Spousal support in California has no fixed term written into the law. For marriages under 10 years, the working assumption is support for about half the length of the marriage. For marriages of 10 years or more, the court keeps the power to order support indefinitely, which is where the so-called 10-year rule comes from.
Unless the spouses agreed otherwise in writing, support ends when the supported spouse remarries or either spouse dies, and it can be changed or ended earlier when circumstances change.
The details decide real cases. This guide explains how long spousal support lasts under California law, how judges set the duration, what the 10-year rule does and does not mean, the events that end support automatically, and the tools courts use to put an end date on it.
Two Types of Spousal Support, Two Different Clocks
California uses the term spousal support rather than alimony, but the two words mean the same thing: payments from one spouse to the other. There are two types of spousal support, with different lifespans.
Temporary Spousal Support
Temporary support, sometimes called pendente lite support, is ordered while the divorce case is pending. Its purpose is to keep the household running until the case is resolved, and most courts, including Orange County, use a computer guideline formula based on the spouses’ incomes as the starting point. Orange County’s local rules do not adopt a specific formula; they say the court is guided by statute and case law and may consider the court-approved guidelines. Temporary support lasts until the final divorce judgment replaces it with a long-term order or terminates support. Our guide to temporary spousal support in California covers how it is set.
Long-Term or Permanent Spousal Support
Long-term support is ordered at the end of the case. Lawyers and other legal professionals often call it permanent support, even though it rarely is permanent. There is no formula for it. The judge weighs the factors in California Family Code section 4320 and decides both the amount and how long it should last. Spousal support can be ordered this way in a judgment of divorce or of legal separation.
Self-Sufficiency Within a Reasonable Time: The Half-the-Marriage Guideline
Family Code section 4320 lists the factors a judge must consider, and subdivision (l) sets the goal: the supported spouse should become self-supporting within a reasonable period of time. The statute then says that, except in a marriage of long duration, a reasonable period of time is generally one-half the length of the marriage.
For shorter marriages, the math is simple. For an eight-year marriage, the starting point is roughly four years of alimony. For a marriage of three years, roughly 18 months. Marriage length is measured from the date of marriage to the date of separation, not to the date the divorce is final.
The purpose of the award during that period is to let the receiving spouse maintain something close to the marital standard of living while building the financial footing to live without it.
Two qualifications matter. First, the half-the-marriage figure is a guideline, not a cap. The same subdivision says nothing in it limits the court’s discretion to order support for a longer or shorter period based on the other section 4320 factors.
A recipient with health problems or young children may receive support longer. A spouse who is already self-supporting may receive it briefly or not at all.
Second, the guideline describes a goal, not an automatic end date. A common misconception is that support stops on its own at the halfway mark. Unless the order says support terminates on a specific date, it continues until a court changes it or a terminating event occurs.
The 10-Year Rule for Long-Term Marriages
Family Code section 4336 creates the rule everyone has heard about. In a marriage of long duration, the court retains jurisdiction over spousal support indefinitely unless the parties agree otherwise in writing or the court enters an order terminating support. For that purpose, a marriage of ten years or more, measured from the date of marriage to the date of separation, is presumed to be a marriage of long duration.
People often describe this as alimony for life after ten years of marriage. That description is wrong in an important way.
What the 10-Year Rule Means
Indefinite jurisdiction means the court keeps the ability to make, modify and extend support orders for as long as either spouse is alive and the supported spouse has not remarried. That does not mean a judge can never set an end date. After one of these longer marriages, though, a court should not terminate its jurisdiction over support unless the record clearly shows that the supported spouse will be able to meet their own financial needs by the chosen date (In re Marriage of Morrison (1978) 20 Cal.3d 437), and a supported spouse in a long marriage is not held to the half-the-marriage expectation.
Is It Permanent Alimony? What the 10-Year Rule Does Not Mean
It does not mean lifetime support. The statute itself says nothing in it limits the court’s discretion to terminate support later on a showing of changed circumstances. A spouse married for 12 years who becomes fully employed can see support reduced or ended. The rule preserves the court’s power to act rather than guaranteeing a permanent payment.
The 10-year figure is also a presumption rather than a bright line. The court can consider periods of separation during the marriage in deciding whether it was in fact of long duration, and it can find that a marriage of less than 10 years qualifies as long duration on the right facts.
A marriage of nine years and eleven months is not automatically short, and a marriage that hit 10 years only because the spouses lived apart for three of them may not be treated as long.
Our article on Family Code 4320 and how California sets spousal support explains how these factors are weighed in practice.
