The Prenup Process: Disclosure, Negotiation, Review and Signing

Before You Start: What a Prenuptial Agreement Can and Cannot Do in California

A premarital agreement, the legal term for a prenup, is "an agreement between prospective spouses made in contemplation of marriage and to be effective upon marriage" (Family Code section 1610(a)). In plain words: a contract two people sign before the wedding about how money and property will work once they are married. California's rules for these agreements are collected in the Uniform Premarital Agreement Act, Family Code sections 1600 through 1617. Family Code section 1500 confirms the starting point: the property rights the law gives spouses may be changed by a premarital agreement.

What a prenup can address. Family Code section 1612(a) lists the subjects couples may contract about, including:

• each person's rights in property of either or both of them, "whenever and wherever acquired or located," which covers whether property is treated as separate (one spouse's alone) or community (owned by both);
• the right to buy, sell, use, mortgage, manage and control property;
• what happens to property on separation, divorce, death or any other event;
• making a will, trust or other arrangement to carry out the agreement;
• the death benefit of a life insurance policy;
• which state's law governs the agreement; and
• other matters, including personal rights and obligations, that do not violate public policy or a criminal statute.

What a prenup cannot do. A prenup cannot adversely affect a child's right to support (Family Code section 1612(b)). Terms that violate public policy or a criminal statute fall outside what the Act allows. Spousal support (money one spouse pays the other after separation) can be addressed, but with a condition: under section 1612(c), a spousal support provision is not enforceable against a party who did not have independent counsel when signing, or if the provision is unconscionable at the time someone tries to enforce it.

Decisions to make before drafting. Before anyone writes a first draft, each partner typically pulls together a clear picture of their own finances, thinks through what they want the agreement to accomplish (protecting a business, keeping a home separate, planning for an inheritance, providing for a second marriage's children through estate documents), and considers whether spousal support will be part of it at all.

Why San Diego County matters here. Signing a prenup involves no courthouse. The agreement only comes before a judge if the marriage later ends and one spouse asks to enforce it. For a couple living in San Diego County, that would generally mean the Superior Court of California, County of San Diego, which assigns family cases to its Central, North County, East County or South County Division according to the court's ZIP Code List (ADM-254). The judge in that case applies Family Code section 1615 to decide whether the agreement holds. Every step below is really about building an agreement that can meet that test years from now.

Step 1: Full Financial Disclosure by Both Parties

Disclosure is the foundation the rest of the agreement stands on. Family Code section 1615(a) makes an agreement unenforceable, in the circumstances described below, where "that party was not provided a fair, reasonable, and full disclosure of the property or financial obligations of the other party."

What disclosure typically includes. Each partner sets out their complete financial picture: assets (bank and investment accounts, real estate, retirement accounts, business interests, vehicles), debts (mortgages, student loans, credit cards, business obligations) and income. The usual practice is for each partner to prepare a written schedule of assets and liabilities, exchange it before the agreement is drafted, and attach it to the final agreement as an exhibit. That attachment becomes the record of what each person knew when they signed.

Why this step is not optional. If the agreement is later challenged, the question of what was disclosed is examined closely. Section 1615(a)(2) allows a court to refuse enforcement where the agreement was unconscionable when signed and, before signing, the challenging party (A) did not receive fair, reasonable and full disclosure, (B) did not voluntarily and expressly waive further disclosure in writing, and (C) did not have, or reasonably could not have had, adequate knowledge of the other party's property or financial obligations. Thorough disclosure closes off that route.

How this differs from disclosure in a divorce. People who have read about California divorce sometimes confuse this step with the preliminary declaration of disclosure. That is a separate document served on a Judicial Council form, under penalty of perjury, during a dissolution or legal separation case (Family Code section 2104). Prenup disclosure happens before marriage, privately, between the two partners and their attorneys. It is not filed anywhere.

What comes next. With both schedules exchanged, the drafting and negotiation begin.

Step 2: Negotiating the Terms

This step usually takes the longest, and it is often the one couples dread most. In practice it tends to be quieter than people fear, because much of the back-and-forth runs through the attorneys rather than across the dinner table.

