What Is California Form 568? A Guide for LLCs (and the $800 “Zombie” Tax)
This article provides general information for educational purposes only. It is not legal advice, does not create an attorney-client relationship, and should not be relied upon as a substitute for consultation with a qualified attorney. Laws vary by state, and individualized guidance is recommended.
California Form 568 is required for most California LLCs, including many single-member LLCs. Learn who must file, how the $800 annual LLC tax works, filing deadlines, penalties, and the difference between paying the tax and filing the return.
Disclaimer This article provides general information for educational purposes only. It is not legal advice, does not create an attorney-client relationship, and should not be relied upon as a substitute for consultation with a qualified attorney. Laws vary by state, and individualized guidance is recommended.
Many California LLC owners assume that because their business is treated as a “disregarded entity” for federal tax purposes, the state ignores it as well. Unfortunately, that assumption often leads to an unexpected $800 bill from the California Franchise Tax Board (FTB).
California operates under a different system than the IRS. Even when a single-member LLC is disregarded for federal income tax purposes, California generally requires the LLC itself to file Form 568 and comply with the state’s annual LLC tax requirements. Understanding Form 568 is essential to avoiding penalties, maintaining good standing, and preventing an inactive business from continuing to generate tax obligations.
What Is California Form 568?
California Form 568, Limited Liability Company Return of Income, is the annual tax return filed with the California Franchise Tax Board by most LLCs doing business in California or registered with the California Secretary of State.
The form serves several purposes. It reports the LLC’s California income, calculates any LLC fee based on California-source gross receipts when applicable, reconciles annual tax payments, and provides information about the company’s members and tax classification.
Unlike the federal government, which generally disregards a single-member LLC for income tax purposes unless another election is made, California requires the LLC itself to file Form 568 even though the income ultimately flows through to the owner’s personal return.
The form also reconciles the annual $800 LLC tax imposed under California Revenue and Taxation Code sections 17941 and 17942, along with any additional LLC fee that may apply to businesses with higher California income.
Why California Requires Form 568
The IRS and California treat LLCs differently.
For federal purposes, a single-member LLC is generally ignored as a separate taxpayer unless it elects corporate taxation. The owner simply reports the business income on Schedule C, Schedule E, or Schedule F of the federal return.
California does not follow that approach completely. The Franchise Tax Board requires the LLC itself to file Form 568 to report California activity and verify compliance with the state’s LLC tax laws.
In other words, federal disregarded status does not eliminate California filing obligations.
Who Must File Form 568?
Most California LLCs are required to file Form 568 if they are:
- Organized in California.
- Registered to do business in California.
- Doing business in California under the state’s legal standards.
- Required to pay the annual LLC tax or LLC fee.
This requirement often surprises owners of inactive businesses.
If an LLC remains legally active with the Secretary of State, California may still require both the annual tax and Form 568, even if the company generated little or no income during the year.
Many business owners discover this only after several years of accumulated penalties and interest.
The “Inactive LLC” Trap
One of the most expensive mistakes California business owners make is assuming an unused LLC no longer creates tax obligations.
An LLC that was formed but never launched may still owe the annual $800 LLC tax until it is properly dissolved or canceled with the Secretary of State.
Simply stopping business operations does not automatically terminate the filing requirement.
As long as the LLC legally exists and remains subject to California’s LLC tax rules, Form 568 may still be required.
Out-of-State LLCs May Also Have Filing Obligations
Businesses formed outside California sometimes assume they only need to worry about taxes in their home state.
However, California’s “doing business” rules extend beyond physical incorporation.
Depending on the facts, an out-of-state LLC may be required to file Form 568 if it has sufficient California connections, such as maintaining employees, owning property, generating significant California sales, or otherwise meeting California’s economic nexus standards.
Because these thresholds are adjusted periodically, business owners should review the current Franchise Tax Board guidance each year.
Form 568 vs. Form 3522
Many LLC owners confuse Form 568 with Form 3522.
They serve different purposes.
Form 3522 is used to pay the annual LLC tax.
