Wealthy PotSelf-Employment Tax 2026: Rate, $184,500 Cap and Calculator
An employee splits Social Security and Medicare tax with the employer. When you work for yourself you are both, so you pay both halves: that is self-employment tax. For 2026 it is 15.3% of 92.35% of your net profit, with the Social Security part capped at $184,500 of earnings. The calculator below runs the 2026 Schedule SE for you, including the effect of a W-2 job and the 0.9% Additional Medicare Tax.
Table of Contents
Self-Employment Tax Calculator
Enter your expected 2026 net profit: business income minus business expenses, the bottom line of Schedule C. If you have more than one business, combine them; a loss in one reduces the profit of another. Add W-2 wages if you also have a job.
The Short Answer
| 2026 figure | Amount |
|---|---|
| Self-employment tax rate | 15.3%: 12.4% Social Security + 2.9% Medicare |
| Applied to | 92.35% of net profit ("net earnings from self-employment") |
| Social Security cap | $184,500 of combined wages and net earnings (2025: $176,100) |
| Medicare cap | None |
| Additional Medicare Tax | 0.9% above $200,000 ($250,000 married filing jointly, $125,000 separately) |
| Minimum to owe it | $400 of net earnings ($108.28 of church employee income) |
| Deduction | Half of self-employment tax, from income for income tax |
| Effective rate below the cap | About 14.13% of profit |
Sources: IRC sections 1401 and 1402; 2026 Schedule SE (draft); Social Security Administration notice, 90 FR 49047; Form 8959.
How It Is Figured: Schedule SE Step by Step
- Net profit. Start with the profit from Schedule C (or your share of partnership self-employment income).
- Multiply by 92.35%. This mirrors the employer's half of payroll tax. The law allows a deduction of half the combined rate, 7.65%, so 100% minus 7.65% leaves 92.35% (IRC section 1402(a)(12)). If the result is under $400, stop: you owe no self-employment tax.
- Social Security part. 12.4% of the smaller of your net earnings or the room left under the $184,500 base after any W-2 Social Security wages.
- Medicare part. 2.9% of all your net earnings, with no cap.
- Add them. The total goes on Schedule 2 of Form 1040, and half of it is deducted as an adjustment to income.
Example: $60,000 of profit gives $55,410 of net earnings. Social Security tax is $6,870.84 and Medicare tax $1,606.89, for $8,477.73 in total. Half, $4,238.86, is deducted from income.
Self-Employment Tax by Profit
| 2026 net profit | Self-employment tax | Share of profit |
|---|---|---|
| $10,000 | $1,413 | 14.1% |
| $25,000 | $3,532 | 14.1% |
| $50,000 | $7,065 | 14.1% |
| $100,000 | $14,130 | 14.1% |
| $150,000 | $21,194 | 14.1% |
| $200,000 | $28,234 | 14.1% |
| $250,000 | $29,573 | 11.8% |
| $300,000 | $30,912 | 10.3% |
Our arithmetic, no W-2 wages. Above $199,783 of profit, net earnings pass $184,500 and only the 2.9% Medicare part keeps growing. The 0.9% Additional Medicare Tax is extra (next sections).
If You Also Have a W-2 Job
The $184,500 Social Security cap is shared between wages and self-employment. Wages count first: Schedule SE subtracts your Social Security wages from $184,500, and only what is left can be charged the 12.4%. The 2.9% Medicare part applies to all your net earnings regardless of wages.
| Wages + side profit | Self-employment tax | Why |
|---|---|---|
| $70,000 + $20,000 | $2,825.91 | Plenty of room under the cap: full 15.3% on $18,470 |
| $150,000 + $60,000 | $5,884.89 | Only $34,500 of room left: 12.4% on that, 2.9% on all $55,410 |
| $184,500 + $100,000 | $2,678.15 | Cap already reached by wages: Medicare part only |
Our arithmetic with the 2026 Schedule SE method. Use Social Security wages and tips (W-2 boxes 3 and 7, Schedule SE line 8a), which can be higher than box 1.
The cap is per person. Married couples each figure self-employment tax on their own earnings, and if both spouses have self-employment income, each files a separate Schedule SE (Schedule SE instructions).
The 0.9% Additional Medicare Tax
On top of self-employment tax, a 0.9% Additional Medicare Tax applies once wages and self-employment earnings together pass $200,000 ($250,000 married filing jointly, counting both spouses; $125,000 married filing separately). The thresholds are written into the law and are not adjusted for inflation. Wages use up the threshold first, so the tax on self-employment earnings is 0.9% of the amount above whatever threshold is left (Form 8959, Part II).
- $300,000 of profit, no wages, single: $277,050 of net earnings, so $693.45.
- $150,000 of wages plus $60,000 of profit, single: $50,000 of threshold left, so 0.9% of $5,410 = $48.69.
The Additional Medicare Tax is not part of the deduction for half of self-employment tax (IRC section 164(f) excludes it).
