Does Spousal Support End If My Ex Remarries in California?

Q: Does spousal support stop automatically when my ex remarries?

Yes. Under Family Code section 4337 the obligation ends on the date of remarriage unless your written agreement says otherwise. Arrears that accrued before the wedding are still owed. File FL-300 to confirm the termination date and end any wage assignment.

Q: Can I stop paying if my ex moves in with a boyfriend or girlfriend?

Not on your own. Cohabitation creates a presumption of decreased need under Family Code section 4323, but you must file a Request for Order and let the court decide. Stopping without an order creates arrears and enforcement risk.

Q: How do I prove cohabitation?

With documents and patterns. Shared address records, leases, joint accounts, vehicle registrations, social media, and witness declarations showing a marriage-like relationship in one home carry weight. Boarders, caretakers, and occasional overnight guests do not qualify.

Q: Does my new spouse's income affect the support I pay?

No. Family Code section 4323 provides that a supporting party's new spouse's or nonmarital partner's income is not considered when determining or modifying spousal support. The court looks at your own income and the Family Code section 4320 factors.

Daniel Gramling, Esq.

4 hours ago

6 min read

The short answer: Yes. Under Family Code section 4337, the obligation to pay spousal support ends automatically when the supported spouse remarries, unless the parties agreed otherwise in writing. Cohabitation is different. Under Family Code section 4323, living with a new partner creates a rebuttable presumption of decreased need, but the paying spouse must go back to court to reduce or end support.

Why the distinction matters. Payors in Riverside, Rancho Cucamonga, Victorville, and Apple Valley often assume both events work the same way. They do not. Remarriage ends the obligation by operation of law. Cohabitation gives you a strong argument, not an automatic result. This guide from our California spousal support practice explains both rules and the steps to take.

Remarriage Ends Spousal Support Under Family Code Section 4337

The rule. Family Code section 4337 provides that, except as otherwise agreed by the parties in writing, the obligation to support a former spouse terminates upon the death of either party or the remarriage of the supported party. No motion is required for the obligation itself to end. The duty stops on the date of the new marriage.

What remarriage does not erase. Support that came due before the wedding remains owed. Arrears that existed on the date of remarriage survive, accrue interest, and can be collected like any other judgment. Child support is unaffected, because it is set by Family Code section 4055 and the parents' incomes, not by either parent's marital status. Enforcement tools are covered in How Do I File Contempt for Unpaid Child Support in California?.

Why you should still file. Wage assignments, payment records, and the other side's expectations do not update themselves. File a FL-300 Request for Order asking the court to confirm termination as of the remarriage date and to end any earnings assignment under Family Code section 5230. If you paid after the remarriage, ask the court to address those payments in the same request. Attach proof of the new marriage, such as a certified marriage certificate.

Written agreements control. The statute begins with the words "except as otherwise agreed by the parties in writing." A marital settlement agreement can provide that support continues after remarriage, or that it is nonmodifiable under Family Code section 3591. Read your judgment before assuming anything. Our guide to What Is a Marital Settlement Agreement in California? explains how these provisions are drafted and enforced.

Cohabitation and the Presumption of Decreased Need Under Family Code Section 4323

The presumption. Family Code section 4323 creates a rebuttable presumption, affecting the burden of proof, of decreased need for spousal support if the supported party is cohabiting with a nonmarital partner. The statute adds that holding oneself out as the cohabitant's spouse is not required. Once you prove cohabitation, the burden shifts to your former spouse to show that his or her need has not decreased.

What counts as cohabitation. Courts look for a shared residence combined with a romantic or marriage-like relationship, not a roommate, boarder, or caretaker arrangement. In In re Marriage of Thweatt, the Court of Appeal declined to apply the presumption where the supported spouse rented rooms to boarders with no romantic relationship. Evidence that matters includes shared addresses on licenses and mail, joint leases or accounts, overnight patterns, social media, and the partner's contributions to household expenses.

What the court can do. The presumption supports modification or termination; it is not an automatic cutoff. The court still weighs the Family Code section 4320 factors, including the supported spouse's actual needs and the paying spouse's ability to pay. In In re Marriage of Bower, the Court of Appeal upheld a reduction where the supported party lived with a partner who shared living expenses. A judge may reduce support, end it, or order a step-down.

