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Self-Employment Tax Calculator

Estimate Schedule SE payroll taxes from net business profit and existing W-2 Social Security wages.

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Editable assumptionsU.S. planning toolReviewed August 2026

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What this tool can tell you

Uses the 92.35% net-earnings factor, 15.3% base rate, and 2026 Social Security wage cap.

Important: This is a general educational planning tool. It does not create legal rights, make an official determination, or replace a current quote, signed agreement, government instruction, or advice from a qualified professional who knows your facts and jurisdiction.

Primary reference: IRS Publication 334. Rules, thresholds, rates, and forms can change; verify them before acting.