Working Through the NH Child Support Guidelines Worksheet
The New Hampshire child support guidelines are based on an income shares model, which means the court looks at both parents' incomes together to determine a basic obligation before splitting it between them. The worksheet you fill out drives that calculation. It starts with gross income from all sources — wages, bonuses, self-employment, commissions, overtime — and then applies a series of adjustments to arrive at the final support figure. Most people I talk to get stuck on gross versus net income early on and spend way too much time going back and forth. Gross income is your total earnings before any deductions. You don't subtract taxes, Social Security, or health insurance premiums at that first step. The worksheet handles those later. If you pull up the current form, you'll see line 1 asks for gross income directly. Start there.
How to Fill Out the Nh Child Support Guidelines Worksheet
Here's how the process actually goes once you have the form in front of you. Line 1 through line 4 capture each parent's gross income. For self-employed individuals, you're looking at Schedule C figures — but not just the bottom line. The courts expect you to add back depreciation and other non-cash deductions because those aren't real expenses in the sense that money left your pocket. I've seen people try to use their adjusted net profit from self-employment and get kicked back for underreporting income. Once both incomes are entered, the worksheet combines them and references the state's child support obligation table. That table gives you a baseline amount based on total income and the number of children. From there you subtract work-related childcare costs and health insurance premiums paid for the children. Then you split the remaining obligation proportionally based on each parent's share of the combined income. The overnight visitation adjustment is where things get tricky. New Hampshire uses a shared physical custody adjustment that kicks in when a parent has overnight visitation exceeding a certain threshold. The exact threshold varies, but I usually see it around 90 overnights per year as a rough starting point. Above that, the basic obligation gets reduced because the parent is covering more direct costs for the child. Below that threshold, no adjustment applies and the standard calculation stands.
One edge case that comes up constantly is imputed income. If a parent is voluntarily unemployed or underemployed, the court can impute income at their earning capacity rather than their actual earnings. I handled a case where one parent claimed they couldn't find work making $25 an hour in their field, but their last two pay stubs showed consistent employment at that rate. The court imputed based on the pay stubs, not the unemployment claim. Document everything with pay stubs, W-2s, and tax returns if you want to avoid that kind of discrepancy. Another thing most people miss is that the worksheet doesn't account for all possible deviations. There's a separate section for upward and downward departures from the guidelines. Medical expenses not covered by insurance, educational expenses, and special needs can all trigger a deviation if they're significant enough. But you have to raise them explicitly — the worksheet itself won't pull them in automatically. The form can usually be downloaded from the New Hampshire judicial branch website or through the state's legal self-help resources. Most family law sections of the courts also have printed copies available. It's not a complex form, but it is detail-heavy and easy to mess up if you're rushing through it. I'd suggest taking at least an hour with it, preferably two, and double-checking every line before filing.
Get the Full Details
The biggest bottleneck I see is people trying to use the online calculators that some third-party sites offer. Those calculators are often outdated or based on older versions of the guidelines. New Hampshire revised its child support tables not that long ago, and several online tools still reflect the old brackets. Always verify your numbers against the official worksheet and the current income share tables published by the state. A mismatched table can shift your obligation by a few hundred dollars a month, and that adds up fast over the life of an order. If your situation involves multiple marriages, children from different relationships, or significant income fluctuations month to month, the standard worksheet becomes less reliable. In those cases you're better off working with someone who knows the local court practices. The guidelines assume a relatively straightforward income picture, and when reality diverges from that assumption, the numbers on the page stop meaning much without professional interpretation.
