Calculator · Estimate · New Hampshire
New Hampshire alimony calculator
New Hampshire sets term alimony by formula: lesser of need or 23% of the gross-income difference, for up to half the marriage. Enter your numbers to apply it step by step, with the citation for each step.[1]
Key facts: term alimony in New Hampshire
| How the law sets it | Formula: we calculate[1] |
|---|---|
| The formula | Lesser of need or 23% of the gross-income difference, for up to half the marriage[1] |
| Law last checked | October 26, 2026 |
How New Hampshire’s formula works, step by step
Term alimony under RSA 458:19-a. Each step shows the arithmetic on your numbers and the source it comes from.
To see the steps, enter your income and your spouse’s income.
From the official text
What New Hampshire law says about term alimony
Plain-English summaries of New Hampshire’s statute and court rules as of the date shown on each, with the quoted text. Not legal advice: laws change and courts apply them case by case.
Formula
Lesser of need or 23% of the income difference
Term alimony is the lesser of the recipient’s reasonable need or 23% of the difference between gross incomes.[1]
N.H. RSA 458:19-a · checked October 26, 2026
Show statute text
“The amount of a term alimony order shall be the lesser of the payee's reasonable need, or a formula based on 23 percent of the difference between the parties' gross incomes at the time the order is created”
Formula
Child support adjusts the incomes
Support actually paid (including child support for the couple’s children) and health insurance for the other spouse come off the payer’s income; child support ordered for the couple’s children is added to the recipient’s.[1]
N.H. RSA 458:19-a · checked October 26, 2026
Show statute text
“As to the payee's income, adding the amount of child support ordered for the parties' joint children.”
How long it lasts
Up to 50% of the marriage
Term alimony lasts at most half the length of the marriage unless the parties agree or justice requires otherwise, and ends when the recipient remarries.[1]
N.H. RSA 458:19-a · checked October 26, 2026
Show statute text
“The maximum duration of term alimony shall be 50 percent of the length of the marriage, unless the parties agree otherwise or the court finds that justice requires an adjustment under paragraph IV.”
Divorce in New Hampshire: waiting period, residency and property rules →
Questions about alimony in New Hampshire
Is there an alimony calculator for New Hampshire?
Yes. New Hampshire sets a guideline by formula (Term alimony under RSA 458:19-a), and the calculator above applies it step by step. It's an estimate: courts decide and can depart from the guideline. — N.H. RSA 458:19-a[1]
How long does alimony last in New Hampshire?
Term alimony lasts at most half the length of the marriage unless the parties agree or justice requires otherwise, and ends when the recipient remarries. — N.H. RSA 458:19-a[1]
States with an alimony formula
Not legal advice. MediationList is a directory of court-listed mediators, not a law firm, and doesn’t endorse any mediator. Estimates follow the official formula as published; courts decide, and can depart from it.
Sources
New Hampshire’s statute and court rules, read on the official site, with the date we checked each.
- N.H. RSA 458:19-a (New Hampshire General Court) (as amended eff. July 9, 2021)↩