Estimate your monthly child support using Nevada's current guidelines under NAC 425. This calculator handles both primary and joint physical custody, and shows you exactly how the number is reached — so you can see the math, not just the result.
All figures are gross monthly income — before taxes.
One parent has the child more than 60% of the time. The other parent pays support.
Salary, wages, overtime, tips, commissions, bonuses, self-employment income after business expenses, rental income and pensions all count.
▪ Nothing you type here leaves your browser. The calculation runs entirely on your own device — no income figures are sent to PRO LAW GROUP, saved, or stored anywhere.
Enter an income to see an estimate.
This calculator produces an estimate of the base child support obligation under NAC 425.140. It is general information, not legal advice, and using it does not create an attorney–client relationship. It is not a court order, not a binding calculation, and not a quote for legal fees.
A Nevada judge is not bound by this figure. The guideline amount is presumptive, and courts routinely adjust it under NAC 425.150 for medical and childcare costs, special educational or medical needs, travel for visitation, a parent’s legal responsibility to support other children, and the relative circumstances of both households. The calculator also does not apply the low-income schedule under NAC 425.145, does not account for imputed income where a parent is voluntarily unemployed or underemployed, and reflects the guidelines as published at the time of writing — rules and schedules change. Your actual order may differ, in either direction.
For an assessment of your own circumstances, speak with a Nevada family law attorney. PRO LAW GROUP offers a free, no-obligation consultation at (702) 474-0500. Attorney advertising — Donn W. Prokopius, Esq., Nevada Bar No. 6460, 6655 W. Sahara Ave, Suite D220, Las Vegas, NV 89146, is responsible for the content of this page. Licensed in Nevada only. See our full disclaimer.
Nevada changed its approach in 2020. The old flat-percentage statute was replaced by the guidelines now in NAC Chapter 425, administered through the Division of Welfare and Supportive Services. The current method applies tiered percentages to the paying parent’s gross monthly income, so the rate steps down as income rises.
The base obligation under NAC 425.140 works like tax brackets. Each portion of income is charged at its own rate, and the results are added together:
| Children | First $6,000 | $6,000–$10,000 | Above $10,000 |
|---|---|---|---|
| 1 child | 16% | 8% | 4% |
| 2 children | 22% | 11% | 6% |
| 3 children | 26% | 13% | 6% |
| 4 children | 28% | 14% | 7% |
| Each additional | +2% | +1% | +0.5% |
There is no upper income cap in Nevada. A parent earning $25,000 a month still pays 4% on everything above $10,000 for one child — the rate simply gets smaller, it does not stop.
This is the part most people get wrong. Sharing custody equally does not mean nobody pays. Under NAC 425.115, the court calculates each parent’s obligation separately, then offsets the two — and the parent with the higher obligation pays the other the difference.
So if one parent earns $8,000 a month and the other earns $4,000, with one child in joint custody, the higher earner still owes the difference between the two calculated amounts. Only when both parents earn the same does the obligation net to zero.
Gross means before taxes and deductions — not your take-home pay. Nevada defines it broadly, and it catches more than most people expect:
Salary and wages · overtime · tips · commissions and bonuses · self-employment income after ordinary business expenses · rental income · pensions and retirement distributions · interest and dividends · workers’ compensation and disability benefits · unemployment benefits
If a parent is voluntarily unemployed or underemployed, a Nevada court can impute income — meaning it calculates support based on what that parent could reasonably earn rather than what they actually report. Quitting a job does not reduce a support obligation.
The calculated figure is presumptive — the judge starts there, but NAC 425.150 lets the court adjust it. These are the factors that most often move the number in Clark County:
Health insurance premiums for the child, unreimbursed medical expenses, and work-related childcare are commonly added on top of the base obligation.
A child requiring therapy, specialised schooling, or ongoing treatment can justify an upward adjustment.
Where parents live far apart, the expense of transporting the child for visitation can be factored in.
A parent legally responsible for supporting other children may have their obligation adjusted.
The court can consider the overall financial circumstances on both sides, not just the paying parent’s income in isolation.
Support also does not adjust itself. If your income changes materially, you must file a motion to modify — a change of 20% or more in the paying parent’s gross monthly income is treated as a change of circumstances, and orders can generally be reviewed every three years. Until the court changes the order, the existing amount stands and arrears keep accruing.
Whether you are establishing support, responding to a request, or trying to modify an order that no longer fits your circumstances, the guideline figure is only the beginning. Donn W. Prokopius has handled Clark County family law matters since 2000 — at a flat fee quoted before the work starts.
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