Self-Employment Tax for California (2026)

How This Calculator Works in California

This calculator estimates your total self-employment tax in California, including the federal 15.3% SE tax and California's state income tax. Enter your net SE income to see your liability.

California Overview

Self-employed workers in California pay the federal 15.3% SE tax plus state income tax at up to 13.3%, for a combined burden of approximately 28.6%. Self-employed workers must pay both state income tax (up to 13.3%) and SDI (1.1%). Quarterly estimated payments are required for both state and federal taxes. Consider forming an S-Corp to reduce SE tax on higher incomes.

How California Compares

California's combined SE burden of 28.6% compares to Oregon at 25.2% and Nevada at 15.3%. State income tax creates meaningful differences between states.

California's state income tax on SE income rate of 13.3% compares to a national average of approximately 5.04%. This is above the national average.

Tips for California Residents

• 1Federal self-employment tax is 15.3% (12.4% Social Security + 2.9% Medicare) regardless of state.
• 2California adds state income tax at up to 13.3% on self-employment income, for a combined rate of about 28.6%.
• 3Self-employed workers must pay both state income tax (up to 13.3%) and SDI (1.1%). Quarterly estimated payments are required for both state and federal taxes. Consider forming an S-Corp to reduce SE tax on higher incomes.
• 4Deduct half of your SE tax on your federal return and track all business expenses to minimize net self-employment income.
• 5Consider whether an S-Corp election could reduce your SE tax burden if your net income exceeds $50,000-$60,000.

Frequently Asked Questions