Chapter 1 · 6 min read · Updated Oct 2026

How Self-Employment Taxes Actually Work

15.3%
self-employment tax
~20%
total federal tax on $60k profit
$400
profit that triggers SE tax

The short answer

When you work for yourself, nobody takes taxes out of your pay. You owe the same income tax as everyone else, plus a 15.3% self-employment tax that replaces the Social Security and Medicare your employer used to split with you. And you pay it yourself, four times a year.

For a typical freelancer earning $60,000 in profit, that adds up to about $12,000 in federal tax, or 20% of profit. The biggest surprise for most people: at that level, self-employment tax is more than double their income tax.

Where $60,000 of self-employment profit goes in 2026 for a single filer: $8,478 self-employment tax, $3,559 federal income tax, $47,963 left before state tax.

The rest of this chapter shows exactly where that number comes from. Then Chapter 2 turns it into a percentage to set aside from every payment.

The two taxes you owe

1. Self-employment tax (15.3%). This is Social Security and Medicare for people who work for themselves.

  • When you had a job, 7.65% came out of your paycheck and your employer quietly paid another 7.65%. Now you’re both, so you pay all 15.3%.
  • It’s 12.4% for Social Security, on earnings up to $184,500 in 2026, plus 2.9% for Medicare, with no cap.
  • It’s charged on 92.35% of your profit, not 100%. That’s the IRS’s way of giving you the same break an employer gets.
  • You get to deduct half of it when you figure your income tax.

2. Federal income tax. The same brackets everyone pays, from 10% to 37%. It’s charged on your profit after:

  • the standard deduction ($16,100 single, $32,200 married filing jointly, for 2026),
  • half of your self-employment tax, and
  • the 20% qualified business income (QBI) deduction, a big one most new freelancers don’t know they get.

Most states add their own income tax on top. A few, like Texas and Florida, don’t have one.

Worked example: a $60,000 freelancer

Maya is a freelance designer. In 2026 she bills $72,000 and spends $12,000 on software, a laptop and her home office, so her profit is $60,000. She’s single with no other income.

Self-employment tax

StepAmount
Profit$60,000
× 92.35% = net earnings from self-employment$55,410
Social Security: 12.4%$6,871
Medicare: 2.9%$1,607
Self-employment tax$8,478

Income tax

StepAmount
Profit$60,000
− half of SE tax−$4,239
= adjusted gross income$55,761
− standard deduction−$16,100
− 20% QBI deduction−$7,932
= taxable income$31,729
Federal income tax (10% and 12% brackets)$3,559

Total federal tax: $12,037, or 20% of her profit. Her self-employment tax is more than double her income tax.

As an employee earning the same $60,000 salary, her share of Social Security and Medicare would have been $4,590. Being her own employer costs her about $3,900 more in payroll tax. That’s the price of the freedom, and it’s why the write-offs in Chapter 5 matter so much.

Who counts as self-employed

If you earn money working for yourself, you’re self-employed for tax purposes, even if it’s a side gig. That includes:

  • Freelancers and independent contractors paid on a 1099
  • Consultants, coaches and creators
  • Online sellers, Etsy and Amazon shops, and dropshippers
  • Rideshare and delivery drivers
  • Single-member LLCs that haven’t elected S-corp status

The $400 rule: if your net earnings from self-employment are $400 or more for the year, you owe self-employment tax and must file a return, even if you owe no income tax.

You owe tax whether or not you get a 1099. Clients only send 1099s above certain thresholds, and payment apps have their own rules. The IRS still expects you to report every dollar.

How you actually pay

During the year: quarterly estimated taxes. If you’ll owe $1,000 or more, you send the IRS four payments, due April 15, June 15, September 15 and January 15. Chapter 3 covers how much and how.

In April: your tax return. Along with your regular Form 1040, you file:

  • Schedule C, which shows your business income and expenses and arrives at your profit.
  • Schedule SE, which calculates your self-employment tax from that profit.

The quarterly payments you made get subtracted, and you pay or get back the difference. Tax software handles both schedules; Chapter 6 covers filing day.

The habit that makes it painless: move a percentage of every payment into a separate tax account the day it arrives. Chapter 2 tells you your number.

Myths that cost people money

“I’m in a low bracket, so I won’t owe much.” Self-employment tax is 15.3% starting from your first $400 of profit, regardless of your bracket. A $20,000 side business still owes about $2,800 of it.

“I didn’t get a 1099, so it’s not taxable.” All income is reportable, 1099 or not.

“An LLC lowers my taxes.” On its own, no. A single-member LLC is taxed exactly like a sole proprietor. It protects your personal assets, not your tax bill. The S-corp election is what can change your taxes (Chapter 7).

“Write-offs make things free.” A $1,000 business expense saves you roughly $230 to $320 in federal tax, not $1,000. Only spend on things the business actually needs.

FAQ

Do I pay self-employment tax on top of my W-2 job’s Social Security? Yes, on your side profit, until your combined earnings pass the $184,500 Social Security cap. Medicare applies to all of it.

Does self-employment tax count toward my Social Security benefits? Yes. It’s the same system, and it builds your future benefit just like payroll tax does.

Can I deduct half of my self-employment tax? Yes, automatically on your return. It lowers your income tax, not the SE tax itself.

Sources

General education, not tax advice. Numbers are 2026 federal figures.

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