Filing for legal separation in California uses the same court, the same forms, and mostly the same process as filing for divorce. The practical differences are narrower than people expect, and this guide walks through exactly how to file.
Key Takeaway: You file for legal separation using the same Petition as a divorce, Form FL-100, checking the legal separation box instead of dissolution. Unlike divorce, legal separation has no residency requirement and no 6-month waiting period. You can generally convert the case to a divorce later if you change your mind. For a full comparison of what changes between the two, see our guide on legal separation vs. divorce in California.
How Do I File for Legal Separation in California?
The steps to file for legal separation are the same steps used to file for divorce, using the same court forms:
- Fill out the Petition, Form FL-100 (Petition, Marriage/Domestic Partnership), checking the box for legal separation near the top of the form instead of dissolution.
- File the Petition with the Superior Court in the appropriate county and pay the filing fee, or file a fee waiver request if you qualify.
- Serve your spouse with the filed Petition and a Summons (Form FL-110), the same way you would in a divorce case.
- Share financial information with your spouse through the required Declaration of Disclosure process, if the case addresses property or support.
- Reach an agreement or ask the court to decide on property, debts, support, and custody, following the same decision-making process as a divorce.
- Finalize the case by submitting your judgment paperwork once everything is resolved.
The court filing fee for a legal separation case is generally the same as a divorce filing fee, $435 to $450 depending on the county, since both use the same Petition. A fee waiver is available if you cannot afford it.
How Is Legal Separation Different From Divorce?
Two procedural differences matter most when you are deciding whether to file for legal separation or divorce:
- Residency requirement. Divorce requires one spouse to have lived in California for the past 6 months and in the filing county for the past 3 months. Legal separation only requires that one spouse currently lives in California, with no minimum time requirement.
- Waiting period. Divorce has a mandatory 6-month waiting period, measured from when the other spouse is served or responds, before the case can be finalized. Legal separation has no equivalent wait.
Everything else, the forms, the court, the issues the judgment can decide, works the same way. The biggest substantive difference is the outcome: after a divorce, you are no longer married. After a legal separation, you are still legally married, and neither of you can remarry or enter a new domestic partnership unless the case later converts to a divorce. Our full comparison guide covers why people choose one over the other in more detail.
A legal separation judgment can decide the same issues a divorce judgment can: how you divide your property, who is responsible for which debts, spousal or domestic partner support, and, if you have children together, custody, visitation, and child support. If lawyers are involved on either side, the judgment can also address who pays their fees. People choose legal separation over divorce for a range of reasons: not yet meeting the divorce residency requirement, religious or personal beliefs against divorce, or needing to remain married to keep a spouse on an insurance or benefit plan.
Can I Convert a Legal Separation Into a Divorce Later?
Generally, yes. If you filed for legal separation and decide before the case is final that you want a divorce instead, you can typically amend your Petition to ask for dissolution. This is common for someone who wanted to start their case before meeting California's divorce residency requirement: they file for legal separation first, since there is no residency rule for it, then convert to divorce once they qualify. If your spouse filed for legal separation and you want a divorce instead, you can generally respond by asking the court for dissolution.
How Long Does the Process Take?
Because there is no mandatory waiting period, a legal separation case can potentially be finalized faster than a divorce, which cannot be finalized in less than 6 months from service. How long your case actually takes still depends on how quickly you and your spouse can reach an agreement, or, if you cannot agree, how quickly the court can hear and decide the contested issues. A straightforward, uncontested legal separation with a complete written agreement generally moves faster than a contested case that needs a trial. If you and your spouse still need to exchange financial disclosures or work out custody and support, expect the case to take longer than a simple, already-agreed filing, even without a mandated wait.
Frequently Asked Questions
What form do I use to file for legal separation in California?
The same Petition used for divorce, Form FL-100 (Petition, Marriage/Domestic Partnership). Near the top of the form, you check the box for legal separation instead of dissolution. The rest of the form and the overall process is the same as a divorce case.
Do I need to live in California to file for legal separation there?
No. Unlike a divorce, which requires one spouse to have lived in California for the past 6 months and in the filing county for the past 3 months, legal separation has no residency requirement. Only one spouse needs to currently live in California, with no minimum time requirement, which is why some people file for legal separation first if they have not yet met the divorce residency rule.
Is there a waiting period for legal separation like there is for divorce?
No. California divorce cases have a mandatory 6-month waiting period after the other spouse is served or responds before the case can be finalized. There is no equivalent waiting period for legal separation.
Can I change my legal separation case to a divorce later?
Generally yes. If you filed for legal separation and later decide you want a divorce, you can typically amend your petition to ask for dissolution instead, often once you have met the divorce residency requirement if you had not already. If your spouse filed for legal separation and you want a divorce, you can respond by asking for dissolution.
What can a California legal separation judgment decide?
The same issues as a divorce: division of property and debts, spousal or domestic partner support, child custody and visitation, and child support, if you have children together. The judge can also address who pays attorney fees if lawyers are involved. The only major difference is that at the end, both spouses remain legally married.
Why would someone file for legal separation instead of divorce in California?
Common reasons include not meeting the divorce residency requirement yet, wanting to resolve property, support, and custody without ending the marriage for religious or personal reasons, or needing to stay married to keep a spouse on an insurance or benefit plan. After a legal separation, neither spouse can remarry or enter a new domestic partnership unless the case is later converted to a divorce.
How Virdix Helps
Virdix prepares your California legal separation paperwork the same way it prepares a divorce case, using the same Form FL-100 with the legal separation box checked, and keeps your answers consistent if you later decide to convert the case to a divorce. Read our legal separation vs. divorce comparison if you are still deciding which path fits your situation.
Start Your California Filing →
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).