Roth IRA and the 0% Tax Bracket
The tax details behind Roth IRAs for working teens
This post explains why Roth IRAs work unusually well for working teens and college students — and how the 0% tax bracket fits into that.
If you only want the headline takeaway, it’s this:
When earned income is taxed at 0%, a Roth IRA turns that money into tax-free money for life.
Here’s how that works under current U.S. tax law.
Earned income vs. Investment income
The IRS treats income from working very differently than income from investments.
Earned income includes:
W-2 wages from hourly or salaried jobs (retail, food service, lifeguarding, internships, etc.)
Self-employment income (babysitting, tutoring, lawn care — if reported)
This is the income that determines whether you can contribute to a Roth IRA.
Investment income includes:
Interest
Dividends
Capital gains
This is also referred to as unearned income.
Why most working teens pay 0% federal income tax
Even if parents claim a teen as a dependent, the teen still files their own tax return.
Because teens usually earn relatively little, their income is often fully covered by the standard deduction. In practical terms, that means:
Most teens owe no federal income tax on their wages
If taxes are withheld from paychecks, they’re often refunded when taxes are filed
For 2026, the federal standard deduction for a single filer is $16,100. For dependents, the deduction is tied to earned income, but the outcome is usually the same: teens with typical part-time jobs owe $0 in federal income tax.
(Separate payroll taxes like Social Security and Medicare still apply. This discussion is about federal income tax, which is what matters for Roth IRAs.)
The “kiddie tax”
You may have heard that kids get taxed at their parents’ rate once income gets high enough. That’s partially true — but it applies to investment income, not wages.
Important points:
The kiddie tax does not apply to job income
It does not affect Roth IRA eligibility
It does not change how wages are taxed
A teen can earn wages, owe 0% federal income tax on those wages, and contribute that money to a Roth IRA — even if they also have investment income elsewhere.
How Roth IRAs are taxed
Roth IRAs follow three simple rules:
You contribute money that has already been taxed
The money grows tax-free
You can withdraw it tax-free in retirement
For most adults, this means paying taxes now to avoid taxes later.
For working teens in the 0% bracket, it usually means:
No tax when the money is earned
No tax while it grows
No tax when it’s eventually used
That combination is rare — and temporary.
Limits
A few basic rules still apply:
There’s a yearly limit on how much you can contribute
The 2026 IRA contribution limit is $7,500 for anyone under 50
You can’t contribute more than you earn
“Earnings” here means your gross wages — the amount you’re paid before any taxes or other deductions.
Very high incomes can limit Roth eligibility
In 2026, the ability to contribute to a Roth IRA begins phasing out at a Modified Adjusted Gross Income of $153,000 for single filers. For teens and college students with typical jobs, these limits almost never come into play.
Bottom line
For working teens and college students, Roth IRA rules are unusually simple. Earned income determines eligibility, wages often fall into the 0% federal tax bracket, and Roth contributions — along with their growth and qualified withdrawals — are never subject to federal income tax.