What Should Be in a Prenup in Delaware? Complete 2026 Guide to Prenuptial Agreement Clauses

Delaware prenuptial agreements must be in writing, signed by both parties, and supported by fair and reasonable financial disclosure to be enforceable under Del. Code tit. 13 § 322. The state follows the Uniform Premarital Agreement Act (UPAA), allowing couples to address property rights, spousal support waivers, debt protection, and estate planning provisions. Properly drafted prenups take precedence over Delaware's equitable distribution laws, giving couples predictability rather than leaving asset division to judicial discretion. The Delaware Family Court filing fee is $175 (as of March 2026), and the state requires a 6-month separation period before finalizing any divorce.

What Delaware Law Allows in a Prenuptial Agreement

Delaware Code Title 13 § 323(a) permits prenuptial agreements to address seven broad categories of rights and obligations, including property disposition, spousal support modification, estate planning coordination, and any other matter not violating public policy. Delaware courts enforce these agreements when both parties sign voluntarily, provide fair financial disclosure, and the terms are not unconscionable at execution. The statute specifically authorizes couples to override default equitable distribution rules that would otherwise apply in divorce.

Under Del. Code tit. 13 § 323(a), parties may contract regarding: (1) property rights and obligations in any property, whenever acquired; (2) disposition of property upon separation, divorce, or death; (3) modification or elimination of spousal support; (4) creation of wills, trusts, or other estate planning documents; (5) ownership and disposition of life insurance death benefits; (6) choice of law governing construction of the agreement; and (7) any other matter not violating public policy or criminal statutes.

Delaware's equitable distribution standard under 13 Del.C. § 1513 divides marital property fairly but not necessarily equally, with divisions typically ranging from 50/50 to 67/33 depending on circumstances. A prenuptial agreement allows couples to establish their own division formula, removing court discretion entirely. This certainty is particularly valuable for business owners, professionals with significant earnings potential, and individuals entering second marriages with children from prior relationships.

Essential Clauses for What to Include in a Prenup Delaware

Every enforceable Delaware prenup should contain eight core provisions addressing property classification, debt allocation, spousal support, financial disclosure, and procedural safeguards. These clauses transform a basic contract into a comprehensive financial framework that will withstand judicial scrutiny if challenged. Missing even one essential element can jeopardize enforceability under Delaware's UPAA requirements.

1. Property Classification Clause

The property classification clause defines which assets remain separate property and which become marital property subject to division. Delaware law presumes all property acquired during marriage is marital property under 13 Del.C. § 1513(c), regardless of title. Your prenup can override this presumption by specifying that certain categories remain separate, including premarital assets, inheritances, gifts, and business interests.

A comprehensive property clause should itemize current assets with approximate values, establish rules for appreciation of separate property, address commingling risks, and specify how future acquisitions will be classified. Delaware courts have held that vague or ambiguous property provisions may be interpreted against the drafting party, making specificity essential.

2. Debt Allocation Clause

The debt allocation clause protects each spouse from liability for the other's premarital debts and establishes responsibility for debts incurred during marriage. Under Delaware's equitable distribution framework, debt acquired during marriage to benefit the marriage can be divided between spouses. A prenuptial agreement allows you to specify that student loans, business debts, or credit card balances remain the sole responsibility of the incurring spouse.

Delaware prenups should address: premarital debts each party brings to the marriage; student loan obligations; business debts and liabilities; credit card debts; and procedures for handling jointly incurred debts. Including specific debt amounts in the financial disclosure schedule provides documentation if disputes arise later.

3. Spousal Support Waiver or Limitation Clause

Delaware fully enforces spousal support waivers in prenuptial agreements when executed voluntarily and without unconscionability. Under Del. Code tit. 13 § 323(a), parties may modify or eliminate spousal support obligations entirely. A party who has waived alimony rights in a written premarital agreement has no remedy under Delaware's alimony statute per statutory interpretation.

Spousal support provisions can take several forms: complete waiver of all alimony claims; limitation to a specific dollar amount or duration; formulas based on marriage length (e.g., $1,000 per month for each year of marriage); or caps tied to income levels. Delaware courts have enforced complete waivers even when one spouse sacrificed career advancement during the marriage, provided the agreement was voluntary and the waiving party understood the consequences.

4. Financial Disclosure Schedule

Delaware requires fair and reasonable financial disclosure as a condition of enforceability under Del. Code tit. 13 § 326. You must list all assets, debts, income sources, and potential future inheritances with specific values. Failure to provide adequate disclosure gives the other party grounds to challenge the entire agreement.

The Delaware Supreme Court's Silverman v. Silverman decision established that minor disclosure errors may not invalidate an agreement when the overall net worth is accurately represented. However, the court in Coulbourn v. Lambert (1996) set aside a prenup where the wife lacked financial knowledge and did not participate in negotiations. Best practice requires comprehensive schedules including: real property with fair market values and mortgage balances; bank and investment accounts with current balances; retirement accounts including 401(k)s, IRAs, and pensions; business interests with valuations; life insurance policies with death benefits; anticipated inheritances; and all debts with creditor names and balances.

5. Estate Planning Coordination Clause

Delaware prenups may include provisions requiring each party to execute wills, trusts, or other estate planning documents consistent with the agreement's terms. This clause ensures that death benefits, inheritance rights, and beneficiary designations align with the prenuptial agreement. Under Del. Code tit. 13 § 323(a)(4), parties may contract regarding the making of wills, trusts, or other arrangements to carry out the agreement.

Estate planning clauses typically address: waiver of elective share rights (Delaware allows surviving spouses to claim a statutory share of the estate); life insurance beneficiary designations; retirement account beneficiary designations; and obligations to maintain specific insurance coverage amounts for the benefit of the other spouse or children.

6. Voluntary Execution Statement

Delaware courts will not enforce a prenuptial agreement if the party against whom enforcement is sought did not execute the agreement voluntarily under Del. Code tit. 13 § 326(a)(1). Including explicit acknowledgments of voluntary execution, adequate time for review, and opportunity to consult counsel creates a strong evidentiary record.

The Coulbourn v. Lambert case identified factors that defeat voluntariness: lack of independent legal counsel combined with failure to explain legal rights; signing close to the wedding date; lack of financial sophistication; and failure to participate in negotiations. A well-drafted prenup should include statements that each party: had sufficient time to review the agreement (ideally 30 or more days before the wedding); was advised to seek independent legal counsel; either obtained counsel or knowingly waived that right; read and understood all provisions; and signed without coercion, duress, or undue influence.

7. Amendment and Revocation Procedures

Under Del. Code tit. 13 § 325, a premarital agreement may be amended or revoked after marriage only by written agreement signed by both parties. Including specific procedures for modification ensures both parties understand how changes must be documented and that informal oral modifications are ineffective.

Amendment clauses should specify: requirement of written modification signed by both parties; notarization or witnessing requirements for amendments; prohibition on oral modifications; and procedures for creating postnuptial agreements that supersede the original prenup.

8. Severability Clause

A severability clause ensures that if one provision is found unenforceable, the remainder of the agreement survives. Delaware courts decide unconscionability questions as matters of law under Del. Code tit. 13 § 326(c), and a problematic provision could otherwise invalidate the entire agreement.

The severability clause should state that invalid provisions shall be modified to the minimum extent necessary to make them enforceable, or deleted entirely, while preserving all remaining terms. This protects the core protections of the agreement even if specific provisions are challenged successfully.

Additional Optional Clauses for Delaware Prenups

Beyond the eight essential provisions, Delaware prenuptial agreements can include optional clauses addressing lifestyle matters, pet ownership, business succession, and agreement expiration. These provisions offer additional customization but may have varying enforceability depending on their terms and how Delaware courts interpret public policy.

Sunset Clause

A sunset clause causes the prenuptial agreement to expire after a specified period, typically 5-15 years of marriage, or gradually phases out protections over time. Delaware recognizes sunset provisions as valid contract terms. Couples may choose sunset clauses to acknowledge that a long-lasting marriage may warrant different treatment than a short-term union.

Sunset provisions typically take two forms: complete expiration after a set number of years (e.g., agreement void after 10 years of marriage); or graduated phase-out (e.g., spousal support waiver reduces by 10% for each year of marriage after year 5). Including a sunset clause requires careful consideration of whether you want protections to diminish as the marriage endures.

Pet Custody Clause

Delaware specifically authorizes courts to determine disposition of companion animals acquired during marriage as marital property, considering each party's ability to care for the pet and attachment factors. A prenuptial agreement can address pet ownership directly, specifying which spouse retains custody of specific animals or establishing a decision-making process.

Pet custody provisions are increasingly common and generally enforceable in Delaware. The clause should identify each pet by name and species, specify ownership rights, address veterinary expense responsibility, and establish visitation arrangements if desired.

Business Protection Clause

Delaware prenuptial agreements frequently include provisions protecting business interests from division in divorce. These clauses may specify that business ownership remains separate property, establish buyout procedures if the non-owner spouse has contributed to business growth, or limit valuation methodologies that would otherwise apply.

Business protection clauses should address: characterization of ownership interests as separate property; treatment of appreciation during marriage; salary and distributions as separate versus marital income; non-compete obligations if both spouses work in the business; and buyout terms if required.

Infidelity Clause

Delaware allows parties to include lifestyle provisions addressing consequences for marital misconduct, though enforcement is uncertain. Since Delaware is a no-fault divorce state, marital misconduct generally does not affect property division or alimony. Infidelity clauses may have limited practical effect beyond creating incentives for fidelity.

Courts may decline to enforce infidelity provisions deemed unconscionable or against public policy. If including such a clause, draft consequences that are proportional rather than punitive, and recognize that evidentiary challenges may make enforcement difficult.

What Cannot Be Included in a Delaware Prenup

Delaware law expressly prohibits certain provisions in prenuptial agreements, and including unenforceable terms may raise questions about the entire agreement's validity. Understanding these limitations protects both parties and ensures the agreement will withstand judicial review.

Child Support Provisions

Delaware Code Title 13 § 323(b) explicitly states that the right of a child to support may not be adversely affected by a premarital agreement. Any attempt to waive, limit, or predetermine child support obligations is void and unenforceable. Courts determine child support based on Delaware's guidelines at the time of divorce, considering both parents' incomes and the child's needs.

Child Custody Arrangements

Arrangements for child custody and parenting time are reserved for divorce proceedings and cannot be predetermined in a prenuptial agreement. Delaware courts make custody determinations based on the best interests of the child at the time of separation, considering circumstances that may not have existed when the prenup was signed.

Unconscionable Terms

A Delaware court will not enforce a prenuptial agreement that was unconscionable when executed. Under Del. Code tit. 13 § 326(a)(2), unconscionability combined with inadequate disclosure defeats enforceability. Terms that leave one spouse with practically nothing while the other retains substantial assets are vulnerable to challenge.

Provisions Violating Public Policy

Delaware Code Title 13 § 323(a)(7) allows parties to include any matter not in violation of public policy or criminal statutes. Provisions that incentivize divorce, require illegal conduct, or attempt to waive statutory rights that cannot be contracted away will be unenforceable.

Comparison: Delaware Prenup Requirements vs. Neighboring States

Steps to Create an Enforceable Delaware Prenup

Creating an enforceable prenuptial agreement in Delaware requires methodical preparation, comprehensive documentation, and sufficient time before the wedding date. Following these steps maximizes the likelihood that courts will uphold your agreement if challenged.

Step 1: Begin Discussions Early

Start prenup conversations at least 3-6 months before the wedding. Delaware courts have invalidated agreements signed too close to the wedding date as potentially coerced. The Coulbourn v. Lambert decision specifically cited timing as a factor in finding involuntary execution.

Step 2: Complete Financial Disclosure

Both parties must compile comprehensive financial disclosure schedules listing all assets, debts, income, and anticipated inheritances with specific values. Delaware requires fair and reasonable disclosure; failure to provide accurate information is grounds for invalidation.

Step 3: Engage Independent Legal Counsel

While Delaware does not legally require independent counsel, lack of representation combined with other factors contributed to the agreement being overturned in Coulbourn. Each party should have their own attorney review and explain the agreement's terms and consequences.

Step 4: Negotiate and Draft

Both parties should participate in negotiations rather than one party presenting a take-it-or-leave-it document. Courts are more likely to enforce agreements where both parties contributed to the terms.

Step 5: Execute Properly

Sign the agreement well before the wedding ceremony, with both parties present. Include acknowledgments of voluntary execution, adequate review time, and understanding of all terms. Notarization adds an additional layer of authenticity.

Enforceability Challenges Under Delaware Law

Delaware courts may refuse to enforce prenuptial agreements under specific circumstances defined by statute and case law. Understanding these challenges helps couples create agreements that will withstand scrutiny.

Involuntary execution under Del. Code tit. 13 § 326(a)(1) defeats enforceability entirely. Factors indicating involuntary execution include: signing shortly before the wedding; pressure or ultimatums from the other party; lack of opportunity to consult counsel; failure to explain legal rights; and unequal bargaining positions combined with lack of sophistication.

Unconscionability at execution under Del. Code tit. 13 § 326(a)(2) combined with inadequate disclosure also defeats enforceability. The challenging party must prove the agreement was unconscionable when signed and that they: were not provided fair and reasonable financial disclosure; did not voluntarily waive disclosure rights in writing; and did not have adequate knowledge of the other party's finances.

FAQs: What to Include in a Prenup Delaware

Can I waive alimony completely in a Delaware prenup?

Yes, Delaware fully enforces spousal support waivers in prenuptial agreements under Del. Code tit. 13 § 323(a). A party who waives alimony rights in a valid written agreement has no claim under Delaware's alimony statute. However, the waiver must be voluntary, and the agreement cannot be unconscionable at execution. Complete waivers are enforceable even after long marriages where one spouse sacrificed career advancement.

How much does a Delaware prenup cost?

Delaware prenuptial agreements typically cost $1,500 to $5,000 for attorney-drafted agreements, depending on complexity. Simple agreements may cost $1,500 to $2,500 per party, while complex agreements involving business valuations, multiple properties, or sophisticated estate planning can exceed $5,000 per party. Online prenup services range from $300 to $800 but may not address Delaware-specific requirements.

Can a prenup protect my business in Delaware?

Yes, Delaware prenuptial agreements can classify business ownership as separate property, protect against division of appreciation during marriage, and establish buyout procedures. Business protection clauses should specify treatment of active appreciation (growth due to owner's efforts) versus passive appreciation (market growth), as Delaware courts treat these differently in equitable distribution.

Does Delaware require independent lawyers for each party?

Delaware does not legally require independent counsel for each party to execute a valid prenup. However, the Coulbourn v. Lambert decision found involuntary execution partly because the wife lacked independent representation and did not participate in negotiations. Having separate attorneys significantly strengthens enforceability and is strongly recommended.

When should we sign the prenup before our Delaware wedding?

Sign your Delaware prenuptial agreement at least 30 days before the wedding, though 60-90 days is preferable. The closer to the wedding date you sign, the greater the risk that courts will find coercion or duress. Begin discussions 3-6 months before the wedding to allow adequate time for financial disclosure, negotiation, and independent legal review.

Can we include a sunset clause in our Delaware prenup?

Yes, Delaware recognizes sunset clauses that cause the agreement to expire after a specified period or gradually phase out protections. Common sunset provisions void the agreement after 10-15 years of marriage or reduce protections by 10% for each year of marriage after a threshold. Sunset clauses acknowledge that long-lasting marriages may warrant different treatment.

What happens if my spouse hides assets during financial disclosure?

Inadequate financial disclosure can invalidate the entire prenuptial agreement under Del. Code tit. 13 § 326. The challenging party must prove they were not provided fair and reasonable disclosure and did not have adequate knowledge of the other party's finances. The Delaware Supreme Court's Silverman ruling clarified that minor disclosure errors may not invalidate an agreement if overall net worth was accurately represented.

Can we address pet custody in a Delaware prenup?

Yes, Delaware specifically allows courts to determine pet custody as a marital property issue, and prenuptial agreements can address pet ownership directly. Your agreement can specify which spouse retains custody of specific animals, establish visitation arrangements, and allocate veterinary expense responsibility. Pet custody clauses are increasingly common and generally enforceable.

Does a prenup affect child support in Delaware?

No, Delaware Code Title 13 § 323(b) prohibits prenuptial agreements from adversely affecting a child's right to support. Any provision attempting to waive, limit, or predetermine child support is void and unenforceable. Courts calculate child support using Delaware's guidelines at the time of divorce, regardless of any prenuptial agreement terms.

Can we modify our prenup after marriage in Delaware?

Yes, under Del. Code tit. 13 § 325, a premarital agreement may be amended or revoked after marriage by written agreement signed by both parties. The modification is enforceable without additional consideration. Oral modifications are not valid; all changes must be documented in writing with both signatures.

Sources:

• Delaware Code Online - Premarital Agreements
• Delaware Courts - Family Court Filing Fees
• Delaware Family Law - Prenuptial Agreements
• HelloPrenup - Delaware Prenup Laws 101
• WomensLaw.org - Delaware Divorce