50-state evidence matrix

Amending or revoking a prenup

A source map for the formalities used to amend or revoke a premarital agreement.

47 states have 51 separately catalogued authority records for this topic. 3 states show a visible coverage gap.

50states shown

47with evidence records

51matching authorities

3visible gaps

Manual editorial field guide

A prenup’s current meaning may depend on documents created years after the wedding. Amendment review must preserve the original baseline, authenticate every claimed change, and distinguish a legally operative modification from informal conduct or an abandoned draft.

438 manually authored words · evidence tables continue below

Construct a version history

Start with the final premarital agreement, then list every document that purports to amend, revoke, ratify, restate, waive, or interpret it. Assign each item a date, signers, form, affected clauses, and source. Preserve unsigned drafts and emails, but label them accurately. They may explain intent or negotiation without themselves satisfying a required form.

A redline is especially useful. It shows whether a short amendment changed only one clause or created ripple effects through definitions, schedules, and cross-references. If multiple documents conflict, do not silently choose the newest-looking file; identify the conflict and the evidence needed to resolve it.

Separate changed behavior from changed text

Couples frequently manage property differently from the agreement, exchange informal promises, or stop following a procedure. Those facts may matter, but they should not automatically be described as an amendment or revocation. The relevant state source may prescribe a signed writing or another form, and other doctrines may require separate research.

The same caution applies to estate plans and deeds. A later will or transfer can perform one obligation, conflict with another, or create a separate legal issue. It is evidence of a transaction, not necessarily a wholesale rewrite of the prenup.

Identify the operative text for each period

A current review may need more than one answer. Property acquired before an amendment may be governed by different language from property acquired after it. A revocation may have its own effective date. A restatement may preserve earlier disclosures or replace them. Build a period-by-period map instead of treating the latest PDF as timeless.

The final report should show the document chain, unresolved authenticity or formality issues, and clauses affected at each stage. That is a reliable foundation for legal review and far more useful than saying merely that the agreement ‘was amended.’

Questions for the document

What to ask before drawing a conclusion

What document is claimed to change the agreement, and which clauses does it identify?
Does the change satisfy the form catalogued for the relevant state and time?
Are there unsigned drafts, emails, later conduct, or estate documents that are being mistaken for an operative amendment?
What text governed each asset, payment, or transaction during each relevant period?

Outside evidence

What the agreement cannot prove alone

Original agreement plus every amendment, revocation, ratification, waiver, and restatement
Native files, redlines, email transmission records, signing logs, and acknowledgment pages
Later deeds, trusts, wills, beneficiary forms, account changes, and transaction records
Chronology matching each claimed change to marriage, relocation, acquisition, and disposition events

