Self-Employment Tax Calculator
Business Income
Business Expenses (Write-offs)
Income vs. Expenses
Income Breakdown
Understanding Self-Employment Tax with Our Free Calculator
If you work for yourself as a freelancer, independent contractor, or small business owner, you are responsible for paying self-employment (SE) tax. This tax covers your Social Security and Medicare contributions, which an employer would typically handle. Our Free Self-Employment Tax Calculator makes it easy to estimate what you'll owe by allowing you to input your detailed income and expenses, helping you plan for your tax obligations throughout the year.
Understanding the Calculator Fields
Our Self-Employment Tax Calculator is designed to be a comprehensive tool for freelancers and business owners. Here's how to use it:
- Business Income: Enter all your revenue. This includes amounts from 1099 forms as well as any other income you receive directly from clients.
- Business Expenses: This is where you can significantly reduce your taxable income. Enter all your "ordinary and necessary" business expenses into the relevant categories. Common examples include advertising, software subscriptions, office supplies, business travel, and a portion of your car expenses. The total of these expenses is subtracted from your gross income to determine your net earnings.
- Tax Year: Select the relevant tax year, as the Social Security wage base limit can change annually.
How the Self-Employment Tax Formula Works
This Free Calculator follows the official IRS formula to determine your tax liability. Here's a step-by-step breakdown of the process:
- Calculate Net Earnings: First, the calculator subtracts your total business expenses from your total business income. This gives you your "Net Earnings from Self-Employment."
- Calculate Earnings Subject to SE Tax: Not all of your net earnings are subject to the tax. You multiply your total net earnings by 92.35% to find the taxable amount.
- Calculate Social Security & Medicare Tax: The calculator applies the 12.4% Social Security tax up to the annual income limit and the 2.9% Medicare tax to all of your taxable earnings.
- Total SE Tax & Deduction: The two taxes are added together for your total SE tax liability. The calculator also shows you the deductible portion (one-half of your SE tax), which you can use to lower your separate income tax bill.
By using this detailed Self-Employment Tax Calculator, you can get a clear and accurate estimate of your tax burden and avoid any surprises.
Disclaimer
This calculator is intended for informational and estimation purposes only and does not calculate your income tax liability. It should not be considered legal or financial advice. Please consult with a qualified tax professional or financial advisor for advice tailored to your specific situation.