The Full Comparison: $100,000 Gross Income
Key tax differences between W-2 employment and self-employment at $100,000
| Factor | W-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 deductions | Limited | All legitimate business expenses |
| Retirement: employee contribution | $23,500 (401k) | $23,500 (employee portion) |
| Retirement: employer contribution | Varies (employer match) | $18,500+ (employer portion of Solo 401k) |
| Health insurance deductibility | Employer-sponsored (pre-tax) | 100% deductible as self-employed |
| QBI deduction | Not available | 20% of qualified business income |
| Home office deduction | Not available for W-2 | Available (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
| Scenario | Taxes Paid | Net After-Tax (Approx.) | Notes |
|---|---|---|---|
| W-2 at $100K (no match, no 401k) | $23,000 | $77,000 | FICA + federal income tax |
| W-2 at $100K (max 401k) | $17,500 | $59,000 take-home + $23,500 retirement | Max 401k reduces income tax |
| SE at $100K (no deductions, no 401k) | $23,790 | $76,210 | SE + income tax, standard deduction |
| SE at $100K ($20K business deductions, max Solo 401k) | $9,500 | $47,000 take-home + $42,000 retirement | Optimized SE tax strategy |
| SE at $100K fully optimized (S-corp) | $14,000 | $44,000 take-home + $42,000 retirement + $14K savings | S-corp reduces SE tax further |
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.