When to Start a Prenup Before the Wedding

What California Law Requires Before a Prenup Is Signed

Family Code section 1615 sets out the timing rules for a premarital agreement. That is the legal name for a prenup: under Family Code section 1610, it is "an agreement between prospective spouses made in contemplation of marriage and to be effective upon marriage." Under section 1613, it takes effect on the wedding day, not on the day it is signed.

Section 1615 contains two distinct seven-day requirements:

• The advisement clock, under section 1615(c)(1): the advice to seek independent legal counsel must be given at least seven calendar days before the final agreement is signed.
• The final-agreement clock, under section 1615(c)(2)(B): for agreements signed on or after January 1, 2020, the party must have had at least seven calendar days between first being presented with the final agreement and signing it, whether or not that party has a lawyer.

These are two separate clocks, not one. They can run at the same time, but each must be satisfied on its own. A couple who meets one and misses the other has not met the statute.

These rules come from California law, so they apply the same way to every couple whose agreement would be enforced in a California court. For a couple living in San Diego County, any later divorce case would be filed in the Superior Court of California, County of San Diego, and that court would read the agreement against section 1615.

The Advisement Requirement: Seven Days Before Signing

The first clock is set out in a single sentence of section 1615(c)(1):

"The advisement to seek independent legal counsel shall be made at least seven calendar days before the final agreement is signed."

An advisement here means telling the party that they are being advised to get their own lawyer. Independent legal counsel means a lawyer who represents that party alone, not the other partner and not both of them. The statute requires that the advice be given and that it be given in time. It does not spell out the exact words.

The seven days run from the advisement, not from the day the party hires a lawyer. Someone advised on the first of the month who does not call a lawyer until the fifth is still measured from the first. That sounds like a technicality, but it shapes the calendar: if the advice comes late, there is no way to make up the lost days except by moving the signing date.

The requirement applies whether or not the party ends up using counsel. Section 1615(c)(1) allows a party to go without a lawyer only if, after being advised to seek one, they "expressly waived, in a separate writing, representation by independent legal counsel." So a party who chooses not to hire a lawyer still has to receive the advisement on time, and also has to sign a separate written waiver.

For an unrepresented party, section 1615(c)(3) adds more. That party must be fully informed of the terms and basic effect of the agreement and the rights being given up, in a language they are proficient in. The explanation must be put in writing and delivered before signing, and the party must sign a document confirming they received it and naming who provided it. Each of those steps takes time.

The Final-Agreement Requirement: Seven Days to Review

The second clock is in section 1615(c)(2)(B). For an agreement signed on or after January 1, 2020, the party against whom enforcement is sought must have:

"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."

The key words are "final agreement." This means the version the party is actually asked to sign, not an early draft or a term sheet passed around during negotiation. If the terms change, the clock is tied to the version that is finally signed. The statute does carve out "nonsubstantive amendments that do not change the terms of the agreement," such as fixing a typo, so those minor corrections generally do not restart the seven days.

The January 1, 2020 date matters. Agreements signed on or after that date follow the rule quoted above. For agreements signed between January 1, 2002 and January 1, 2020, section 1615(c)(2)(A) used a slightly different test, counting the seven days from when the party was first presented with the final agreement and advised to seek independent counsel. A couple signing today is governed by the newer version.

The phrase "regardless of whether the party is represented by legal counsel" is what sets this clock apart. Having a lawyer does not shorten it. Unlike the right to counsel, which a party may waive in a separate writing, the statute offers no waiver for this review period.

Put the two clocks side by side and the difference is clear. The advisement clock is about the chance to get advice. The final-agreement clock is about the chance to read and consider the exact document being signed. Both must be met independently.

Why Timing Affects Enforceability

Section 1615 is the statute that decides when a premarital agreement can be set aside. Under section 1615(a), an agreement is not enforceable if the party challenging it proves they did not sign it voluntarily, or that it was unconscionable (so one-sided as to be grossly unfair) when signed and that, before signing, they did not receive a fair, reasonable and full disclosure of the other party's property or financial obligations, did not waive further disclosure in writing, and did not have, or reasonably could not have had, adequate knowledge of them.

The timing rules feed directly into the voluntariness question. Section 1615(c) says an agreement "shall be deemed" not signed voluntarily unless the court finds, in writing or on the record, that the listed conditions were met. Those conditions include the advisement clock, the final-agreement clock, the steps for an unrepresented party, and the absence of "duress, fraud, or undue influence" or lack of capacity. The list ends with "any other factors the court deems relevant," so the court looks at the whole picture, and the seven-day rules are part of that picture rather than the whole of it.

