Self-Employed vs Employee: How Much More Tax Do You Pay? (2026)

When you move from W-2 employment to self-employment, the most significant tax change is not income tax — it is the self-employment (SE) tax. As an employee, your employer pays half of your Social Security and Medicare. As a self-employed worker, you pay both halves. Understanding the full cost difference, and the deductions that partially offset it, is essential for pricing your services and managing your cash flow.

The Core Difference: Who Pays the Employer Half of FICA

As a W-2 employee earning $100,000 in Texas, you pay $7,650 per year in employee FICA — your 6.2% Social Security and 1.45% Medicare shares. Your employer also pays a matching $7,650 (approximately) that never appears on your pay stub. As a self-employed worker with the same net earnings, you are responsible for both halves — a total SE tax of approximately $14,130 on $92,350 of net self-employment income.

How the SE Tax Is Calculated

Self-employment tax applies to 92.35% of net self-employment earnings — not 100%. This reduction accounts for the fact that employees are not taxed on the employer's FICA match. The IRS computes it as: net self-employment income × 92.35% × 15.3% (the combined employer-plus-employee FICA rate). On $100,000 in net self-employment income, the SE tax base is approximately $92,350, yielding SE tax of approximately $14,130. See the IRS Self-Employed Individuals Tax Center for current guidance.

The SE Tax Deduction

To partially offset the burden of paying both FICA halves, self-employed workers can deduct half the SE tax — approximately $7,065 — as an above-the-line adjustment to income when calculating adjusted gross income. This reduces the income subject to federal and state income tax, partially compensating for the employer-side FICA obligation. The deduction appears on Schedule SE and flows to Form 1040 Line 15.

Quarterly Estimated Tax Payments

W-2 employees have federal and state withholding automatically remitted every pay period. Self-employed workers have no withholding mechanism — they must estimate their annual tax liability (income tax plus SE tax) and pay it in four installments. Missing or underpaying estimated payments results in an IRS underpayment penalty. A conservative approach is to pay 100% of the prior year's total tax liability (or 110% if prior-year AGI exceeded $150,000) in four equal payments.

The Break-Even Rate for Self-Employment

To net the same after-tax income as a W-2 employee earning $100,000, a self-employed worker generally needs higher gross revenue — typically 25%–35% more, depending on benefits costs and state taxes. This gap accounts for: SE tax (covering both FICA halves), self-funded health insurance (previously employer-subsidized), no employer retirement match, and administrative overhead. Build this cost into your pricing from the start, not after your first quarterly payment arrives.

Business Expense Deductions

Unlike employees, self-employed workers can deduct ordinary and necessary business expenses from income, reducing both income tax and SE tax. A home office (used exclusively for business), business vehicle mileage at the IRS standard rate, professional development, software subscriptions, and self-employed health insurance premiums all reduce net self-employment income. Keep meticulous records throughout the year — these deductions can meaningfully close the tax gap between employee and self-employed status.

Frequently Asked Questions

Figures and methods are based on official-source data encoded in the calculator. Not tax advice. Review the methodology and consult a qualified professional for your situation.