If your child under 18 received a Form 1099-NEC, they are treated as self-employed, and once their net earnings reach $400 they must file their own federal tax return and pay a 15.3% self-employment tax. That threshold applies regardless of age, regardless of whether income tax is owed, and regardless of whether you still claim the child as a dependent (you usually can). Everything else about the situation follows from those facts.
When Your Child Has to File
The trigger most parents miss is the self-employment threshold. If your child’s net self-employment earnings — gross income minus business expenses — reach $400 or more, filing is mandatory.1Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) A child who earned $800 but spent $450 on supplies has net earnings of $350 and doesn’t meet it. A child who earned $500 with no expenses does, even if no income tax is owed.
A separate threshold governs income tax. A dependent must file if gross income exceeds their standard deduction, which for a dependent is the greater of a minimum floor amount or earned income plus $450, capped at the regular single-filer standard deduction of $16,100 for 2026.2Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information3Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 For most minors with 1099 income, the $400 self-employment trigger is what matters.
One thing not to rely on: the arrival of the paper form. Starting with payments made after December 31, 2025, a payer only has to issue a 1099-NEC once they’ve paid $2,000 or more to a single recipient during the year.4Internal Revenue Service. Form 1099-NEC and Independent Contractors All self-employment income is taxable whether or not a form shows up. If your child earned $1,200 freelancing across the year and never received a 1099, the IRS still expects it reported.
First, Check Whether the 1099 Should Have Been a W-2
Before running any numbers, ask whether the 1099-NEC is even correct. Businesses sometimes classify workers as independent contractors when the IRS would consider them employees, and this happens with minors more often than you’d think, particularly at tutoring companies, youth sports organizations, and small businesses that hire teenagers for regular shifts.
The IRS looks at behavioral control (does the business dictate how, when, and where the work happens), financial control (does it supply the tools and reimburse expenses), and the nature of the relationship (ongoing set hours versus project-based work).5Internal Revenue Service. Independent Contractor (Self-Employed) or Employee? If your child works set hours at a business location, uses the company’s equipment, and follows a manager’s instructions, they were probably an employee who should have received a W-2.
Misclassification costs real money because the child pays the full 15.3% self-employment tax instead of splitting FICA with an employer. You can file Form SS-8 with the IRS to request a formal determination. The process takes at least six months, but it can force the business to reclassify the worker and pay its share of employment taxes.6Internal Revenue Service. Completing Form SS-8
The 15.3% Self-Employment Tax
Self-employment tax covers Social Security and Medicare. A regular employee splits those taxes with the employer. Someone who’s self-employed pays both halves: 12.4% for Social Security plus 2.9% for Medicare, totaling 15.3%.1Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
The calculation runs through two forms. Schedule C reports gross income and business expenses to arrive at net profit. That net profit flows to Schedule SE, where the 15.3% rate applies to 92.35% of net earnings. On $2,000 of net profit, the tax works out to roughly $283. The child can then deduct half of the self-employment tax when calculating adjusted gross income on Form 1040, which reduces income tax but not the SE tax itself.
Because nothing is withheld from 1099 payments, this entire amount lands on the child at filing time (or through quarterly payments during the year, discussed below). That 15.3% catches most families off guard.
Business Expenses That Lower the Bill
Every dollar of legitimate expense reduces net profit on Schedule C, which reduces both self-employment tax and income tax. Common deductions depend on the work: a teenager doing graphic design can deduct software subscriptions and a drawing tablet; a child refereeing sports can deduct required uniforms and whistles. The expenses must be ordinary and necessary for the business, and if an item is used both personally and for the business, only the business portion counts.
Equipment costing $2,500 or less per item can be deducted in full in the year of purchase under the de minimis safe harbor election. More expensive equipment may qualify for a Section 179 deduction, which also allows full expensing rather than depreciating over years.7Internal Revenue Service. Instructions for Schedule C (Form 1040)
Keep receipts from the start. The IRS can disallow deductions without documentation, and reconstructing a year of small purchases from memory is a losing exercise. A simple spreadsheet is enough.
Income Tax and the Kiddie Tax
After self-employment tax, the child’s net profit (minus the deductible half of SE tax) is subject to regular federal income tax at the child’s own rate. For most minors that means the 10% bracket, or nothing at all after the standard deduction absorbs the earnings.
