Business & Tax Calculators for the Self-Employed

S Corp savings, salary vs. distribution, quarterly taxes, and take-home pay — free tools built for freelancers, business owners, and anyone paying their own taxes.

✓ 100% Free ✓ No Login ✓ Private — Stays on Your Device ✓ Saves in Your Browser

🧭 Self-Employed? Start Here

Before choosing a calculator, these guides can help you understand your options:

Types of Business: 4, 5, or 7? A Clear Breakdown

Guide

S Corp Tax Savings: How Much Could You Actually Save?

Guide

Quarterly Estimated Taxes: The Real Math

Guide

🧮 Business & Tax Calculators

Most Popular

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S-Corp Tax Calculator

See if electing S-Corp status actually saves you money — real numbers, not guesswork.

Real Savings EstimateSE Tax

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S Corp Salary Calculator

Find a reasonable salary/distribution split and see your net SE tax savings after real costs.

Salary SplitAudit-Risk Flagging

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Quarterly Estimated Tax Calculator

See your safe harbor target and exact per-quarter payment with real 2026 due dates.

Safe Harbor2026 Due Dates

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Paycheck Calculator

See your real take-home pay after federal tax, state tax, and FICA.

Take-Home PayFICA Breakdown

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📖 Business & Tax Guides

Guide

Types of Business: 4, 5, or 7? A Clear Breakdown

10 min read · July 2026

Guide

S Corp Tax Savings Calculator: Estimate How Much You Could Save

12 min read · July 2026

Guide

Quarterly Estimated Taxes: The Real Math (Not Just 25% of Last Year)

8 min read · July 2026

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