In practice, this means a party who later challenges the agreement can point to a missed clock as a reason it was not voluntary. An agreement signed a few days before the ceremony, or signed without a timely advisement, may face that kind of challenge. Whether a particular challenge succeeds depends on the facts, and no outcome is assured either way.

For a couple living in San Diego County, that question would be decided in the Superior Court of California, County of San Diego. The court files family cases in four divisions by ZIP code, using the court's ZIP Code List (ADM-254): the Central Division at the Central Courthouse, 1100 Union Street, San Diego, CA 92101; the North County Division at the North County Regional Center, 325 South Melrose Drive, Vista, CA 92081; the East County Division at the East County Regional Center, 250 East Main Street, El Cajon, CA 92020; and the South County Division at the South County Regional Center, 500 3rd Avenue, Chula Vista, CA 91910. Each division applies the same section 1615.

Timing can also affect spousal support terms. Under Family Code section 1612(c), a spousal support provision, including a waiver, is not enforceable if the party it is enforced against did not have independent counsel when signing. A couple who wants that kind of term has to leave room in the schedule for both partners to retain lawyers.

How Far Ahead to Start: Building in Enough Time

The seven-day periods are floors, not recommended timelines. They measure only the last stretch before signing. Everything that comes before them, from the first conversation to the final draft, takes time the statute does not count.

Financial disclosure is usually the first step. Section 1615(a)(2) ties enforceability, in part, to whether each party received "a fair, reasonable, and full disclosure of the property or financial obligations of the other party." Gathering account statements, business records, debts and retirement information can take weeks, especially when one partner owns a business or expects an inheritance.

Separate lawyers mean separate calendars. Each partner retaining independent counsel requires finding a lawyer, scheduling a meeting, and giving that lawyer time to review the draft and the disclosure. Questions and requested changes then move back and forth. Each round of substantive changes produces a new final agreement, and the final-agreement clock starts again from that version.

That is why starting several weeks, and often several months, before the wedding is common in practice. A couple working through drafting, disclosure and negotiation with time to spare can let both seven-day windows run without the signing landing in the final days before the ceremony. A rushed signing does not by itself make an agreement invalid, but it narrows the room to meet the statute cleanly.

For couples who realize the wedding is close and the agreement is not ready, the date of marriage is not the only option in California law. Spouses can also make a marital property agreement after the wedding, which is a postnuptial agreement. Section 1615 is written for premarital agreements, so a postnup follows different rules.

What a Premarital Agreement Can and Cannot Cover

California's version of the Uniform Premarital Agreement Act, Family Code sections 1600 through 1617, sets the scope of a prenup. Section 1500 confirms that the property rights spouses would otherwise have under statute "may be altered by a premarital agreement or other marital property agreement."

Section 1612(a) lists what the parties may contract about, including:

• each party's rights and obligations in property of either or both of them, "whenever and wherever acquired or located";
• the right to buy, sell, use, transfer, mortgage or otherwise manage and control property;
• what happens to property on separation, divorce, death, or another event;
• making a will, trust or other arrangement to carry out the agreement;
• ownership of and disposition of a life insurance death benefit;
• which state's law governs how the agreement is read; and
• any other matter, including personal rights and obligations, that does not violate public policy or a criminal statute.

Spousal support can be addressed, subject to the independent-counsel rule in section 1612(c) and the rule that a support provision is not enforceable if it is unconscionable at the time of enforcement.

There are firm limits. Section 1612(b) states: "The right of a child to support may not be adversely affected by a premarital agreement." Knowing the scope early helps with timing, because a prenup covering a business, a home, or a second marriage generally involves more disclosure and more negotiation than a simple one. This section describes what the law allows; which terms belong in a given agreement depends on the couple.

Notarization and a California Prenup

No. California does not list notarization as a requirement for a prenup to be valid. Family Code section 1611 states the formal requirement in full: "A premarital agreement shall be in writing and signed by both parties. It is enforceable without consideration." (Consideration means something of value exchanged for the promise; a prenup does not need it.)

Some couples still choose to have signatures notarized. A notary's acknowledgment can help show later who signed and when, which can be useful evidence if timing is ever questioned. It is a choice, not a statutory requirement.

The writing-and-signature rule is separate from the timing rules. Section 1611 asks whether the agreement was put in writing and signed. Section 1615 asks whether it was signed voluntarily, including whether both seven-day clocks were met. A properly signed, even notarized, agreement can still face a challenge under section 1615 if the clocks were missed.