Legal separation California paperwork follows a set sequence, and it is easy to file forms out of order or skip a required disclosure step. This checklist covers exactly which forms come first, what you have to disclose financially before the court will finalize anything, and where the paperwork actually goes. For a full walkthrough of how the separation process compares to divorce, see our legal separation vs. divorce guide and our step-by-step filing guide.
What Paperwork Is Required for a California Legal Separation?
A legal separation uses the same court forms as a divorce. You stay married, but the court still divides your property and debts and makes orders about financial support, which is why the paperwork covers the same ground.
The paperwork breaks into three stages: forms that open the case, forms that share financial information, and forms that finish the case once you and your spouse reach an agreement or your spouse does not respond. Each stage has its own required forms, and the court generally will not move to the next stage until the previous one is complete.
Which Forms Do You File First?
You open a legal separation case with the Petition, Form FL-100, checking the legal separation box instead of dissolution, filed together with the Summons, Form FL-110.
If you and your spouse have minor children together, you also file the Declaration Under the Uniform Child Custody Jurisdiction and Enforcement Act, Form FL-105, at the same time, since it establishes which state has authority over custody matters.
After filing, the Petition and Summons must be served on your spouse, unless you are both filing together. Starting January 1, 2026, spouses who agree from the outset can instead open the case together using the new Joint Petition, Form FL-700, and Summons, Form FL-710, which applies to legal separation as well as divorce.
Someone other than you, a friend, relative, or a process server, has to hand your spouse the Petition and Summons. You cannot serve the papers yourself, and proof of that service generally gets filed with the court on its own form before the case can move forward.
What Has to Be Disclosed Financially?
Sharing financial information is a required step in every California legal separation, using the same rules as a divorce case.
The disclosure packet centers on Form FL-140, Declaration of Disclosure, the cover sheet listing what you are sharing with your spouse, which you must sign.
Alongside FL-140, you generally complete a Schedule of Assets and Debts, Form FL-142, listing every known community and separate asset or debt, or a Community and Quasi-Community Property Declaration, Form FL-160, depending on your case, along with an Income and Expense Declaration, Form FL-150.
The petitioner must serve the preliminary Declaration of Disclosure either with the Petition or within 60 days of filing it. The respondent must serve their preliminary disclosure either with the Response or within 60 days of filing the Response. These deadlines can be extended by written agreement or court order.
You do not file your financial documents with the court. You only file a proof form, the Declaration Regarding Service of Declaration of Disclosure, Form FL-141, confirming that you served your disclosures on your spouse.
If you and your spouse agree to skip the final round of disclosures, you can instead sign and file a Stipulation and Waiver of Final Declaration of Disclosure, Form FL-144.
Completing the disclosure paperwork is not optional once a case is open, and the court treats it seriously. If you hide information or leave things out, the judge can take away some of your property or order you to pay your spouse's attorney fees.
Where Do You File the Paperwork?
You file with the Superior Court in the California county where you or your spouse currently lives. Legal separation does not carry the residency test that applies to divorce, only one spouse must currently live in California, and there is no minimum length of time they need to have lived there.
Because filing procedures, local forms, and fee schedules can vary somewhat by county, confirm the specific filing steps with that county's Superior Court self-help center before you submit your paperwork.
Once you and your spouse agree on the terms, or your spouse does not respond, you finish the case with Form FL-130 (Appearance, Stipulations, and Waivers), your written agreement covering property, debts, and spousal support, your final Declaration of Disclosure or Form FL-144 waiving it, Form FL-170 (Declaration for Default or Uncontested Case), and Form FL-180, the Judgment, with your signed agreement attached.
If you file the paperwork for a legal separation and later decide you want a divorce instead, you may be able to change your case to a divorce before it becomes final, without starting the paperwork over from scratch.
Frequently Asked Questions
What paperwork do you need for a legal separation in California?
The same core forms used for divorce: a Petition (Form FL-100) with the legal separation box checked, a Summons (Form FL-110), a Declaration of Disclosure (Form FL-140) with a Schedule of Assets and Debts (Form FL-142) or Property Declaration (Form FL-160) and an Income and Expense Declaration (Form FL-150), and later a written agreement, Form FL-170, and Form FL-180 to finish the case.
What form do you file first for a California legal separation?
The Petition, Form FL-100, with the legal separation box checked instead of dissolution, filed together with the Summons, Form FL-110. If you have minor children together, you also file the Declaration Under the Uniform Child Custody Jurisdiction and Enforcement Act, Form FL-105, at the same time.
Do you have to file financial disclosures for a legal separation?
Yes. Sharing financial information with your spouse is a required step in every legal separation or divorce case in California, using the same Declaration of Disclosure forms and the same rules either way.
How long do you have to file financial disclosures after starting a legal separation?
Generally 60 days. The petitioner must serve the preliminary Declaration of Disclosure either with the Petition or within 60 days of filing it, and the respondent must serve their preliminary disclosure either with the Response or within 60 days of filing the Response, under California Family Code Section 2104.
Do you file your financial disclosure forms with the court?
No. You serve the Declaration of Disclosure and its attachments on your spouse, but you do not file the financial documents themselves with the court. You only file a proof form, the Declaration Regarding Service of Declaration of Disclosure, Form FL-141, confirming that service happened.
Where do you file California legal separation paperwork?
With the Superior Court in the California county where you or your spouse currently lives. Unlike divorce, legal separation has no minimum residency period before you can file, only one spouse needs to currently live in California, so confirm any county-specific filing procedures with that county's self-help center before you file.
What forms finish a California legal separation once you agree?
Form FL-130 (Appearance, Stipulations, and Waivers), a written agreement covering property, debts, and support, either your final Declaration of Disclosure or a signed waiver of it (Form FL-144), Form FL-170, and Form FL-180, the Judgment, with your agreement attached.
How Virdix Helps
Legal separation runs through the same form sequence as a divorce, and it is easy to file a form out of order or miss a disclosure deadline. Virdix walks you through the Petition, the disclosure packet, and your final judgment paperwork in order, keeping your answers consistent from the first form to the last.
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This article is for informational purposes only and does not constitute legal advice. Virdix is a document preparation service, not a law firm, and does not provide legal advice. For advice about your specific situation, consult a licensed California family law attorney.
Sources: California Courts Self-Help Center (selfhelp.courts.ca.gov), Judicial Council of California forms (courts.ca.gov), California Family Code Section 2104 (leginfo.legislature.ca.gov)