State	Coverage	Citations and scoped summaries	Next step
Alabama (AL) al-2026-07-22.3	1 source	Hollar v. Hollar, CL-2022-1230 (Ala. Civ. App. Nov. 9, 2023) Hollar applies the Barnhill standard to both prenuptial and postnuptial agreements; a claimed later change must be classified and reviewed as an amendment, postnuptial bargain, or other interspousal contract under applicable formalities and confidential-relation rules.	Open AL checklist →
Alaska (AK) ak-2026-07-23.3	2 sources	Alaska Stat. § 34.77.090(e) A community property agreement may be amended or revoked only as the agreement itself permits or by a later community property agreement; the statute also contains a qualified surviving-spouse rule for nonprobate dispositions. Compton v. Compton, 902 P.2d 805 (Alaska 1995) Alaska has no general UPAA amendment section for ordinary prenups; Compton distinguishes asset-specific transmutation evidence from formal modification or waiver of the agreement.	Open AK checklist →
Arizona (AZ) az-2026-07-20.3	1 source	A.R.S. § 25-204 After marriage, an Arizona premarital agreement may be amended or revoked only by a written agreement signed by the parties.	Open AZ checklist →
Arkansas (AR) ar-2026-07-22.3	2 sources	Ark. Code Ann. § 9-11-405 After marriage, amendment or revocation requires a written agreement signed by both parties. Rogers v. Rogers, No. CA01-790 (Ark. Ct. App. June 19, 2002) (not designated for publication) Rogers concluded that partial property stipulations did not themselves formally revoke the entire agreement.	Open AR checklist →
California (CA) ca-2026-07-18.3	1 source	Cal. Fam. Code § 1614 After marriage, amendment or revocation requires a written agreement signed by the parties.	Open CA checklist →
Colorado (CO) co-2026-07-22.3	No separate record	The package does not encode this as a standalone topic. No legal absence is inferred.	Open CO checklist →
Connecticut (CT) ct-2026-07-21.3	1 source	Conn. Gen. Stat. § 46b-36f After marriage, a Connecticut premarital agreement may be amended or revoked only by a written agreement signed by the parties.	Open CT checklist →
Delaware (DE) de-2026-07-21.3	1 source	13 Del. C. § 325 After marriage, a Delaware premarital agreement may be amended or revoked only by a written agreement signed by the parties.	Open DE checklist →
Florida (FL) fl-2026-07-18.3	1 source	Fla. Stat. § 61.079(6) After marriage, amendment, revocation, or abandonment requires a written agreement signed by the parties.	Open FL checklist →
Georgia (GA) ga-2026-07-22.3	1 source	O.C.G.A. §§ 19-3-60, 19-3-64 Georgia's antenuptial article does not supply a UPAA-style amendment-and-revocation section; a claimed later change must be classified as an amendment, postnuptial settlement, conveyance, or separate contract under then-applicable law.	Open GA checklist →
Hawaii (HI) hi-2026-07-22.3	1 source	Haw. Rev. Stat. § 572D-5 After marriage, amendment or revocation requires a written agreement signed by the parties and is enforceable without consideration.	Open HI checklist →
Idaho (ID) id-2026-07-22.3	1 source	Idaho Code § 32-924 After marriage, amendment or revocation requires a written agreement signed by the parties and is enforceable without consideration.	Open ID checklist →
Illinois (IL) il-2026-07-18.3	1 source	750 ILCS 10/6 After marriage, amendment or revocation requires a written agreement signed by the parties.	Open IL checklist →
Indiana (IN) in-2026-07-22.3	1 source	Ind. Code § 31-11-3-7 After marriage, amendment or revocation requires a written agreement signed by both parties and is enforceable without consideration.	Open IN checklist →
Iowa (IA) ia-2026-07-22.3	1 source	Iowa Code § 596.7 (2026) After marriage, an Iowa premarital agreement may be revoked by a writing signed by both spouses, or without the other spouse's consent upon proof of a listed voluntariness, unconscionability, or disclosure ground.	Open IA checklist →
Kansas (KS) ks-2026-07-22.3	1 source	K.S.A. § 23-2406 After marriage, amendment or revocation requires a written agreement signed by both parties and is enforceable without consideration.	Open KS checklist →
Kentucky (KY) ky-2026-07-23.3	1 source	Gentry v. Gentry, 798 S.W.2d 928 (Ky. 1990); Ky. Rev. Stat. §§ 371.010, 403.180 Kentucky has no UPAA-style general amendment-and-revocation section for prenups; a claimed later change must be classified under the agreement, statute of frauds, contract law, or the distinct separation-agreement statute.	Open KY checklist →