Form 568 is the annual return that reports the LLC’s income, calculates any additional LLC fee, reconciles payments already made, and satisfies the entity’s annual filing obligation.
Paying the $800 tax does not eliminate the need to file Form 568.
Likewise, filing Form 568 without paying the required annual tax can still result in penalties and interest.
Understanding the distinction between payment and reporting is one of the most important compliance concepts for California LLCs.
Filing Deadlines
For most calendar-year LLCs, the annual LLC tax is generally due by the 15th day of the fourth month of the taxable year using Form 3522.
Form 568 is generally due by the 15th day of the fourth month after the close of the taxable year.
Businesses operating on a fiscal year should follow the applicable deadlines based on their taxable year.
California may also provide filing extensions or disaster relief in certain situations, although extensions to file do not necessarily extend the time for paying taxes that are due.
Reporting Federal Income on Form 568
Single-member LLC owners often wonder where the numbers on Form 568 come from because they do not file a federal LLC return.
In most cases, the California return begins with the business income already reported on the owner’s federal return.
California then applies its own adjustments where required under state law.
Depending on the LLC’s activities, additional California schedules may also be necessary to calculate California-source income, apportionment, credits, or LLC fees.
Because California tax rules do not always mirror federal rules, the amounts reported on Form 568 may differ from the federal return.
The Pass-Through Entity Tax Election
Some California LLCs may also qualify to make California’s Pass-Through Entity (PTE) elective tax election.
Under this program, qualifying pass-through entities may elect to pay California tax at the entity level, allowing eligible owners to claim a corresponding California tax credit while potentially improving the federal deductibility of certain state taxes.
The election has strict payment deadlines and procedural requirements and should be evaluated carefully before filing.
Common Filing Mistakes
One of the most common errors is assuming that because no income was earned, no return is required.
Another frequent mistake is paying the annual LLC tax while forgetting to file Form 568.
Some owners also overlook the additional LLC fee that applies once California gross receipts exceed certain statutory thresholds.
Businesses operating across multiple states sometimes incorrectly assume that only their home state requires reporting, without evaluating whether California’s economic nexus rules apply.
These mistakes can quickly become expensive because California assesses both penalties and interest on delinquent filings.
Penalties for Filing Late
California imposes substantial penalties for failing to file Form 568 when required.
The late-filing penalty is generally calculated at $18 per member for each month, or part of a month, that the return remains late, up to a maximum of 12 months.
For a single-member LLC, this can result in a penalty of $216.
For multi-member LLCs, the penalty increases based on the number of members, making delays significantly more costly.
Interest and additional tax-related penalties may also apply depending on the circumstances.
Businesses with a strong compliance history may qualify for certain forms of administrative relief in limited situations, but relief is not automatic and depends on the applicable California rules.
Practical Steps to Stay Compliant
The simplest way to avoid unnecessary costs is to keep both your legal and tax records current.
If you are actively operating an LLC, calendar the due dates for both Form 3522 and Form 568 each year and confirm whether any additional LLC fee applies.
If you have stopped using the business entirely, formally dissolve or cancel the LLC rather than allowing it to remain active indefinitely.
Maintaining an inactive LLC without completing the proper dissolution process often results in years of unnecessary annual taxes and filing obligations.
Conclusion
California Form 568 is much more than a routine tax return. It is the state’s primary mechanism for tracking LLC compliance, collecting the annual LLC tax, and determining whether additional fees apply.
Even if your business is treated as a disregarded entity by the IRS, California generally still expects the LLC itself to file Form 568.
Understanding the difference between Form 568 and Form 3522, keeping track of annual deadlines, and formally dissolving an LLC that is no longer in use can prevent unnecessary taxes, penalties, and the “zombie” filing obligations that catch many business owners by surprise.
Legal.com Liability Disclaimer
All content published by Legal.com is provided for general informational purposes only. It is not legal advice, does not constitute a legal opinion, and should not be relied upon as a substitute for consultation with a qualified attorney. No attorney-client relationship is created by reading this article, using Legal.com templates, or contacting Legal.com. Legal.com disclaims all liability for actions taken or not taken based on this publication.