Delaware Spousal Support Calculator
Estimate alimony under 13 Del. C. § 1512: the dependent-party test, the 50% duration limit, the 20-year rule and termination events

Delaware Alimony at a Glance

Use this free Delaware alimony calculator to see how 13 Del. C. § 1512 may apply to your situation. Delaware has no alimony formula, but it does have a dependent-party test and a hard duration limit: no more than 50% of the length of the marriage, unless the marriage lasted 20 years or more. The same state law applies whether your case is in Wilmington (New Castle County), Dover (Kent County), Newark, Rehoboth Beach (Sussex County) or anywhere else in Delaware, and alimony cases are heard in the Family Court. This tool checks the dependent-party requirements, applies the 50% limit, illustrates an amount from need and ability to pay, and lists your answers against the statutory factors.

Dependent party only

Alimony requires dependence, insufficient property, and inability to support oneself through appropriate employment or custody of a child for whom employment is not appropriate.

13 Del. C. § 1512(b)

No formula

The amount and time are what the court deems just, without regard to marital misconduct, after weighing the listed factors.

13 Del. C. § 1512(c)

The 50% limit

Eligibility lasts for no more than 50% of the term of the marriage. At 20 years or more of marriage there is no time limit.

13 Del. C. § 1512(d)

Automatic termination

Unless the parties agree otherwise in writing, alimony ends on death, or the recipient's remarriage or cohabitation.

13 Del. C. § 1512(g)

Duty to seek work

A recipient must make good-faith efforts to seek vocational training and employment unless the court finds it inequitable.

13 Del. C. § 1512(e)

Modification

Only on a real and substantial change of circumstances, in the Family Court.

13 Del. C. § 1519

Delaware Spousal Support Calculator

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Income Information

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Marriage Details

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Dependent-Party Test Under 13 Del. C. § 1512(b)

A party may be awarded alimony only if all three requirements are met: dependence on the other party, insufficient property, and either inability to support themselves through appropriate employment or custody of a child for whom employment is not appropriate. A calculator cannot decide this for you.

Is dependent on the other party for support, and the other party is not otherwise obligated to provide it after the decree
Lacks sufficient property, including any marital property awarded, to provide for reasonable needs
Cannot support themselves through appropriate employment
Is the custodian of a child whose condition or circumstances make it appropriate not to seek employment

Delaware Statutory Factors and Agreements

Recipient expects a substantial property award
The payor is unemployed or underemployed
Either spouse gave up or postponed economic, education or employment opportunities during the marriage
The spouses have a written agreement about alimony

Agreements about alimony in Delaware

  • A party who waived alimony in writing, before, during or after the marriage, has no remedy under § 1512 (§ 1512(f)).
  • Unless the parties agree otherwise in writing, alimony ends on death, remarriage or cohabitation (§ 1512(g)).
  • A stipulated alimony agreement may be governed by contract principles rather than the "real and substantial change" standard (Rockwell v. Rockwell, Del. 1996, as noted in Terro-Edmon v. Edmon, Del. 2020).

Needs and Resources

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Earning Capacity

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Your Delaware Alimony Estimate

Illustrative monthly amount

Step 1: Dependent-party test under § 1512(b)

    Need and ability to pay

    • Recipient's need:
    • Payor's ability to pay:

    Delaware has no formula. These are two practical building blocks of an award (§ 1512(c)(1), (7)), not the court's method.

    Step 2: Duration limit under § 1512(d)

    How the amount was estimated

    Your answers under the § 1512(c) factors

    The court weighs these together; they are listed for discussion with an attorney, not scored.

      When alimony would end, and other notes

      Modifying or Ending Alimony in Delaware

      Legal standards

      • Modification: alimony may be modified or terminated only upon a showing of real and substantial change of circumstances (13 Del. C. § 1519(a)(4)).
      • Automatic ending: unless the parties agree otherwise in writing, alimony ends on death, remarriage or cohabitation of the recipient (§ 1512(g)).
      • Notice duty: the recipient must promptly notify the other party of remarriage or cohabitation (§ 1512(g)).
      • Where: the Family Court enforces alimony orders and may modify or terminate them (§ 1519(c)).

