Self Employment Tax Rate For 2025

For tax year 2025, federal self-employment tax combines Social Security and Medicare components on net self-employment earnings. The Social Security rate applies up to the IRS-published wage base for 2025; the Medicare rate applies more broadly under Schedule SE rules.

TaxChecker documents these constants from IRS primary sources and displays the tax year and last reviewed date on calculator pages. When the IRS updates wage bases or rates for a new year, calculator registries and methodology notes are reviewed against the new publications.

The combined self-employment tax rate is often discussed as a single headline figure, but planning estimates should separate Social Security (capped by the wage base) from Medicare (uncapped at the base rate). Additional Medicare Tax may apply at higher income levels.

Pair rate information with your net profit estimate. The Self-Employed Tax Calculator accepts net self-employment income and filing status to model federal self-employment tax and income tax using the same engine as on-page worked examples.

Estimated tax worksheets may combine self-employment tax with income tax to arrive at annual federal liability. The Estimated Tax Calculator illustrates safe harbor concepts using user-entered prior-year tax information where applicable.

This rate summary is for educational planning with documented 2025 constants. It is not IRS certification and not individualized tax advice.