Why Are Some Family Business Wages to a Child Exempt From FICA Tax?
A parent running a small family business hands their teenager a paycheck for helping out after school, and the pay stub looks different from a typical part-time job stub. No Social Security or Medicare tax withheld at all. That’s not a payroll error, and it isn’t favoritism. It’s a specific, narrow exemption built into federal payroll tax rules.
In short
When a sole proprietorship, or a partnership owned entirely by a child’s parents, employs that child, and the child is under 18, the wages are generally exempt from Social Security and Medicare tax, commonly called FICA. If the child is under 21, those wages can also be exempt from federal unemployment tax. The exemption depends on the business’s legal structure and the child’s age, not simply on the fact that a parent happens to sign the paycheck.
Why the exemption exists
The rule reflects a general policy choice: Congress carved out an exception for wages paid within a true family business, on the reasoning that a young person helping in a parent’s shop, farm, or office is often doing something closer to family labor than a conventional employment relationship. It also softens the tax burden on legitimately employing a minor in the family enterprise, since payroll taxes can otherwise be a real cost for a small operation running on thin margins.
Which business structures qualify
This is where the exemption gets narrow, and where confusion often starts:
- Sole proprietorship. A business owned and operated by one parent, with no other legal owners, generally qualifies for the exemption when that parent employs their own child.
- Parent-only partnership. A partnership qualifies only if every partner is a parent of the employed child. A partnership that includes a grandparent, an aunt or uncle, a family friend, or any other non-parent partner does not qualify, even if the child’s parent is one of the partners.
- What does not qualify. Corporations, S corporations, and most partnerships that include a non-parent owner are excluded from this specific exemption. A child employed by a family-owned corporation is generally treated the same as any other employee for FICA purposes, regardless of who owns the stock.
What still applies even when FICA doesn’t
The exemption is specific to Social Security, Medicare, and, for younger children, federal unemployment tax. It does not eliminate other tax obligations:
- Federal income tax withholding. Wages generally remain subject to income tax rules, though a child with low expected annual earnings may be able to claim an exemption from withholding on their own W-4 based on having little or no tax liability.
- Reasonable pay for real work. The wages need to reflect actual work performed at a reasonable rate. A business can’t inflate a child’s pay simply to shift income within the family; the IRS expects the arrangement to resemble genuine employment.
- Recordkeeping. Hours worked, duties performed, and pay records matter here just as they would for any other employee, and keeping organized records makes it easier to substantiate the arrangement if it’s ever questioned.
What changes as the child ages
The exemptions are tied to specific birthdays, not to the child’s role in the business:
- At 18. FICA exemption on wages generally ends. Once the child turns 18, wages paid after that point are typically subject to Social Security and Medicare tax like any other employee’s pay, even though the family business hasn’t changed.
- At 21. The federal unemployment tax exemption ends. Wages paid after the child turns 21 typically become subject to that tax as well.
Because payroll tax treatment can shift mid-year, once a birthday falls in the middle of a pay period, the business generally needs to start withholding and paying the applicable taxes going forward from that date.
This is a different question from how self-employment tax works for adults with side income, since a minor working for a parent’s sole proprietorship as a W-2 employee isn’t self-employed, and it’s also worth understanding why a separate Medicare line shows up on a pay stub at all once that exemption stops applying.
Putting it in perspective
The FICA exemption for a child employed by a parent is real, but it only applies in specific circumstances: a sole proprietorship or a parents-only partnership, a child under the relevant age threshold, and wages that reflect genuine work. Outside those conditions, family business income is generally taxed the same way any other wages would be.