The Full Comparison: $100,000 Gross Income

Key tax differences between W-2 employment and self-employment at $100,000

FactorW-2 Employee ($100K salary)Self-Employed ($100K gross)
Gross income$100,000$100,000
Employer payroll taxes (hidden)$7,650 (paid by employer)$14,130 (fully visible as SE tax)
Business deductionsLimitedAll legitimate business expenses
Retirement: employee contribution$23,500 (401k)$23,500 (employee portion)
Retirement: employer contributionVaries (employer match)$18,500+ (employer portion of Solo 401k)
Health insurance deductibilityEmployer-sponsored (pre-tax)100% deductible as self-employed
QBI deductionNot available20% of qualified business income
Home office deductionNot available for W-2Available (Schedule C)

The W-2 employee at $100,000 sees a higher net paycheck — because the employer pays $7,650 in hidden payroll taxes they never see. The self-employed worker at the same gross sees $14,130 in SE tax — but has access to deductions and retirement contribution limits that can offset this difference substantially. The full comparison requires calculating after-tax, after-deduction take-home.

Net After-Tax Comparison at $100,000

After-tax comparison across employment and self-employment scenarios at $100,000 gross income

ScenarioTaxes PaidNet After-Tax (Approx.)Notes
W-2 at $100K (no match, no 401k)$23,000$77,000FICA + federal income tax
W-2 at $100K (max 401k)$17,500$59,000 take-home + $23,500 retirementMax 401k reduces income tax
SE at $100K (no deductions, no 401k)$23,790$76,210SE + income tax, standard deduction
SE at $100K ($20K business deductions, max Solo 401k)$9,500$47,000 take-home + $42,000 retirementOptimized SE tax strategy
SE at $100K fully optimized (S-corp)$14,000$44,000 take-home + $42,000 retirement + $14K savingsS-corp reduces SE tax further
💡The SE Advantage for High Savers

A self-employed worker who maximizes a Solo 401k can shelter $42,000+ annually in tax-advantaged retirement savings vs. only $23,500 for a W-2 employee (without employer match). This dramatically improves after-tax retirement wealth building — a key advantage of self-employment over time.

Calculate Your True After-Tax Self-Employment Income

Enter your gross SE income and deductions to see your after-tax take-home compared to equivalent W-2 employment.

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