Marital Agreements
Postnuptial Agreements in Santa Monica Explained
The agreement couples sign after the wedding, and when it holds up
Most people have heard of a prenup. Far fewer know its sibling: the postnuptial agreement, a contract spouses sign after they are already married to define what happens with property, debts, and support if the marriage ends. In Santa Monica, these agreements show up in predictable situations. One spouse launches a company. An inheritance arrives. A couple reconciles after a rough patch and wants financial terms settled before trying again. Whatever the trigger, the question is always the same: will this piece of paper actually hold up if the marriage ends?
Why Married Couples Sign Them
The motivations fall into a few familiar patterns, and understanding yours matters because it shapes what the agreement should say.
A Business Needs Protection
A spouse starting a company or taking on investors often needs certainty that a divorce will not put ownership in play. A postnup can classify the business as separate property and define how growth during the marriage gets treated, which reassures partners and lenders as much as spouses.
Money Arrived or Roles Changed
An inheritance, a career sacrifice, or a decision for one spouse to stay home with children all shift the financial balance of a marriage. Couples use postnups to acknowledge that shift in writing: keeping inherited assets separate, or guaranteeing support terms for the spouse who stepped back from earning.
The Marriage Is Being Rebuilt
After infidelity or a near separation, some couples want the financial ground rules settled as a condition of staying together. The agreement removes the money anxiety from the reconciliation, letting the couple work on the relationship without one spouse worrying they are financially exposed if it fails anyway.
What Makes a Postnup Enforceable in California
California treats agreements between spouses more strictly than prenups, and for a logical reason. Spouses owe each other fiduciary duties under Family Code section 2100, which means complete honesty about finances and no taking advantage. A postnup signed without full financial disclosure invites a court to throw it out later. The enforceability rules in Family Code sections 1500 through 1620 require the agreement to be in writing and signed voluntarily, and section 1615 adds teeth: the spouse challenging an agreement can defeat it by showing they did not sign voluntarily, or that the agreement was unconscionable and they were never given fair disclosure of the other side’s finances. Independent lawyers for both spouses are the single strongest signal that a postnup will survive scrutiny.
Enforceability Checklist Before Anyone Signs
Full financial disclosure from both spouses, exchanged in writing before signing
Separate attorneys for each spouse, or a knowing written waiver
No pressure window so the agreement never looks coerced by timing or circumstance
Terms that are fair on their face because lopsided deals invite unconscionability challenges
Nothing about the kids since custody and child support cannot be locked in by private contract
What a Postnup Cannot Do
The limits matter as much as the powers. No agreement between spouses can predetermine child custody or waive child support, because those rights belong to the children and get decided by their best interest at the time. Spousal support waivers are possible but face close judicial review, especially if enforcement would leave one spouse in serious hardship. And a postnup signed on the eve of a known divorce filing, or presented as a sign or I leave ultimatum, starts its life with a voluntariness problem. The strongest postnups are the ones signed calmly, early, and with both sides fully informed.
A well built postnup is not a plan for divorce. It is a way to take financial uncertainty off the table so the marriage runs on clearer terms. The drafting principles overlap heavily with the ones in our page on prenuptial agreements in Santa Monica, and the property questions these agreements settle connect directly to how property gets divided in a Santa Monica divorce when no agreement exists. If your finances changed since the wedding, the conversation is worth having now, while both of you are still on the same side of the table.
Put the Agreement on Paper While Things Are Good
We draft postnuptial agreements built to survive the day they are actually needed.
Contact Hayat Family Law
Santa Monica Office
100 Wilshire Boulevard, Suite 700 D
Santa Monica, CA 90401
Phone: 310 917 1044
Sherman Oaks Office
15303 Ventura Blvd, 9th Floor
Sherman Oaks, CA 91403
Phone: 818 380 3039
The information on this website is for general information purposes only. Nothing on this site should be taken as legal advice for any individual case or situation. This information is not intended to create, and receipt or viewing does not constitute, an attorney client relationship.