The Deduction for Half of It
You deduct half of your self-employment tax when you figure adjusted gross income, the way an employer deducts its share of payroll tax. The IRS notes that this only lowers income tax; it does not change your net earnings or the self-employment tax itself. On $60,000 of profit the deduction is $4,238.86, which saves about $933 if your top income tax bracket is 22%.
Two other things to know:
- Health insurance: the self-employed health insurance deduction lowers income tax but does not reduce self-employment tax. The only exception in the law was tax year 2010 (IRC section 162(l)(4)). Some IRS web pages still describe the 2010 rule.
- QBI deduction: the 20% qualified business income deduction is also an income tax deduction only. Our estimated tax guide covers its 2026 limits.
What does lower self-employment tax is lower net profit: every legitimate business expense on Schedule C reduces it.
Who Pays and Who Does Not
- Pays: sole proprietors and independent contractors (Schedule C), and partners on the self-employment earnings reported to them on Schedule K-1. You must file Schedule SE if net earnings are $400 or more, or church employee income is $108.28 or more.
- Age does not matter. The IRS says the rules apply no matter how old you are, even if you already receive Social Security or Medicare.
- Limited partners generally exclude their distributive share, except guaranteed payments for services (IRC section 1402(a)(13)).
- Working abroad: the foreign earned income exclusion does not reduce self-employment tax, but the US has social security agreements with many countries so that you generally pay into only one system (Schedule SE instructions).
- Family caregivers who work in the home of an elderly or disabled person are typically that person's employees, not self-employed (IRS).
What You Get for It: Social Security Credits
Self-employment tax funds your own Social Security record, the same way payroll tax does for employees. In 2026 you earn one credit (a "quarter of coverage") for each $1,890 of combined wages and net earnings, up to four a year, so $7,560 earns the full four (Social Security Administration notice, 90 FR 49047). The Social Security Administration also uses the earnings on Schedule SE to figure your benefits (Schedule SE instructions).
If your net earnings are small or you had a loss, the optional methods on Schedule SE may still give you Social Security credit, up to $7,560 of net earnings for 2026. That figure is from the draft 2026 Schedule SE; the conditions are in its instructions, and the optional methods also change the earned income credit and other credits.
Paying It During the Year
No one withholds self-employment tax for you. It is part of the tax you prepay through quarterly estimated payments, together with income tax, and the IRS generally expects payments once you would owe $1,000 or more. For tax year 2026 the remaining due date is January 15, 2027. Our estimated tax payments guide and calculator works out how much to pay and the penalty on any missed quarter.
A simple habit: set aside about 15% of each payment you receive for self-employment tax, plus your income tax rate on top. The calculator above shows your exact figure.
Sources & Methodology
- Schedule SE (Form 1040) and its instructions, 2026 drafts: 92.35%, the $184,500 base, $400 and $108.28, optional method amounts, joint returns, more than one business.
- Form 8959: Additional Medicare Tax thresholds and the Part II method.
- Social Security Administration, "Cost-of-Living Increase and Other Determinations for 2026", 90 FR 49047 (govinfo): $184,500 base, $1,890 quarter of coverage.
- Internal Revenue Code sections 162(l), 164(f), 1401 and 1402 (Cornell LII).
- IRS, "Self-employment tax (Social Security and Medicare taxes)": who must pay, age, caregivers. That page still shows 2024 figures, so we take numbers from the forms instead.
Method notes. Tables and examples are our arithmetic for tax year 2026 using the Schedule SE method; amounts are rounded to the cent or dollar as shown. The calculator handles one person's nonfarm self-employment income and W-2 Social Security wages; it leaves out church employee income, farm income, the optional methods and railroad retirement compensation. The 2026 Schedule SE and Form 8959 were drafts as of October 13, 2026.
This article is educational and is not tax advice. Wealthy Pot is not affiliated with the IRS or the Social Security Administration. Figures were checked against IRS forms, the Internal Revenue Code and the SSA's 2026 notice on 2026-10-13.
FAQ
What is the self-employment tax rate for 2026?
15.3%: 12.4% for Social Security on up to $184,500 of earnings and 2.9% for Medicare on all of it, applied to 92.35% of net profit.
Is self-employment tax the same as income tax?
No. It is a separate tax on top of income tax. You can owe self-employment tax even when you owe no income tax, for example when the standard deduction covers all your income.
Do I pay self-employment tax on a 1099-NEC?
Yes, if the income is from a business you run and your net earnings reach $400. Report it on Schedule C and the tax on Schedule SE.
How can I lower my self-employment tax?
Only by lowering net profit, mainly by claiming every legitimate business expense. Income tax deductions such as the self-employed health insurance deduction, the deduction for half of self-employment tax and the QBI deduction do not reduce it.
Do I have to pay it if I am over 65 and collecting Social Security?
Yes. Age and benefit status do not matter. The Social Security Administration uses your Schedule SE earnings when it figures your benefits.
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"Self-Employment Tax 2026: Rate, $184,500 Cap and Calculator." Wealthy Pot, 2026. https://wealthypot.com/self-employment-tax/