Events That End Support Under Family Code Section 4337
Family Code section 4337 provides that, unless the parties agreed otherwise in writing, the obligation to pay spousal support ends on the death of either spouse or the remarriage of the supported spouse. No motion is required. When the supported spouse remarries, the paying spouse can stop paying as of the remarriage, though it is wise to confirm the date and document it.
Support also ends on the date stated in the order or judgment if it contains one, and on the date set by any later modification order.
Cohabitation Reduces Support but Does Not End It
Moving in with a new partner is not remarriage, so it does not terminate support by itself. It does shift the burden. Under Family Code section 4323, when the supported spouse is cohabiting with a nonmarital partner, there is a rebuttable presumption of decreased need for support. The supported spouse does not have to hold the partner out as a spouse for the presumption to apply.
The paying spouse must bring a motion to reduce or terminate support based on the cohabitation; nothing changes automatically. The receiving spouse can rebut the presumption by showing that their need has not decreased.
The statute also protects the paying spouse’s new household. The income of a paying spouse’s new spouse or partner is not considered when support is set or modified.
Retirement and Long-Term Support
Long-term support often outlasts a career. California courts have held that a supporting spouse cannot be compelled to keep working past the usual retirement age of 65 to pay the same level of support. In re Marriage of Reynolds (1998) 63 Cal.App.4th 1373 treats a bona fide retirement at or near 65 as a change in circumstances that justifies revisiting support.
Retirement does not end support on its own, and an early retirement taken to avoid support will not be respected. The paying spouse must file a motion, and the court then reconsiders the section 4320 factors with the new income picture, which usually includes the supported spouse’s share of any retirement accounts divided in the divorce.
Gavron Warnings: Putting the Supported Spouse on Notice
Because the law expects the supported spouse to work toward self-support, courts often say so on the record. This is a Gavron warning, named for In re Marriage of Gavron (1988) 203 Cal.App.3d 705, in which the Court of Appeal reversed a termination of support because the wife had never been told that she was expected to become self-sufficient.
Family Code section 4330 now codifies the practice. When making a support order, the court may advise the supported spouse that they should make reasonable efforts to assist in providing for their own support needs, unless the court finds the advisement inadvisable in a marriage of long duration.
Once the warning has been given, a recipient who makes no effort to become self-supporting risks a reduction or termination at the next hearing. Courts can also order a vocational evaluation to measure the spouse’s earning capacity, meaning what they could reasonably earn.
Richmond Orders and Step-Down Orders
Judges have two common tools for building an end into a support order without closing the door entirely.
The Richmond Order
A Richmond order, named for In re Marriage of Richmond (1980) 105 Cal.App.3d 352, sets support at a stated amount until a specific date, at which point support terminates and the court’s jurisdiction ends, unless the supported spouse files a motion before that date and shows good cause to extend it. The burden shifts to the supported spouse to justify continuing support rather than requiring the paying spouse to justify ending it.
Step-Down Orders
A step-down order reduces support in stages, for example a full amount for two years, a reduced amount for the next few years, and zero after that. Step-downs must be based on evidence about when and how the supported spouse’s income is expected to rise, not on a bare hope that it will.
When Support Cannot Be Awarded at All
Domestic violence changes the analysis. Under Family Code section 4325, a spouse convicted of a misdemeanor act of domestic violence against the other spouse within five years before the divorce was filed, or during the case, faces a rebuttable presumption that support to the convicted spouse is prohibited.
Under section 4324.5, a spouse convicted of a violent sexual felony or a domestic violence felony against the other spouse cannot receive support at all if the petition is filed within five years after the conviction and any time in custody, on probation or on parole. Documented history of domestic violence is also one of the section 4320 factors in every case.
Changing or Ending Support Before the Order Says So
Under Family Code section 3651, spousal support orders can be modified or terminated at any time the court determines it is necessary, and the courts require a showing of a material change in circumstances since the last order. Common grounds include a substantial increase in the supported spouse’s income, a real decrease in the paying spouse’s income, cohabitation, retirement, or the supported spouse’s failure to make reasonable efforts after a Gavron warning.
Two limits apply. Modification is not retroactive to a date before the motion was filed, so a paying spouse who loses a job should file immediately rather than accumulating arrears.
Where the spouses agreed in writing, or orally in open court, that support would be non-modifiable, the court cannot change it, so a clause that waives future modification should never be signed casually. Our guide to modifying a support order in California walks through the process.
Factors Considered in Deciding How Long Support Lasts
In practice, most long-term support orders in Orange County are negotiated rather than tried. The negotiation is anchored by the factors outlined in section 4320 and by both spouses’ Income and Expense Declarations on form FL-150, often with the Spousal Support Declaration Attachment on form FL-157 laying out each side’s position on the factors.
