What Is the 10-Year Rule for Spousal Support in California?

Most people facing this question are married somewhere close to that line. Some are a few months short of a tenth anniversary and wondering whether timing matters. Others are well past it and hearing very different claims from friends, a spouse or the internet: that support now lasts forever, or that it means nothing at all. When support is likely to be contested, those claims shape how a person prepares, what they agree to and what they are willing to take to a judge. The real rule is narrower than the rumor, and more useful once it is clear.

This article walks through what Family Code section 4336 actually says, how a San Diego County court decides what support looks like, what can end or reduce support, and why marriage length does not change how property is split.

Family Code section 4336 is the source of the rule. Subdivision (a) reads: "Except on written agreement of the parties to the contrary or a court order terminating spousal support, the court retains jurisdiction indefinitely in a proceeding for dissolution of marriage or for legal separation of the parties where the marriage is of long duration."

"Jurisdiction" here has a plain meaning. It is the court's continuing authority to revisit spousal support after the divorce is final. When the court keeps jurisdiction, support stays open. A party can come back and ask the court to change it, extend it or end it.

Subdivision (b) explains when a marriage counts as long. It creates "a presumption affecting the burden of producing evidence that a marriage of 10 years or more, from the date of marriage to the date of separation, is a marriage of long duration." A presumption is a starting assumption the law makes until someone produces evidence that points the other way. The same subdivision lets the court "consider periods of separation during the marriage" when deciding whether a marriage was in fact long. It also says that nothing in the subdivision "precludes a court from determining that a marriage of less than 10 years is a marriage of long duration."

Three points follow from that text:

• Ten years is a presumption, not a hard cutoff. A marriage just short of 10 years can still be treated as long, and periods of separation during a longer marriage can be weighed.
• The rule measures to the date of separation, not the divorce. The clock stops at separation, which is why the date of separation is often disputed in these cases.
• Jurisdiction is not entitlement. Section 4336 keeps the court's door open. It does not decide that either spouse receives support, how much, or for how long.

Spouses in San Diego County bring these questions to the Superior Court of California, County of San Diego, which hears family law cases for the county. The judge there applies section 4336 the same way a court anywhere else in California would.

Whether support is ordered, and what it looks like, comes from a different statute. Family Code section 4320 says that in ordering spousal support, "the court shall consider all of the following circumstances." The list is long, and what follows is partial. It includes:

• The extent to which each party's earning capacity is sufficient to maintain the standard of living established during the marriage.
• All documented evidence of any history of domestic violence between the parties, or by either party against either party's child (section 4320(i)).
• The goal that the supported party be self-supporting within a reasonable period of time (section 4320(l)).

The section lists other circumstances as well, and the court must consider all of them. Marriage length is part of the picture, but it does not override the rest. A long marriage does not cancel the goal of self-support. A spouse with strong earning capacity can still face a court that orders little or nothing.

Section 4320(l) also sets out the time guide people often hear about. Except in a marriage of long duration, a "reasonable period of time" for self-support "generally shall be one-half the length of the marriage." The same subdivision adds that nothing in it limits "the court's discretion to order support for a greater or lesser length of time." So half the marriage length is a general guide for shorter marriages, not a formula. In a long-duration marriage, the court keeps jurisdiction instead of being guided toward that end point.

It helps to separate two kinds of support. Temporary support, sometimes called pendente lite support (Latin for "while the case is pending"), covers the time between filing and judgment. Long-term support is ordered at judgment, and that is where section 4320 and section 4336 do their main work. More on how amounts, modifications and enforcement are handled appears in the overview of San Diego support disputes.

A support order in a long-duration marriage generally does not carry a built-in date when the court loses power over it. That is the practical effect of section 4336(a). Subdivision (c) adds that nothing in the section "limits the court's discretion to terminate spousal support in later proceedings on a showing of changed circumstances."

So either spouse can return to the Superior Court of California, County of San Diego and ask to modify or end support when circumstances change. Examples include a supported spouse who becomes self-supporting, or a paying spouse whose income rises or falls significantly. Whether any change justifies a different order depends on the evidence. A person who has paid or received support for years may find this the most important part of the rule, because the order they live with is not frozen.

Some events end support by statute. Family Code section 4337 provides that, "Except as otherwise agreed by the parties in writing," support "terminates upon the death of either party or the remarriage of the other party."

Moving in with a new partner works differently. Under Family Code section 4323, unless the parties agreed otherwise in writing, there is "a rebuttable presumption, affecting the burden of proof, of decreased need for spousal support if the supported party is cohabiting with a nonmarital partner." Rebuttable means the supported spouse can answer it with evidence. It is not an automatic end to support. If the court finds circumstances have changed, it "may modify or terminate" support. Two details matter: the couple does not have to present themselves as married to count as cohabiting, and the income of a paying spouse's new spouse or partner "shall not be considered" in setting or changing support.

Shorter marriages tend to look different. Because section 4320(l) points generally toward half the marriage length, an order in a shorter marriage often has an end date in view. When a paying spouse stops paying under either kind of order, that is an enforcement question rather than a modification one.