How negotiation is structured. Each partner typically has a separate attorney. One attorney prepares a first draft based on the goals that partner has described. The other attorney reviews it with their own client and proposes changes. Drafts go back and forth until both sides reach terms they are prepared to sign.

Common subjects. Negotiation usually centers on:

• how property each partner owns before the marriage, and property acquired during it, will be characterized;
• how a business interest and its growth during marriage will be treated;
• whether and how spousal support will be addressed, keeping in mind the counsel and fairness condition described above; and
• rights connected to inheritance and to property on death.

The voluntariness boundary. Under Family Code section 1615(a)(1), an agreement is not enforceable if the challenging party proves "That party did not execute the agreement voluntarily." Section 1615(c)(4) adds that a court must find the agreement was not signed under duress, fraud or undue influence, and that neither party lacked capacity. A negotiation that leaves room for real questions, real changes and real time protects both people.

Unconscionability. Unconscionability means terms so one-sided they shock fairness. Family Code section 1615(b) provides: "An issue of unconscionability of a premarital agreement shall be decided by the court as a matter of law." A judge, not a jury, makes that call.

What comes next. As the terms settle, two seven-day rules start to matter, and they shape when the final version can be signed.

Step 3: Independent Legal Counsel and the Advisement Requirement

Family Code section 1615(c)(1) contains the first seven-day rule: "The advisement to seek independent legal counsel shall be made at least seven calendar days before the final agreement is signed."

What "independent counsel" means. An independent attorney represents only one partner's interests, not the couple's shared interests. That is why the usual practice is two attorneys, one for each partner. Under section 1615(c)(1), a court evaluating voluntariness looks for one of two things: the challenging party was represented by independent counsel at signing, or, after being advised to seek counsel, expressly waived representation in a separate writing.

If a partner proceeds without an attorney. The law sets out extra steps for an unrepresented party in section 1615(c)(3). That party must be fully informed of the agreement's terms and basic effect and of the rights and obligations being given up, and must be proficient in the language of both the explanation and the agreement. The explanation must be put in writing and delivered before signing. On or before signing, the unrepresented party signs a document declaring they received that information and stating who provided it. Going without an attorney also affects any spousal support terms, as explained in the section on what a prenup cannot do (section 1612(c)).

The timing is a floor. The seven calendar days are a statutory minimum. Advising someone to get a lawyer the day before the signing does not satisfy it.

San Diego County context. The Superior Court of California, County of San Diego does not draft, review or approve prenuptial agreements. That work belongs to each partner's attorney. The court's role, if any, comes later.

Step 4: The Seven-Day Review Period Before Signing

This is the step that most often surprises couples working against a wedding date. For agreements signed on or after January 1, 2020, Family Code section 1615(c)(2)(B) requires that the party "had not less than seven calendar days between the time that party was first presented with the final agreement and the time the agreement was signed, regardless of whether the party is represented by legal counsel."

When the clock starts. It starts when the final agreement is first presented, not an earlier draft. Weeks of reviewing drafts do not count toward this period if the version actually signed arrives later.

Changes to the terms. The statute carves out only "nonsubstantive amendments that do not change the terms of the agreement." A change to the terms after the final agreement is presented generally means the revised document is the final agreement, and the seven days run from when that version is presented.

It applies with or without a lawyer. Unlike the earlier version of the law, the current rule applies even when a partner has an attorney.

The practical consequence. The final agreement cannot be handed over and signed at the same meeting. Couples usually plan the calendar backward from the signing date with this in mind.

Older agreements. Agreements signed between January 1, 2002, and January 1, 2020, fall under section 1615(c)(2)(A), which tied the seven days to when the party was presented with the final agreement and advised to seek independent counsel.

Step 5: Reviewing and Signing the Agreement

The signing itself is usually the shortest step. Each partner's attorney reviews the final document with their own client, confirms the disclosure schedules are attached, and confirms the timing requirements have been met.