The new partner's income. Family Code section 4323 also provides that the income of a supporting party's subsequent spouse or nonmarital partner shall not be considered when determining or modifying spousal support. That protects payors who remarry. On the recipient's side, the issue is not the partner's income as such but how the shared household reduces the recipient's need.

How to Ask the Court to Modify or Terminate Support

File the Request for Order. A support order is modified by motion under Family Code section 3651. File FL-300, check the spousal support box, attach FL-343 (the Spousal or Partner Support Declaration Attachment), and file a current FL-150 Income and Expense Declaration. State the remarriage or cohabitation facts in a declaration and attach your evidence as exhibits. The other side responds on FL-320. The broader change-of-circumstances standard is explained in Can Spousal Support Be Modified in California?.

Timing and retroactivity. Under Family Code section 3653, a modification can be made retroactive only to the date the request was filed and served, not to the date cohabitation began. Every month you wait is a month of support you likely cannot recover. Payors in Hesperia or Victorville should file as soon as the evidence is solid rather than gathering proof for a year.

Where to file. The request is filed in the court that issued the judgment. Riverside cases are heard at the Riverside Family Law Courthouse, Los Angeles cases at the Stanley Mosk Courthouse or a district courthouse, and High Desert cases from Victorville, Apple Valley, and Hesperia are generally heard at the Victorville, Barstow, or Joshua Tree courthouses as the court assigns them. Confirm the assignment and current filing cutoffs on the San Bernardino Superior Court website.

Common Mistakes and Strategic Points

Stopping payments without an order. On cohabitation, stopping support unilaterally creates arrears, interest, and exposure to enforcement, including a wage assignment under Family Code section 5230. Keep paying until the court rules, or sign a written stipulation. On remarriage the obligation ends by law, but file promptly to document the date and close out the earnings assignment.

Ignoring the judgment's own terms. If the judgment set a termination date, Family Code section 4335 bars extension past that date unless the court retained jurisdiction, and a marriage of ten years or more keeps jurisdiction open under Family Code section 4336 unless the judgment says otherwise. Our guide How Long Does Spousal Support Last in California? walks through those rules.

Overstating the evidence. Inland Empire judges see weak cohabitation claims regularly. A partner who visits on weekends is not a cohabitant. Build the record with dates, addresses, and documents. Attorney fees can be shifted under Family Code section 2030 or Family Code section 271; see Who Pays Attorney Fees in a California Divorce?.

Settling and limited scope. Many cohabitation disputes settle once the evidence is exchanged, and mediation can produce a step-down agreement faster than a contested hearing. If you prefer to handle the hearing yourself with document help, limited scope representation and our flat-fee options keep costs predictable.

Frequently Asked Questions

Does spousal support stop automatically when my ex remarries?

Yes. Under Family Code section 4337 the obligation ends on the date of remarriage unless your written agreement says otherwise. Arrears that accrued before the wedding are still owed. File FL-300 to confirm the termination date and end any wage assignment.

Can I stop paying if my ex moves in with a boyfriend or girlfriend?

Not on your own. Cohabitation creates a presumption of decreased need under Family Code section 4323, but you must file a Request for Order and let the court decide. Stopping without an order creates arrears and enforcement risk.

How do I prove cohabitation?

With documents and patterns. Shared address records, leases, joint accounts, vehicle registrations, social media, and witness declarations showing a marriage-like relationship in one home carry weight. Boarders, caretakers, and occasional overnight guests do not qualify.

Does my new spouse's income affect the support I pay?

No. Family Code section 4323 provides that a supporting party's new spouse's or nonmarital partner's income is not considered when determining or modifying spousal support. The court looks at your own income and the Family Code section 4320 factors.

Talk to Gramling Law Group

Get a clear answer before you act. Daniel Gramling, Esq. represents paying and supported spouses in remarriage and cohabitation disputes across the Inland Empire, the High Desert, Los Angeles County, Orange County, and Southern California. Gramling Law Group offers flat-fee and limited-scope options for post-judgment requests. Call (909) 654-4575 or contact us through this website.

This article is educational and is not legal advice. Reading it does not create an attorney-client relationship. It addresses California law only.