What Percentage Is Self-Employment Tax

Everyone · Explainer · Updated October 1, 2026 · LearnLife Editorial

What Is Self-Employment Tax in Plain Words?

Self-employment tax is a tax you pay when you earn income working for yourself rather than as an employee. When you work for an employer, they withhold Social Security and Medicare taxes from your paycheck and pay a matching amount themselves. If you are self-employed—such as a freelancer, independent contractor, or small business owner—you pay both the employee’s and employer’s share of these taxes. This tax funds Social Security benefits, like retirement, disability, and survivor benefits, as well as Medicare, the federal health insurance program for people over 65 or with certain disabilities. Self-employment tax applies only to net earnings from your business or self-employment activities, meaning your income after you subtract allowable business expenses. This tax is separate from your federal income tax, which you also owe on your taxable income. Understanding what self-employment tax is helps you plan for the full tax amount due and the benefits you earn by paying it.

How Do You Calculate Self-Employment Tax?

The self-employment tax rate is fixed at 15.3%, which breaks down as 12.4% for Social Security and 2.9% for Medicare. You pay this on 92.35% of your net self-employment income—not the full amount—because the IRS allows you to reduce your income slightly to account for the “employer” portion of the tax you pay yourself. This adjustment helps keep the math fair, since employers normally pay half the Social Security and Medicare taxes for employees.

Worked Example:

Imagine you earn $50,000 in net income from your freelance graphic design services after deducting expenses like software subscriptions and home office costs.

1. Multiply your net earnings by 92.35% to find your taxable amount for self-employment tax: $50,000 × 0.9235 = $46,175
2. Calculate the self-employment tax by multiplying this amount by 15.3%: $46,175 × 0.153 = $7,061.78

You would owe about $7,062 in self-employment tax for the year. This amount is in addition to your regular federal income tax, which is calculated separately based on your total taxable income.

If your net earnings are below $400, you usually do not owe self-employment tax. Always check the current IRS rules each year, as thresholds and rates can change.

Why Does Self-Employment Tax Matter to You?

Understanding self-employment tax matters because it directly impacts how much you owe the government and how much you keep from your earnings. Without planning for this tax, you might face a surprise bill or penalties at tax time. Paying self-employment tax also builds your eligibility for Social Security benefits, including retirement income, Medicare coverage, and disability protections. If you don’t pay this tax, you may not earn credits toward these crucial benefits. For those earning income from side gigs, freelance work, or a business, factoring self-employment tax into your budgeting is critical. It helps you set aside enough money throughout the year, avoid underpayment penalties, and keep your finances in order.

What Are Common Tax Terms People Often Confuse with Self-Employment Tax?

Several tax terms can confuse people when learning about self-employment tax:

• Self-Employment Tax vs. Income Tax: Self-employment tax covers Social Security and Medicare taxes on your self-employed earnings. Income tax is a separate tax on your total taxable income, funding government operations and services.
• Sales Tax: A tax charged on goods or services sold to customers, unrelated to self-employment tax.
• Self-Employment Tax Rate vs. Income Tax Rate: The self-employment tax rate is fixed at 15.3%, while income tax rates vary based on your income, filing status, and deductions.
• Net Earnings vs. Gross Income: Net earnings mean your income after subtracting business expenses. Self-employment tax applies only to net earnings, not gross income.
• Schedule SE vs. Schedule C: Schedule SE is the IRS form you use to calculate self-employment tax. Schedule C reports your business income and expenses to determine your net earnings.

Knowing these distinctions helps avoid mistakes on your tax return and ensures you pay the correct tax amounts.

How Do You Report and Pay Self-Employment Tax?

To report self-employment tax, you use IRS Schedule SE, which you file alongside your annual Form 1040 income tax return. Here’s the typical process:

1. Calculate Your Net Earnings: Use Schedule C (Profit or Loss from Business) or Schedule C-EZ to report all your business income and subtract expenses to find your net profit.
2. Complete Schedule SE: This form uses your net earnings to calculate the self-employment tax you owe, applying the 15.3% rate to 92.35% of your net income.
3. Report Your Income Tax: Include your net profit and self-employment tax on your Form 1040, which calculates your income tax owed after deductions and credits.
4. Pay Estimated Taxes: Because self-employment tax is not withheld like an employee’s payroll taxes, you may need to make quarterly estimated tax payments to the IRS to cover both income and self-employment taxes. This helps avoid large lump-sum payments or penalties.

You can file Schedule SE electronically or on paper. Keep accurate records of all income and expenses throughout the year to make this process straightforward.

Can You Reduce How Much Self-Employment Tax You Pay?

While you cannot avoid paying self-employment tax on your net earnings, you can reduce your overall tax bill with these strategies:

• Deduct Business Expenses: Keep track of all legitimate expenses related to your work—such as supplies, equipment, home office costs, mileage, and professional services. These expenses reduce your net earnings, lowering self-employment tax.
• Deduct Half of Your Self-Employment Tax: On your Form 1040, you can deduct half of your self-employment tax as an adjustment to income, reducing your taxable income for income tax purposes.
• Consider a Retirement Plan: Contributions to certain retirement plans for self-employed individuals may lower your taxable income.
• Explore Legal Business Structures: Sometimes, forming an S corporation or other entity can change how taxes are applied, but this requires professional advice.

Always keep detailed records and receipts to support your deductions in case of an IRS audit. Using tax preparation software or consulting a tax professional can help you identify all possible deductions and credits.

What Are the Next Steps if You Are Self-Employed?

If you earn money through self-employment or plan to start, follow these steps to handle self-employment tax responsibly:

1. Track Income and Expenses: Maintain organized records of every payment you receive and business expense you incur. Apps, spreadsheets, or accounting software can help.
2. Calculate Estimated Taxes Quarterly: Use IRS Form 1040-ES to estimate and pay your taxes four times a year. This prevents surprises and penalties from underpayment.
3. File Schedules C and SE with Form 1040: At tax time, complete these forms to report income and calculate self-employment tax.
4. Set Aside Money Regularly: Save about 25-30% of your earnings to cover income and self-employment taxes combined.
5. Get Help When Needed: If you feel unsure, consult IRS resources, tax software, or a tax professional. IRS publications and free assistance programs can guide you through calculations and filings.
6. Stay Updated: Tax laws and thresholds change. Check IRS announcements yearly to stay informed about any changes affecting self-employment tax.

Following these practical steps helps you avoid penalties, manage your finances, and build your Social Security and Medicare benefits.

Frequently asked questions

Do I owe self-employment tax if I have a part-time side gig?

Yes, if your net earnings from self-employment are $400 or more in a year, you must pay self-employment tax on those earnings.

Can I pay self-employment tax in installments?

While the IRS expects quarterly estimated tax payments, you can sometimes arrange installment agreements if you cannot pay your full tax bill at once. Contact the IRS or a tax professional for options.

How does self-employment tax affect Social Security benefits?

Paying self-employment tax earns you credits toward Social Security benefits, including retirement, disability, and survivor benefits, similar to payroll taxes paid by employees.

What happens if I don’t pay self-employment tax?

Not paying self-employment tax can result in penalties, interest, and loss of Social Security and Medicare benefits eligibility. It’s important to file and pay on time.

Are there any exceptions to paying self-employment tax?

Certain religious groups or specific types of income may be exempt. Also, if your net earnings are under $400, you generally do not owe self-employment tax.