      Common grounds

      • A real, substantial and lasting change in either party's income, such as involuntary job loss
      • A new or worsening disability or illness
      • Cohabitation or remarriage of the recipient, which ends alimony unless agreed otherwise
      • Failure by the recipient to make good-faith efforts toward training and employment (§ 1512(e))
      • Retirement of the payor, judged on the facts

      Typical steps

      1. Gather evidence such as pay records, tax returns, medical records or proof of the living arrangement.
      2. File a petition to modify or terminate in the Family Court.
      3. Serve the other party as the Family Court rules require.
      4. Present evidence at the hearing; the party seeking the change carries the burden.
      5. Ask an attorney from what date any change will apply.

      Practical cautions

      • Never stop paying without a court order or a clear termination event. Doing so can lead to contempt and arrears.
      • Check your agreement. A stipulated alimony agreement may be governed by contract principles.
      • Document cohabitation carefully. The statute requires regularly residing together and holding out as a couple.

      Delaware Authority and Case Law

      13 Del. C. § 1512 (alimony)

      Delaware Code, Title 13, Chapter 15

      What it says: Authorizes interim and final alimony for a dependent party; sets the factors and the 50% limit with the 20-year exception; imposes a duty to seek training and employment; bars alimony after a written waiver; and ends alimony on death, remarriage or cohabitation unless agreed otherwise in writing.

      13 Del. C. § 1519 (modification or termination)

      Delaware Code, Title 13, Chapter 15

      What it says: Alimony may be modified or terminated only on a showing of real and substantial change of circumstances; ends on death or remarriage unless agreed otherwise in writing and expressly provided in the decree; and is enforced exclusively by the Family Court.

      Terro-Edmon v. Edmon (Del. 2020)

      No. 134, 2019, Delaware Supreme Court (order)

      Point cited: The Court affirmed denial of a modification petition, noting its holding in Rockwell v. Rockwell, 681 A.2d 1017 (Del. 1996), that an alimony agreement such as a stipulation and order is governed by contract principles, not the "real and substantial change" standard in § 1519(a)(4).

      Parks v. Carver (Del. Feb. 11, 2026)

      No. 291, 2025, Delaware Supreme Court (order)

      Point cited: The Family Court set alimony by comparing a budget deficit with the payor's estimated surplus, over a period of 39 months that reflected the 50% limit in § 1512(d), and offset it against the sale of the marital home. The Supreme Court reversed the property split to the extent it exceeded what the defaulting party had notice of, noting that the alimony estimate was based on speculation about income.

      Summaries are for general information and may not reflect later developments. Have an attorney confirm the current status of any authority before relying on it.

      Delaware Alimony FAQs

      Delaware has no alimony formula. A court may award interim alimony to a dependent party while a divorce or annulment is pending, and may award alimony at the end of the case only to a party who is a dependent party (13 Del. C. § 1512(a), (b)). The order is in the amount and for the time the court considers just, without regard to marital misconduct, after considering all relevant factors (§ 1512(c)).

      A party may be awarded alimony only if, after considering the § 1512(c) factors, the party (1) is dependent on the other party for support and the other party is not contractually or otherwise obligated to provide that support after the decree; (2) lacks sufficient property, including any award of marital property, to provide for reasonable needs; and (3) is unable to support themselves through appropriate employment or is the custodian of a child whose condition or circumstances make it appropriate that they not be required to seek employment (§ 1512(b)).

