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CT · Manually written guide

Prenup laws in Connecticut

Connecticut's Premarital Agreement Act supplies a statutory sequence for execution, permitted content, amendment, and enforcement, so the agreement and its signing record can be reviewed against the same chapter.Conn. Gen. Stat. § 46b-36cConn. Gen. Stat. § 46b-36d(a)–(b)Conn. Gen. Stat. § 46b-36g(a)(1)

The Connecticut package treats voluntariness and financial-process safeguards as enforcement questions distinct from the document's basic writing and signature requirements.Conn. Gen. Stat. § 46b-36cConn. Gen. Stat. § 46b-36g(a)(1)

Evidence tiersection verified
Package versionct-2026-07-21.3
Authorities12
Reviewed2026-07-21
Effective through2026-07-21
On this pageExecutionSubjects and limitsFinancial reviewExamplesQuestionsAuthorities

Formation and lifecycle

Execution requirements to investigate

formalities

Connecticut writing and signature requirements

A Connecticut premarital agreement must be in writing and signed by both parties and is enforceable without consideration.

Conn. Gen. Stat. § 46b-36c
effective date

Connecticut effect of marriage

A Connecticut premarital agreement becomes effective upon marriage unless the agreement provides otherwise.

Conn. Gen. Stat. § 46b-36e
amendment revocation

Connecticut amendment and revocation formalities

After marriage, a Connecticut premarital agreement may be amended or revoked only by a written agreement signed by the parties.

Conn. Gen. Stat. § 46b-36f

What the agreement addresses

Permitted subjects and legal limits

permitted subjects

Connecticut permitted agreement subjects

Connecticut lists property rights and management, disposition, spousal support, estate planning, insurance, retirement-plan rights, choice of law, and personal rights and obligations as agreement subjects, subject to public policy and criminal statutes.

Conn. Gen. Stat. § 46b-36d(a)–(b)
child support

Connecticut child-related limitations

A Connecticut premarital agreement may not adversely affect a child's right to support, and child care, custody, visitation, and other child-affecting provisions remain subject to judicial review and modification.

Conn. Gen. Stat. § 46b-36d(c)
limitations

Connecticut unconscionability timing

Connecticut identifies unconscionability when the agreement was executed or when enforcement is sought, and assigns that issue to the court as a matter of law.

Conn. Gen. Stat. § 46b-36g(a)(2), (c)
public assistance

Connecticut public-assistance support safeguard

A court may require support to the extent necessary to avoid public-assistance eligibility caused by a premarital support modification or elimination.

Conn. Gen. Stat. § 46b-36g(b)
void marriage

Connecticut void or voidable marriage rule

If the marriage is held void or voidable, an otherwise premarital agreement is enforceable only to the extent necessary to avoid an inequitable result.

Conn. Gen. Stat. § 46b-36h
limitations

Connecticut limitations and pre-1995 applicability

Connecticut tolls an applicable limitations period during marriage while preserving equitable defenses, and the act does not affect the validity of agreements made before October 1, 1995.

Conn. Gen. Stat. §§ 46b-36i–46b-36j

Process evidence

Financial disclosure, voluntariness, counsel, and timing

voluntariness

Connecticut voluntary-execution safeguard

A Connecticut premarital agreement or amendment is not enforceable if the resisting party proves that it was not executed voluntarily.

Conn. Gen. Stat. § 46b-36g(a)(1)
financial disclosure

Connecticut financial-disclosure safeguard

Before execution, Connecticut requires fair and reasonable disclosure of the amount, character, and value of the other party's property, financial obligations, and income for this enforcement safeguard.

Conn. Gen. Stat. § 46b-36g(a)(3)
independent counsel

Connecticut opportunity for independent counsel

Connecticut's enforcement statute asks whether the resisting party was afforded a reasonable opportunity to consult with independent counsel.

Conn. Gen. Stat. § 46b-36g(a)(4)

Hypotheticals, not outcomes

Practical examples

These examples show how document facts can intersect with the cited sources. They do not predict a court result.

Example 01

The final draft arrives late

A party sees material revisions shortly before the signing appointment. Connecticut's enforcement provision makes the surrounding execution facts a separate issue from whether the document was signed.Conn. Gen. Stat. § 46b-36cConn. Gen. Stat. § 46b-36g(a)(1)

Ask local counsel

How do Connecticut courts evaluate voluntariness when material terms changed near execution?

Example 02

The clause outside the property schedule

A draft includes personal obligations alongside financial terms. The Connecticut content section provides the starting point for deciding whether each subject is contractible or limited by public policy.Conn. Gen. Stat. § 46b-36d(a)–(b)

Ask local counsel

Which provisions fit the statutory content categories, and which require separate authority?

Common starting points

Connecticut prenup FAQs

Answers are deliberately scoped to the cited evidence package and should be checked against current law.

What basic form does Connecticut require?

The cited Connecticut provision supplies the writing and signature requirements for a premarital agreement.Conn. Gen. Stat. § 46b-36c

What subjects can the agreement address?

The Connecticut content provision identifies property-related subjects and statutory limits that counsel should map to each operative clause.Conn. Gen. Stat. § 46b-36d(a)–(b)

What evidence belongs in a Connecticut enforcement review?

The enforcement source directs attention to voluntary execution, disclosure or knowledge, and other state-specific safeguards reflected in the signing record.Conn. Gen. Stat. § 46b-36g(a)(1)

Prepare for independent advice

Questions for a Connecticut lawyer

Bring the agreement, every exhibit, prior drafts, disclosure records, and a signing timeline. Then use the source-linked questions as an interview guide.

  1. 01

    Is the complete agreement, including every referenced schedule, written and signed by both parties?Conn. Gen. Stat. § 46b-36c

  2. 02

    Which provisions depend on a deed, plan consent, will, trust, insurance designation, or other implementing document?Conn. Gen. Stat. § 46b-36d(a)–(b)

  3. 03

    Does any provision attempt to fix a child-related issue that remains subject to judicial review or modification?Conn. Gen. Stat. § 46b-36d(c)

  4. 04

    Did the contemplated marriage occur, and does the agreement provide a different effective event or date?Conn. Gen. Stat. § 46b-36e

  5. 05

    Are all claimed amendments or revocations written, signed, and matched to the operative agreement?Conn. Gen. Stat. § 46b-36f

  6. 06

    What admissible evidence bears on whether execution was voluntary?Conn. Gen. Stat. § 46b-36g(a)(1)

  7. 07

    What facts at execution and at enforcement should counsel present for the statutory unconscionability inquiry?Conn. Gen. Stat. § 46b-36g(a)(2), (c)

  8. 08

    What pre-execution records address the amount, character, and value of property, obligations, and income?Conn. Gen. Stat. § 46b-36g(a)(3)

  9. 09

    What dates and communications show the opportunity, if any, to consult independent counsel?Conn. Gen. Stat. § 46b-36g(a)(4)

  10. 10

    Could the support provision cause public-assistance eligibility at separation or dissolution?Conn. Gen. Stat. § 46b-36g(b)

  11. 11

    If marriage validity is disputed, how could section 46b-36h affect the requested relief?Conn. Gen. Stat. § 46b-36h

  12. 12

    Was the agreement made before October 1, 1995, and how do tolling and equitable defenses affect the claim?Conn. Gen. Stat. §§ 46b-36i–46b-36j

Inspect the evidence

Principal statutes and cases

Every citation label above resolves to one of these records. Open the linked authority and verify the current text with licensed counsel.

formalitiesstatute

Conn. Gen. Stat. § 46b-36c

Connecticut writing and signature requirements

A Connecticut premarital agreement must be in writing and signed by both parties and is enforceable without consideration.

  • The record should preserve the complete signed agreement and every incorporated schedule.
permitted subjectsstatute

Conn. Gen. Stat. § 46b-36d(a)–(b)

Connecticut permitted agreement subjects

Connecticut lists property rights and management, disposition, spousal support, estate planning, insurance, retirement-plan rights, choice of law, and personal rights and obligations as agreement subjects, subject to public policy and criminal statutes.

  • The retirement-plan provision should be reviewed with any plan-specific consent or federal-law requirements.
child supportstatute

Conn. Gen. Stat. § 46b-36d(c)

Connecticut child-related limitations

A Connecticut premarital agreement may not adversely affect a child's right to support, and child care, custody, visitation, and other child-affecting provisions remain subject to judicial review and modification.

  • Child-related language requires separate review rather than treatment as an ordinary contractual allocation.
effective datestatute

Conn. Gen. Stat. § 46b-36e

Connecticut effect of marriage

A Connecticut premarital agreement becomes effective upon marriage unless the agreement provides otherwise.

  • The agreement should be checked for a different express effectiveness provision.
amendment revocationstatute

Conn. Gen. Stat. § 46b-36f

Connecticut amendment and revocation formalities

After marriage, a Connecticut premarital agreement may be amended or revoked only by a written agreement signed by the parties.

  • The amended agreement or revocation is enforceable without consideration.
voluntarinessstatute

Conn. Gen. Stat. § 46b-36g(a)(1)

Connecticut voluntary-execution safeguard

A Connecticut premarital agreement or amendment is not enforceable if the resisting party proves that it was not executed voluntarily.

  • Draft history, negotiation timing, communications, counsel records, and signing circumstances can be relevant evidence for counsel to assess.
limitationsstatute

Conn. Gen. Stat. § 46b-36g(a)(2), (c)

Connecticut unconscionability timing

Connecticut identifies unconscionability when the agreement was executed or when enforcement is sought, and assigns that issue to the court as a matter of law.

  • The statute expressly includes an enforcement-time inquiry; the evidence review cannot predict the court's legal determination.
financial disclosurestatute

Conn. Gen. Stat. § 46b-36g(a)(3)

Connecticut financial-disclosure safeguard

Before execution, Connecticut requires fair and reasonable disclosure of the amount, character, and value of the other party's property, financial obligations, and income for this enforcement safeguard.

  • Schedules and supporting records should distinguish property, obligations, and income rather than collapsing them into a single total.
independent counselstatute

Conn. Gen. Stat. § 46b-36g(a)(4)

Connecticut opportunity for independent counsel

Connecticut's enforcement statute asks whether the resisting party was afforded a reasonable opportunity to consult with independent counsel.

  • The statutory wording concerns a reasonable opportunity; the factual record should not imply representation that did not occur.
public assistancestatute

Conn. Gen. Stat. § 46b-36g(b)

Connecticut public-assistance support safeguard

A court may require support to the extent necessary to avoid public-assistance eligibility caused by a premarital support modification or elimination.

  • The statute frames this safeguard at separation or marital dissolution.
void marriagestatute

Conn. Gen. Stat. § 46b-36h

Connecticut void or voidable marriage rule

If the marriage is held void or voidable, an otherwise premarital agreement is enforceable only to the extent necessary to avoid an inequitable result.

  • The provision does not itself predict what relief a court would find necessary.
limitationsstatute

Conn. Gen. Stat. §§ 46b-36i–46b-36j

Connecticut limitations and pre-1995 applicability

Connecticut tolls an applicable limitations period during marriage while preserving equitable defenses, and the act does not affect the validity of agreements made before October 1, 1995.

  • The agreement date should be checked before applying the act's framework.

Known boundaries

Package limitations

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