PRENUP950 · CALIFORNIA
Prenup for Business Owners in California
Own a business—or plan to start one? Put ownership, growth and financial expectations on the table before marriage.
Published by Prenup950 · September 12, 2026.
Legal services by U2U Law Professional Corporation. Meet Nazli Usaklioglu, Esq.
A California prenup can address business ownership, future growth, income and what happens if the marriage ends. The right terms depend on your existing ownership, financing and plans for both partners. Start with clear financial information and individual legal advice.
Why business owners consider a prenup
A business may represent years of work, family investment or a future income stream. A prenuptial agreement can help partners discuss those interests before marriage, including what each person expects if one partner contributes money or work to the business.
Under California’s default rules, property acquired during marriage while domiciled in California is generally community property, subject to exceptions. Property owned before marriage, and individual gifts or inheritances, is generally separate property. See Family Code § 760 and § 770. A business held before marriage can still raise questions about marital contributions, compensation and growth. The company’s name or formation date alone does not answer every question.
What can a business-owner prenup address?
Family Code § 1612 allows partners to agree on property rights and disposition within legal limits. Topics to discuss include:
- Existing ownership: your shares, membership interests and ownership percentage when you marry.
- Growth and income: how the agreement should treat appreciation, salary, distributions and retained earnings.
- Future ventures: companies or ownership interests acquired after the wedding.
- Each partner’s contributions: money, unpaid work, guarantees or a career change to support the business.
- A future separation: the intended financial treatment of the business, with a workable approach to valuation if needed.
These are planning topics, not automatic protections. A prenup cannot replace a company’s operating agreement, erase a lender’s rights or guarantee a particular result in court.
What should you bring to the attorney?
| Bring or identify | Why it helps |
|---|---|
| Ownership documents and a current ownership summary | Identify what you own, restrictions on transfers and interests held with others. |
| Recent financial statements, tax returns and existing valuations | Explain the business’s financial position and the basis for any stated value. |
| Loans, guarantees and major capital contributions | Make liabilities and funding sources part of the discussion. |
| Equity grants, option agreements and vesting schedules | Separate questions about existing rights, future vesting and work performed during marriage. |
| Plans for either partner’s work or investment | Address expectations before contributions become disputed. |
If you do not have a reliable valuation, tell the attorney. Do not substitute a guess for financial disclosure. The financial disclosure checklist also covers personal assets and debts.
What about startup equity, stock options or RSUs?
Equity compensation needs attention to the actual grant terms, vesting conditions and relevant dates. A founder’s ownership interest may raise different questions from an employee’s restricted stock units or options. Bring the agreements rather than assuming every interest is treated the same way. Ask whether valuation, tax or additional specialist advice is needed.
A practical conversation before drafting
Illustrative example: one partner owns a company and the other expects to reduce paid work to help it grow. Useful questions include whether that contribution will be compensated, how profits will be used and what financial arrangements both partners expect if they separate. This is a planning example, not a client result or a recommended outcome.
If you also want to address financial support after separation, read our California prenup and spousal support guide. Property terms and support terms require separate attention.
Can I start with Prenup950’s $950 package?
The $950 package for one client includes a 15-minute attorney consultation, questionnaire review and personalized drafting. Explain your business interests during the consultation so the attorney can confirm the scope. Complex valuation, tax analysis, extensive negotiation and additional work are not included unless agreed in the engagement. Your partner’s independent attorney is separately retained.
Start early: California generally requires at least seven calendar days between first presentation of the final prenup and signing. See the seven-day rule and signing timeline. Already married? Ask about a postnuptial agreement, which requires a different analysis.
Call (424) 600-7167 See the $950 package
General California legal information; not advice for your particular business or agreement. Enforceability depends on the terms and circumstances, including the safeguards in Family Code § 1615.