The formal requirements. Family Code section 1611 requires a premarital agreement to "be in writing and signed by both parties." It "is enforceable without consideration," meaning neither partner has to give the other anything in exchange for it to be valid.

When it takes effect. "A premarital agreement becomes effective upon marriage" (Family Code section 1613). If the wedding does not happen, the agreement does not take effect.

Execution in practice. Partners commonly sign with their attorneys present, and many agreements are notarized. Section 1611 does not require notarization, but it can help confirm signatures if questions arise later. Any separate waiver of counsel and the unrepresented party's declaration under section 1615(c)(3) are signed at or before this point.

After signing. Each partner keeps a signed copy. The agreement is not filed with any court. After the wedding, it can be changed or revoked only by a written agreement signed by both spouses (Family Code section 1614).

If it is ever tested. If the marriage later ends in dissolution, either spouse may present the agreement to the Superior Court of California, County of San Diego, for example at the Central Courthouse, 1100 Union Street, San Diego, CA 92101, or at the regional center for the division the court's ZIP Code List assigns. A judge then applies section 1615 to decide enforceability. Section 1617 tolls (pauses) statutes of limitations on claims under the agreement during the marriage, though defenses such as laches and estoppel remain available.

What Makes a California Prenup Unenforceable

Couples who have just finished a careful process sometimes worry the agreement could still fall apart. The law names a short list of ways that can happen, and each one maps back to a step above. Seen that way, the list is less a set of traps than a checklist of what the process is built to cover.

The agreement was not signed voluntarily. This is the section 1615(a)(1) ground covered in Step 2. In practice, pressure, haste or presenting the agreement right before the wedding are the facts that tend to support it, which is why Steps 2 through 4 are paced the way they are.

The terms were unfair and the disclosure fell short. This ground needs two things together: the agreement was unconscionable when signed, and the disclosure gaps described in Step 1 all applied before signing (section 1615(a)(2)). In everyday terms, it usually comes up when significant assets or debts were left off the schedules, even though both partners signed.

A judge decides fairness. Because unconscionability is a question of law (section 1615(b)), the attached disclosure schedules and drafts often become the record a judge reads.

The voluntariness checklist was not met. The court treats an agreement as involuntary unless it finds, in writing or on the record, that every condition was satisfied (section 1615(c)). Put plainly, those conditions are: the partner had a lawyer or signed a separate waiver after a timely advisement; the partner had seven days with the final agreement; an unrepresented partner received the written explanation; no one was under duress, fraud, undue influence or incapacity; and any other factors the court considers relevant. Missing one of these puts voluntariness in doubt.

A term undercuts child support. A provision that adversely affects a child's right to support does not hold (section 1612(b)).

Typical Timeline: How Long the Prenup Process Takes

The statutory floor. The two seven-day periods from Steps 3 and 4 can overlap, for example when the advisement and the final agreement are delivered on the same day, but neither can be shortened below seven days.

The practical reality. Gathering financial records, exchanging disclosure, drafting, negotiating and attorney review usually stretch the process to several weeks, and longer when the finances are complex.

Starting early. Beginning well before the wedding gives room for changes without crowding the seven-day periods, and it avoids the appearance of last-minute pressure that can support a voluntariness challenge.

San Diego County context. The timeline depends on the two attorneys' schedules and the couple's own pace. The Superior Court of California, County of San Diego plays no part unless the agreement is contested in a later proceeding.

When the Process Gets Complicated

The steps stay the same in harder cases, but each one takes more work. A few situations tend to lengthen things.

A business interest

Disclosing a business usually means more than naming it, and the terms about how its income and growth during marriage will be characterized often draw the most negotiation.

Real property and significant separate property

A home owned before marriage, investment property, or substantial accounts each raise their own characterization questions, and the disclosure schedules grow accordingly.

Disagreement over spousal support

Because of the counsel and fairness conditions in section 1612(c), spousal support terms are often drafted and revised with particular care.

A second marriage

Children from a prior relationship, existing estate plans and life insurance often bring the death-related provisions of section 1612(a) into focus.