What Self-Employed Teenagers Need to Know About Taxes

Most teenagers encounter taxes for the first time through a W-2 job where everything is handled automatically. But a growing number earn money outside of traditional employment: selling products online, doing lawn care, babysitting, tutoring, creating content, or freelancing a skill.

That income is subject to tax. And the rules are meaningfully different from a regular paycheck job.

This guide explains how self-employment income is taxed, what forms are involved, what expenses you can deduct, and what to do before filing.

What Counts as Self-Employment Income

You are self-employed for tax purposes if you earn money from work where no employer is withholding taxes on your behalf. Common examples for teenagers and young adults:

• Lawn care, snow removal, or handyman services
• Babysitting, pet sitting, or dog walking
• Selling handmade or resale goods on Etsy, eBay, Depop, Poshmark, or similar platforms
• Freelance graphic design, writing, photography, or video editing
• Social media content creation, brand partnerships, or sponsorships
• Tutoring or giving music lessons
• Pressure washing, car detailing, or other service businesses
• Driving for a delivery app (must be 18+ in most states)
• Any other work done as a contractor rather than an employee

If you are paid through a formal payroll system where taxes are withheld from each check and you receive a W-2 at year end, you are an employee, not self-employed. This guide applies to the other situation.

The Two Taxes on Self-Employment Income

Self-employed individuals face two separate federal taxes on their net earnings.

1. Federal Income Tax

This is the same tax everyone pays. Your net self-employment income (revenue minus allowable expenses) is added to any other income you have (W-2 income, interest, etc.) and taxed at ordinary income tax rates after deductions.

For 2025, a teenager with no other income would face a 10% federal income tax rate on taxable income up to $11,925, after subtracting the $15,000 standard deduction. For most teenagers whose total income is below the standard deduction threshold, the federal income tax bill is zero.

2. Self-Employment Tax

This is the part most people miss. When you are an employee, your employer pays half of your FICA taxes (Social Security and Medicare). When you are self-employed, you are both the employer and the employee, so you pay the full amount:

• Social Security: 12.4% (on net earnings up to $176,100 in 2026)
• Medicare: 2.9% (no cap)
• Total self-employment tax: 15.3% on net self-employment earnings

Self-employment tax applies once your net self-employment income exceeds $400 per year. That is a very low threshold. A teenager who earns $800 mowing lawns over a summer owes self-employment tax on that amount even if no federal income tax is owed.

At $800 net earnings:

• Self-employment tax: $800 x 92.35% (a required adjustment) x 15.3% = approximately $113

The reason for the 92.35% adjustment: self-employed people can deduct the "employer" half of self-employment tax (7.65%) from their income before calculating what they owe. This is one of the few automatic above-the-line deductions for self-employment.

Filing Requirements

You are required to file a federal tax return if your net self-employment income is $400 or more, regardless of whether you owe any income tax. Even if your income is below the standard deduction and your income tax liability is zero, the self-employment tax alone may still be owed and must be reported.

The relevant forms:

• Schedule C (Profit or Loss from Business): Where you report your self-employment income and deduct business expenses. One Schedule C per business type. Attaches to your Form 1040.
• Schedule SE (Self-Employment Tax): Calculates your self-employment tax based on the net profit from Schedule C.
• Form 1040: Your main tax return, where everything combines.

Tax software handles all of this automatically if you indicate you had self-employment income during the interview.

What Expenses Can You Deduct?

One of the genuine advantages of self-employment is the ability to deduct legitimate business expenses from your income before calculating tax. This reduces your taxable self-employment income.

Common deductible expenses for teenage businesses:

What you cannot deduct: personal expenses, clothing that could be worn outside of work (unless it is a uniform with a logo), meals unless they are directly related to a business meeting, or any expense not connected to your business activity.

Keep records. The IRS can ask for documentation of any deduction. Save receipts, platform statements, mileage logs (date, destination, business purpose, miles driven), and any records of business income.

A Practical Example

Example: Sam, 16, lawn care business

Situation: Sam mowed lawns for neighbors over summer and fall, earning $3,200 total. He spent $180 on gas and $95 on a new blade for the mower (purchased for the business).

