About 64 million Americans performed freelance work in 2024, according to Upwork's annual study. If you are one of them and earned more than $400 in self-employment income, you owe self-employment tax, and it is probably more than you expect. The SE tax alone is 15.3% on top of your regular income tax.
What is a 1099 and who gets one
A 1099-NEC (Nonemployee Compensation) is the form clients send when they have paid you $600 or more during the tax year. You might receive multiple 1099s from different clients.
Important: you owe taxes on ALL self-employment income, even if you did not receive a 1099. If a client paid you $500, they are not required to send a 1099, but you still must report that income. The IRS matches 1099 forms to tax returns, and unreported income triggers automated notices.
According to IRS Topic 554, you must file a return and pay self-employment tax if your net self-employment earnings were $400 or more.
Self-employment tax: the 15.3% hit
As a W-2 employee, your employer pays half of Social Security (6.2%) and Medicare (1.45%). As a freelancer, you pay both halves:
- Social Security: 12.4% (on first $184,500 of net earnings in 2026)
- Medicare: 2.9% (no cap)
- Additional Medicare: 0.9% (on earnings above $200,000 for single filers)
Total SE tax: 15.3% on your net self-employment income (up to the Social Security wage base).
Example: $80,000 in freelance income
Net self-employment income: $80,000 SE tax base (92.35% of net): $73,880 SE tax (15.3%): $11,304
That $11,304 is on top of federal income tax. Many new freelancers are shocked by this number because they have never seen the employer's share of FICA before.
You can deduct half of your SE tax ($5,652) from your adjusted gross income, which reduces your income tax. But you still pay the full SE tax amount.
Use our 1099 self-employment tax calculator to see your exact numbers.
Federal income tax on top of SE tax
After accounting for the SE tax deduction, your freelance income is taxed at normal federal rates. For a single filer in 2026:
| Taxable Income | Rate | |---|---| | $0 - $12,400 | 10% | | $12,401 - $50,400 | 12% | | $50,401 - $105,700 | 22% | | $105,701 - $201,775 | 24% | | $201,776 - $256,225 | 32% | | $256,226 - $640,600 | 35% | | $640,601+ | 37% |
Example: $80,000 net freelance income (single, no other income)
- SE tax deduction (half of SE tax): $5,652
- Standard deduction (2026): $16,100 (IRS Rev. Proc. 2025-32)
- Taxable income before QBI deduction: $80,000 - $5,652 - $16,100 = $58,248
- QBI deduction: the lesser of 20% of QBI ($74,348 x 20% = $14,870) or 20% of taxable income before QBI ($58,248 x 20% = $11,650). Section 199A caps the deduction at the smaller of the two, so it is $11,650, not $14,870.
- Taxable income: $58,248 - $11,650 = $46,598
- Federal income tax: ~$5,344
- SE tax: $11,304
- Total federal tax: ~$16,648 (20.8% effective rate)
Compare that to a W-2 employee earning $80,000 who pays about $8,770 in federal income tax plus $6,120 in employee-side FICA = $14,890. Freelancers pay roughly $1,758 more on the same gross income, not the multiples people assume, because the QBI deduction still offsets a large share of the SE tax hit even after the 20%-of-taxable-income cap.
Run your own numbers through the federal income tax calculator once you know your net freelance income.
Quarterly estimated taxes
The IRS expects you to pay taxes throughout the year, not in one lump sum on April 15. If you owe more than $1,000 in taxes for the year, you must make quarterly estimated payments or face penalties.
2026 quarterly due dates (for income earned in 2026):
- Q1: April 15, 2026
- Q2: June 15, 2026
- Q3: September 15, 2026
- Q4: January 15, 2027
Use IRS Form 1040-ES to calculate and submit payments. You can pay online via IRS Direct Pay.
Safe harbor rule
You can avoid underpayment penalties by paying at least:
- 100% of last year's total tax liability, OR
- 90% of this year's total tax liability
If your income varies month to month, the safe harbor based on last year's liability is simpler. Just divide last year's total tax by four and pay that amount each quarter. For a closer look at how the underpayment penalty is calculated, see our guide to estimated tax penalties for freelancers.
Deductions that reduce your taxable income
This is where freelancing has a genuine advantage. Business expenses directly reduce your net income, lowering both income tax and self-employment tax.
Home office deduction
If you use part of your home exclusively and regularly for business, you can deduct it. Two methods:
- Simplified method: $5 per square foot, up to 300 sq ft = max $1,500
- Regular method: Actual expenses (rent, utilities, insurance, repairs) proportional to the percentage of your home used for business
A 200 sq ft office in a 2,000 sq ft apartment = 10% of rent, utilities, and renter's insurance.
