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
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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
Fields marked *with an asterisk are required. Nothing you enter is sent anywhere or saved.
Income Information
ℹ️Total gross monthly income of the spouse who would pay, from all sources, before taxes. Enter current income, including bonuses.
Please enter a valid positive number
ℹ️Take-home income after taxes and payroll deductions. If left blank, gross income is used, which overstates what the payor has available.
Take-home income must be a positive number and cannot exceed gross income
ℹ️Gross monthly income of the spouse who would receive alimony. Enter an expected attributed amount if the recipient is not working to capacity.
Please enter a valid positive number
ℹ️Take-home income after taxes. If left blank, gross income is used, which understates need.
Take-home income must be a positive number and cannot exceed gross income
ℹ️Child support the payor pays or would pay. It reduces what the payor has available for alimony. Enter 0 if none.
Please enter a valid positive number
Marriage Details
ℹ️The term of the marriage drives the duration limit. A marriage under 20 years allows alimony for up to 50% of its term. At 20 years or more there is no time limit on eligibility (13 Del. C. § 1512(d)). Enter decimals, for example 6.5.
Please enter a valid length between 0 and 100 years
ℹ️Age and physical and emotional condition are a factor (§ 1512(c)(5)). Listed in your results; does not change the dollar estimate.
Please enter a valid age between 18 and 100
ℹ️Listed in your results; does not change the dollar estimate.
Please enter a valid age between 18 and 100
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 decreeℹ️§ 1512(b)(1). Support obligations created by contract or otherwise count.
Lacks sufficient property, including any marital property awarded, to provide for reasonable needsℹ️§ 1512(b)(2). Property awarded in the division counts, so this depends on the property settlement.
Cannot support themselves through appropriate employmentℹ️§ 1512(b)(3), first alternative.
Is the custodian of a child whose condition or circumstances make it appropriate not to seek employmentℹ️§ 1512(b)(3), second alternative.
Delaware Statutory Factors and Agreements
ℹ️Remarriage or cohabitation ends alimony unless the parties agree otherwise in writing (§ 1512(g)). Cohabitation means regularly residing with an adult of either sex, if they hold themselves out as a couple, whether or not it confers a financial benefit. Listed in your results; does not change the dollar estimate.
ℹ️The alimony order is made without regard to marital misconduct (§ 1512(c)). Listed in your results; does not change the dollar estimate.
Recipient expects a substantial property awardℹ️The financial resources of the party seeking alimony, including marital or separate property apportioned to them, are a factor (§ 1512(c)(1)). If checked, the results flag the estimate as uncertain.
The payor is unemployed or underemployedℹ️If checked, the results flag that the income entered may understate the payor's ability to pay.
Either spouse gave up or postponed economic, education or employment opportunities during the marriageℹ️§ 1512(c)(9). Listed in your results; does not change the dollar estimate.
ℹ️Tax consequences are a factor (§ 1512(c)(8)). Federal treatment depends on the date.
The spouses have a written agreement about alimonyℹ️The estimate assumes no agreement applies.
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).
An attorney should review your agreement.
Needs and Resources
ℹ️Rent or mortgage, property taxes, insurance and utilities, at the standard of living established during the marriage (§ 1512(c)(3)).
Please enter a valid positive number
ℹ️Premiums not covered by an employer plan plus expected out-of-pocket costs.
Please enter a valid positive number
ℹ️Food, transportation, clothing, personal care and other regular costs.
Please enter a valid positive number
ℹ️The time and expense to acquire education or training to find appropriate employment is a factor (§ 1512(c)(2)). Counted unless a permanent condition is selected.
Please enter a valid positive number
ℹ️The time necessary to acquire education or training (§ 1512(c)(2)). If entered, the results compare it with the duration limit.
Please enter a number of months between 0 and 240
ℹ️The payor's necessary living expenses, so the estimate reflects the payor's ability to meet their own needs while paying alimony (§ 1512(c)(7)). Leave child support out and enter it above. If blank, treated as $0, which overstates what is available.
Please enter a valid positive number
Earning Capacity
ℹ️Education, training and vocational skills are part of the earning-capacity analysis. Listed in your results but does not change the dollar estimate.
ℹ️Listed in your results; does not change the dollar estimate.
Please enter a valid number between 0 and 50
ℹ️A contribution to the other party's education, training or career is a factor (§ 1512(c)(6)). Listed in your results; does not change the dollar estimate.
ℹ️The recipient has a continuing duty to seek vocational training and employment unless the court finds it inequitable, for example because of a severe and incapacitating illness or disability (§ 1512(e)).
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
Gather evidence such as pay records, tax returns, medical records or proof of the living arrangement.
File a petition to modify or terminate in the Family Court.
Serve the other party as the Family Court rules require.
Present evidence at the hearing; the party seeking the change carries the burden.
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
How is alimony decided in Delaware?▼
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)).
Who is a dependent party?▼
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)).
What factors does a Delaware court weigh?▼
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.
How long can alimony last in Delaware?▼
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.
What ends alimony in Delaware?▼
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)).
What counts as cohabitation in Delaware?▼
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.
Does fault matter for alimony in Delaware?▼
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.
Can Delaware alimony be modified?▼
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.
Are Delaware alimony payments tax-deductible?▼
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.
How does this calculator work?▼
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.
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.