California Self-Employed Taxes: The Complete 2026 Guide
California has the highest state income tax in the country — nine brackets rising to 13.3%. Stacked on federal income tax and 15.3% self-employment tax, a California freelancer's total effective rate commonly lands between 28% and 40%. This guide covers CA-specific rules, deductions, and quarterly payments, with our free [California self-employed tax calculator](https://gigmytax.com/calculators/california-self-employed-tax).
The three taxes on CA self-employment income
(1) Federal income tax at 10–37% marginal brackets. (2) Self-employment tax at 15.3% on 92.35% of net profit. (3) California state income tax at 1–13.3% marginal brackets. Plus 1% mental health surcharge above $1M.
California brackets for 2026 (single filer estimate)
1% on the first ~$10,750. 2% to ~$25,500. 4% to ~$40,250. 6% to ~$55,900. 8% to ~$70,600. 9.3% to ~$360,700. 10.3% to ~$432,800. 11.3% to ~$721,300. 12.3% above. Plus 1% surcharge above $1M.
California quarterly estimated tax
CA quarterly percentages are front-loaded: 30% by April 15, 40% by June 15, 0% by September 15, 30% by January 15. Yes — Q3 is zero. Miss this and CA charges its own underpayment penalty separately from federal. Pay via FTB Web Pay.
Deductions that lower BOTH federal and state
Business mileage at $0.70/mi, home office (simplified $5/sqft), business-use % of phone and internet, self-employed health insurance, and Solo 401(k) / SEP-IRA all reduce both federal AGI and CA taxable income. See our [1099 deductions checklist](https://gigmytax.com/blog/1099-deductions-checklist).
The CA LLC $800 minimum tax
Every California LLC owes an $800 annual franchise tax regardless of income — even first year. Above $250k of gross receipts, an additional LLC fee ($900–$11,790) applies. Sole proprietors and unincorporated freelancers do NOT owe the $800.
Worked example: $80k California freelancer
$80k gross − $8k expenses = $72k net. SE tax ≈ $10,175. Federal (single, standard, ½ SE) ≈ $8,900. CA state (marginal ~9.3%) ≈ $4,100. Total ≈ $23,175 (~29% of gross). Same freelancer in Texas would save ~$4,100. Verify: [California calculator](https://gigmytax.com/calculators/california-self-employed-tax).
AB5 and the ABC test
California's AB5 restricts which workers can be classified as 1099 contractors under the ABC test. This affects who hires you, not your tax filing — if you receive a 1099, file Schedule C and Schedule SE as normal.
Set-aside percentages for CA
Rule of thumb: 30% of every 1099 payout for a full-time CA freelancer in the 9.3% state bracket. Bump to 35% above ~$200k profit. Our [set-aside calculator](https://gigmytax.com/calculators/tax-savings-percentage) computes your exact number.
Bottom line
California costs a self-employed freelancer roughly $3,500–$6,000 more per year than a no-income-tax state at the same profit. Deductions and retirement contributions are your primary levers — max both.
Frequently asked questions
+How much tax do self-employed Californians pay?
Typically 28–40% of gross after deductions — 15.3% SE + federal 10–24% marginal + CA state 4–13.3% marginal.
+Do I have to pay CA quarterly estimated tax?
Yes if you will owe $500+ in CA tax for the year (lower threshold than federal). CA uses a 30/40/0/30 schedule — not evenly quarterly.
+Does the $800 LLC tax apply to sole proprietors?
No. Only LLCs, corporations, and LPs owe the $800 minimum. Sole proprietors filing on Schedule C do not.
+Can I deduct my SF Bay Area rent as home office?
Only the portion used exclusively and regularly for business. Simplified method caps at 300 sqft × $5 = $1,500. Actual method (% of rent) usually beats it in high-rent cities.
+What is the highest CA tax bracket for self-employed?
13.3% on income above ~$721k for single filers, plus 1% mental-health surcharge above $1M.
About the author
Javed Niamat · Founder & Editor, GigTax
Javed Niamat founded GigTax to make self-employment tax math understandable for rideshare drivers, delivery couriers, creators and freelancers. He builds and maintains every calculator on this site and writes the guides that explain the numbers behind them.
Related calculators
- Texas Self-Employed Tax CalculatorFederal + SE tax for Texas 1099 workers — no state income tax.
- California Self-Employed Tax CalculatorFederal + SE + CA state tax for California 1099 workers.
- Florida Self-Employed Tax CalculatorFederal + SE tax for Florida 1099 workers — no state income tax.
- New York Self-Employed Tax CalculatorFederal + SE + NY state (and NYC) tax for New York 1099 workers.
Related guides
- Texas Self-Employed Taxes: The Complete 2026 GuideHow self-employed taxes work in Texas for 2026: no state income tax, federal + SE tax, franchise tax, deductions, and a free calculator.
- Self-Employed Tax Estimator: The 2026 Federal, SE & State GuideHow to accurately estimate 2026 self-employed taxes — federal income tax, 15.3% SE tax, and state tax — with real formulas and a free calculator.
- Quarterly Taxes for Freelancers: The 2026 GuideHow freelancers pay 2026 quarterly estimated taxes. Due dates, safe-harbor rules, penalty math, and step-by-step instructions using IRS Direct Pay or EFTPS.
- How Much Should I Save for Taxes as a Self-Employed Worker in 2026The exact % of every 1099 payout to save for taxes in 2026. Covers federal, self-employment, and state tax for freelancers, gig workers, and contractors.
- The Complete 1099 Deductions Checklist for 2026Printable 1099 tax deductions checklist for 2026. Every Schedule C write-off freelancers and contractors miss — mileage, home office, phone, health, retirement.