Louisiana (LA) la-2026-07-23.3	1 source	La. Civ. Code art. 2329 A during-marriage agreement that modifies or terminates a matrimonial regime generally requires a joint petition and court findings on best interests and understanding of the governing principles and rules.	Open LA checklist →
Maine (ME) me-2026-07-22.3	1 source	19-A M.R.S. § 607 (2025) After marriage, amendment or revocation requires a written agreement signed by both parties and is enforceable without consideration.	Open ME checklist →
Maryland (MD) md-2026-07-23.3	1 source	Cannon v. Cannon, 384 Md. 537, 865 A.2d 563 (2005); Md. Code, Fam. Law § 8-101 Maryland has no UPAA-style general amendment-and-revocation section; a claimed later change must be proved under the agreement's text, objective contract law, and any remedy- or transaction-specific statute.	Open MD checklist →
Massachusetts (MA) ma-2026-07-23.3	1 source	DeMatteo v. DeMatteo, 436 Mass. 18 (2002); Mass. Gen. Laws ch. 209, §§ 25–26 Massachusetts has no UPAA-style general amendment section; a claimed change must satisfy the agreement, contract doctrine, and transaction-specific writing, deed, probate, or recording rules.	Open MA checklist →
Michigan (MI) mi-2026-07-23.3	2 sources	Reed v. Reed, 265 Mich. App. 131 (2005); MCL 566.132 Michigan has no enacted UPAA-style amendment section; a claimed change must satisfy the agreement, writing rules, contract doctrine, and postnuptial or transaction-specific law. Skaates v. Kayser, 333 Mich. App. 61, 963 N.W.2d 31 (2020) Skaates explains that a postnuptial agreement is not invalid per se when it promotes marriage rather than encouraging divorce and evaluates separate counsel and negotiation.	Open MI checklist →
Minnesota (MN) mn-2026-07-23.3	1 source	Minn. Stat. § 519.11, subd. 2a After marriage, an antenuptial agreement may be amended or revoked only by a valid postnuptial agreement complying with section 519.11 and other Minnesota law.	Open MN checklist →
Mississippi (MS) ms-2026-07-23.3	1 source	Hatton v. Hatton, 323 So. 3d 557 (Miss. Ct. App. 2021); Miss. Code § 15-3-1 Mississippi has no enacted uniform-act amendment section; a claimed change must satisfy the agreement, contract law, the statute of frauds, and transaction-specific requirements.	Open MS checklist →
Missouri (MO) mo-2026-07-23.3	1 source	Mo. Rev. Stat. §§ 432.010, 451.220; Miles v. Werle, 977 S.W.2d 297 (Mo. Ct. App. 1998) Missouri has no enacted uniform-act amendment section; a claimed later change must satisfy the agreement, contract law, and every applicable writing or acknowledgment rule.	Open MO checklist →
Montana (MT) mt-2026-07-22.3	1 source	Mont. Code Ann. § 40-2-607 After marriage, amendment or revocation requires a written agreement signed by both parties and is enforceable without consideration.	Open MT checklist →
Nebraska (NE) ne-2026-07-22.3	1 source	Neb. Rev. Stat. §§ 42-1001–1011 Nebraska's codified 11-section Uniform Premarital Agreement Act contains no standalone amendment-or-revocation section, so the product does not infer the omitted model-act rule.	Open NE checklist →
Nevada (NV) nv-2026-07-22.3	1 source	NRS 123A.070 After marriage, amendment or revocation requires a written agreement signed by the parties and is enforceable without consideration.	Open NV checklist →
New Hampshire (NH) nh-2026-07-23.3	1 source	N.H. Rev. Stat. Ann. § 460:2-a; In the Matter of Serodio & Perkins, 172 N.H. 340 (2014) New Hampshire has no enacted uniform-act amendment section; a claimed modification or revocation must be proved under the agreement, contract law, and applicable writing rules.	Open NH checklist →
New Jersey (NJ) nj-2026-07-22.3	1 source	N.J. Stat. § 37:2-37 After marriage or civil union, amendment or revocation requires a written agreement signed by both parties and is enforceable without consideration.	Open NJ checklist →
New Mexico (NM) nm-2026-07-22.3	1 source	N.M. Stat. § 40-3A-6 After marriage, amendment or revocation may occur through a written agreement signed and acknowledged by both parties or through a consistent and mutual course of conduct evidencing amendment or revocation; no consideration is required.	Open NM checklist →
New York (NY) ny-2026-07-18.3	No separate record	The package does not encode this as a standalone topic. No legal absence is inferred.	Open NY checklist →
