If you left a W-2 job to freelance, one number probably caught you off guard the first time you did your taxes: 15.3%. That's the self-employment tax rate, and it exists because when you work for yourself, there's no employer quietly covering half your Social Security and Medicare bill anymore. You cover both halves.
This guide breaks down exactly how self-employment tax works in 2026, how much you'll actually owe at different income levels, and which deductions can legally shrink that bill.
What Is Self-Employment Tax, Exactly?
Self-employment tax isn't a separate, extra tax layered on top of everything else — it's the self-employed version of FICA. Employees and employers each pay 7.65% toward Social Security and Medicare (6.2% + 1.45%). When you're self-employed, you're both parties, so you pay the full 15.3% yourself.
It applies to net earnings from a sole proprietorship, single-member LLC, freelance gig, or independent contractor work reported on a 1099-NEC. It does not apply to W-2 wages from a regular job — if you freelance on the side, only the freelance income is subject to it.
You only need to file Schedule SE if your net self-employment earnings hit $400 or more in a year. Below that threshold, self-employment tax doesn't kick in — though you may still owe regular income tax.
How Self-Employment Tax Is Calculated for 2026
The math has three steps, and skipping any one of them is the most common reason freelancers overestimate what they owe.
Step 1: Find your net earnings. Take your total freelance/business income and subtract your legitimate business expenses (software subscriptions, home office costs, equipment, mileage, etc.). This is your net profit from Schedule C.
Step 2: Apply the 92.35% rule. You don't pay SE tax on 100% of your net profit — only on 92.35% of it. This adjustment exists because employees never pay Social Security or Medicare tax on the employer's matching contribution, so this factor puts self-employed people on roughly equal footing.
Step 3: Apply the 15.3% rate — up to a cap. The 15.3% splits into:
- 12.4% for Social Security, but only on net earnings up to the 2026 wage base of $184,500 (up from $176,100 in 2025)
- 2.9% for Medicare, which has no income ceiling at all
Once your net earnings cross $184,500, your marginal SE tax rate drops sharply — from 15.3% down to just 2.9%, since the Social Security portion stops applying.
There's also an Additional Medicare Tax of 0.9% on self-employment income above $200,000 (single filers) or $250,000 (married filing jointly), which has no employer-side offset.
Worked Example: Freelancer Earning $70,000
Say you're a freelance graphic designer with $70,000 in net profit after expenses.
| Step | Calculation | Amount |
|---|---|---|
| Net profit | — | $70,000 |
| Taxable SE base | $70,000 × 92.35% | $64,645 |
| Social Security (12.4%) | $64,645 × 12.4% | $8,016 |
| Medicare (2.9%) | $64,645 × 2.9% | $1,875 |
| Total SE tax | — | — $9,891 |
That's on top of your regular federal income tax — which is why many new freelancers feel blindsided by their first tax bill.
The Deduction That Softens the Blow
Here's the part most freelancers don't know about until their accountant mentions it: you can deduct half of your self-employment tax as an above-the-line deduction on Schedule 1. In the example above, that's roughly a $4,945 deduction that lowers your taxable income for income-tax purposes — even if you don't itemize. It mirrors the fact that an employer's half of FICA is a normal, deductible business expense; you're just claiming your own equivalent.
This deduction reduces your income tax, not the SE tax itself. You still write the full $9,891 check to the IRS — but your income tax bill shrinks.
Other Ways Freelancers Legally Lower Their Tax Bill
- Qualified Business Income (QBI) deduction — Most sole proprietors and single-member LLCs can deduct 20% of their qualified business income directly off their taxable income. This is separate from the SE tax deduction and can be significant at higher income levels, though it phases out for certain service businesses above set income thresholds.
- Self-employed health insurance deduction — If you pay for your own health insurance and aren't eligible for an employer plan (spouse's job included), you can typically deduct 100% of those premiums.
- SEP IRA or Solo 401(k) contributions — Retirement contributions reduce your taxable income now while building savings for later. A Solo 401(k) in particular allows both "employee" and "employer" contributions, often letting freelancers shelter more income than a traditional IRA would.
- Legitimate business expense write-offs — Home office (using the actual method or the simplified $5-per-square-foot rate), a portion of internet and phone bills, professional software, and business mileage all reduce the net profit that SE tax is calculated on in the first place.
None of these eliminate self-employment tax entirely — everyone earning above $400 in net self-employment income owes it — but stacked together, they meaningfully reduce the total tax bill.
Quarterly Estimated Taxes: The Part That Trips People Up
Because no employer withholds tax from your freelance income, the IRS expects you to pay as you go, four times a year, using Form 1040-ES. Missing this isn't just inconvenient — it triggers an underpayment penalty even if you pay everything owed by April.
The general rule of thumb: if you expect to owe $1,000 or more in tax for the year, you need to make quarterly payments. Many freelancers set aside 25–30% of every payment they receive into a separate savings account specifically for taxes, so the quarterly due date never comes as a surprise.
Self-Employment Tax vs. Income Tax: What's the Difference?
These are two completely separate taxes that both apply to freelance income:
- Self-employment tax funds Social Security and Medicare — a flat 15.3% (with the wage-base cap described above), regardless of your tax bracket.
- Income tax funds general government spending and is calculated on a progressive bracket system, after all your deductions.
You pay both. A freelancer in the 22% federal income tax bracket earning $70,000 in net profit is paying roughly 15.3% in SE tax on top of their income tax bracket rate — which is exactly why freelance tax bills tend to feel heavier than a W-2 employee's, even at the same take-home income.
Frequently Asked Questions
What is the self-employment tax rate for 2026?
15.3%, split into 12.4% for Social Security (capped at $184,500 of net earnings) and 2.9% for Medicare (uncapped).
Do I have to pay self-employment tax if I made under $400?
No. The IRS threshold for filing Schedule SE is $400 in net self-employment earnings. Below that, SE tax doesn't apply, though income tax rules may still require you to file.
Can I deduct self-employment tax?
Yes — you can deduct half of it as an above-the-line deduction, which lowers your income tax. It doesn't reduce the SE tax itself.
Do LLC owners pay self-employment tax?
Single-member LLCs taxed as a default disregarded entity generally do, the same as sole proprietors. LLCs that elect S-corp taxation can sometimes reduce SE tax exposure by splitting income into salary and distributions, though that comes with its own payroll and compliance requirements.
How often do freelancers pay taxes?
Quarterly, via estimated tax payments (Form 1040-ES), plus the annual tax return in April.
Is self-employment tax the same as income tax?
No. They're calculated separately and both apply to your net freelance income — SE tax funds Social Security/Medicare, while income tax is based on your overall taxable income and bracket.
The Bottom Line
Self-employment tax is the cost of being your own employer for Social Security and Medicare purposes — 15.3% on 92.35% of your net earnings, with the Social Security portion capping out at $184,500 in 2026. It's a real number, but it's also a predictable one once you understand the formula, and several legitimate deductions — the half-SE-tax write-off, QBI, health insurance, and retirement contributions — can meaningfully soften it.
If you want to see your exact number instead of estimating by hand, run your income through a US self-employment tax calculator — it applies the 2026 wage base and rates automatically. And if some of the terminology here is still new, the tax terms glossary for beginners is a good next stop.
For the official rules straight from the source, the IRS's Self-Employment Tax page and the Social Security Administration's wage base announcements are the two most authoritative references for freelancers who want to double-check figures each year.