How is Spousal Maintenance Calculated in Washington?

Washington calls it "spousal maintenance" rather than alimony, and the state has no statutory formula for calculating it. Under RCW 26.09.090, courts award maintenance in whatever amount and for whatever period they deem just — after weighing six statutory factors and without any regard to fault. That last part matters: misconduct has no effect on maintenance in Washington. Adultery, cruelty, and similar grounds don't enter the analysis at all.

There's no formula — but practitioners have developed an informal benchmark calculation used as a starting point in negotiations. Understanding it can help you walk into mediation or attorney meetings with a realistic sense of the range. A 2024 Washington Supreme Court ruling also changed how courts think about one of the six factors, clarifying that a requesting spouse doesn't need to prove they can't cover basic needs.

The Six Statutory Factors

Washington courts weigh six factors when deciding whether to award maintenance and in what amount. No formula tells them how to weigh these factors against each other — that's left to judicial discretion. Courts don't have to award maintenance even when one spouse earns significantly more; they also don't have to deny it just because the requesting spouse is employed.

The six factors are: the financial resources of the requesting spouse and their ability to meet their own needs independently; the time needed to acquire education or training to find suitable employment; the standard of living established during the marriage; the duration of the marriage; the age and physical and emotional condition of the requesting spouse; and the paying spouse's ability to meet their own financial needs while paying maintenance.

In practice, the factors that tend to carry the most weight are the income gap between the spouses, the length of the marriage, and the requesting spouse's realistic path to self-sufficiency. A 25-year marriage where one spouse left a career to raise children produces a very different analysis than a five-year marriage between two earners with similar incomes.

The 2024 Supreme Court Ruling: Need Is Not a Prerequisite

In August 2024, the Washington Supreme Court issued a significant ruling clarifying that a spouse seeking maintenance does not need to prove they are unable to meet their basic needs in order to qualify. Prior to this ruling, some lower courts had effectively treated demonstrated hardship as a threshold requirement — if a spouse could cover their basic expenses, some judges denied maintenance outright.

The Supreme Court held that financial need is one of the six statutory factors — not a gatekeeper. A requesting spouse who is fully employed but earning significantly less than their lifestyle during the marriage may still be entitled to maintenance. The court looks at all six factors together, and the inability to replicate the marital standard of living may be sufficient even without a hardship showing.

This ruling is particularly relevant for spouses who earn a decent income but face a large gap between their earnings and the standard of living established during a high-income marriage. It doesn't guarantee an award — but it removes a barrier that some courts had previously used to deny requests without full analysis.

The Informal Practitioner Calculation

Washington has no statutory formula for maintenance, but attorneys and mediators commonly use an informal benchmark as a starting point in negotiations. The calculation is:

Step 1: Take one-third (33%) of the higher-earning spouse's monthly net income.
Step 2: Subtract one-quarter (25%) of the lower-earning spouse's monthly net income.
Step 3: Apply a cap: the recipient's total monthly income (their own income plus maintenance) should not exceed 40% of the combined household net income.

This is not a legal formula. Courts are not required to follow it, and many awards deviate significantly based on the specific circumstances. It's a starting point for conversations — not a prediction.

Duration: How Long Does Maintenance Last?

Washington sets no statutory cap on maintenance duration. Courts determine length case by case. Practitioners informally reference roughly one year of support per three to four years of marriage as a starting point — so a 12-year marriage might informally suggest three to four years of support. This carries no legal weight; it's a benchmark courts may consider but aren't required to follow.

Longer marriages — particularly those over 20 years where one spouse left the workforce or significantly reduced their career — may result in extended or open-ended maintenance. Short marriages between two working spouses often produce short rehabilitative awards or no maintenance at all. Courts may also award maintenance for a trial period, review it at a future date, and then extend or terminate based on each spouse's actual progress toward self-sufficiency.

How Maintenance Ends in Washington

Remarriage of the recipient terminates maintenance automatically — unless the divorce agreement specifically provides otherwise. Courts rarely preserve maintenance beyond remarriage, but parties can negotiate it into a settlement.

Death of either party terminates maintenance unless the decree specifically continues it through a life insurance or other arrangement.

Cohabitation does not automatically terminate maintenance in Washington the way remarriage does. A paying spouse who believes the recipient is in a supportive cohabiting relationship may file a motion to modify, but must show the cohabitation materially changes the recipient's financial circumstances. Courts look at whether the recipient is receiving substantial financial support from the new partner — not simply whether they're living together.

Substantial change in circumstances allows either party to seek modification at any time. A significant income increase for the recipient, a job loss for the payor, or a major health change may all be grounds. The change must be unanticipated and material — not a minor fluctuation.