Washington Alimony / Spousal Support Estimator

Washington has no statutory formula for calculating spousal maintenance. Under RCW 26.09.090, courts use broad judicial discretion to weigh six factors including each spouse's financial resources, marriage duration, standard of living, and the paying spouse's ability to pay. Practitioners informally estimate duration at roughly 25% of the marriage length, but this guideline is not codified in law.

Washington courts award four types of spousal maintenance: temporary maintenance during dissolution proceedings under RCW 26.09.060, rehabilitative maintenance to fund education or job training, long-term maintenance typically for marriages exceeding 20–25 years, and disability maintenance when a spouse cannot become self-supporting due to a medical condition. The court determines which type applies based on the specific circumstances of each case.

Washington has no statutory durational limits on spousal maintenance. Courts determine duration case by case using the six factors in RCW 26.09.090. Short marriages (under 5 years) typically receive brief maintenance, mid-length marriages (5–25 years) may receive roughly one year per three to four years married, and long marriages (25+ years) may receive indefinite maintenance. These are informal practitioner guidelines, not legal rules.

Under RCW 26.09.090, Washington courts consider six statutory factors: the requesting spouse's financial resources, time needed for education or training, marital standard of living, marriage duration, the requesting spouse's age and physical and emotional condition, and the paying spouse's ability to meet obligations while paying maintenance. The 2024 In re Wilcox decision confirmed these factors are nonexclusive and financial need is not a prerequisite.

Yes, under RCW 26.09.170, either party can petition to modify spousal maintenance by demonstrating a substantial change in circumstances not anticipated at the time of the original decree. Qualifying changes include involuntary job loss, significant income changes, serious illness, or retirement. Maintenance terminates automatically upon the recipient's remarriage or death of either party unless the decree specifies otherwise.

No, Washington is a pure no-fault dissolution state, and RCW 26.09.090 requires maintenance decisions be made without regard to marital misconduct. Adultery cannot increase or decrease a maintenance award. The only narrow exception is if adultery caused financial waste of marital assets — such as spending community funds on an affair — which may affect property division but not the maintenance calculation itself.

For federal tax purposes, spousal maintenance ordered under divorce agreements executed after December 31, 2018 is neither deductible by the payer nor taxable income for the recipient under the Tax Cuts and Jobs Act of 2017. Washington state imposes no personal income tax, so there is no state-level tax impact on maintenance payments. Agreements finalized before 2019 may still follow the older tax rules unless modified.

Washington allows prenuptial agreements to address spousal maintenance under the Uniform Premarital Agreement Act (RCW 26.16.120), but courts scrutinize maintenance waivers carefully. Both parties must voluntarily sign with full financial disclosure, and the agreement cannot be unconscionable. If enforcement would leave one spouse destitute or dependent on public assistance, Washington courts will likely set aside the waiver regardless of what the prenup states.