The most critical concept to master when transitioning to a Custodial Roth IRA is the definition of "Earned Income." Unlike a UGMA or UTMA account, which can be funded by anyone at any time regardless of the child's employment status, a Roth IRA requires the account holder to have taxable compensation . This is the "Golden Key" that unlocks the account. Without earned income, the IRS does not allow contributions to a Roth IRA. Understanding what counts—and what doesn't—is the first step in ensuring your child’s head start is built on a solid legal foundation.

Defining Taxable Compensation

According to the IRS, earned income includes wages, salaries, commissions, and income from self-employment . For a teenager, this usually manifests in one of two ways: a "W-2 job" or "self-employment/gig work."

The W-2 Path: Traditional Employment

This is the simplest form of earned income to track. If your child works at a local grocery store, a movie theater, or as a camp counselor, they will receive a W-2 form at the end of the year. The "Box 1" amount on that W-2 is the definitive proof of earned income.

Example: 16-year-old Leo works as a lifeguard over the summer. He earns $3,000. His W-2 shows $3,000 in earnings. Leo (or his parents on his behalf) can contribute up to $3,000 to his Custodial Roth IRA for that tax year.

The 1099/Self-Employment Path: The Entrepreneurial Route

Many children earn money through less formal means, such as babysitting, lawn mowing, pet sitting, or tutoring. The IRS considers this self-employment income . While these jobs are perfectly valid for Roth IRA eligibility, they require more diligent record-keeping.

The "Reasonable Wage" Rule: You cannot pay your child $1,000 to take out the trash once. The IRS requires that the pay be "reasonable" for the work performed . If the going rate for a neighborhood lawn mowing service is $40, paying your child $40 is acceptable. Paying them $400 is a red flag.
Documentation is Key: For non-W-2 jobs, it is vital to keep a log. This log should include the date of work, the type of work performed, who the work was for, and the amount paid. This creates a "paper trail" in case the IRS ever questions the contribution.

What Does NOT Count as Earned Income

It is a common mistake to think that any money a child receives can be put into a Roth IRA. The IRS is very specific about "unearned income," which is ineligible for Roth contributions .

Allowances: Money given for household chores that are part of being a family member generally does not count as earned income.
Gifts: Birthday money from Grandma or graduation gifts are not earned income.
Investment Income: Interest from a savings account, dividends from stocks in a UGMA, or capital gains are considered "unearned" .
Prizes and Awards: Winning a school essay contest or a sports tournament prize is typically not considered earned income for IRA purposes.

The "Amount Earned" Limitation

A crucial rule to remember is that the contribution to a Roth IRA cannot exceed the child's total earned income for the year . Even though the federal limit for 2025 is $7,000, a child who only earns $1,500 can only have $1,500 contributed to their Roth IRA .

Scenario	Total Earnings	Max Roth Contribution
Summer Job (W-2)	$4,500	$4,500
Babysitting (Cash)	$800	$800
Internship + Lawn Mowing	$7,500	$7,000 (The 2025 Limit)
Birthday Gifts Only	$500	$0

Practical Example: The "Paper Route" Case Study

Imagine 13-year-old Maya. She starts a neighborhood paper route and earns $100 a month. Over the year, she earns $1,200.

Step 1: Verification: Maya’s parents help her keep a simple spreadsheet of her monthly earnings.
Step 2: Contribution: Maya wants to spend her money on a new bike. Her parents, recognizing the value of the Roth IRA, decide to "gift" her the $1,200 to put into the account.
The Result: This is perfectly legal. The money put into the Roth IRA does not have to be the exact physical dollars Maya earned, but the amount cannot exceed what she earned . Maya gets her bike, and her Roth IRA gets $1,200 of seed money.

Frequently Asked Questions: Earned Income

Q: Does my child need to file a tax return to contribute?
A: Not necessarily. If their total income is below the standard deduction, they may not be required to file a federal return. However, they still must have the income to be eligible. Keeping records is mandatory even if a return isn't filed .

Q: Can I hire my child for my small business?
A: Yes! This is a popular strategy for business owners. You can pay your child for legitimate work (like filing, cleaning the office, or social media management). As long as the pay is reasonable and you document the work, this counts as earned income and allows for a Roth contribution.

Q: What if my child earns money in cash?
A: Cash is fine, but it must be documented. A simple ledger or a receipt book showing payments from neighbors for "Pet Sitting Services" is sufficient to prove the income existed .