New Hampshire

Child Support in New Hampshire

How support is calculated, modified, and enforced — from guidelines to college expenses.

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Guide

When Does Child Support End in New Hampshire? (2026 Guide)

Child support in New Hampshire ends at age 18, or age 19 if the child is still in high school. Learn termination rules under RSA 461-A:14, emancipation, and exceptions.

Antonio G. Jimenez, Esq.·15 min read

Guide

How to Use the New Hampshire Child Support Calculator (2026 Guide)

Use the New Hampshire child support calculator to estimate payments under RSA 458-C. NH uses income shares model with 25.6% of net income for one child.

Antonio G. Jimenez, Esq.·16 min read

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