Can You Sign a Prenup After Marriage? Fine Once, Not Repeatedly

No. After you marry, you cannot execute a prenuptial agreement. California Family Code section 1610 defines a premarital agreement as a contract between prospective spouses, made in contemplation of marriage and effective upon marriage. What you can sign is a postnuptial or marital agreement under the governing state's law. That later paper is not a prenup filed late. Spouses already owe each other fiduciary duties, so a court may apply different scrutiny. Enforceability turns on that state's statute, full financial disclosure, voluntariness, timing, and, in several states, separate counsel.

I still read a statute the way I used to read a Rotterdam customs form: caption first, effective date second, then the annex that binds the shipment. A prenup is valid once, before the marriage.

What is the right name for an agreement signed after marriage?

The right name is a postnuptial agreement, or a marital agreement under the Uniform Premarital and Marital Agreements Act. California Family Code section 1500 lets spouses alter statutory property rights by a premarital agreement or other marital property agreement. After the wedding, use the second phrase.

A prenup can be amended after marriage. That amendment is still not a prenup. California Family Code section 1614 and Minnesota Statutes section 519.11, subdivision 2a, both require a later written postnuptial instrument to amend or revoke a prenup.

The dominant wrong answer is calling a postnup a prenup signed late. On the wedding date, California Family Code section 721(b) already imposes a duty of the highest good faith and fair dealing. North Dakota Century Code section 14-03.2-06 states the version table: a premarital agreement is effective on marriage; a marital agreement is effective on signing by both parties.

Why does state law control a postnuptial agreement?

There is no federal marital-agreement code for ordinary property and support. The Uniform Law Commission's 2012 Uniform Premarital and Marital Agreements Act is a proposal until a legislature enacts it. The 2012 prefatory note recorded that the 1983 Uniform Premarital Agreement Act had been adopted by 26 jurisdictions. Colorado enacted the 2012 act in 2013 as House Bill 13-1204, effective July 1, 2014, now Colorado Revised Statutes sections 14-2-301 to 14-2-313. North Dakota enacted Century Code chapter 14-03.2, applying to agreements signed after July 31, 2013. I have not treated any other current state code as an enactment of that 2012 text.

California Family Code section 1612(a)(6) allows a premarital choice-of-law clause. North Dakota Century Code section 14-03.2-03 honors a designated jurisdiction only if it has a significant relationship to the agreement or a party and is not contrary to North Dakota public policy.

What financial disclosure belongs in the file before anyone drafts?

Disclosure is a dated packet, not a list of the large accounts you remember. Colorado Revised Statutes section 14-2-309(4)(a) requires a good-faith estimate of the other party's property, liabilities, and income; Colorado reserved the waiver option in subsection (4)(b). North Dakota Century Code section 14-03.2-08(4) uses the same packet and still allows an express waiver in a separate signed record. Minnesota Statutes section 519.11, subdivision 1b, forbids waiver.

In In re Marriage of Burkle (2006) 139 Cal.App.4th 712, Ronald W. Burkle and Janet E. Burkle married on March 23, 1974. Janet signed on November 5, 1997; Ronald signed on November 21, 1997. Schedules valued community property (Schedule A) and claimed separate property (Schedule C) as of June 6, 1997 at tax-effected fair market values of $60,028,267 and $86,755,898. The Court of Appeal recited that Janet would be awarded $30,014,134 as 50 percent of the total net value, adjusted for liabilities and tax consequences. The published opinion does not print a standalone mortgage total. The same agreement recited marital living expenses of between $400,000 and $500,000 per year, net of taxes. Put recent IRS Form 1040 returns next to that recital.

In In re Marriage of Facter (2013) 212 Cal.App.4th 967, a 1994 premarital agreement attached exhibits of Jeffrey Facter's separate property, then totaling approximately $3 million, and earnings of between $475,000 and $700,000 in each of the prior five years. California Family Code section 1615(a)(2) tests fair, reasonable, and full disclosure of property or financial obligations.

How do voluntariness and timing get tested after the wedding?

Timing is evidence. It is not a national waiting period. California's seven-calendar-day rule in Family Code section 1615(c) belongs to premarital agreements. For an agreement executed on or after January 1, 2020, the party against whom enforcement is sought must have had not less than seven calendar days between first presentation of the final agreement and signing, even if that party has a lawyer. That clock does not migrate onto every postnup or every state.

Minnesota Statutes section 519.11, subdivision 1b(b)(5), requires an antenuptial agreement no less than seven days before the marriage. Subdivision 1d(a)(1) then says that clause does not apply to a postnuptial agreement. After the wedding, Minnesota instead presumes a postnup unenforceable if either party files for legal separation or dissolution within two years of execution, unless the spouse seeking enforcement establishes that the agreement is fair and equitable. Colorado Revised Statutes section 14-2-309(2) asks only whether the party had a reasonable time to decide on a lawyer, locate one, and consider the advice.

In In re Marriage of Friedman (2002) 100 Cal.App.4th 65, Jill and Keith Friedman married on January 27, 1991. Counsel mailed a draft on February 7, 1991. The final draft was signed on March 20, 1991, forty-one days after the draft left the lawyer's office and fifty-two days after the marriage. The Court of Appeal enforced that postnup. In Burkle, the agreement was drafted in August 1997 and signed in November 1997.

Do both spouses need separate lawyers?

Joint representation is not a universal solution. American Bar Association Model Rule of Professional Conduct 1.7 bars a concurrent conflict, including representation directly adverse to another client. Informed consent confirmed in writing can cure some conflicts. The Friedman engagement letter, quoted by the Court of Appeal, said the firm could only represent Keith.

