Self Employment Tax Explained 2026

What Self-Employment Tax Actually Is

Self-employment tax is the freelancer's version of the payroll taxes that employees pay through their paychecks. When you work a W-2 job, you pay 7.65% of your wages toward Social Security and Medicare, and your employer pays the other 7.65% behind the scenes. When you are self-employed, there is no employer — so you pay both halves, for a combined rate of 15.3% on your net self-employment earnings.

That 15.3% breaks into two pieces: 12.4% for Social Security, which applies up to the annual Social Security wage base (adjusted each year for inflation), and 2.9% for Medicare, which has no earnings cap. Higher earners also face an additional 0.9% Medicare surtax on self-employment income above the threshold (generally $200,000 for single filers, $250,000 for joint filers). This tax is separate from — and in addition to — your federal income tax.

How It Is Calculated on Net Profit

Self-employment tax applies to your net earnings, not your gross revenue. You start with your freelance income, subtract your ordinary and necessary business expenses (this is where Schedule C comes in), and the result is your net profit. The tax is then figured on 92.35% of that net profit — a small adjustment that exists because employees don't pay payroll tax on the employer's half of the contribution.

A quick illustration: if your net freelance profit is $60,000, your self-employment tax base is roughly $55,410, and the 15.3% tax comes to about $8,478. Note the word about — the Social Security wage base and Medicare surtax can shift the exact figure. This is why deductions matter so much for freelancers: every legitimate business expense reduces the income subject to both income tax and self-employment tax. Our Freelance Tax Estimator runs this calculation for you automatically.

Self-Employment Tax vs. Income Tax

These are two different taxes stacked on top of each other, and confusing them is one of the most common freelancer mistakes. Income tax is based on graduated brackets and applies to your total taxable income. Self-employment tax is a flat-ish 15.3% that applies only to your self-employment earnings, and it exists to fund your future Social Security and Medicare benefits.

Here is the silver lining: you get to deduct one-half of your self-employment tax from your income when calculating your income tax. This deduction is taken on Schedule SE and flows to your Form 1040 — you do not need to itemize to claim it. It does not reduce the self-employment tax itself, but it softens the income-tax side. Our deeper comparison in freelance vs W-2 taxes walks through the full picture.

Who Owes It and Who Doesn't

Generally, you owe self-employment tax if your net earnings from self-employment are $400 or more for the year. Below that threshold, you typically do not owe SE tax — though you may still owe income tax on the earnings depending on your total income. Employees whose only income is W-2 wages do not pay self-employment tax at all; they pay the employee half of payroll taxes through withholding.

There are a few special cases worth knowing. Members of certain religious groups can apply for exemption on approved grounds. Real estate rental income is generally not subject to SE tax unless you are a real estate dealer. And if you have both W-2 wages and freelance income in the same year, your W-2 wages count toward the Social Security wage base first, which reduces the portion of your freelance income subject to the 12.4% piece.

Reducing the Bite Legitimately

You cannot opt out of self-employment tax, but you can manage it. Maximizing legitimate business deductions directly lowers your net earnings — the base the tax applies to. Retirement contributions to a SEP IRA or Solo 401(k) reduce your income tax and, for the employer-contribution portion mechanics, can shape your overall tax picture. Some established freelancers explore S-corporation election, where only a reasonable salary is subject to payroll taxes while distributions are not — but that involves payroll costs, extra filings, and strict rules, so it typically only makes sense once profits are consistently well into the tens of thousands.

The most reliable first step is simply knowing your number. Run your profit through the Freelance Tax Estimator each quarter, set aside the SE tax portion before you spend it, and the 15.3% stops being a surprise. For the full quarterly rhythm, read our quarterly estimated tax guide.

Planning Around SE Tax Across the Year

Because self-employment tax applies from the first dollar of net earnings, timing your income and expenses across the calendar year is legitimate tax planning. Bunching deductible purchases into a high-profit year, or deferring a big invoice from late December to early January, shifts profit between tax years — and with it, the 15.3% SE tax. These moves don't change what you ultimately earn; they change when you're taxed on it, which can keep more of a windfall year out of higher brackets.

If you mix W-2 wages with freelance income, coordinate the two: your salary fills the Social Security wage base first, so freelance earnings above the remaining cap face only the 2.9% Medicare portion. And if your freelance profits grow consistently large, discuss S-corporation election with a tax professional — it changes how earnings are characterized, but brings payroll obligations and costs that only pay off past a certain profit level. For most freelancers, the highest-ROI moves remain simpler: maximize legitimate deductions (see our deductions list), make quarterly payments on time (see our quarterly guide), and model everything in the Freelance Tax Estimator before year-end.