PAY, TAX, DEBT, AND HOUSEHOLD PLANNING
Self-Employment Tax Calculator
Estimate the Social Security and Medicare parts of self-employment tax from net profit and wages you enter.
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Enter your values and select Calculate. Your result stays on this device.
How it works
The model uses 92.35% of net profit, then applies the 12.4% Social Security portion up to the wage-base room and the 2.9% Medicare portion.
Assumptions
This simplified calculation excludes Additional Medicare Tax, special occupations, other income, the income-tax deduction effect, credits, and filing rules.
About this calculator
This self-employment tax scenario models the Social Security and Medicare portions of Schedule SE-style planning from net profit and wage inputs. It is deliberately narrower than a full tax return so the calculation and its limits stay visible.
How to use it
- Enter net self-employment profit after business expenses for your scenario.
- Enter wages already subject to Social Security tax, if any.
- Use the current Social Security wage base for the tax year you are modeling.
- Treat the result as a planning estimate and reconcile it with current IRS instructions and your records.
Use case
self employment tax calculator: a clear planning check
Estimate the Social Security and Medicare parts of self-employment tax from net profit and wages you enter. The stated formula, assumptions, and result limits remain visible so the calculation can be checked in context.
Use a clear self employment tax calculator scenario with values you can verify before relying on the result.
Source and update
Last reviewed: 2026-08-10
IRS — self-employment tax guidanceFrequently asked questions
What rate does the calculator use?
It models the 12.4% Social Security portion and 2.9% Medicare portion after applying the stated net-earnings convention.
Does it calculate income tax too?
No. Federal income tax, Additional Medicare Tax, credits, deductions, state tax, and special cases are not fully calculated here.
Can I file Schedule SE from this result?
No. Use current IRS forms, instructions, and actual records for a return or payment.
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