What Is Self Employment Tax?
Self employment tax is the tax that self-employed individuals must pay to cover Social Security and Medicare contributions. In the United States, employees usually split these payroll taxes with their employer. However, freelancers, independent contractors, and small business owners are responsible for paying the full amount themselves.
This tax applies to income earned from freelance work, consulting, gig economy jobs, and other forms of self-employment. If your net earnings from self-employment exceed the IRS threshold, you are generally required to calculate and pay self employment tax in addition to regular income tax.
Understanding how self employment tax calculation works is important for freelancers, entrepreneurs, and independent workers so they can properly estimate their tax obligations and avoid surprises during tax season.
Self Employment Tax Rate
The self employment tax rate in the United States is typically 15.3 percent. This percentage represents two separate components:
12.4 percent for Social Security
2.9 percent for Medicare
Together, these two taxes fund federal programs that provide retirement benefits, disability benefits, and healthcare coverage for eligible individuals.
Self Employment Tax Formula
The simplified formula used to estimate self employment tax is:
Self Employment Tax = Net Self Employment Income × 15.3%
However, the IRS requires an adjustment where only 92.35 percent of net earnings are subject to the self employment tax calculation.
The more accurate formula is:
Self Employment Tax = Net Earnings × 92.35% × 15.3%
This adjustment reflects the fact that employees normally share payroll taxes with their employers.
Example Self Employment Tax Calculation
Suppose a freelancer earns $60,000 in net self employment income during the year.
Step 1: Adjust income for the IRS calculation
60,000 × 92.35% = 55,410
Step 2: Apply the self employment tax rate
55,410 × 15.3% ≈ $8,475
In this example, the estimated self employment tax would be approximately $8,475.
Self Employment Tax Example Table
| Net Income | Taxable Portion (92.35%) | Estimated Self Employment Tax |
|---|---|---|
| $40,000 | $36,940 | $5,653 |
| $60,000 | $55,410 | $8,475 |
| $80,000 | $73,880 | $11,303 |
This table demonstrates how self employment tax increases as net income rises.
Who Must Pay Self Employment Tax?
Individuals who earn income from self-employment are generally required to pay this tax if their net earnings exceed $400 during the year. This rule applies to freelancers, consultants, gig workers, independent contractors, and many small business owners.
Common professions that often deal with self employment tax include graphic designers, software developers, photographers, rideshare drivers, content creators, and online sellers.
Because these workers do not have employers withholding payroll taxes automatically, they must calculate and pay taxes themselves.
Self Employment Tax Deduction
One important advantage for self-employed individuals is that they can deduct half of their self employment tax when calculating their adjusted gross income.
This deduction helps reduce taxable income because self-employed workers effectively pay both the employer and employee portions of payroll taxes.
Although the deduction does not reduce the self employment tax itself, it may lower the overall income tax owed.
Estimated Quarterly Taxes
Many self-employed individuals must make estimated quarterly tax payments to the IRS throughout the year. These payments typically include both income tax and self employment tax.
Quarterly estimated payments help prevent large tax bills and penalties when filing an annual tax return.
Freelancers often calculate expected income and taxes ahead of time to determine how much should be paid each quarter.
Using a Self Employment Tax Calculator
Self employment tax calculations can become complex because they involve income adjustments, tax thresholds, and multiple tax components.
A self employment tax calculator allows users to quickly estimate how much tax may be owed based on their net earnings.
The Roboculator Self Employment Tax Calculator helps freelancers, entrepreneurs, and independent contractors estimate payroll tax obligations and better plan their finances throughout the year.