Tax research and calculator notes

W-2 vs. Self-Employed Tax Burden in 2025

Compare reproducible W-2 and self-employed 2025 tax-burden scenarios, including federal income tax, employee payroll tax, and self-employment tax.

By TrueTaxRate Editorial TeamTax year 2025

Updated July 9, 2026 · No credentialed tax review is claimed.

Direct answer

At the same gross amount, a self-employed worker usually has a different tax mix than a W-2 employee because self-employment tax covers both employee and employer Social Security and Medicare shares, subject to deductions and thresholds. The precise difference depends on business expenses, deductions, credits, state rules, and actual withholding.

Same gross income, different tax mechanics

Both scenarios use $100,000 of gross income in Texas, $30,000 of taxable spending, $1,800 monthly rent, 500 gallons of fuel, no dependents, and no actual-tax overrides. The self-employed model treats the entire amount as net self-employment income. That is a simplifying assumption: real business expenses change net earnings before self-employment tax.

2025 TrueTaxRate model outputs for two synthetic scenarios.
Income type	Federal income tax	W-2 payroll tax	Self-employment tax	State income tax	Total burden	TrueTaxRate
$100,000 W-2 employee	$13,614	$7,650	$0	$0	$28,461	28.5%
$100,000 self-employed worker	$8,631	$0	$14,130	$0	$29,959	30.0%

How to interpret the comparison

The W-2 result shows the employee share of FICA, not the employer match. The self-employed result includes the modeled self-employment tax and then applies the permitted half-tax deduction before estimating federal income tax. Neither result models every business deduction, retirement contribution, health-insurance deduction, entity election, or state-specific rule.

Treat this as a comparison of tax mechanics, not a recommendation to choose a work arrangement. Use actual net business income and document-based amounts before making a financial decision.

Compare your own W-2 and self-employed inputs

Calculation assumptions and limits

These are reproducible educational scenarios, not a quote, filing result, or advice. Federal, state, local, capital-gains, credits, AMT, payroll, sales, property, and gas inputs use 2025 source coverage. Enter actual values in the calculator when you have them.

Read the full methodology

Primary sources

IRS Revenue Procedure 2024-40 — 2025 federal rate schedules and standard deduction.
IRS self-employment tax guidance — How self-employment tax applies to net earnings.
Social Security Administration contribution and benefit base — 2025 Social Security wage base and rates.
Texas Comptroller sales and use tax information — Context for the shared Texas consumption assumption.