Minnesota Statutes section 519.11, subdivision 1d(c), says a postnuptial agreement is valid only if at execution each spouse is represented by separate legal counsel. Colorado Revised Statutes section 14-2-309(2) treats access as the ability to retain a lawyer, or the other party's agreement to pay reasonable independent-representation fees. California Family Code section 1612(c) is a prenup rule with a postnup moral: a spousal-support waiver is not enforceable if the party against whom enforcement is sought lacked independent counsel at signing, or if the provision is unconscionable at enforcement.

The fee belongs in a written engagement agreement. California Business and Professions Code section 6148 requires a written contract when total expense to a client, including attorney fees, is reasonably foreseeable to exceed $1,000. That $1,000 figure is a writing threshold, not a national postnup price. In Burkle, Gursey, Schneider Co. billed $4,552.50 through July 31, 1997 for a cash-flow report.

Which terms can a court refuse to enforce?

A signed financial promise is not self-executing. California Family Code section 1612(b) says a child's right to support may not be adversely affected by a premarital agreement. North Dakota Century Code section 14-03.2-09 makes a term unenforceable to the extent it adversely affects a child's right to support, and says a term that defines parental rights and responsibilities is not binding on the court.

Unconscionability cuts support waivers. Facter kept the property clauses and refused to enforce the spousal-support waiver as unconscionable at enforcement, after Jeffrey's self-reported separate property had grown in excess of $10 million and his earnings to $1 million per year, while Nancy had no income. Colorado Revised Statutes section 14-2-309(5) lets a court refuse spousal-maintenance and attorney-fee terms that are unconscionable at enforcement. A California transmutation also has to satisfy Family Code section 852(a): a writing with an express declaration joined in, consented to, or accepted by the spouse whose interest is adversely affected.

How does a postnup differ from an estate plan?

A postnuptial agreement can say what should happen to property at death. It does not retitle a retirement account, rewrite a will, or change a life-insurance beneficiary form. California Family Code section 1612(a)(4) and (a)(5) let a premarital agreement mention a will, trust, or life-insurance death benefit. Those clauses still need the downstream documents. In Friedman, counsel referred the couple to another lawyer for simple wills and durable powers of attorney.

Beneficiary forms are their own statute. In Egelhoff v. Egelhoff, 532 U.S. 141 (2001), David A. Egelhoff married Donna Rae Egelhoff on November 4, 1988, named her on a Boeing ERISA life insurance policy and pension plan, and divorced her on April 22, 1994. He died intestate on June 23, 1994. The $46,000 life insurance proceeds were paid to Donna as the named beneficiary. The Supreme Court held a Washington revocation-on-divorce statute was preempted. Plan documents controlled.

| Instrument | When signed | What it can do | What it cannot replace | | --- | --- | --- | --- | | Prenuptial agreement | Before marriage | Separate and marital property; some support terms; effective on marriage | A later postnup, a will, or a plan beneficiary form | | Postnuptial or marital agreement | After marriage | Property and some support rights under state marital-agreement law | Child support, custody decrees, or ERISA beneficiary forms | | Estate plan (will, trust, beneficiary form) | Whenever the signer has capacity | Probate and nonprobate transfers through the document the institution holds | A marital-property characterization a family court will later enforce |

How should spouses begin a postnuptial agreement without wasting the signing?

Start with the caption, then the packet, then the lawyers.

1. Identify the governing state statute and caption the draft as a postnuptial or marital agreement. If you already have a prenup, treat the new paper as an amendment under the postnup rules.
2. Exchange dated schedules of property, liabilities, and income, with statements, appraisals, and recent Form 1040 returns.
3. Retain separate counsel. Put the fee in a written engagement agreement. Calendar the review interval, as the Friedman file recorded February 7 to March 20.
4. Cut child support, custody, and support waivers that would be unconscionable at enforcement. Use Family Code section 852 if a California transmutation is in play.
5. Sign after a real redline. Then update the will, the trust, and every beneficiary form.

FAQ

Is a postnuptial agreement as effective as a prenup?

It can be, if the state's statute, disclosure, and voluntariness tests are met. Minnesota Statutes section 519.11 requires separate counsel for a postnup and presumes unenforceability if a dissolution is filed within two years. California Family Code section 721 already imposes fiduciary duties a prenup never faced.

Which terms should be avoided in a postnup?

Avoid clauses that cut a child's support, dictate custody, or waive spousal support without independent counsel and a fairness check at enforcement. California Family Code section 1612(b) and North Dakota Century Code section 14-03.2-09 refuse child-support cuts. Unconscionable support waivers failed in In re Marriage of Facter.

Does a prenup provide complete protection?

No. A prenup does not replace a will, a trust, or an ERISA beneficiary form, and it cannot cut child support. In Egelhoff v. Egelhoff, 532 U.S. 141 (2001), $46,000 in life insurance followed the named beneficiary. After marriage, a new postnup and updated plan forms are separate jobs.

How long after marriage can spouses make a postnuptial agreement?

There is no national deadline. The Burkles signed in November 1997 after a March 23, 1974 marriage. Minnesota Statutes section 519.11 does not apply the seven-day-before-wedding rule to postnups, and it presumes unenforceability if a dissolution is filed within two years. California's seven-day prenup clock is not a nationwide postnup rule.

Can a prenup or postnup be made without separate lawyers?

Sometimes a prenup can; a postnup often cannot. Minnesota Statutes section 519.11, subdivision 1d(c), requires separate counsel for each spouse at execution of a postnup. Colorado Revised Statutes section 14-2-309 still demands access to independent representation. ABA Model Rule 1.7 treats dual representation as a concurrent conflict.

Which state's law will govern the agreement?

The law named in a valid choice-of-law clause, if that state has a significant relationship to the agreement or a party and the choice does not violate the forum's public policy. North Dakota Century Code section 14-03.2-03 states that test. Absent a working designation, courts apply the connected state.