Free · New Hampshire · Current law
Based on New Hampshire's official Income Shares formula. Enter both parents' incomes and get an estimate in under a minute.
Before taxes — wages, self-employment, bonuses
A best estimate is fine for now
Taxes, mandatory retirement, union dues…
Work or school related
Estimated monthly support
The other parent pays you, the parent with primary timesharing.
Estimate only — based on a simplified reading of New Hampshire child support guidelines. Official calculator → A judge can deviate. Not legal advice.
Get a plain-English copy of this estimate, the numbers used, and a short checklist for what to review before relying on it.
Child support is calculated based on the parties' Combined Monthly Net Income and a guideline percentage related to the number of children. A Child Support Guideline Table and Worksheet are used to determine the recommended obligation amount. The online calculator also assists in this calculation.
A substantial change in either parent's income — voluntary or involuntary — can trigger a modification.
Changes in childcare costs or the children's health insurance premiums directly adjust the support amount.
If the custody schedule changes significantly, support can be recalculated under New Hampshire guidelines.
Medical conditions, disabilities, or educational needs can justify a departure from the guideline amount.
Common questions
New Hampshire has no mandatory statewide waiting period. Uncontested divorces typically finalize in 45–90 days for uncontested cases. Contested divorces involving custody disputes or complex assets can take 12–24 months or longer.
To file for divorce in New Hampshire, there is no fixed residency waiting period, though you must be domiciled in New Hampshire at the time of filing. Filing in the wrong jurisdiction can result in your case being dismissed, so confirm with your county clerk if you recently moved.
New Hampshire allows both no-fault and fault-based divorce. No-fault filings cite 'irreconcilable differences' or 'incompatibility.' Fault grounds such as adultery, abandonment, or cruelty can be alleged, and in some cases fault can influence alimony or property awards.
New Hampshire follows equitable distribution. Courts divide marital property fairly but not necessarily equally, considering factors like each spouse's income, contributions to the marriage, and economic circumstances. Separate property (owned before marriage or received as a gift or inheritance) is generally not divided.
New Hampshire uses the Income Shares model to calculate child support. Both parents' incomes are considered along with the number of children, timesharing schedule, childcare costs, and health insurance. The resulting guideline amount is presumed correct but a judge can deviate based on special circumstances.
We'll match you with a New Hampshire family law attorney — free, no obligation, no pressure.