Parents sometimes worry about the kiddie tax pulling this income up to their own rate. It doesn’t. The kiddie tax applies to a child’s unearned income — interest, dividends, capital gains — above $2,700.8Internal Revenue Service. Topic No. 553, Tax on a Child’s Investment and Other Unearned Income (Kiddie Tax) Self-employment income is earned income by definition and stays on the child’s return at the child’s rate.9Internal Revenue Service. 2025 Instructions for Form 8615 – Tax for Certain Children Who Have Unearned Income If the child also has investment income of their own, the kiddie tax may hit that portion, but it leaves the 1099 earnings alone.
Quarterly Estimated Payments
Since no tax is withheld from 1099 payments, the IRS expects payment throughout the year rather than a single check in April. If the child will owe $1,000 or more in total tax (SE tax plus income tax) for the year, quarterly estimated payments using Form 1040-ES are technically required.10Internal Revenue Service. 2026 Form 1040-ES Estimated Tax for Individuals
The 2026 deadlines are April 15, June 15, September 15, and January 15, 2027. Missing them can trigger an underpayment penalty, though the IRS waives it if the total owed is under $1,000 or if at least 90% of the year’s liability was paid through estimates.11Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty A workable rule of thumb for irregular freelance income: set aside 25% to 30% of each payment in a separate account, then send in quarterly checks. If total annual earnings are modest enough that the child will owe under $1,000, quarterly payments can be skipped and the full amount paid at filing.
How the Return Gets Filed
The child files a standard Form 1040 with Schedule C (business income and expenses) and Schedule SE (self-employment tax calculation). This is the child’s own return, filed under the child’s Social Security number, even though you claim the child as a dependent on yours.1Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
If your child is too young to sign, you sign for them. The IRS protocol is to write the child’s name in the signature space, followed by “By [parent’s signature], parent or guardian for minor child.”12IRS. Publication 4012 – Return Signature The return itself can be filed electronically or by mail. For any balance due, the IRS offers Direct Pay (free bank transfer), debit or credit card, and EFTPS.13Internal Revenue Service. Types of Payments Available to Individuals Through Direct Pay
Penalties for Filing or Paying Late
Minors don’t get a pass. The failure-to-file penalty is 5% of the unpaid tax per month, up to 25%.14Internal Revenue Service. Failure to File Penalty A separate failure-to-pay penalty of 0.5% per month applies to unpaid tax, also capping at 25%.15Internal Revenue Service. Failure to Pay Penalty When both apply, the failure-to-file portion is reduced by the failure-to-pay amount, effectively capping the combined rate at 5% per month. On $1,500 in unpaid tax left for five months, that runs roughly $375 before interest. The practical fix: file on time even if the child can’t pay the full amount. Filing on time knocks out the larger of the two penalties.
Your Child Is Still Your Dependent
A 1099 doesn’t cost you the dependency claim. For a qualifying child, there is no gross income limit. The tests focus on relationship, age (under 19, or under 24 if a full-time student), residency, support, and whether the child files a joint return.16Internal Revenue Service. Dependents
The one to watch is support. You must provide more than half of the child’s total support for the year. For most minors living at home with moderate freelance earnings, this isn’t close. A teenager earning $15,000 or more and paying for their own car, phone, and clothing can push the support test toward the line, and in those cases it’s worth tracking expenses for the year.
The Roth IRA Opportunity Hiding in the 1099
Earned income opens a door most children don’t have. Any child with earned income can contribute to a Roth IRA, up to $7,500 for 2026 or the child’s total taxable compensation for the year, whichever is less.17Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 A child who earned $3,000 freelancing can contribute up to $3,000.18Internal Revenue Service. Retirement Topics – IRA Contribution Limits
Because the child is a minor, the account is set up as a custodial Roth IRA, with a parent managing it until the child reaches adulthood. The money doesn’t have to come from the child’s own pocket. A parent can fund the contribution as long as the child has at least that much earned income on the books. Contributions grow tax-free and come out tax-free in retirement. The 1099 creates a tax bill now and a retirement account almost no other 14-year-old can open.
Don’t Forget State Taxes
Federal is only half the picture. Most states with an income tax also require returns for self-employment income, often at thresholds well below the federal one. Nine states have no individual income tax. If the child performed work in a state other than your home state, they may owe in both. Filing thresholds and rules vary too widely for general guidance to be useful — check your state department of revenue’s page on self-employment income.