See all 50 states on one map and compare side-by-side. Start 7-day free trial — no card required
California
Employee Obligations (Which Returns YOU Must File)
If you physically work in California, file a nonresident California return (tax rate: 1%-13.3% (highest in the nation)). Then file your Connecticut return and claim the Schedule 1 credit so you don't get taxed twice on the same income.
Employer Obligations (What Your Employer Must Withhold & Remit)
Register for withholding, unemployment, and Employment Training Tax. Must withhold employee SDI/PFL contributions. Unemployment is 1.5%-6.2% on the first $7,000. Employment Training Tax is 0.1% on the first $7,000.
City & Local Income Taxes (Extra Filings Beyond the State Return)
No California city charges individuals an income tax. San Francisco's payroll and gross receipts tax is employer-level only.
Other Paycheck Deductions (Disability, Paid Leave, Unemployment)
State Disability Insurance (SDI) at 1.2% of entire salary with no cap. Covers disability and paid family leave.
Related guides
More from Connecticut · Cross-State Work
- Connecticut → Pennsylvania
- Connecticut → Rhode Island
- Connecticut → South Carolina
- Connecticut → South Dakota
- Connecticut → Tennessee
Moving to California from elsewhere · Cross-State Work
This is general information, not tax or legal advice. Laws change frequently. Always consult a licensed CPA or tax attorney for your specific situation. All information researched as of March 21, 2026.