North Carolina (NC) nc-2026-07-22.3	2 sources	N.C. Gen. Stat. § 52B-6 After marriage, amendment or revocation requires a written agreement signed by the parties and is enforceable without consideration. Huntley v. Huntley, 140 N.C. App. 749, 538 S.E.2d 239 (2000) Huntley held section 52B-6 unambiguous: post-marriage conduct and discussions could not rescind a premarital agreement without the required signed writing, so the agreement remained valid and barred equitable distribution under its terms.	Open NC checklist →
North Dakota (ND) nd-2026-07-22.3	1 source	N.D.C.C. § 14-03.2-01(1)–(2), (5) North Dakota treats modification or revocation as an amendment and classifies an amendment signed before marriage with premarital agreements and one signed after marriage with marital agreements.	Open ND checklist →
Ohio (OH) oh-2026-07-23.3	1 source	Ohio Rev. Code § 3103.06(A)(2), (B) Spouses may modify or terminate an antenuptial or postnuptial agreement if the new agreement complies with section 3103.061.	Open OH checklist →
Oklahoma (OK) ok-2026-07-23.3	1 source	Hendrick v. Hendrick, 976 P.2d 1071 (Okla. Civ. App. 1999) Hendrick holds that a postmarital instrument labeled an amendment is postnuptial in substance and is not the valid written antenuptial contract section 121 recognizes for contingent divorce or death rights.	Open OK checklist →
Oregon (OR) or-2026-07-22.3	1 source	ORS 108.720 After marriage, amendment or revocation requires a written agreement signed by the parties and is enforceable without consideration.	Open OR checklist →
Pennsylvania (PA) pa-2026-07-22.3	No separate record	The package does not encode this as a standalone topic. No legal absence is inferred.	Open PA checklist →
Rhode Island (RI) ri-2026-07-22.3	1 source	R.I. Gen. Laws § 15-17-5 After marriage, amendment or revocation requires a written agreement signed by both parties and is enforceable without consideration.	Open RI checklist →
South Carolina (SC) sc-2026-07-23.3	1 source	S.C. Code Ann. § 20-3-630(A)(4); Hardee v. Hardee, 355 S.C. 382, 585 S.E.2d 501 (2003) South Carolina has no uniform-act amendment section; any change requires proof under the instrument and current contract and marital-property law.	Open SC checklist →
South Dakota (SD) sd-2026-07-22.3	1 source	S.D. Codified Laws § 25-2-20 After marriage, amendment or revocation requires a written agreement signed by the parties and is enforceable without consideration.	Open SD checklist →
Tennessee (TN) tn-2026-07-23.3	1 source	Tenn. Code Ann. §§ 29-2-101, 36-3-501 Tennessee has no uniform-act amendment section; a claimed change invokes the instrument, statute of frauds, contract law, and postnuptial doctrine.	Open TN checklist →
Texas (TX) tx-2026-07-18.3	1 source	Tex. Fam. Code § 4.005 After marriage, amendment or revocation requires a written agreement signed by the parties.	Open TX checklist →
Utah (UT) ut-2026-07-22.3	1 source	Utah Code § 81-3-204(2) After marriage, amendment or revocation requires a written agreement signed by both parties and is enforceable without consideration.	Open UT checklist →
Vermont (VT) vt-2026-07-23.3	1 source	12 V.S.A. § 181; Lacroix v. Rysz, 2025 VT 16 Vermont has no uniform-act amendment section; an alleged change invokes the instrument, writing rule, and current contract and marital law.	Open VT checklist →
Virginia (VA) va-2026-07-21.3	1 source	Va. Code § 20-153 After marriage, a Virginia premarital agreement may be amended or revoked only by a written agreement signed by the parties.	Open VA checklist →
Washington (WA) wa-2026-07-23.3	1 source	RCW 26.16.120 A section .120 death agreement may be altered in the same manner and remains subject to creditor rights, fraud, and equitable cancellation.	Open WA checklist →
West Virginia (WV) wv-2026-07-23.5	1 source	W. Va. Code § 48-1A-501 After marriage, amendment or revocation requires a written agreement signed by both parties and needs no consideration.	Open WV checklist →
Wisconsin (WI) wi-2026-07-23.3	1 source	Wis. Stat. § 766.58(4) A marital-property agreement may be amended or revoked only by a later marital-property agreement.	Open WI checklist →
Wyoming (WY) wy-2026-07-23.3	1 source	Lund v. Lund, 849 P.2d 731, 739–41 (Wyo. 1993) An antenuptial agreement may be modified after marriage by further agreement if the governing formal requisites or the agreement's own requirements are satisfied.	Open WY checklist →

Matrix and list placement describes the records in PrenupsAI's current evidence packages. It does not rank legal strictness, predict enforceability, or mean that an unlisted state has no applicable rule. Open the cited sources to inspect the underlying authority.