Independent Contractor Taxes: A Complete Guide
Quick Answer
Independent contractors pay both income tax and a 15.3% self-employment tax on their net earnings, with no employer to withhold taxes or split FICA costs. You are responsible for making quarterly estimated payments, tracking all expenses for deductions, and filing Schedule C with your annual return. A good rule of thumb is to set aside 25-30% of your gross income for federal taxes.
Your Tax Obligations as an Independent Contractor
1. Federal Income Tax
Your net self-employment income (gross income minus business expenses) is added to any other income on your Form 1040 and taxed through the normal progressive brackets.
2. Self-Employment Tax
You owe 15.3% (12.4% Social Security + 2.9% Medicare) on 92.35% of your net SE income. This replaces the FICA taxes that W-2 employees split with their employer. See how SE tax works.
3. State Income Tax
If you live in a state with income tax, your contractor income is subject to state tax too. States like Texas and Florida charge nothing; California and New York charge up to 13.3% and 10.9% respectively.
4. Quarterly Estimated Payments
Without an employer to withhold, you must send quarterly payments to the IRS (and your state) four times per year.
Real Example With Actual Numbers
Amanda is an independent UX designer in California earning $105,000 from three clients. She has $18,000 in business expenses.
| Item | Amount |
|---|---|
| Gross 1099 income | $105,000 |
| Business expenses | -$18,000 |
| Net self-employment income | $87,000 |
| SE tax base (92.35%) | $80,344.50 |
| Self-employment tax | $12,293 |
| SE deduction (half) | -$6,146 |
| AGI | $80,854 |
| Standard deduction | -$15,000 |
| QBI deduction (est.) | -$13,000 |
| Taxable income | $52,854 |
| Federal income tax | ~$6,850 |
| California state tax | ~$3,400 |
| CA SDI | ~$957 |
| Total annual tax | ~$23,500 |
| Take-home pay | ~$63,500 (60.5% of gross) |
Amanda's quarterly estimated payment should be about $5,875 to the IRS plus $1,090 to California. Use the freelance calculator to estimate your payments.
Essential Deductions for Independent Contractors
Track these expenses to reduce your tax bill:
- Home office: $1,500 (simplified) or more (regular method)
- Equipment and technology: Computers, cameras, tools
- Software: Subscriptions, cloud services
- Professional development: Courses, certifications, books
- Mileage: 67 cents/mile in 2025
- Health insurance: 100% of premiums (above-the-line deduction)
- Retirement: Solo 401(k) up to $69,000 total or SEP-IRA up to 25% of net SE income
See the complete deduction list.
Independent Contractor Tax Calendar
| Date | Action |
|---|---|
| January 31 | Clients must send you 1099-NEC forms |
| April 15 | Q1 estimated payment due + annual return due |
| June 15 | Q2 estimated payment due |
| September 15 | Q3 estimated payment due |
| January 15 | Q4 estimated payment due |
Common Mistakes to Avoid
- Not saving enough for taxes: Set aside 25-30% of every payment immediately
- Missing quarterly payments: Results in penalties even if you pay in full by April 15
- Not tracking expenses: Every untracked deduction is money lost. See Schedule C guide
- Confusing gross with net: Your 1099 shows gross payments. You report NET income (gross minus expenses)
- Not considering business structure: If you earn over $70,000, an S-Corp election or LLC could save on SE tax
Should You Be a Contractor?
Compare the full financial picture of 1099 vs W-2 before accepting contractor work. Make sure the rate is 25-30% higher than an equivalent salary to compensate for extra taxes and missing benefits.
Model your independent contractor income at the freelance calculator or compare it to a W-2 salary at the SalaryHog calculator.