The facts that move the spousal support duration most are the length of the marriage, the supported party’s age, health and marketable skills, the time needed for education or training, the presence of young children, and the standard of living established during the marriage. Section 4320 also asks whether the supported spouse helped the supporting spouse (usually the higher-earning spouse) obtain an education, training, a career position or a professional license. Each party’s financial obligations and separate assets count as well, and significant disparities in income or assets bear on both the amount and the term.
A 25-year marriage ending when the supported spouse is 58 with no recent work history points toward long-term spousal support. A six-year marriage between two professionals points toward a short transitional period or none at all. Most cases fall between those poles, and each turns on the couple’s unique circumstances.
Written agreements can set any duration the spouses choose, including a fixed term, a step-down, a lump-sum buyout in place of monthly payments, or a waiver of support entirely.
Because the statute lets the parties contract around the default rules, the terms of the agreement control. A supported spouse who agrees to a short term in exchange for a larger property share should understand that the court will hold them to it.
Taxes and the Length of Support
Tax treatment affects how long paying spouses are willing to pay and how much supported spouses net, and it changed recently. For federal purposes, spousal support under agreements executed after December 31, 2018 is neither deductible by the payer nor taxable to the recipient.
California kept the older treatment for several years, allowing the payer to deduct support and requiring the recipient to report it on the state return. That ended with Senate Bill 711. For divorce or separation instruments executed on or after January 1, 2026, California follows the federal rule: no deduction for the payer and no income to the recipient.
Agreements signed between 2019 and 2025 keep the old California treatment unless they are modified after December 31, 2025 with language expressly adopting the new rules. Anyone negotiating support now should run the numbers on an after-tax basis.
Frequently Asked Questions
How Long Do You Have to Pay Alimony in California After 10 Years of Marriage?
There is no fixed term. After a marriage of 10 years or more, the court keeps jurisdiction over support indefinitely, so support continues until the court modifies or ends it, the supported spouse remarries, or either spouse dies. It can still be reduced or terminated when circumstances change.
What Is the 1/3 Rule for Alimony?
California has no 1/3 rule for alimony. Temporary support is usually set with court-approved guideline software based on both incomes, and long-term support has no formula at all. For the final order, the judge weighs the section 4320 factors to reach a reasonable amount and duration.
What Voids Alimony in California?
Support ends automatically on the supported spouse’s remarriage or either spouse’s death unless the parties agreed otherwise in writing. It can be barred by a domestic violence conviction under Family Code sections 4325 and 4324.5, and it can be waived in a valid written agreement.
When Can I Stop Paying Alimony in California?
On the termination date in your order, on the supported spouse’s remarriage, or on either spouse’s death. Otherwise you must obtain a court order ending support, usually by showing a material change in circumstances such as the supported spouse’s increased income, cohabitation, or your bona fide retirement.
Is Alimony Automatic After 10 Years in California?
No. Length of marriage is one factor among many under Family Code section 4320. A ten-year marriage triggers indefinite jurisdiction, but the court still decides whether an alimony award is appropriate and how much, and a spouse who is self-sufficient may receive little or none.
Does Alimony End If My Ex Moves in with Someone?
Not automatically. Cohabitation creates a rebuttable presumption of decreased need under Family Code section 4323. You must file a motion to reduce or terminate support, and your former spouse can rebut the presumption with evidence that their need has not changed.
Can Long-Term Spousal Support Be Extended Past the End Date?
Sometimes. If the court retained jurisdiction, the supported spouse can ask to extend support before it ends by showing good cause. If the order terminated jurisdiction on a set date, as a Richmond order does, and no motion was filed before that date, support cannot be revived.
How Is the Length of the Marriage Measured?
From the date of marriage to the date of separation as defined in Family Code section 70, which is the date of a complete and final break in the marriage. Time between separation and the final judgment does not count.
Is Spousal Support Still Tax Deductible in California?
Only for agreements executed before January 1, 2026 that have not been modified to adopt the new rules. For instruments executed on or after that date, California follows the federal treatment: not deductible for the payer and not income for the recipient.
Talking with a Family Law Attorney About Support Duration
Whether you expect to pay support or receive it, the length of the order matters as much as the amount, and both are shaped by facts you can document now: the date of separation, each spouse’s earning capacity, the marital standard of living, and the plan for the supported spouse’s return to work. Pinkham & Associates handles spousal support orders, modifications and terminations from its Tustin and Placentia offices. Read our California spousal support calculator roadmap for how the amount is figured, or contact our office to discuss your situation.
This article is for general educational purposes only and is not legal advice. California statutes and tax rules change, outcomes depend on the specific facts of each case, and reading this article does not create an attorney-client relationship.
