$
$
SE Tax (15.3%)
—
Social Security + Medicare
Federal Income Tax
—
estimated
Total Tax Burden
—
SE + federal income tax
Set aside per $1,000 earned
—
recommended tax reserve
Effective Tax Rate
—
of gross income
Tax Breakdown
Gross income—
Business expenses—
Net self-employment income—
× 92.35% (SE tax base)—
SE Tax (15.3%)—
SE Tax deduction (½ SE Tax)—
Adjusted Gross Income (AGI)—
Standard deduction—
Taxable income—
Total estimated tax owed—
2026 Quarterly Payment Due Dates
Q1
Due Apr 15
—
Q2
Due Jun 16
—
Q3
Due Sep 15
—
Q4
Due Jan 15
—
⚠️ Disclaimer: This calculator provides estimates based on 2026 tax rates and standard deductions. It does not account for state taxes, additional deductions, credits, or complex tax situations. Always consult a CPA or tax professional for accurate tax advice.