Nevada child support calculator

How does Nevada calculate child support?

Nevada uses a percentage of the paying parent’s income, starting with gross income rather than take-home pay. The guideline is Nevada Administrative Code Chapter 425, with an edition effective February 1, 2020, confirmed on October 15, 2026.

Voluntary retirement, deferred compensation and employee benefit-plan contributions remain included in gross income. Exclusions include child support received, foster or kinship care payments, SNAP, SSI and specified public assistance and personal-injury compensation (NAC 425.025).

The percentages apply separately to each income band, and the results are added—not one percentage applied to all income (NAC 425.140). In a case without joint physical custody, the base calculation uses the paying parent’s income rather than splitting a combined-income amount.

• One child: 16% of the first $6,000 a month, 8% of the portion above $6,000 through $10,000, and 4% above $10,000 (NAC 425.140).
• Two children: 22%, 11% and 6% across those same income bands (NAC 425.140).
• Three children: 26%, 13% and 6% across those bands (NAC 425.140).
• Four children: 28%, 14% and 7% across those bands (NAC 425.140).
• Each additional child beyond four adds 2%, 1% and 0.5% across those bands (NAC 425.140).

How does joint physical custody change support?

For joint physical custody, Nevada calculates each parent’s obligation and offsets the amounts. The parent with the higher obligation pays the difference, so equal parenting time does not necessarily mean no support (NAC 425.115). The offset provision does not state an overnight or day threshold for qualifying as joint physical custody.

When parents have multiple children and joint physical custody applies to some but not all, each obligation depends on the number of children that parent owes support for. The obligations are then offset (NAC 425.115).

What else changes Nevada child support?

The percentage calculation is the starting point, not the entire order. A court departing from the guideline must state the guideline amount and findings supporting the departure (NAC 425.100).

• Child care: The court must consider reasonable costs paid by either parent and divide them equitably (NAC 425.130).
• Medical support: Every order must address it. Qualifying health insurance, vision or dental premiums are subject to a 5% monthly-gross-income affordability test and the court’s reasonableness determination (NAC 425.135).
• Other children: Legal responsibility for others is an adjustment factor, not a stated automatic deduction (NAC 425.150).
• Low income: When economic circumstances limit ability to pay the standard amount, the court must use the low-income schedule. Below its lowest income level, the court may set an amount balancing self-support and child support (NAC 425.145).
• Other adjustments: Special educational needs, parenting-time transportation costs, relative household income, necessary child expenses and ability to pay may affect support (NAC 425.150).

When does support end or change?

Except as otherwise provided by law, a single-child order ends at 18, or, if the child is still in high school, at graduation or 19, whichever comes first (NAC 425.160). For a multiple-child order allocating amounts by child, that child’s amount ends on the first day of the following month under those age and school rules (NAC 425.160).

An unallocated multiple-child order requires a motion or stipulation to adjust support as a child ages out (NAC 425.160; NAC 425.165). Later modifications generally require a change in circumstances (NAC 425.170).

For official guideline information, the state resource is the Child Support Guidelines page maintained by Nevada’s Division of Social Services. The Supreme Court of Nevada, Administrative Office of the Courts, publishes the Schedule of Child Support Obligations for Low-Income Payers, including a 2026 schedule; the court determines the ordered amount.