How to Fill Out a W-4 for a Teenager

By Jenna Hale · Last checked August 19, 2026

What the W-4 is actually for

The W-4 is not a tax return and it does not set what your teenager owes. It is an instruction sheet for the payroll department: it tells the employer how much federal income tax to hold back from each check and send to the IRS on the teenager’s behalf.

Get it wrong in one direction and too much is withheld, which comes back later as a refund when a return is filed. Get it wrong in the other direction and too little is withheld, which turns into a bill. For a teenager earning part-time money, the amounts are usually small either way. That is worth saying out loud, because the form looks far more consequential than it is.

The current version is the 2026 Form W-4. If a manager hands over a form with an older year printed in the corner, ask for the current one.

The whole form, and which parts a teenager touches

That is the honest answer to the question. Most teenage W-4s are Step 1 and Step 5, and the blank middle is correct rather than incomplete.

Step 1: personal information

Three parts. Step 1(a) is legal name and home address, matching what is on the Social Security card rather than a nickname. Step 1(b) is the Social Security number, which needs to be exact, because a single wrong digit is the most common reason a W-2 later fails to match IRS records.

Step 1(c) is filing status. An unmarried teenager checks Single or Married filing separately. Head of household is not it. Being claimed as a dependent on a parent’s return does not change this box and is not asked about anywhere on the form.

Step 2: multiple jobs

Only relevant if they hold more than one job at the same time. The reason this step exists is mechanical: each employer withholds as if the wages it pays were the person’s entire income for the year, so two simultaneous jobs can each withhold nothing while the combined total is enough to create a small liability.

Two jobs in a row over one year is not the same thing. A dishwashing job in June and a camp job in August are sequential, and Step 2 stays blank.

Step 3: the one where teenagers go wrong

Step 3 is where a taxpayer claims the child tax credit and the credit for other dependents. It is asking who they support, not who supports them.

The common error is a teenager reading “dependent” and entering an amount for themselves, because they know they are somebody’s dependent. That is backwards, and it tells payroll to withhold less than it should. A teenager with no children and no dependents of their own leaves Step 3 empty.

There is a related idea worth clearing up at the kitchen table: a teenager cannot claim themselves on a parent’s behalf, and nothing on the W-4 decides who claims whom. That gets settled on the tax return, not on this form.

Step 4: other adjustments

Three optional lines, all of which are usually blank for a first job. Step 4(a) is income with no withholding attached to it, such as interest or dividends. Step 4(b) is for someone who itemizes deductions. Step 4(c) is extra withholding, a flat dollar amount per pay period on top of the normal calculation.

Step 4(c) is the one place a nervous first-time worker sometimes puts a number “just in case”. There is no need. It is not a savings account, and the money is not easier to get back than any other over-withholding.

Step 5: sign and date

Unsigned, it is not a valid W-4. The declaration above the line is the standard penalties of perjury language, and the employee is the one who signs it. Hand it to the manager or upload it wherever the onboarding portal wants it, and keep a photo of the completed form. A copy is useful three months later when nobody can remember what was checked.

Can a teenager claim exempt?

Sometimes, and it is a real option rather than a loophole. Claiming exempt means checking the box in the “Exempt from withholding” space above Step 5, then completing only Steps 1(a), 1(b) and 5 and leaving everything else blank.

IRS Publication 505 sets out the two-part condition, and both halves have to be true:

1. For 2025, they had a right to a refund of all federal income tax withheld, because they had no tax liability, and
2. For 2026, they expect a refund of all federal income tax withheld, because they expect to have no tax liability.

A teenager whose first job started this year and who has never filed anything meets the first half by default, because there was no 2025 liability. The second half is the judgment call, and it turns on the standard deduction for someone who is claimed as a dependent.

For tax year 2026, that standard deduction is the greater of $1,350, or $450 plus their earned income, capped at the $16,100 single standard deduction, all per Rev. Proc. 2025-32. In plain terms: a dependent teenager whose 2026 income is all wages and stays well under $16,100 is generally looking at no federal income tax liability for tax year 2026. Publication 505 also notes that unearned income of more than $450, such as interest on a savings account, can knock a dependent out of the exemption, so a teenager with a meaningful investment account should not check the box on autopilot.

Being a student, by itself, is not a qualification. Publication 505 is explicit about that.

Three things exempt does not do

It does not stop Social Security and Medicare. These come out of ordinary W-2 wages at 6.2 percent and 1.45 percent, 7.65 percent combined, which is the employee half of the 15.3 percent that self-employed people pay. On an ordinary job with an outside employer, age does not exempt anyone and neither does earning very little, and the W-4 has no effect on this line whatsoever. The narrow exceptions run through the employer rather than the form: the IRS’s page on family employees says payments to a child under 18 for services in a parent’s sole proprietorship, or a partnership in which each partner is a parent, are not subject to Social Security and Medicare taxes, and a student employed by the school they attend can also fall outside FICA. If the expectation is a check with nothing taken out, run the numbers first in the first paycheck estimator.

It does not refund anything already withheld. A W-4 changes future checks only.

It does not last. An exempt claim expires. Publication 505 says a new Form W-4 has to go to the employer by February 15 each year to continue the exemption, and the 2026 form prints the date as February 16, 2027. Miss it and payroll is required to fall back to withholding as if the teenager were single with no adjustments. That is not a penalty, it just means smaller checks in February until a new form is filed.

What this looks like

Adam is sixteen and starts at a grocery store in September, twelve hours a week. He did not work at all in 2025 and filed nothing.

He fills in Step 1: legal name, home address, Social Security number copied carefully off the card, and Single. He skips Steps 2, 3 and 4, because he has one job, no dependents and no outside income. He signs Step 5.

He and his mother look at the exempt box together. He had no 2025 liability, and his projected wages between September and December are nowhere near the point where he would owe anything for tax year 2026, so he expects no liability either. His standard deduction as a dependent is not the flat $16,100 a non-dependent single filer gets, it is the greater of $1,350 or $450 plus his earned income, and a few months of part-time wages sits comfortably underneath it. He checks the box. His paychecks now have no federal income tax coming out, and about 7.65 percent still disappearing for Social Security and Medicare, which he was not expecting and which is not a payroll error.

His mother puts a reminder in her phone for late January 2027, because if he is still working there, the exempt claim has to be re-filed.

The wrong number you will see on other pages

Several pages still circulating quote a $1,150 threshold for a dependent’s standard deduction. That figure is from tax year 2022 and it has moved every year since. If a page you are reading still says $1,150, it has not been updated in four years and nothing else on it should be trusted either. The current figures are in Rev. Proc. 2025-32 for tax year 2026.

Filing is a separate question

Having tax withheld and being required to file a return are two different things, and a teenager who is not required to file often should anyway, because filing is the mechanism by which withheld federal income tax comes back. The current thresholds, and which tax year each one belongs to, are on does my teenager have to file taxes.

If some of their money comes from babysitting or mowing rather than a W-2 job, none of the above applies to that part of it, and the rules are genuinely different. That is covered in babysitting, mowing and taxes.

And if the W-4 is the last item before the first shift, the rest of the list is in before the first shift.

This is general information, not tax advice, and the rules change every year. Check the linked IRS pages, or ask a tax professional, before making a call that matters.