Divorce in Washington: Costs, Laws, and Calculators (2026)

Everything you need to understand the financial reality of divorce in Washington. State-specific costs, formulas, and free calculators.

Our estimate, uncontested
$2,000 - $6,000
Our estimate, contested
$15,000 - $50,000
Estimated timeline
4 - 14 months
DCE State Score
55 / 100

Washington divorces typically cost 19% less than the national average of $12,900.

Washington is a community property state with no-fault grounds only and no residency requirement to file.

Washington sets a waiting period of 90 days after filing, and court scheduling adds more on top of it: our estimate puts an uncontested Washington case at about 120 days. Washington is a community property state where marital assets and debts are split equally by default, though courts retain discretion to deviate from 50/50 for "just and equitable" reasons. Washington child support is read off the economic table at RCW 26.19.020, which this site has transcribed in full; the table is presumptive up to $50,000 of combined monthly net income, and above that a court may exceed the presumptive amount on written findings. The King County court system has significant backlogs for contested matters.

What this section says about Washington's divorce grounds and property system is a characterisation this site carries rather than a finding. That is our own record rather than Washington's own law.

Key Fact

Washington is one of only five states that set no residency requirement to file. The top of its child support table is a floor rather than a cap: RCW 26.19.065(3) lets a court go above $50,000 of combined monthly net income and gives it no route to go below.

Recent Development

Washington updated procedures for dissolving registered domestic partnerships, aligning them more closely with divorce procedures and clarifying how community property rules apply to domestic partnership assets. The changes affect same-sex couples and opposite-sex couples over age 62 who registered domestic partnerships.

Washington Divorce Quick Facts

State law, attorney rates, and procedural rules for Washington.

Property division system, in our record
Community Property (50/50 default)
How alimony is decided, in our record
Judicial discretion
Child support formula
Income Shares Model
Mandatory waiting period
90 days
Residency requirement
None
Mediation required, in our record
No
Equal parenting presumption, in our record
No
Fault divorce available, in our record
No
Collaborative divorce available
Yes, and our record says the same for all fifty states
Filing fee range
$254 - $314
Attorney hourly rates, our estimate
$275 - $500/hour
Filing fee last checked
May 30, 2026

Where these Washington figures come from, since it is fair to ask. The court filing fee is the one we have gone back to, and even there we are recording what a fee schedule says rather than citing a document we have opened. Everything else on this page that is a cost or a length of time - attorney rates, the mediator's per-session rate, QDRO preparation, the average totals, the typical number of months - came into our data when the site was first built, and nobody has checked any of it against a published source since. Our own value distributions give the game away: attorney rates across all fifty states take seven distinct values at the low end, every one of them a multiple of 25, which is what a set of estimates looks like rather than fifty separate readings. We think they are in the right neighbourhood. We are not going to call them Washington averages. For a real number, a Washington family law attorney will quote you their own rate, and the clerk of court in your county will tell you the filing fee to the dollar.

The waiting period and the residency requirement in that table are in the same position, and they matter more, because a wrong number there is a filing in the wrong place rather than a bad estimate. Both came into our data at the original build and nobody here has read Washington's dissolution statute. Confirm both with the clerk of court in the county where you will file, and ask specifically whether the wait runs from the day you file or from a separation date, because states do it both ways and our records hold one number for both cases.

DCE State Score Breakdown

Our proprietary index ranks every state on cost, complexity, and timeline. Higher is more favorable.

Overall DCE State Score

55/ 100

A score of 55 means Washington is roughly average in terms of divorce cost and complexity.

Cost Score

23/ 40

Based on filing fees, attorney rates, and total typical costs in Washington.

Complexity Score

22/ 30

Reflects judicial discretion, mandatory mediation, and procedural hurdles.

Timeline Score

10/ 30

Driven by waiting periods and average case duration from filing to decree.

Divorce Calculators for Washington

All 15 calculators preconfigured for Washington.

Washington Divorce Laws Overview

Property Division

Our record has Washington as a community property state. That is our own record rather than Washington's own property division law. Where that holds, most assets and debts acquired during the marriage are owned equally by both spouses and are typically divided 50/50 in a divorce. Assets owned before the marriage, or received as gifts or inheritance during the marriage, are generally considered separate property and are not subject to division.

Spousal Support (Alimony)

Washington judges have broad discretion in setting alimony awards, and our record carries no statutory formula for the state. The factors it lists are: length of the marriage, standard of living during the marriage, each spouse's earning capacity, financial resources of each spouse. Those came into our data at the original build rather than from a reading of the statute. Outcomes can vary significantly depending on the judge and the specific facts of your case.

Child Support

Washington uses the Income Shares Model for child support, and we have read the guideline that says so. In that model both parents' incomes are combined, a total support obligation is set from that combined figure and the number of children, and each parent's share is proportional to their share of the combined income. The paying parent pays their share to the receiving parent. The figure Washington's own guideline works from is combined monthly net income, under RCW 26.19.071(5), applied to the RCW 26.19.020 economic table.

Custody and Parenting Time

Washington courts determine custody on the best interests of the child. Our record carries no presumption of equal parenting time for the state and puts judicial discretion here in the middle of its three-point scale. That is our own record rather than Washington's own custody law. Courts generally favor arrangements that allow both parents meaningful involvement in the child's life.

This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.

Recent Law Changes in Washington

All state updates

Notable updates to Washington family law that affect divorce outcomes and costs.

Washington Clarifies Domestic Partnership Dissolution Procedures

Minor

Our record dates this to June 2022

Washington domestic partners dissolving their partnership now follow procedures more similar to divorce. If your domestic partnership has significant shared assets, the community property rules apply in the same way they do to marriages.

No document behind this change has been opened here. The link goes to Washington's own site rather than to the instrument, so read the change itself as our record.

Frequently Asked Questions

How much does a divorce cost in Washington?
Our working estimate is $2,000 - $6,000 for an uncontested Washington divorce and $15,000 - $50,000 for a contested one, with the spread depending on attorney involvement, custody disputes, and the complexity of the marital estate. Court filing fees alone are $254 - $314. Both totals are ours rather than measured averages: they came into our data when this site was built and no survey stands behind them.
How long does a divorce take in Washington?
Our records put Washington's mandatory wait at 90 days, an uncontested case at roughly 4 months, and a contested one at about 14. Treat all three as ours rather than as findings: we have not read Washington's dissolution statute or its court caseload statistics. The clerk of court in the county where you will file can confirm the wait, and whether it runs from filing or from a separation date, which differs by state.
Is Washington a community property state?
Our record has Washington as a community property state. That is our own record rather than Washington's own property division law. Where that holds, most assets and debts acquired during the marriage are owned equally by both spouses and are typically divided 50/50 in a divorce. Assets owned before the marriage, or received as gifts or inheritance during the marriage, are generally considered separate property and are not subject to division.
How is child support calculated in Washington?
Washington uses the Income Shares Model for child support, and we have read the guideline that says so. In that model both parents' incomes are combined, a total support obligation is set from that combined figure and the number of children, and each parent's share is proportional to their share of the combined income. The paying parent pays their share to the receiving parent. The figure Washington's own guideline works from is combined monthly net income, under RCW 26.19.071(5), applied to the RCW 26.19.020 economic table.
How is alimony determined in Washington?
Washington judges have broad discretion in setting alimony awards, and our record carries no statutory formula for the state. The factors it lists are: length of the marriage, standard of living during the marriage, each spouse's earning capacity, financial resources of each spouse. Those came into our data at the original build rather than from a reading of the statute. Outcomes can vary significantly depending on the judge and the specific facts of your case.

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