Whether a 16-year-old has to file taxes depends on how much they earned and what type of income it was

A 16-year-old must file a tax return if their earned income (from a job) exceeded $13,850 in 2023, or if their unearned income (from investments, interest, or dividends) exceeded $1,250. These thresholds change slightly each year. If your teenager earned less than these amounts, they generally do not have to file — but filing anyway might get them a refund of taxes already withheld from their paychecks.

The rule is straightforward: the IRS sets a minimum income level each year, and if a teenager's total income stays below it, filing is optional. However, many 16-year-olds should file even when they are not required to, because employers often withhold taxes from paychecks that the teenager could reclaim.

Key Takeaways

  • A 16-year-old must file taxes if they earned more than $13,850 from a job in 2023, or more than $1,250 from investments or interest.
  • Even if filing is not required, a teenager should file if their employer withheld taxes, because they may receive a refund.
  • A parent can claim a teenager as a dependent on their own return, which affects the teenager's filing threshold.
  • The IRS thresholds increase each year, so check the current year's limits before deciding whether to file.
  • A 16-year-old can file their own return using free IRS software or work with a tax preparer.

How the income threshold works for dependents

If a parent claims the teenager as a dependent on their own tax return, the filing threshold is different. For 2023, a dependent with only earned income must file if they earned more than $13,850. But if the teenager has unearned income (interest, dividends, capital gains), the threshold drops to $1,250 of unearned income, or $3,800 total income from a combination of earned and unearned sources.

The reason the threshold is higher for earned income is that the standard deduction — the amount of income you can earn tax-free — is larger for wages than for investment income. A parent should check their own tax situation before assuming their teenager does not need to file, because claiming a dependent can change what the teenager owes.

When a 16-year-old should file even if not required

Many 16-year-olds who earned less than the filing threshold still benefit from filing a return. If an employer withheld federal income tax from the teenager's paychecks — which happens when they fill out a W-4 form at hire — that money is held by the IRS until a return is filed. Filing allows the teenager to reclaim it as a refund.

A teenager should also file if they earned income from self-employment (like babysitting, lawn care, or freelance work) totaling $400 or more, even if their total income is below the threshold. Self-employment income triggers a separate filing requirement because the teenager owes self-employment tax (Social Security and Medicare taxes), which is calculated on Schedule SE.

What documents a 16-year-old needs to file

To file a tax return, a 16-year-old needs a Social Security number (which most have from birth) and a W-2 form from each employer, showing wages earned and taxes withheld. The W-2 arrives by January 31 each year. If the teenager is self-employed, they do not receive a W-2; instead, they track their own income and expenses and report them on Schedule C.

If the teenager has investment income, they will receive a 1099 form — either a 1099-INT (for interest), 1099-DIV (for dividends), or 1099-B (for stock sales) — depending on the type of income. The teenager should gather all these forms before starting the return.

How a 16-year-old can file their return

A 16-year-old can file using the IRS Free File program, which offers free tax software to households earning below a certain income threshold (usually around $73,000). The teenager logs in, enters information from their W-2 or 1099 forms, and the software calculates what they owe or what refund they are due. The return is then filed electronically with the IRS.

Alternatively, a parent can help the teenager file, or they can work with a tax preparer or CPA. Some tax preparers offer reduced rates for straightforward returns, and some nonprofits offer free tax preparation for low-income filers. The teenager can also file by mail using Form 1040 and the appropriate schedules, though electronic filing is faster and more reliable.

The important date and what happens if a 16-year-old misses it

The tax filing important date is April 15 each year (or the next business day if April 15 falls on a weekend). If a teenager owes taxes and misses the important date, they face penalties and interest charges on the unpaid amount. If they are due a refund and miss the important date, they can still file and receive it, but the IRS will not hold the refund indefinitely — typically they keep unclaimed refunds for three years.

If a teenager needs more time, they can file Form 4868 to request an automatic six-month extension, pushing the important date to October 15. The extension gives more time to file, but if taxes are owed, they are still due by April 15 — the extension only delays filing, not payment.

How a teenager's income affects a parent's taxes

A parent can claim a teenager as a dependent only if the teenager earned less than $4,700 in 2023 (this threshold also changes yearly). If the teenager earned more than that, the parent cannot claim them as a dependent, which means the teenager files their own return and the parent loses the dependent exemption on theirs.

Additionally, if a teenager has unearned income and the parent claims them as a dependent, the teenager may owe the "kiddie tax," which taxes investment income above a certain threshold at the parent's tax rate rather than the teenager's rate. This rule prevents parents from shifting investment income to children in lower tax brackets. A parent should discuss this with a tax preparer if the teenager has significant investment income.

Frequently Asked Questions

Does a 16-year-old need a Social Security number to work?

Yes. An employer requires a Social Security number before hiring, and the teenager provides it on the W-4 form. If the teenager does not have one, they can request one from the Social Security Administration before starting a job.

What if a 16-year-old earned money from a job but no W-2 was sent?

The employer is required to send a W-2 by January 31. If one does not arrive, the teenager should contact the employer and ask for it. If the employer refuses or is unreachable, the teenager can call the IRS at 800-829-1040 and report the missing W-2; the IRS can contact the employer on the teenager's behalf.

Can a 16-year-old file taxes on their own, or does a parent have to sign?

A 16-year-old can file their own return using free IRS software. If filing electronically, the teenager signs the return using a PIN or electronic signature. A parent does not have to sign unless the teenager is filing on paper, in which case a parent's signature may be required depending on the teenager's age and the return type.

What if a 16-year-old had taxes withheld but earned below the filing threshold?

The teenager should file to reclaim the withheld taxes as a refund. Even though filing is not required, filing is the only way to get the money back. The refund is usually issued within two to three weeks of filing electronically.

Does a 16-year-old have to report cash income from babysitting or yard work?

Yes. All income, whether paid in cash or by check, must be reported on a tax return. If the teenager earned $400 or more from self-employment in a year, they must file and report it on Schedule C, even if no one issued them a 1099 form.