Self-Employment Tax Calculator

Estimate only, not tax advice. This tool estimates federal self-employment tax only. It does not calculate income tax, state taxes, credits or special cases such as farm or church income. Confirm with the IRS instructions for Schedule SE or a tax professional.

Tax year

Filing status

Net self-employment earnings ($)

W-2 wages in the same year ($, optional)

Rates used (editable)

Social Security wage base ($)

Share of net earnings taxed (%)

Social Security rate (%)

Medicare rate (%)

Additional Medicare Tax rate (%)

Additional Medicare threshold ($)

Rates as of November 2026: IRS, Self-employment tax, IRS Topic 554, IRS Topic 560; wage base from the Social Security Administration.

Federal self-employment tax estimate for sole proprietors, freelancers and independent contractors. Not tax advice. Runs in your browser; nothing you enter is sent anywhere.