      Section 1512(c) lists: the financial resources of the party seeking alimony, including marital or separate property apportioned to them, and their ability to meet reasonable needs independently; the time necessary and expense required to acquire education or training; the standard of living during the marriage; the duration of the marriage; the age, physical and emotional condition of both parties; any financial or other contribution to the education, training, vocational skills, career or earning capacity of the other party; the ability of the other party to meet their needs while paying alimony; tax consequences; whether either party foregone or postponed economic, education or other employment opportunities during the marriage; and any other factor the court expressly finds just and appropriate.

      A person is eligible for alimony for a period not to exceed 50% of the term of the marriage. If a party is married for 20 years or longer, there is no time limit on eligibility, although the § 1512(c) factors still apply and the court considers them (§ 1512(d)). For example, a 10-year marriage allows up to 5 years of alimony, and a 6.5-year marriage allows up to 39 months. The Delaware Supreme Court's February 2026 order in Parks v. Carver noted the Family Court's use of a 39-month alimony period for a marriage that began in April 2017 and ended with a petition in October 2023.

      Unless the parties agree otherwise in writing, the obligation to pay future alimony ends on the death of either party or the remarriage or cohabitation of the party receiving alimony, and the recipient must promptly notify the other party of remarriage or cohabitation (§ 1512(g)). Section 1519(b) similarly ends alimony on death or remarriage unless agreed otherwise in writing and expressly provided in the decree. A party who has waived alimony in writing, before, during or after the marriage, has no remedy under § 1512 (§ 1512(f)).

      Section 1512(g) defines cohabitation as regularly residing with an adult of the same or opposite sex, if the parties hold themselves out as a couple, regardless of whether the relationship confers a financial benefit on the party receiving alimony. Proof of sexual relations is admissible but not required. Unlike in many states, the statute does not require a showing that the relationship changed the recipient's finances.

      The alimony order is made without regard to marital misconduct (§ 1512(c)), so adultery and similar conduct do not change eligibility, amount or duration. Financial misconduct, such as wasting marital money, is more likely to be addressed in the property division or under the catch-all factor in § 1512(c)(10). Ask an attorney how it would apply to your facts.

      An order awarding alimony may be modified or terminated only upon a showing of a real and substantial change of circumstances (§ 1519(a)(4)), and the Family Court enforces alimony orders and may modify or terminate them (§ 1519(c)). The standard does not apply the same way to a stipulated alimony agreement: in Terro-Edmon v. Edmon (Del. 2020), the Supreme Court noted its earlier holding in Rockwell v. Rockwell, 681 A.2d 1017 (Del. 1996), that an alimony agreement is governed by contract principles. A recipient also has a continuing duty to make good-faith efforts to seek appropriate vocational training and employment unless the court finds after a hearing that it would be inequitable, such as for a severe disability, age, or the needs of a minor child (§ 1512(e)). Keep paying until a court order or a termination event applies.

      For divorce or separation agreements executed after December 31, 2018, alimony is not deductible by the payor and not taxable income to the recipient for federal income tax purposes, under the Tax Cuts and Jobs Act of 2017. Instruments executed on or before December 31, 2018 keep the old federal treatment unless a later modification expressly adopts the new rules. Tax consequences are also a § 1512(c) factor. Ask a tax professional how your Delaware return treats alimony.

      It follows the statute. It first tests the dependent-party requirements in § 1512(b) from your answers. It then applies the 50% limit to your marriage length, or shows that there is no limit at 20 years or more, and illustrates an amount from the recipient's need (counted expenses minus income) and the payor's ability to pay (income minus expenses and child support), taking the smaller figure. It lists your answers against the § 1512(c) factors.

      Delaware has no formula, so the amount is an illustration only. It does not predict an award. A judge weighs every factor.

      Alimony law differs across the country. See the national alimony calculator for a general benchmark, or browse the calculators for every state.

      Disclaimer: This calculator provides educational estimates based on 13 Del. C. §§ 1512 and 1519 as published, and it is not legal advice. Delaware has no alimony formula, and this tool does not predict what a court will order; each judge decides on the evidence. Statutes and case law change. Consult a licensed Delaware family law attorney about your situation.