California Estimated Tax Facts
State Income Tax
Yes
Estimated Tax Form
Form 540-ES
File When You Owe
$500+ in state tax
Self-Employment Tax Rate
15.3% (federal)
California Quarterly Tax Calculator for Gig Drivers
California has its own state income tax on top of federal self-employment tax. Get your exact quarterly estimated tax payment, effective rate, and recommended set-aside — free, in seconds.
Calculate Your California Quarterly Payment
$0
Quarterly Payment
$0
Annual Tax
0%
Effective Rate
0%
Set Aside / Payout
California Specific Tax Notes
- California has the highest state income tax rates in the US
- Estimated tax required if you expect to owe $500+ in state tax
- California does NOT conform to all federal deductions — check state-specific rules
- Mental Health Services Tax adds 1% on income over $1M
Your California Kit: Forms, Reminders, Checklists
Q2 estimated payment due June 15. Get your California-specific forms, quarterly deadline reminders, mileage tracker, and a step-by-step action checklist.
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