Self-Employment Tax Explained: What Freelancers Actually Owe

When you’re employed, your employer pays half of your Social Security and Medicare taxes (7.65%). When you’re self-employed, you pay both halves: 15.3% on top of income tax. On $100,000 in freelance income, that’s $15,300 before a single dollar of income tax.

The total tax burden shocks most new freelancers. At $100K self-employment income, single filer: federal income tax ~$13,600 + self-employment tax ~$14,130 + state tax (varies) = roughly 30–40% total effective rate. In California, a $100K freelancer keeps about $62K. In Texas, about $72K.

Deductions are your best tool. The IRS lets you deduct the employer-equivalent half of self-employment tax (7.65%) from your income. Home office, equipment, software, mileage, health insurance premiums, and retirement contributions (SEP IRA up to $69,000) all reduce taxable income.

Quarterly estimated taxes are mandatory if you’ll owe $1,000+ at filing. Miss a quarter and you’ll face underpayment penalties. Set aside 25–35% of every payment you receive into a separate account. Automate this — don’t trust yourself to save it manually.

S-Corp election can save significant self-employment tax for freelancers earning $80K+. By paying yourself a ‘reasonable salary’ and taking the rest as distributions, you only pay FICA on the salary portion. At $150K income with a $90K salary, this saves ~$9,000/year in self-employment tax.

The bottom line for freelancers: your tax rate is 10–15% higher than an equivalent W-2 employee. Factor this into your rates. If a full-time job pays $100K, you need to charge at least $130K–$140K as a freelancer to match the same take-home pay after self-employment tax, benefits, and retirement contributions.

Run this analysis on your actual salary.