No Statute: How Washington Courts Review Prenups
Prenups here are governed by Washington Supreme Court case law, because the state has not adopted the Uniform Premarital Agreement Act and has no general prenup statute. The main cases are In re Marriage of Matson and In re Marriage of Bernard.
The state is a community property state, but divorce property division is not limited to community property. The table below separates the prenup rule, the divorce property rule, and the marriage license timing rule that affects wedding planning.
Are Prenups Enforceable in Washington State?
Yes, when they pass Washington’s two-part fairness test, and the spouse asking a court to enforce one has to prove it. An agreement that is fair to the other spouse is enforced outright, while an unfair one survives only after full disclosure, independent advice and an informed, voluntary signature.
A prenup gets thrown out when the party seeking enforcement fails the state’s two-prong case-law test. There are no statutory grounds for a general prenup because the state has no general prenup statute.
Under Bernard, the court first asks whether the agreement makes fair and reasonable provision for the party not seeking enforcement. If the answer is yes, the analysis ends and the court enforces it.
If the agreement does not make fair and reasonable provision, the court asks whether the process was fair. The disclosure question is whether the parties made full disclosure of the amount, character, and value of the property involved.
The second process question is whether the parties entered the agreement fully and voluntarily with independent advice and with full knowledge of their rights. The party seeking to enforce the agreement has the burden of proving validity, as Berg states while citing Bernard.
In Bernard, the timing and draft history mattered. The husband and his lawyer worked on the agreement for nearly six months, the wife received a draft only 18 days before the wedding, her lawyer received a substantially different version three days before, and she signed the day before the wedding expecting to amend it later.
In Berg, the court looked at a late presentation, limited advice, asset differences, income differences, and the long marriage. Our appellate prenup study reviewed 92 U.S. appellate validity disputes from 2021 to 2025 and found no appellate decision from the state on a prenup’s validity in that period.
- A Washington-licensed lawyer for each partner
- $799 per lawyer, added to the $599 agreement
- Required by the platform when the prenup waives maintenance
Bernard, Berg and Matson
Prenup cases here turn on fairness first, then process if the agreement does not make fair and reasonable provision. The cases below show how timing, disclosure, independent advice, and full knowledge of rights affect enforcement.
Bernard and Berg both ended with the agreements voided. Matson is the Washington Supreme Court case courts cite for the two-part review of prenups.
Timing, Disclosure and Independent Advice
A prenup here is valid when it satisfies the Washington Supreme Court’s fairness review, with the party seeking enforcement carrying the burden. The writing process, disclosure, timing, and legal advice all feed into that review.
A Written, Signed Agreement
No state statute sets general formalities for a prenup. Local courts expect a written, signed agreement, and there is no notary requirement for the prenup itself.
RCW 26.16.120 is different. It addresses a community property agreement about the status of community property to take effect on the death of either spouse, and it must be in writing, witnessed, acknowledged, and certified like a deed.
Independent Advice Can Decide the Case
State case law asks whether the parties entered the agreement fully and voluntarily with independent advice and with full knowledge of their rights when the deal is not fair and reasonable to the party resisting enforcement. A lawyer is not listed as a statutory formality, because the state has no general prenup statute, but independent advice can become central in court.
How Much Time Before the Wedding?
The state has no fixed prenup signing deadline. Bernard shows why timing still matters, because the wife received a draft 18 days before the wedding, her lawyer received a substantially different draft three days before, and she signed the day before the wedding.
The license runs on a separate clock. RCW 26.04.180 says a license may not be used until three days after the application date and becomes void if the marriage is not solemnized within 60 days of issuance.
Is Washington a 50/50 Divorce State?
The state is not a 50/50 divorce state. It is a community property state, but RCW 26.09.080 tells the divorce court to make a just and equitable disposition of property and liabilities.
Community property is the default category for property acquired after marriage that is not separate property. RCW 26.16.030 states that property acquired after marriage is community property unless it fits the separate-property rule.
Separate property includes property owned before marriage. RCW 26.16.010 also treats property acquired afterward by gift, bequest, devise, descent, or inheritance, with its rents, issues, and profits, as separate property.
The divorce statute still reaches both categories. RCW 26.09.080 says the court disposes of the property and liabilities of the parties, either community or separate, as appears just and equitable, without regard to misconduct.
The court considers the nature and extent of community property, the nature and extent of separate property, the duration of the marriage, and each spouse’s economic circumstances. The statute also includes consideration of awarding the family home to the parent with whom the children mostly reside.
Without a prenup, premarital assets, gifts, and inheritances start in the separate-property category. A local court can still award one spouse’s separate property to the other if the court finds that result just and equitable.
Limits on What a Washington Prenup Can Do
A prenup here can address property rights and maintenance, but the agreement remains subject to the state’s case-law fairness review. The community property system and just-and-equitable divorce statute make careful property descriptions especially relevant.
The agreement can state how the couple wants to treat property brought into the marriage, property acquired during marriage, and income or gains connected to separate property. It can also record disclosures, which matters if a court later examines the amount, character, and value of property involved.
The default divorce rule gives the court authority over property and liabilities, either community or separate. A prenup can be written against that background, but a court reviewing enforcement still applies Matson and Bernard.
Maintenance terms need special care because the default rule lets the court award maintenance to either spouse in amounts and for periods it deems just. A waiver or limit can be reviewed under the same fairness and process test.
What Couples Can Settle
- Classify premarital property between the spouses.
- State how property acquired during marriage will be owned between the spouses.
- Address rents, issues, and profits from separate property.
- Allocate responsibility for liabilities if the marriage ends.
- Set terms for spousal maintenance, including a waiver, subject to state case-law review.
- Record disclosed assets by amount, character, and value.
What a Prenup Cannot Fix
- Remove the state’s case-law review for fairness and procedure.
- Make missing disclosure or involuntary signing valid by adding a notary.
- Use the deed-style formalities for a death-focused community property agreement as a substitute for prenup review.
- Rely on a UPAA provision, because the state has not adopted the UPAA.
Maintenance Without a Formula
Spousal maintenance here is discretionary under RCW 26.09.090. The court may award maintenance to either spouse in amounts and for periods it deems just, without regard to misconduct.
The statute lists factors for the court to consider. Those include the requesting spouse’s financial resources, time needed for education or training, the standard of living during the marriage, the duration of the marriage, age and physical and emotional condition, and the other spouse’s ability to pay.
There is no formula or cap in the statute. That makes maintenance language in a prenup more than a drafting detail, because the agreement may be compared with a broad default rule.
A prenup here can include maintenance terms, including a waiver. HelloPrenup requires attorneys when a prenup here waives spousal maintenance, and any enforcement fight would still be measured under the state’s fairness and procedure test.
Home Prices, Incomes and Washington Prenups
Local divorce courts can divide separate property as well as community property, so even a partner whose only assets predate the wedding has a reason to put terms in writing.
The U.S. Census Bureau reports a state median home value of $602,200, the fourth highest among the 50 states. That matters because home equity can become the largest asset in a marriage, and the statute lets the divorce court consider the family home separately when children mostly reside with one parent.
Married-family income here is $136,875, above the national figure and above nearby Oregon and Idaho. Income affects property growth during marriage and can also matter when a maintenance claim is made.
Of residents who have ever married, 23.9% have married more than once, slightly above the national 23.5% and below Oregon and Idaho. Married couples own their home less often than average, 80.1% against 81.9%.
How Much Does a Prenup Cost in Washington State?
A prenup cost here depends on attorney time, whether both partners hire lawyers, and whether the couple uses an online platform. Clio Legal Trends reports that lawyers in the state average $322 per hour across all practice areas, typically ranging from $159 to $432, and Clio publishes no separate family-law figure for the state.
As an illustration, eight hours at $322 per hour is $2,576 per lawyer. That is only a math example based on the statewide average, because actual time depends on assets, disclosures, negotiations, and maintenance terms.
HelloPrenup lists pricing at $599 per couple. The platform lists an attorney for each partner at $799 per partner, an Attorney-Signed package at $2,197, e-notarization for an added $50, and attorney Q&A for an added $49.
The cost table below compares the attorney-hour illustration with online pricing. Maintenance waivers can change the path because the platform requires attorneys when a prenup here waives spousal maintenance.
| Route | Cost | What you get |
|---|---|---|
| Online prenup | $599 per couple | Washington agreement with financial disclosure built in and a free consultation |
| Online prenup, attorney for each partner | $2,197 per couple | Independent Washington counsel on both sides, the advice Bernard weighs |
| Single attorney add-on | $799 per partner | One Washington lawyer for one partner |
| Hourly lawyer, all fields | $322 per hour | Clio’s Washington average across practice areas. Sixteen hours split between two lawyers would be $5,152, as an illustration |
Building a Prenup That Survives Bernard Review
A prenup here is built around written terms, full disclosure, and a signing process that can withstand Bernard review. The steps below match the issues courts examine when enforcement is disputed.
- List Property CategoriesSeparate premarital property from property expected to be acquired during marriage. Use the state’s community property rule as the starting point.
- Prepare Full DisclosuresRecord the amount, character, and value of property involved. Those words match the disclosure question local courts use when reviewing process.
- Draft Property TermsState how property and liabilities will be treated if the marriage ends. Include separate-property income or gains if those terms matter to the couple.
- Address Maintenance TermsDecide whether the agreement will set, limit, or waive spousal maintenance. A waiver can require attorney involvement on some online platforms.
- Use Independent AdviceState case law examines whether each party had independent advice and full knowledge of rights when the agreement is not fair and reasonable. Build time for review before signing.
- Sign Written CopiesCourts here expect a written, signed agreement. A notary is not required for the prenup itself, although separate community property agreements for death have deed-style formalities.
Changing the Agreement Once You Are Married
Changing a prenup after the wedding is not governed by a general prenup statute, because the state has no such statute. A later change faces the same case-law concerns as the original, including disclosure, voluntariness, independent advice and knowledge of rights.
State law also has a separate statute for community property agreements that take effect on death. RCW 26.16.120 requires that type of agreement to be in writing, witnessed, acknowledged, and certified like a deed.
A post-wedding agreement is a different document from a premarital agreement. The differences are laid out in our guide to prenups and postnups.
What Washington Couples Ask
Washington couples ask about secrecy, the burden of proof and separate property. The answers rely on the RCW and the Washington cases above.
Can I get a prenup without my wife knowing in Washington?
No. A prenup is a contract both partners sign, and in Washington the spouse who later relies on it must prove the other signed voluntarily, with full disclosure and independent advice whenever the terms are not fair to them.
Who has to prove a prenup is valid in Washington?
The spouse seeking to enforce it carries the burden of proving its validity. That is the reverse of states using the uniform act, where the spouse challenging the agreement has to prove it invalid.
Can a Washington court give away my separate property in a divorce?
Without a prenup, it can. RCW 26.09.080 tells the court to divide all property and liabilities, community or separate, in a just and equitable way, so assets owned before the wedding are not automatically off the table.
Does Washington law require notarizing a prenup?
No notary requirement applies to the prenup itself. A separate community property agreement that takes effect at death does need deed-style formalities under RCW 26.16.120.
Does a prenup protect you 100% in Washington?
No. The spouse enforcing it carries the burden, and an unfair agreement fails unless full disclosure, independent advice and an informed, voluntary signature are proven. Bernard and Berg both ended with the agreement thrown out.
Oregon and Idaho Next Door
Oregon follows the uniform act and Idaho is a community property state like Washington. If one of you lives across the Columbia or in Idaho, compare those guides.
Sources
Washington’s rules come from Supreme Court and Court of Appeals decisions plus the RCW sections on property, maintenance and licenses. Census and Clio supply the figures.
- RCW 26.09.080, disposition of property and liabilities (Washington Legislature)
- RCW 26.09.090, maintenance (Washington Legislature)
- RCW 26.16.010 and 26.16.030, separate and community property (Washington Legislature)
- RCW 26.16.120, community property agreements (Washington Legislature)
- RCW 26.04.180, marriage license timing (Washington Legislature)
- In re Marriage of Bernard, Washington Supreme Court (CourtListener)
- In re Marriage of Berg, Washington Court of Appeals (Washington Courts PDF)
- In re Marriage of Matson, Washington Supreme Court (CourtListener)
- U.S. Census Bureau, American Community Survey 1-year estimates
- Clio Legal Trends, lawyer hourly rates in Washington
- Marriage Science, Do Prenups Hold Up in Court? Appellate study
Not legal advice. This article is general information only. Prenup laws differ by state and change over time. Consult a licensed attorney in your state before acting on anything here.