Net self-employment income: $3,200 - $275 in expenses = $2,925

Self-employment tax calculation: $2,925 x 92.35% = $2,701 x 15.3% = approximately $413

Federal income tax: Sam has no other income. Standard deduction is $15,000. His taxable income after the standard deduction and the deduction for half of self-employment tax is well below zero. Federal income tax owed: $0.

Total tax owed: $413 (self-employment tax only)

What he needs to file: Form 1040 with Schedule C and Schedule SE.

Example: Maya, 17, Etsy shop selling hand-painted phone cases

Situation: Maya earned $4,800 in Etsy sales over the year. Her costs: $620 in art supplies, $290 in shipping materials, $184 in Etsy and PayPal fees, $75 in packaging.

Net self-employment income: $4,800 - $1,169 = $3,631

Self-employment tax: $3,631 x 92.35% x 15.3% = approximately $513

Federal income tax: Below the standard deduction threshold after all deductions. $0.

Total tax owed: $513

Lesson: Tracking expenses properly (she kept a spreadsheet) reduced her taxable profit by nearly 25%, saving her about $130 in self-employment tax.

1099-K: The Platform Reporting Rule

If you sell through a third-party platform (Etsy, eBay, PayPal, Venmo for business, etc.) and receive more than $600 in payments in a year, the platform is required to issue you a Form 1099-K reporting your total gross sales.

This is purely informational. The 1099-K reports gross sales before fees, refunds, and returns. It does not reflect your actual profit. When you file Schedule C, you report your actual income and deduct your actual expenses. The 1099-K amount is a starting point, not your taxable income.

Do not let a 1099-K reporting requirement scare you. It just means the IRS has a record of your gross platform sales, and your filed return needs to account for them correctly.

Do You Need to Pay Estimated Quarterly Taxes?

If you expect to owe $1,000 or more in federal taxes for the year (income tax plus self-employment tax combined), the IRS expects you to pay in quarterly estimated taxes rather than waiting until April.

The 2026 estimated tax deadlines for the 2025 tax year:

• April 15, 2026 (Q1)
• June 16, 2026 (Q2)
• September 15, 2026 (Q3)
• January 15, 2027 (Q4)

Most teenagers with seasonal self-employment income (a summer lawn care business, for example) will not reach the $1,000 threshold and can pay everything when they file. If you have a year-round online business with consistent income, estimated quarterly payments may be required to avoid an underpayment penalty.

A simple rule: set aside 20-25% of every payment you receive into a separate savings account. Pay taxes from that fund at filing time. If the amounts are large enough to trigger quarterly requirements, make the payments on schedule.

Can a Parent Claim You as a Dependent Even If You File?

Yes. These are separate questions.

A parent can claim you as a dependent if you meet the qualifying child rules (generally: under 19, or under 24 if a full-time student, lived with them more than half the year, and they provided more than half your financial support). Your self-employment income does not automatically prevent this.

However, if a parent claims you as a dependent, your standard deduction is limited. For 2025, a dependent's standard deduction is the greater of $1,350 or your earned income plus $450, capped at the normal $15,000.

For a teenager with $3,000 in self-employment income who is claimed as a dependent: standard deduction = $3,000 + $450 = $3,450.

This means more of your income is potentially subject to federal income tax than for an independent filer, though the self-employment tax calculation is unchanged.

A Note on Kiddie Tax

The "kiddie tax" applies to unearned income (investment income, interest, dividends) for children under 19 (or under 24 if full-time students) above a threshold ($2,700 in 2025). Self-employment income is earned income and is NOT subject to the kiddie tax. Only passive income like dividends and capital gains from investment accounts triggers it.

If you have a Roth IRA or investment account alongside your business income, be aware of this distinction.

Quick-Start Checklist for a Self-Employed Teenager

• Track all income: keep a simple spreadsheet or use a free app like Wave
• Save every receipt for business expenses
• Log business miles with date, destination, and purpose
• Set aside 20-25% of each payment for taxes
• File Schedule C and Schedule SE with your 1040 by April 15
• If you expect to owe more than $1,000, look into quarterly estimated payments

For a broader overview of how income tax works before applying the self-employment layer, see Taxes Explained for Beginners: What You're Actually Paying and Why.

This post is for informational purposes only and does not constitute tax or financial advice. Tax rules for self-employed individuals and dependents involve multiple factors. Verify current thresholds at irs.gov. For complex situations, consult a qualified tax professional.