In New Hampshire, more and more parents share joint residential responsibility for children, sharing equally in the parenting time. Many people may assume that if parents share equally in the time with the children, then they will have equal expenses and therefore neither party would pay child support to the other. However, the general philosophy

Child support in New Hampshire is calculated according to a formula set forth in RSA 458-C:3. The percentage of the parties’ income that will be the root of the calculation is based on how many children are receiving support.

Number of Children Percentage of Net Income 
1 = 25 percent
2 = 33 percent