How prenups work in Washington.
What Washington law does to your money automatically, and how to set your own rules.
- Default Property Regime (Community Property): Washington is a Community Property state where judges have broad statutory authority under RCW 26.09.080 to divide both community and separate property unless a valid prenup governs.
- Typical Washington Prenup Cost: Unaligned Seattle/Bellevue couples pay $8,000 to $13,500 across two lawyers, compared to $3,200 to $5,000 when arriving aligned with Vespera.
- The #1 Washington Legal Trap to Know: Under the Washington Supreme Court's *Matson* two-prong test, if a prenup is not substantively fair to the less-wealthy partner, it will only survive if procedural fairness (independent counsel, full disclosure, and early timing) is rock-solid.
You already have a prenup in Washington (the government wrote it).
Compare what Washington's automatic community property rules do to your money vs. what you can choose together in Vespera.
1. Salary, Bonuses & RSUs Earned After the Wedding
Unvested RSUs and stock options that vest during marriage are apportioned between separate and community property under the *Marriage of Short* time-rule formula.
Decide together whether base salaries fund a joint household account while pre-wedding equity grants or a portion of bonuses stay separate.
2. Buying a Home When One Partner Pays More of the Down Payment
Using separate cash for a joint home down payment risks commingling unless clearly traced and protected by written agreement.
Credit each partner their exact pre-marital down payment ($150k vs. $30k) off the top first, then split net home appreciation 50/50.
3. Pre-Marital Savings or a Pre-Marital Condo that Appreciates
Unlike many states, RCW 26.09.080 puts even separate property before the court for "just and equitable" division unless a valid prenup protects it.
Keep pre-marital properties and passive/active growth clearly separated, even if marital income helps pay a mortgage or renovation.
4. Student Loans & Debt Brought Into the Marriage
Pre-marital student loans are separate liabilities, though community earnings can be garnished for certain obligations without planning.
Keep pre-marital student loans legally separate while optionally allowing household cash flow to pay them down with a fair reimbursement credit.
5. Spousal Support (Alimony) & Career Pauses for Children
Washington has no rigid statutory maintenance calculator; judges have wide discretion based on marriage length and standard of living.
Replace Washington's unpredictable court formulas with a custom safety net, such as guaranteed retirement contributions during a career pause for kids.
Washington prenups by the numbers.
$400 to $650/hr per lawyer
Typical billing rate in Seattle, Bellevue, Redmond, and Kirkland.
$8,000 to $13,500
2 attorneys debating RSU vesting and *Matson* fairness over 12+ hours.
$4,200 to $7,000 saved
Pre-aligns both partners on RSU and home equity terms before lawyers bill.
90 to 180 days before wedding
Essential to satisfy Prong 2 procedural fairness under *In re Marriage of Matson*.
Unvested Tech Equity & Home Down Payments
Amazon, Microsoft, Meta, and startup RSUs plus Eastside/Seattle real estate.
RCW 26.09.080 & *Marriage of Matson*
Two-prong substantive and procedural fairness doctrine.
The 5 checkpoints that make a Washington prenup hold up in court.
Why a $599 boilerplate printout gets challenged in Washington courts, and how Vespera prepares you for all 5 statutory requirements.
Satisfying Prong 1: Substantive Fairness (*Matson*)
Washington courts first ask whether the agreement makes fair and reasonable provision for the less-propertied spouse.
Vespera guides couples toward balanced team models and records every reciprocal compromise in the Compromise Audit Trail.
Full & Fair Financial Disclosure
Under Prong 2 of *Matson*, both partners must have full knowledge of the value and character of all RSU grants, accounts, and debts.
Formats clear Exhibit A and B schedules including unvested equity grants.
Independent Legal Counsel for Both Partners
Independent advice from separate Washington attorneys is a cornerstone of procedural fairness under *Matson* and *Bernard*.
Generates tailored packets for both the Drafting and Reviewing attorneys.
Ample Pre-Wedding Review Time
Signing a prenup shortly before the wedding failed in *In re Marriage of Bernard* even when counsel was involved.
Helps couples align 3 to 6 months early with zero stress.
Notarized Execution
Proper written execution and notarization ensure real estate and separate property classifications are respected.
Provides clean .docx and PDF briefs for your Washington counsel.
Calculate your Washington lawyer billable-hour savings.
Pre-loaded with Seattle & Bellevue's average family attorney rate ($525/hr per lawyer).
1. Attorney Rate & Topics
2. Cost & Enforceability Comparison
High court-challenge risk: unrepresented $599 forms often fail on support waivers, RSUs, or business equity.
14 combined hrs negotiating from scratch at $1,050/hr combined.
Explore Washington prenup guides by financial situation.
Tech Employees with Unvested RSUs & Options
Founders & Business OwnersStartup Founders, Small Business & LLC Owners
Unequal Home Down PaymentsCouples Buying a Home with Asymmetric Savings
Physicians & MedicalDoctors & Dentists with Med School Debt + High Future Income
Student Loans & Debt ShieldCouples Protecting One Partner from Pre-Marital Debt
Inheritance & Family WealthCouples Protecting Family Gifts, Trusts & Future Inheritances
Career Pauses & Family CareCouples Protecting a Partner Who Pauses Work for Kids
Second Marriages & Blended FamiliesSecond Marriages Protecting Existing Kids & Retirement
Washington prenup FAQs
Direct answers on Washington attorney costs, community property rules, and statutory timelines.
Do we both need a lawyer for a prenup in Washington?
Yes. Under the Washington Supreme Court's *Matson* and *Bernard* decisions, having independent legal counsel for both partners is critical to proving procedural fairness if the agreement is ever reviewed in court.
Can a prenup protect unvested Amazon or Microsoft RSUs in Washington?
Yes. Without a prenup, Washington uses the *Marriage of Short* time-rule formula to treat unvested stock grants that vest during marriage as partially community property. A prenup lets you set clear grant-date or custom vesting rules.
How much does a prenup lawyer cost in Seattle or Bellevue?
Family law attorneys in Seattle and Bellevue typically charge $400 to $650 per hour. Hiring two attorneys cold costs $8,000 to $13,500, while arriving aligned with a Vespera brief reduces total legal fees to $3,200 to $5,000.
Can we waive spousal maintenance in a Washington prenup?
Couples can limit or waive spousal maintenance, but Washington courts evaluate whether the overall agreement is substantively fair under *Matson*. Including balanced career-pause protections makes your agreement far more resilient.
How early before our Washington wedding should we start?
Start 90 to 180 days before your wedding date. Washington courts strictly scrutinize agreements signed close to the wedding ceremony.
Editorial & Statutory Framework Attribution • RCW 26.09.080 & Washington *In re Marriage of Matson* Two-Prong Test
Compiled by the Vespera Family Law Research Team for Washington (Seattle & Bellevue) couples preparing for independent legal counsel.
Agree on your prenup before hiring lawyers.
Answer guided prompts privately, see where you match, and hand your attorneys an agreed brief.
Vespera is a pre-lawyer financial alignment workspace, not a law firm, and does not provide legal advice or draft binding contracts.