Small Business Tax Estimator

Estimate your federal, self-employment, and state taxes based on your business income, expenses, and entity type.

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Total business income before expenses
Deductible business expenses
Reasonable salary for S-Corp owners

Tax Estimate Summary

Total Estimated Tax
—
Federal + SE + State combined
Federal Income Tax
—
Self-Employment Tax
—
State Tax
—
Effective Tax Rate
—
Net Income After Tax
—

Quarterly Estimated Payments

Divide your annual tax liability into four equal payments

Q1
—
Due April 15
Q2
—
Due June 15
Q3
—
Due Sept 15
Q4
—
Due Jan 15

Tax Breakdown

Gross revenue—
Business expenses—
Net business income—
SE tax base (92.35% of net)—
Self-employment tax (15.3%)—
SE tax deduction (50%)—
Standard deduction—
QBI deduction (20%)—
Federal taxable income—
Federal income tax—
State income tax—
Total tax liability—
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Disclaimer: This tool is for informational and educational purposes only. It does not constitute financial, legal, tax, or professional advice. Results are estimates. Consult a qualified professional before making decisions. StellarClose LLC is not liable for actions taken based on this tool.