The state of New Hampshire uses specific guidelines to determine child support. Parents who want to estimate either how much child support they owe, or how much child support they will receive, should use New Hampshire’s interactive child support calculator, which is provided by the state.
Tips for Using the New Hampshire Child Support Calculator
- Only use the New Hampshire child support calculator provided on the state’s Department of Child Support services web site.
- Third-party child support calculators may not provide users with a reliable, accurate child support estimate.
- Be aware that the New Hampshire child support calculator is designed to provide an estimate only.
- In order to use the calculator, you will need to know the total gross income of both parents, including wages, tips, bonuses, self-employment earnings, investment income, and all other sources of income.
- You will also need to know about certain expenses for each parent, including mandatory retirement contributions, state taxes, health insurance premiums, and child care expenses, as well as the amount of court-ordered child support for any other children (as in the case of parents who have children from another relationship).
Tips for Parents Requesting Child Support in New Hampshire
- Become familiar with New Hampshire’s child support guidelines.
- In order to apply for child support services in New Hampshire, you must request an application through your nearest Department of Health and Human Services district office.
- When filing for child support, provide a much detailed, accurate information as you can.
- Parents receiving child support in New Hampshire can opt to receive child support via direct deposit or electronic debit cards.
Tips for Parents Who Owe Child Support in New Hampshire
- Child support payments must be mailed to the Child Support Regional Processing Center in Manchester, NH.
- Be aware that the state of New Hampshire charges interest on unpaid child support.
- If you have difficulty paying child support, consider requesting a child support modification.

