Freelancer and Self-Employed Tax Guide 2026

Self-Employment Tax: The 15.3% Nobody Warns You About

W-2 employees pay 7.65% in FICA taxes (Social Security + Medicare) — their employer pays the other 7.65%. Self-employed individuals pay both halves: 15.3% on net self-employment income (12.4% Social Security on first $176,100; 2.9% Medicare with no cap; plus 0.9% Additional Medicare Tax above $200,000). The SE tax deduction (50% of SE tax is deductible above-the-line) partially offsets this.

Quarterly Estimated Tax Payments

No employer withholds taxes for you — you must pay quarterly estimated taxes or face underpayment penalties. 2026 due dates: April 15, June 16, September 15, January 15, 2027.

Safe harbor rule: Pay 100% of last year's tax liability (110% if income over $150,000) to avoid underpayment penalties regardless of actual income fluctuations.

Key Self-Employed Deductions

Home office: Exclusive regular business use. Simplified method: $5/sq ft, max 300 sq ft = $1,500/year. Actual expenses method is often higher.
Business vehicle: IRS standard mileage rate (67 cents/mile in 2024; check current rate). Log every business mile.
Health insurance premiums: 100% deductible above-the-line if you're not eligible for employer coverage.
Equipment and software: Section 179 allows 100% immediate deduction of qualifying business equipment.
Professional development, subscriptions, contractors.

Retirement Accounts for the Self-Employed

SEP-IRA: Contribute up to 25% of net earnings or $70,000/year (2026). Simple to set up, large contribution limits.
Solo 401k: Contribute as both employee ($23,500) and employer (25% of net earnings). Total limit up to $70,000. Allows Roth contributions and loans.
Simple IRA: For small businesses with employees — less relevant for sole proprietors.

Frequently Asked Questions

Do I need to pay taxes if I earned under a certain amount freelancing?

You must file a tax return if net self-employment earnings exceed $400. SE tax applies even on small amounts. There's no standard deduction equivalent for SE tax — that 15.3% applies from dollar one.

What records should I keep as a freelancer?

Keep: all invoices and receipts, bank and credit card statements showing business expenses, mileage logs (date, destination, business purpose, miles), home office measurements and utility bills, quarterly payment confirmation numbers. IRS typically audits 3 years back; keep records 7 years for safety.