California side hustle taxes: what you actually owe

· · 6 min read

Educational information only — not legal or tax advice. Consult a CPA for your situation.

California is one of the most expensive states for self-employed people. Between federal self-employment tax and California's high income tax rates, side hustlers in CA can owe 35–40% of net profit. Here's the full breakdown.

⚠️ Bottom line upfront: A California side hustler earning $15,000 net typically owes $4,500–$5,500 in combined federal and state taxes. That's before the $800 LLC franchise tax if you've formed an LLC. Set aside 35% of every payment you receive.
California side hustle taxes — state income tax and CA-specific rules

California's tax rates for self-employed individuals

TaxRateNotes
Federal SE tax15.3%On net profit — applies in all states
Federal income tax10–22%Based on total taxable income
CA state income tax1–9.3%Progressive — most side hustlers pay 4–6%
CA SDI (disability)1.1%Applies to self-employed who opt in

California's top marginal rate is 13.3%, but most side hustlers with moderate income fall into the 4–6% bracket for state purposes. Still — stacked on top of federal obligations, the total is significant.

California quarterly estimated taxes

California requires quarterly estimated payments independently of the federal schedule — and the California deadlines are slightly different:

Note: California has no Q3 estimated payment — the weighting is front-loaded. This catches people off guard. Pay at ftb.ca.gov (California Franchise Tax Board) separately from your IRS federal payments.

In this guide
  1. California's tax rates for self-employed individuals
  2. California quarterly estimated taxes
  3. The California LLC question
  4. Does Etsy collect California sales tax for me?
  5. California-specific deductions worth knowing
  6. Practical steps for California side hustlers
  7. Frequently asked questions
  8. Bottom line

The California LLC question

California charges an $800 minimum annual franchise tax on all LLCs operating in the state, starting in the first full year of operation. This is in addition to the federal and state income taxes you already owe.

For a side hustler earning $5,000/yr net, an $800 annual LLC fee represents 16% of net income — significant. At $20,000+/yr, it becomes more reasonable relative to the liability protection it provides.

One relief: California waived the first-year franchise tax for LLCs formed in 2021–2023. As of 2025 that waiver has ended — new LLCs owe $800 in their first tax year (though not in the first calendar year of operation in some cases — confirm with a CPA).

Does Etsy collect California sales tax for me?

Yes. Under California's marketplace facilitator law, Etsy collects and remits California sales tax on all Etsy sales. You don't need to register for a California seller's permit just for Etsy sales.

If you sell through your own website or invoice clients directly in California, you may need to collect and remit sales tax separately. The California threshold for economic nexus is $500,000 in sales — most small side hustlers are well below this.

California-specific deductions worth knowing

California generally conforms to federal deductions, with some exceptions:

Practical steps for California side hustlers

  1. Set aside 35% of every payment — slightly higher than the national 30% recommendation due to California's state tax
  2. Make both federal AND California quarterly payments — two separate payment portals, two separate schedules
  3. Open a business bank account — especially important in California, where audit rates for self-employed individuals are higher than the national average
  4. Track all expenses meticulously — every deduction reduces both federal and California taxable income
  5. Decide on LLC carefully — the $800/yr minimum franchise tax is a real cost that takes longer to justify in California than in other states
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Frequently asked questions

How much do California side hustlers pay in taxes?

California side hustlers typically owe 33–40% of net profit in combined taxes — federal self-employment tax (15.3%), federal income tax (10–22%), and California state income tax (1–9.3%). Set aside at least 35% of every payment.

Does California have quarterly estimated taxes for self-employed people?

Yes. California requires quarterly estimated payments separately from federal payments. California's schedule is slightly different: 30% due April 15, 40% due June 15, and 30% due January 15. Pay at ftb.ca.gov.

How much does an LLC cost in California?

California charges an $800 minimum annual franchise tax on all LLCs, plus a $70 formation fee. This makes California one of the most expensive states for LLC formation. At lower income levels the cost may not be justified.

Does Etsy collect California sales tax for me?

Yes. Under California's marketplace facilitator law, Etsy collects and remits sales tax on all California Etsy sales. You don't need to register for a California seller's permit just for Etsy sales.

Do I need a business license for a side hustle in California?

It depends on your city and county. Most California cities require a business license for any business operated within city limits, including home-based businesses. Check with your local city hall — most licenses cost $50–$100/year.


Bottom line

California side hustlers face some of the highest combined tax rates in the country. The combination of federal SE tax, California income tax, and potentially an LLC franchise tax means planning ahead is non-negotiable. Set aside 35%, pay both federal and state quarterly, and keep clean records. The tax burden is real — but so are the deductions available to offset it.