Reviewed for current 2026 law
New Hampshire Alimony Calculator 2026
Compare reasonable monthly need with 23 percent of the adjusted gross-income difference.
Reviewed by SupportDecode Editorial Team Page content reviewed Sources Methodology Update log
alimony calculator
Statutory term-alimony formula amount: $1,150.00
The court sets the actual award; this is the statutory formula amount, not a guarantee.
| Line item | Amount |
|---|---|
| 23 percent of adjusted monthly gross-income differenceRSA 458:19-a, term and reimbursement alimony (New Hampshire General Court) | $1,150.00 |
| Supplied reasonable monthly needRSA 458:19-a, term and reimbursement alimony (New Hampshire General Court) | $1,500.00 |
| Lesser statutory formula amountRSA 458:19-a, term and reimbursement alimony (New Hampshire General Court) | $1,150.00 |
Duration limits
- Term alimony: Maximum duration is 50% of the length of the marriage unless the parties agree or justice requires an adjustment
RSA 458:19-a, III
Assumptions
- The gross-income inputs must reflect the child-support and health-cost adjustments required by RSA 458:19-a, II before applying the 23 percent formula.
- The result is the lesser of the supplied reasonable monthly need or 23 percent of the adjusted gross-income difference; eligibility and adjustments remain judicial findings.
Estimate only. The court or state agency calculation controls.
New Hampshire alimony under RSA 458:19 and 458:19-a, effective 2019-01-01.
Term alimony uses a statutory formula ceiling
RSA 458:19-a sets term alimony at the lesser of reasonable need or 23 percent of the parties adjusted gross-income difference unless justice requires an adjustment.
Income must first reflect ordered child support, alimony, health coverage, and other specified adjustments.
Maximum duration is generally 50 percent of the marriage length.
Enter already-adjusted incomes
Apply the child-support and health-cost adjustments required by statute before entering income.
Supply the receiving spouse reasonable monthly need; it is a case finding, not an automatic budget.
What this estimate includes
- 23% difference formula
- Reasonable-need ceiling
- Duration rule
What it leaves out
- Eligibility decision
- Justice-based adjustment
- Reimbursement alimony
New Hampshire alimony calculator FAQs
What is the New Hampshire alimony formula?
The lesser of reasonable need or 23 percent of the adjusted gross-income difference.
Is the formula guaranteed?
No. Eligibility is required and the court may adjust when justice requires.
How does child support affect the inputs?
Ordered child support and specified health costs must be reflected before the income difference is calculated.
How long can term alimony last?
Generally no more than 50 percent of the marriage length, subject to agreement or a justice-based adjustment.
Can the result be zero?
Yes, if there is no positive adjusted income difference or no reasonable need.
Is reimbursement alimony included?
No. This calculator covers the term-alimony formula only.
Official sources
Official sources last verified: .
- RSA 458:19-a, term and reimbursement alimony
New Hampshire General Court Last checked
Changelog: page reviewed . Material changes appear in the update log.