name.

2. Confirm Your Child Meets the Earned Income Requirement

Before opening any account, nail down the earned income question because it’s the one area the IRS scrutinizes if you’re ever audited. Here’s how to document income properly:

For W-2 jobs: Simple — the pay stub and W-2 form serve as your proof. Any teen working retail, fast food, camp counseling, or an internship qualifies automatically.

For self-employment or cash jobs (babysitting, lawn care, tutoring, pet sitting): You need to keep records as if your child were a small business owner. Track:

• Date of each job
• Client name
• Description of work performed
• Amount paid

If your child earns more than $400 in self-employment income in a year, they technically owe self-employment tax (Social Security and Medicare), which you’d report via Schedule C and Schedule SE on a tax return filed in the child’s name. Many families skip this step for very small amounts, but if you’re contributing several thousand dollars, it’s worth filing a simple return to create an official paper trail with the IRS. A tax professional or software like TurboTax can walk you through a minor’s first tax return in under an hour.

For family business income: If your child works in your business (filing paperwork, cleaning the office, appearing in marketing materials), you can pay them a reasonable wage for age-appropriate work. This is a legitimate and popular strategy among business-owning parents because the wages are often tax-deductible to the business and tax-free (or very low-tax) to the child, in addition to creating Roth IRA eligibility. Just make sure the pay is reasonable — the IRS doesn’t allow paying an 8-year-old $50,000 to “consult.”

Key rule: You can contribute up to the lesser of the child’s total earned income for the year or the annual IRA contribution limit. For 2026, that limit is $7,500 for anyone under 50 — so realistically, most working teens’ earned income will be the binding constraint, not the IRS limit.

3. Choose the Right Brokerage to Open the Account

Not every brokerage offers custodial Roth IRAs, so this step matters. As of 2026, the major players with straightforward custodial Roth IRA offerings include:

• Fidelity — offers a dedicated “Roth IRA for Kids” account with no account minimums or annual fees, and a simple online application process. Fidelity is widely considered the easiest option for parents.
• Charles Schwab — offers a Custodial Roth IRA with no minimum deposit and access to Schwab’s full fund and ETF lineup.
• Vanguard — supports custodial IRAs, particularly attractive if you want to invest primarily in low-cost Vanguard index funds.

When comparing options, look at:

1. Account minimums and fees — Fidelity and Schwab both offer $0 minimums and no maintenance fees for custodial Roth IRAs.
2. Investment options — Ensure the brokerage offers low-cost index funds or ETFs, not just proprietary high-fee products.
3. Ease of transferring custody — At the age of majority (18 or 21 depending on your state), the account converts to the child’s own Roth IRA. Make sure the brokerage has a clean process for this transition.
4. User interface for teaching kids — Fidelity’s youth-focused tools and app can help teens actually watch their account grow, which is a powerful financial literacy tool.

Step-by-step account opening process (using Fidelity as an example):

1. Go to Fidelity’s website and search “Roth IRA for Kids.”
2. Click “Open Account.” You, the parent, will be listed as the custodian.
3. Provide your Social Security number and the child’s Social Security number.
4. Provide your child’s date of birth and confirm they have earned income for the year.
5. Fund the account via bank transfer — you can contribute cash even though the income was your child’s, as long as the contribution doesn’t exceed their earned income.
6. Select investments (see Section 5 below).

The entire process typically takes 15–20 minutes online.

4. Understand Contribution Limits and Tax Rules for 2026

For 2026, the combined Traditional and Roth IRA contribution limit is $7,500 for anyone under age 50 — this applies to your child’s custodial Roth IRA just as it would to your own IRA. There is no separate “kiddie limit” — it’s the same limit as adults, capped by earned income.

Since most working teenagers won’t earn $7,500 in a summer job, the realistic constraint is usually their actual income. If your son earns $2,000 detailing cars over the summer, $2,000 is the maximum that can go into his Roth IRA for that year — not the full $7,500.

Important nuance: The contribution doesn’t have to come directly from the child’s paycheck. Many parents “match” their child’s earnings — the child keeps their actual paycheck to spend or save, while the parent contributes an equivalent amount (up to the earned income limit) into the Roth IRA from family funds. This is completely allowed by the IRS, as long as the contribution amount doesn’t exceed what the child actually earned that year.

Tax treatment: Contributions are made with after-tax dollars — meaning there’s no tax deduction now — but because most kids have little to no taxable income (they likely won’t even owe federal income tax given the standard deduction), the contribution effectively costs nothing in taxes today. Growth inside the account is 100% tax-free, and qualified withdrawals in retirement are 100% tax-free as well.