Other common deductions
- Health insurance premiums: 100% deductible if you are not eligible for employer coverage
- Retirement contributions: SEP IRA (up to 25% of net earnings, max $72,000 for 2026), Solo 401(k) (up to $24,500 employee for 2026, plus 25% employer, both subject to the same $72,000 combined cap)
- Software and tools: Subscriptions, hardware, software you use for work
- Professional development: Courses, books, conferences related to your work
- Vehicle expenses: Business mileage at $0.70/mile (2025 rate, the latest published by the IRS at the time of writing) or actual expenses
- Internet and phone: Business-use percentage
Example: Deductions saving $5,000+ in taxes
Freelance income: $80,000
- Home office (simplified): -$1,500
- Health insurance: -$6,000
- Software/tools: -$1,200
- Vehicle (3,000 business miles): -$2,100
- Total deductions: $10,800
Revised net income: $69,200 SE tax savings: $1,526 Income tax savings: $964 Total tax savings: $2,490
Common mistakes freelancers make
Mistake 1: Not setting aside money for taxes. Set aside 25-30% of every payment you receive. Open a separate savings account and transfer immediately. You will need it for quarterly payments.
Mistake 2: Missing quarterly deadlines. The underpayment penalty is essentially interest on what you should have paid, set quarterly by the IRS. The rate was about 7% through 2025, the most recent figure published as of this writing, so check the current rate on irs.gov before you estimate a penalty. Pay quarterly even if the amounts are estimates.
Mistake 3: Not tracking expenses throughout the year. Scrambling to find deductions in April means you miss legitimate write-offs. Use a simple spreadsheet or app and log expenses weekly.
Mistake 4: Confusing gross revenue with net income. Your 1099 shows gross payments. Your taxable income is gross minus business expenses. Always calculate your net before estimating taxes.
Mistake 5: Skipping retirement contributions. A SEP IRA contribution reduces your federal taxable income, but it does not touch your net self-employment earnings or your SE tax bill, since SE tax is computed before any retirement deduction is applied. It does reduce your QBI deduction, though: a SEP contribution comes off both your QBI and the taxable-income figure the Section 199A cap is measured against. On the $80,000-net example above, the maximum SEP contribution is still about $14,870 (20% of net earnings after the SE tax deduction). Contributing it drops taxable income before QBI from $58,248 to $43,378, which pulls the QBI cap down from $11,650 to $8,676, and leaves final taxable income at $34,702. Federal income tax falls from about $5,344 to about $3,916, a savings of roughly $1,428. You still owe the full $11,304 in SE tax either way.
S-Corp election: when it makes sense
Once your net freelance income exceeds roughly $60,000-$80,000, an S-Corporation election can reduce your SE tax. As an S-Corp, you pay yourself a "reasonable salary" (subject to FICA) and take remaining profits as distributions (not subject to SE tax).
Example on $120,000 net income:
- Without S-Corp: SE tax on $120,000 = ~$16,956
- With S-Corp (paying yourself $70,000 salary): FICA on $70,000 = $10,710, distributions of $50,000 not subject to SE tax
- SE tax savings: ~$6,246/year
The tradeoff: S-Corps require a separate tax return (Form 1120-S), payroll processing, and additional accounting costs ($1,000-$3,000/year). The math usually works above $80,000 in net income, but talk to a CPA before you elect S-Corp status, since the IRS scrutinizes "reasonable salary" figures and getting that number wrong can undo the savings.
Key takeaways
- Self-employment tax is 15.3% and applies on top of regular federal income tax
- You must make quarterly estimated payments if you expect to owe more than $1,000
- Business deductions reduce both your income tax and self-employment tax
- Set aside 25-30% of every freelance payment for taxes immediately
- A SEP IRA or Solo 401(k) is one of the most powerful tax reduction tools for freelancers
- Consider S-Corp election once net income consistently exceeds $80,000 per year
Sources
- IRS Instructions for Schedule SE (Form 1040), self-employment tax computation: https://www.irs.gov/instructions/i1040sse
- IRS Rev. Proc. 2025-32, sections 4.01 and 4.14, tax year 2026 brackets and standard deduction: https://www.irs.gov/pub/irs-drop/rp-25-32.pdf
- Social Security Administration, "Cost-of-Living Increase and Other Determinations for 2026," 2026 wage base of $184,500: https://www.govinfo.gov/content/pkg/FR-2025-11-03/html/2025-19763.htm
- 26 U.S.C. Section 199A(a)(2)(A), qualified business income deduction capped at 20% of taxable income computed before the QBI deduction: https://www.law.cornell.edu/uscode/text/26/199A
- IRS Form 8995, Qualified Business Income Deduction Simplified Computation: https://www.irs.gov/forms-pubs/about-form-8995
Figures reflect 2026 federal rules and the state data in Calcora's tax tables. Reviewed by the Calcora editorial team.