New Hampshire Child Support Calculator

Calculate child support in New Hampshire using the state's official Income Shares Model. Includes custody adjustments, health insurance credits, and childcare deductions.

New Hampshire divorces typically cost 34% less than the national average of $12,900.

Child Support in New Hampshire

Formula
Income Shares Model
Income cap
None specified
Equal parenting presumption
No
Property system
Equitable distribution

Child Support Calculator in New Hampshire: What You Should Know

New Hampshire uses the Income Shares Model, combining both parents' net incomes to set the support obligation from the state guideline. Net income here is gross income minus taxes and certain court-ordered or mandatory deductions, so the figure the guideline applies to is below gross pay. Each parent then covers a proportional share, with medical support and childcare added to the calculation. The guidelines include a self-support reserve, and there is no flat upper income cap.

Key point: New Hampshire runs the Income Shares Model on net income and includes a self-support reserve that protects a low-earning parent's basic needs.

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Tell us the basics

Locked to New Hampshire on this page.

Who is paying child support? *

Use your gross (before-tax) monthly income. If you are paid annually, divide by 12.

Use their gross (before-tax) monthly income. If they are paid annually, divide by 12.

This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.

Child Support in New Hampshire - Frequently Asked Questions

How is child support calculated in New Hampshire?

New Hampshire uses the Income Shares Model to calculate child support. Both parents' gross incomes are combined, and each parent's share of the total obligation is proportional to their share of the combined income.

Can child support be modified in New Hampshire?

Yes. Either parent can request a child support modification if there has been a substantial change in circumstances, such as a significant change in income, change in custody arrangements, or changes in the child's needs. Courts in New Hampshire typically require a change of at least 15-20% in the support amount to justify modification.

Does custody arrangement affect child support in New Hampshire?

Yes. Parenting time is a significant factor in child support calculations. When a parent has the children for a substantial portion of time (typically 40% or more overnights per year), child support is adjusted to reflect the additional direct costs that parent bears.

Is there an income cap for child support in New Hampshire?

New Hampshire does not set a specific income cap in its child support formula. However, courts have discretion to deviate from the guideline amount in cases with very high incomes.

How long does child support last in New Hampshire?

Child support in New Hampshire typically continues until the child turns 18 or graduates from high school, whichever is later. Support may continue longer if the child has a disability or if the parents agree to extend support for college expenses.

This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.