No single factor in section 4320 automatically disqualifies a spouse. The court weighs them all. Some, though, tend to pull support down. A supported spouse's own earning capacity, their assets and separate property, and the self-support goal in section 4320(l) all bear on whether support is needed and for how long. Even within a long marriage, the evidence of how the spouses actually shared finances can matter.

Domestic violence is a required consideration. Section 4320(i) directs the court to weigh documented evidence of any history of domestic violence, including a plea of nolo contendere (no contest), emotional distress caused by the supporting spouse's violence against the supported spouse, any history of violence against the supporting party by the supported party, a protective order issued after a hearing, and a court finding during a divorce, custody or similar proceeding that a spouse committed domestic violence. It is a factor, not an automatic bar on its own.

Criminal convictions can be a bar. Under Family Code section 4324.5, when one spouse has been convicted of a violent sexual felony or a domestic violence felony against the other, and the divorce petition is filed before five years following the conviction and any time served in custody, on probation or on parole, an award of support to the convicted spouse from the injured spouse "is prohibited." The section also addresses attorney's fees, lets the injured spouse ask that the date of separation be set at the date of the incident, and gives the injured spouse 100 percent of the community interest in their own retirement and pension benefits.

Family Code section 4325 covers misdemeanor domestic violence convictions entered within five years before filing or during the case. It creates a rebuttable presumption, not an absolute bar, that support to the convicted spouse is prohibited. The presumption can be rebutted by a preponderance of the evidence (meaning more likely than not), and the court may consider documented evidence that the convicted spouse was a victim of the other spouse's domestic violence.

Section 4336 governs spousal support jurisdiction only. It does not change how property is divided, and a 20-year marriage and a two-year marriage follow the same property rules.

Under Family Code section 760, except as otherwise provided by statute, property acquired during the marriage while domiciled in California is community property. Domiciled means California is the place a person treats as their permanent home. Under Family Code section 2550, the court divides the community estate equally, unless the parties agree otherwise in writing or by oral stipulation in open court, or the law provides otherwise.

Separate property generally is not divided. Family Code section 770 defines it to include all property owned before marriage, property received during marriage by gift, bequest, devise or descent (inheritance), and the rents, issues and profits of that property. Claiming it usually depends on tracing, which means showing with records where the money or asset came from.

Mixed assets have their own rules, and two of them are often confused:

• Family Code section 2640 reimburses a spouse for separate-property contributions to community property, such as a down payment, improvements or loan principal, to the extent they can be traced, unless that spouse made a written waiver of reimbursement or signed a writing with that effect. Reimbursement is without interest and capped at the property's net value. A similar reimbursement applies to separate contributions to the other spouse's separate property, unless there was a written transmutation or written waiver.
• The Moore/Marsden apportionment is the opposite situation: community money paying down a loan on one spouse's separate-property home. It gives the community a share of that property and is a separate doctrine from section 2640.

Timing rules apply too. Under Family Code section 2552, the court values assets and debts as near as practicable to the time of trial, and on 30 days' notice may, for good cause, use a date after separation and before trial. Under Family Code section 2104(f), each spouse serves a preliminary declaration of disclosure with the petition or response, or within 60 days of filing it, unless the parties extend that time by written agreement or the court extends it by order.

Disputes over long-duration support in San Diego County are decided in the Superior Court of California, County of San Diego, and they arise at predictable points: when the date of separation is contested near the 10-year mark, when one spouse claims the other can earn more, and years later when someone asks to modify or end support.

Under Family Code section 2339, a judgment cannot end the marriage until six months have passed from the date the summons and petition are served or the date the respondent appears in the case, whichever occurs first. The court may extend that period for good cause.

Evidence in these cases tends to center on money and capacity. Income and expense declarations, records showing the marital standard of living, and vocational evaluations, which are assessments of what a spouse could realistically earn, all speak to the section 4320 factors. Disclosure deadlines frame that work. Under Family Code section 2105(a), the final declaration of disclosure and a current income and expense declaration are due before or at the time the parties agree on property or support issues other than temporary support, or, if the case goes to trial, no later than 45 days before the first assigned trial date. Section 2105(d) allows a mutual waiver of the final declaration only when it is executed under penalty of perjury in open court or by separate stipulation. How these steps play out in a contested divorce depends heavily on preparation.

Settlement remains open throughout. Because section 4336(a) yields to "written agreement of the parties to the contrary," spouses in a long-duration marriage may sign a marital settlement agreement that sets a fixed end date for support. When agreement is not reachable, the issue goes to a judge, which is where divorce litigation and the kind of assertive, well-prepared representation readers often call aggressive come into play. For general court information, the California Courts self-help site explains spousal support and divorce procedures.

The 10-year rule turns on facts that are easy to get wrong alone: the actual date of separation, any periods apart during the marriage, each spouse's real earning capacity, and whether any agreement already limits support. A consultation is the place to talk through those facts and the evidence that speaks to them. San Diego Family Law Advocates practices California family law only, so the conversation stays focused on how California courts handle these questions.

To talk through how the 10-year rule fits your situation, contact San Diego Family Law Advocates to request a confidential consultation. Readers interested in how the firm approaches contested cases can also read about assertive divorce representation.