Example with real numbers: Suppose you contribute $6,500 per year into your child’s custodial Roth IRA from ages 15 to 18 (four years), totaling $26,000 in contributions. Assuming a 7% average annual return and no further contributions after age 18, that account could grow to approximately $650,000 by age 65 — all tax-free. Compare that to the same $26,000 invested in a taxable account, where growth would be reduced by taxes on dividends and capital gains along the way.

5. Choose Age-Appropriate, Long-Horizon Investments

Because a custodial Roth IRA for a teenager has a 45-to-50-year investment horizon before retirement, this is the ideal account for maximum growth-oriented investing. Common choices include:

• Total US stock market index funds (e.g., Fidelity ZERO Total Market Index Fund, Vanguard Total Stock Market ETF)
• S&P 500 index funds (low expense ratio, broad diversification)
• Target-date funds — though for a horizon this long, an aggressive all-equity target-date fund (like a 2065 or 2070 fund) may make more sense than a conservative allocation
• Total international index funds for diversification outside the US

Avoid overly conservative allocations like bond funds or money market funds — with 45+ years until retirement, your child’s account should be positioned for growth, not capital preservation. Also avoid meme stocks or speculative single stocks; while it might be tempting to let your teen pick a trendy tech stock, the point of this account is disciplined, long-term compounding, not speculation. Use the account partly as a teaching tool: show your child their statement once or twice a year and explain how the index fund tracks the broader market.

6. Manage the Account as Custodian Until Transfer of Control

As custodian, you control all investment decisions, contributions, and paperwork until your child reaches the age of majority in your state (usually 18, though some states like California and several others extend UTMA-style custodianship to 21 for financial accounts if specified at opening). At that point, the brokerage will re-title the account into the child’s name as an individual Roth IRA, and they gain full control.

Steps to manage the account properly:

1. File a tax return for your child if required — especially if their self-employment or W-2 income exceeds filing thresholds, or if you want a clean earned-income paper trail.
2. Keep meticulous records — save pay stubs, 1099s, or self-employment logs for at least the years you make contributions, in case the IRS ever asks for substantiation.
3. Review the account annually — rebalance if needed, and consider increasing contributions as your child’s earned income grows through the teenage years.
4. Teach your child about the account — this is a rare opportunity to teach compounding, taxes, and long-term investing before they’re financially independent.
5. Plan the handoff — before your child turns 18 (or 21), have a conversation about the account’s purpose. Emphasize that while Roth contributions can be withdrawn penalty-free at any time, leaving the money invested for retirement is what generates the extraordinary long-term tax-free growth.

Key Takeaways

• A custodial Roth IRA requires the child to have legitimate earned income — W-2 wages, self-employment income, or family business pay all qualify, but birthday money and allowance do not.
• For 2026, the IRA contribution limit is $7,500, but the real cap is whichever is lower: that limit or the child’s actual earned income for the year.
• Parents or grandparents can “match” a child’s earnings with family funds, as long as the total contribution doesn’t exceed the child’s documented income.
• Top custodial Roth IRA providers in 2026 include Fidelity, Charles Schwab, and Vanguard, all offering $0 minimums and low-cost index fund options.
• Keep detailed income records (pay stubs, self-employment logs, or a simple tax return) to substantiate contributions if the IRS ever asks.
• Invest aggressively given the 45+ year time horizon — total market index funds or aggressive target-date funds make the most sense for a teenager’s account.
• At the age of majority, the account converts to the child’s own Roth IRA, so use the years before that transition to teach financial literacy alongside the tax benefits.

Conclusion

Learning how to open a custodial Roth IRA for your kids in the US is one of the highest-leverage financial moves a parent can make — it costs little today but can compound into a life-changing sum of tax-free retirement wealth decades from now. The steps are straightforward: confirm your child has earned income, choose a low-cost brokerage like Fidelity, Schwab, or Vanguard, contribute up to their earned income (capped at $7,500 for 2026), invest for long-term growth, and maintain good records along the way. Don’t wait for the “perfect” moment — if your child earned even a few hundred dollars this year, that’s enough to start. Open the account this week, make your first contribution, and give your child a decades-long head start toward financial independence.

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Disclaimer: The content on this site is for general informational purposes only and is not financial, tax, or investment advice. Verify current IRS rules and consult a licensed professional before making decisions.