California Freelancer
Quarterly Tax Calculator
Estimate your 2026 federal and California state quarterly estimated tax payments — including self-employment tax. Enter your income and get a clear breakdown in seconds.
Your Info
Your total freelance / self-employment revenue before expenses
Software, equipment, home office, professional fees, etc.
W-2 wages, rental income, interest, dividends, etc.
Your results will appear here
Enter your income details and click Calculate
Sponsored by LedgerLens
Track your freelance income and expenses automatically — so your next tax estimate takes seconds.
Disclaimer: This calculator provides estimates only and is not tax advice. Results are based on 2025 IRS federal tax brackets and 2024 California FTB rates — 2026 rates may differ due to annual inflation adjustments. This tool does not account for itemized deductions, AMT, NIIT, state tax credits, retirement contributions (SEP-IRA, Solo 401k), or all income types.
If you also have W-2 employment income, self-employment tax calculations may be less accurate because this tool does not reduce the Social Security wage base by employer withholdings or combine wages for the Additional Medicare Tax threshold.
Consult a licensed tax professional (CPA or EA) for personalized advice before making payments. The IRS and FTB impose penalties for underpayment — consider the safe harbor rule (pay 100% of prior year tax, or 110% if prior AGI > $150K).
Pay federal estimated taxes at IRS.gov/payments and California at FTB.ca.gov.