California Quarterly Tax Calculator
Calculate your estimated quarterly tax payments for federal and California state taxes. Designed for self-employed individuals, freelancers, and independent contractors.
Quarterly Payment Amount
$6,570
Per quarter (4 remaining)
Annual Tax Breakdown
2025 Payment Schedule
Jan 1 - Mar 31
Due: April 15, 2025
$6,570
Apr 1 - May 31
Due: June 16, 2025
$6,570
Jun 1 - Aug 31
Due: September 15, 2025
$6,570
Sep 1 - Dec 31
Due: January 15, 2026
$6,570
Don't miss your quarterly payments!
The IRS may charge penalties and interest if you underpay or pay late. Consider setting up automatic payments or calendar reminders.
What This Calculator Includes
Self-Employment Tax
Social Security & Medicare
Federal Income Tax
IRS brackets 2025
CA State Tax
California tax rates
Payment Schedule
2025 due dates
Why Use This Calculator?
Avoid Penalties
Stay compliant and avoid IRS underpayment penalties and interest
Budget Accurately
Know exactly how much to set aside for quarterly taxes
Plan Cash Flow
See upcoming payment dates and amounts to manage cash flow
Official References
This calculator uses current federal and California tax rates and schedules:
- IRS Estimated Tax Guidelines
Federal quarterly tax requirements and Form 1040-ES
- California Estimated Tax Payments (FTB)
State quarterly tax requirements and Form 540-ES
- IRS Self-Employment Tax
Social Security and Medicare tax information
This calculator provides estimates based on 2025 tax rates. Your actual tax liability may vary based on deductions, credits, and other factors. Consult a tax professional for personalized advice.