Ohio Alimony Calculator
Estimate spousal support and how long it lasts under Ohio Rev. Code § 3105.18. Enter your numbers below for an instant estimate with a step-by-step breakdown and statute citations.
Ohio Alimony Calculator
This state publishes a guideline equation that takes a share of the payor’s income and subtracts a share of the payee’s.
Based on Ohio Rev. Code § 3105.18 · Verified August 21, 2026
Ohio has no statutory alimony formula
Ohio has no statutory alimony formula, so this figure uses the AAML national guideline (30% of the payor's gross income minus 20% of the payee's, capped at 40% of combined income) purely as a ballpark. The figure below is an estimate to give you a ballpark — a Ohio judge decides the actual amount and duration using the factors listed beneath the calculator. About this method.
Enter income details to see your estimate
Factors Ohio Courts Weigh
- •Income of both parties from all sources, including income from property divided in the divorce
- •Relative earning abilities of the parties
- •Ages and the physical, mental, and emotional conditions of the parties
- •Retirement benefits of the parties
- •Duration of the marriage
- •Whether a party with custody of a minor child should work outside the home
- •Standard of living established during the marriage
- •Relative extent of education of the parties
- •Relative assets and liabilities, including any court-ordered payments
- •Contribution of one party to the education, training, or earning ability of the other (including helping obtain a professional degree)
- •Time and expense necessary for the seeking party to acquire education or training to obtain appropriate employment
- •Tax consequences of a spousal support award for each party
- •Lost income production capacity resulting from a party's marital responsibilities
- •Any other factor the court expressly finds to be relevant and equitable
How Ohio Alimony Works
- •Ohio has NO formula for the amount or duration of spousal support. The Supreme Court of Ohio's Domestic Relations Resource Guide states plainly: 'Spousal support is income-driven; however, there is no mathematical formula like with child support.' Awards are fully discretionary under R.C. 3105.18(C)(1).
- •The court must consider all 14 statutory factors and may also weigh any other factor it finds relevant and equitable. Each party is presumed to have contributed equally to the production of marital income.
- •There is also no statutory temporary/pendente-lite guideline. The Supreme Court guide confirms 'there is no specific formula in Ohio for calculating temporary support awards'; temporary support focuses on immediate needs and preserving the status quo at the court's discretion.
- •Some Ohio practitioners and local courts informally use rules of thumb as starting points (e.g., roughly one-third of the income difference, or one year of support per three years of marriage), but these are NOT binding and are not enacted in any statute.
- •The court retains jurisdiction to modify spousal support only if the original decree expressly reserves jurisdiction and a substantial change of circumstances occurs (R.C. 3105.18(E)-(F)). Indefinite ('lifetime') awards remain possible for long-term marriages at the court's discretion.
This is an estimate for educational purposes only, not legal advice. Alimony is highly discretionary; a Ohio judge can order a different amount or duration. Consult a licensed Ohio family-law attorney about your situation. See the official Ohio resource.
How Ohio Calculates Alimony
Ohio addresses spousal support under Ohio Rev. Code § 3105.18. It uses a guideline equation that takes a percentage of the payor's gross income and subtracts a percentage of the payee's gross income, with statutory caps. The calculator above applies that equation to your figures and shows each step.
Unlike child support, alimony is one of the most discretionary areas of family law. Even in states with a guideline equation, the figure is a starting point a judge can adjust after weighing the statutory factors, the length of the marriage, and each spouse's needs and ability to pay. Treat any number here as an informed estimate, not a guaranteed award.
Key Rules in Ohio
- Ohio has NO formula for the amount or duration of spousal support. The Supreme Court of Ohio's Domestic Relations Resource Guide states plainly: 'Spousal support is income-driven; however, there is no mathematical formula like with child support.' Awards are fully discretionary under R.C. 3105.18(C)(1).
- The court must consider all 14 statutory factors and may also weigh any other factor it finds relevant and equitable. Each party is presumed to have contributed equally to the production of marital income.
- There is also no statutory temporary/pendente-lite guideline. The Supreme Court guide confirms 'there is no specific formula in Ohio for calculating temporary support awards'; temporary support focuses on immediate needs and preserving the status quo at the court's discretion.
- Some Ohio practitioners and local courts informally use rules of thumb as starting points (e.g., roughly one-third of the income difference, or one year of support per three years of marriage), but these are NOT binding and are not enacted in any statute.
- The court retains jurisdiction to modify spousal support only if the original decree expressly reserves jurisdiction and a substantial change of circumstances occurs (R.C. 3105.18(E)-(F)). Indefinite ('lifetime') awards remain possible for long-term marriages at the court's discretion.
How Long Alimony Lasts in Ohio
Under the AAML national guideline, duration is a share of the marriage length that rises with the length of the marriage; marriages of 20+ years may receive indefinite support. This is an illustration, not a state durational rule.
What Counts as Income
Ohio's calculation uses each spouse’s gross income — earnings before taxes, including wages, bonuses, commissions, self-employment income, and many recurring sources. Courts can also impute income to a spouse who is voluntarily unemployed or underemployed, meaning support can be based on what a spouse could earn rather than what they currently do. Use your most recent pay stubs and tax return for the most accurate estimate.
Eligibility & Modifying an Order
Not every divorce results in alimony. Ohio courts award it when one spouse has a genuine financial need and the other has the ability to pay, judged against the factors above.
Alimony orders can usually be modified when there is a substantial change in circumstances — for example, a significant change in either spouse's income, the recipient's remarriage or cohabitation, retirement, or the payor's loss of employment. The specific rules and any non-modifiable agreements depend on your court order and Ohio law.
Frequently Asked Questions
Is this Ohio alimony calculator accurate?
It applies the Ohio guideline from Ohio Rev. Code § 3105.18 to the numbers you enter, so it gives a close estimate of a typical guideline award. It is not an official court calculation — a judge can order a different amount after weighing the statutory factors.
Is alimony taxable in Ohio?
For divorces finalized after December 31, 2018, alimony is not deductible by the payor and is not taxable income to the recipient under federal law. Most states follow the federal treatment, but check Ohio's current rules for state income tax.
Does cheating affect alimony in Ohio?
It depends on the state. Some states let courts consider marital misconduct among the alimony factors, while others bar it entirely. Review Ohio Rev. Code § 3105.18 and speak with a Ohio attorney about how fault is treated where you live.
Can alimony be changed later?
Usually yes. Alimony can often be modified when there is a substantial change in circumstances — such as a large change in income, the recipient's remarriage or cohabitation, or the payor's retirement — unless your order or agreement makes it non-modifiable.
Disclaimer
This calculator provides estimates for educational purposes only and is not legal advice. Alimony is highly fact-specific and discretionary; the amount and duration a Ohio court actually orders may differ significantly from any estimate here. For advice about your situation, consult a licensed Ohio family-law attorney.
Know someone who could use this? Share this free tool: