What the judge actually looks at when setting alimony
California courts do not use a formula to calculate alimony the way they do for child support. Instead, a judge weighs a list of factors set out in California Family Code Section 4320 and decides what amount, if any, one spouse should pay the other. The judge has broad discretion — meaning two judges can look at identical situations and reach different conclusions.
The factors are not weighted equally, and the judge does not have to find that every factor points the same direction. A judge might find that one spouse's earning capacity is much higher, but also find that the marriage was short, and balance those two things differently than another judge would. This is why alimony outcomes in California vary widely, and why the specific facts of your case matter more than a general rule.
Key Takeaways
- California has no alimony formula; judges decide by weighing ten statutory factors, with no single factor controlling the outcome.
- The length of the marriage is the strongest predictor of alimony duration — marriages under ten years typically receive limited-term support, while longer marriages may receive indefinite support.
- Both spouses' earning capacity (not just current income) is considered, including education, work history, and ability to become self-supporting.
- The judge looks at the standard of living during the marriage and whether one spouse sacrificed career or education to support the family.
- Temporary alimony during the divorce and permanent alimony after it are set separately and can differ significantly.
The ten factors a judge must consider
California Family Code Section 4320 lists the factors a judge must weigh. They are: (1) the earning capacity of each party; (2) the extent to which a party supported the other party's education or career; (3) the ability of the party seeking support to become self-supporting; (4) the standard of living established during the marriage; (5) the duration of the marriage; (6) the age and health of each party; (7) the ability of the supporting party to pay; (8) the present or future earning capacity of each party; (9) any documented history of domestic violence; and (10) any other factors the court deems just and equitable.
The statute does not rank these factors. A judge might find that earning capacity strongly favors one outcome, but that the length of the marriage and standard of living point elsewhere, and then weigh those competing signals. The judge must state which factors were considered and how they were weighed, but the law does not require a mathematical calculation or equal treatment of each factor.
How marriage length shapes alimony duration
The length of the marriage is often the strongest predictor of how long alimony will last. California law does not define "short," "medium," or "long" marriages, but courts have developed patterns: marriages under five years typically receive limited-term support (often one-third to one-half the length of the marriage); marriages of five to ten years receive moderate-term support; and marriages over ten years may receive indefinite support, meaning it continues until the supported spouse remarries or either party dies.
A marriage of 15 years does not automatically mean indefinite alimony, but it makes indefinite support much more likely. A marriage of three years does not automatically mean no alimony, but it makes limited-term support the norm. The judge still weighs the other factors — a three-year marriage where one spouse gave up a medical degree to raise children might receive longer support than a 12-year marriage where both spouses worked throughout.
Earning capacity versus current income
The judge looks at what each spouse can earn, not just what they currently earn. If one spouse left the workforce to raise children and now earns nothing, the judge considers whether that spouse could return to work, what training or education would be needed, and how long it would reasonably take. If one spouse is underemployed — working part-time when full-time work is available — the judge may impute (assign) higher income based on what that spouse could earn.
Conversely, if a spouse is unable to work due to age, health, or disability, the judge factors that in. A 58-year-old with a chronic illness has lower earning capacity than a healthy 35-year-old, even if both have the same education. The judge also considers whether one spouse's career was sacrificed during the marriage — for example, if one spouse worked while the other attended law school, or if one spouse left a career to raise children while the other advanced in theirs.
The standard of living during marriage
California law requires the judge to consider the standard of living the couple enjoyed during the marriage and whether the supported spouse can maintain it after divorce. This does not mean the supported spouse gets to keep the exact same lifestyle — alimony is not meant to preserve the marriage's spending level dollar-for-dollar. But it is a factor the judge weighs.
If a couple lived in a high-income household with significant discretionary spending, the judge considers whether the supported spouse's own income plus alimony can reasonably approximate that standard. If the couple lived modestly, the judge weighs that too. A spouse who earned $40,000 during a 20-year marriage where the household income was $150,000 may receive more support than a spouse who earned $40,000 during a 20-year marriage where the household income was $80,000, because the first spouse's accustomed standard of living was higher.
Temporary alimony during divorce versus permanent alimony after
Alimony is set in two stages: temporary alimony (called "spousal support" in the divorce paperwork) while the case is pending, and permanent alimony (also called "spousal support") after the divorce is final. These are separate orders and can be very different amounts.
Temporary alimony is often set quickly, sometimes using a guideline calculation based on income, because the case needs to move forward. Permanent alimony is set at or near the end of the case, after the judge has heard evidence about all ten factors and has a full picture of the marriage, the parties' circumstances, and their earning capacities. Temporary alimony might be $2,000 per month, but permanent alimony might be $1,200 per month or $2,500 per month, depending on what the judge learns during the case.
How health, age, and domestic violence affect the decision
A spouse's age and health directly affect earning capacity and the ability to become self-supporting. A 62-year-old with arthritis has different prospects than a 35-year-old in good health, even if both have the same education and work history. The judge considers whether a spouse can realistically return to work, retrain, or work full-time, or whether age or health makes that unlikely.
A documented history of domestic violence is a separate factor. If one spouse abused the other, the judge may order longer or higher alimony as a result, or may consider it as part of the overall fairness analysis. The statute requires the judge to consider it, but does not mandate a specific outcome — the judge weighs it against the other factors.
What happens if circumstances change after alimony is set
Alimony orders can be modified if there is a significant change in circumstances — for example, if the paying spouse loses a job, becomes disabled, or retires, or if the receiving spouse's income increases substantially or remarries. The party seeking the change must file a request with the court and show that the change was not foreseeable when the order was made.
Temporary alimony automatically ends when the divorce is final and the permanent order takes effect. Permanent alimony continues until the receiving spouse remarries, either party dies, or the court modifies or terminates it. If the receiving spouse enters into a registered domestic partnership, alimony also terminates in most cases.
Frequently Asked Questions
Is there a percentage of income I can use to estimate alimony?
No. California has no formula for permanent alimony. Some courts use a temporary alimony guideline based on income (roughly 40% of the higher earner's income minus 50% of the lower earner's income), but this is only for temporary support during the divorce. Permanent alimony depends on the judge's weighing of all ten factors and varies case to case.
Does the length of the marriage determine how long I have to pay alimony?
Length of marriage is a major factor, but not the only one. Marriages over ten years often result in indefinite alimony, while shorter marriages typically result in limited-term support. However, a judge can order indefinite alimony in a shorter marriage if other factors (like one spouse's sacrificed career) warrant it, or limited-term alimony in a longer marriage if the supported spouse has strong earning capacity.
What if my spouse is not working but could work?
The judge can impute income — assign an earning capacity — based on the spouse's education, work history, and the job market. If a spouse is deliberately underemployed to reduce alimony, the judge may assign higher income. However, if a spouse is unable to work due to age, health, or caregiving responsibilities, the judge considers that too.
Can alimony be changed after the divorce is final?
Yes, if there is a significant change in circumstances. A substantial job loss, disability, retirement, or a major increase in the receiving spouse's income can be grounds for modification. The party seeking the change must file a request with the court and prove the change was not foreseeable when the order was made.
Does remarriage end alimony?
Yes. If the receiving spouse remarries, alimony terminates automatically in most cases. If the receiving spouse enters into a registered domestic partnership, alimony also terminates. The paying spouse does not have to file anything — the law ends it. However, if you are the paying spouse, you may want to notify the court in writing to may support the order is updated in the system.