California single member LLC return

File Form 568 for the single member LLC with the Franchise Tax Board by the 15th day of the fourth month after the year ends, the same day as the owner's return.

When: By the 15th day of the 4th month after the fiscal year ends (April 15 for a calendar year).
Agency: California Franchise Tax Board
Form: Form 568
Applies to: LLCs; sole proprietorships and single member LLCs registered in California.
Source: www.ftb.ca.gov, read October 22, 2026

Jay explains

A single member LLC is disregarded for income tax but still files its own Form 568 with the Franchise Tax Board, by the 15th day of the fourth month after the year ends, April 15 for a calendar year, with an automatic extension to file. The $800 annual tax and any LLC fee are reconciled on it.

Next dates

For a calendar year company. Shown as the agency states them; if a date falls on a weekend, file before it.

April 15, 2027
April 15, 2028

Also in California

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What kind of organization is it?

An LLC's tax treatment decides which federal return it files. Choose the line that matches yours. Nonprofits are covered too.

State of formation

Employees

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Where is it based? The state of the office, or of most of the people

A company based outside its state of formation is registered in both and files in both.

More about the company: other states, payroll, dates, abroad

Company name

Date registered in each other state

Optional. Some states key their report to the day you registered there rather than your date of formation; without it, the formation date stands in and the calendar says so.

Who runs payroll?

Fiscal year ends in

Date of formation

California keys its report to this date. Add it and the calendar places it.

Annual revenue

Some taxes start at a revenue threshold.

We pay independent contractors We offer a retirement plan (401(k), SIMPLE, SEP)

Outside the United States We hold a bank or financial account outside the US A person or company outside the US owns 25% or more of it We own 10% or more of a company outside the US We pay people or companies outside the US

Each adds the FinCEN or IRS form that comes with it: the FBAR, Form 5472, Form 5471, Forms 1042 and 1042-S.

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