Freelancer self-employment tax in the US: 1099-NEC, Schedule C, and the moves that legally cut your bill

If you freelance in the US, the IRS treats you as a business, even if it’s just you and a laptop. That means one extra tax most employees never see — self-employment tax — plus the responsibility to pay as you go. Here’s how the pieces fit, and what to claim.

How 1099-NEC and Schedule C fit together

Clients who pay you $600 or more in a year are generally required to send you (and the IRS) a Form 1099-NECreporting what they paid. You report all of your freelance income — whether or not a 1099 arrives — on Schedule C (Profit or Loss from Business), which attaches to your personal Form 1040.

On Schedule C you subtract your business expenses from your gross income. What’s left is your net profit, and that number drives both your income tax and your self-employment tax.

What self-employment tax actually is

When you’re an employee, you and your employer each pay half of Social Security and Medicare. As a freelancer you’re both, so you pay the full amount — roughly 15.3%of your net self-employment earnings — on top of regular income tax.

Two things soften it:

• You deduct the employer-equivalent half of SE tax when calculating your income tax.
• The Social Security portion only applies up to an annual wage base that the IRS adjusts each year; the Medicare portion has no cap.

Quarterly estimated taxes: don’t skip them

No employer is withholding tax from your freelance income, so the IRS expects you to pay it yourself throughout the year. If you’ll owe a meaningful amount, you generally make four estimated tax payments, due in April, June, September, and January. Miss them, and you can owe an underpayment penalty even if you pay in full at filing time.

A common safe-harbor approach is to pay in either a set percentage of last year’s tax or most of this year’s expected tax — the exact percentages depend on your income, so confirm the current safe-harbor rules with a CPA or on IRS.gov. A simple habit: set aside roughly 25–30% of every payment in a separate account and pay from there each quarter.

6 deductions US freelancers consistently miss

1. The home office deduction

If you use part of your home regularly and exclusively for business, you can deduct it — either with the simplified per-square-foot method or the actual-expense method. Many freelancers skip this out of unfounded audit fear; it’s a legitimate deduction when you qualify.

2. Self-employed health insurance

If you pay for your own health insurance and aren’t eligible for a spouse’s employer plan, you can often deduct the premiums — this is an above-the-line deduction, not just a Schedule C expense.

3. Retirement contributions (SEP-IRA / Solo 401(k))

A SEP-IRA or Solo 401(k) lets self-employed people shelter substantially more than a regular IRA. This is the single biggest lever most freelancers ignore — it cuts taxable income now and builds retirement savings.

4. The QBI deduction

The qualified business income (QBI) deduction can let eligible pass-through business owners deduct a percentage of their qualified business income. It phases out at higher incomes and has profession limits, so check whether you qualify — but it’s valuable when you do.

5. Software, subscriptions, and equipment

Your design tools, hosting, laptop, and professional subscriptions are ordinary business expenses. Larger equipment may be deductible in the year you buy it under Section 179 / bonus depreciation rules.

6. Mileage and business travel

Driving to client sites or business meetings is deductible at the IRS standard mileage rate (which changes annually). Keep a contemporaneous log — that’s what makes it defensible.

Should you form an LLC or elect S-corp?

Many freelancers operate as a sole proprietor, which is the default and the simplest. An LLC mainly adds liability separation; by itself it doesn’t change your federal taxes. Once your net profit is consistently high, an S-corp electioncan reduce self-employment tax by splitting income into salary and distributions — but it adds payroll, paperwork, and cost. This is a run-the-numbers-with-a-CPA decision, not a rule of thumb.

Keep clean records all year

The freelancers who hate tax season are the ones reconstructing a year of transactions in April. Track income and expenses as you go, keep business and personal accounts separate, and your Schedule C practically fills itself.

When you’re running invoices through Infacam, we automatically segment your revenue by client and quarter — the numbers you need for Schedule C and your estimated payments are right on your dashboard.