Nevada Child Support Calculator

How Nevada Calculates Child Support (NRS 125B)

Nevada calculates child support by first combining you and the other parent's gross monthly incomes. This combined total is used to find a 'basic support obligation' from a state schedule. This total obligation is then divided between you and the other parent based on your individual percentages of the combined income, as governed by Nevada Revised Statutes (NRS) 125B.070.

Shared Custody & The 40% Rule Explained

In Nevada, if each parent has physical custody of the children for at least 40% of the year (146 overnights), a special shared custody formula applies. Under NRS 125B.080, the basic support obligation is first multiplied by 1.5, and then a cross-credit calculation is performed to determine each parent's final obligation based on their income and parenting time.

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✓ Verified for 2026 Guidelines • Reviewed October 2026 by Harmoney

Nevada Child Support Guidelines at a Glance

Guideline Model Income Shares Model
Governing Legal Authority NRS 125B.070 / 125B.080
Shared Custody Threshold 146 Overnights (40% time)
Age Support Ends Age 18 (or 19 if in High School)
Modification Standard 20% Change in Support Amount

Frequently Asked Questions About NV Support


At what age does child support end in NV?

Child support in Nevada ends when a child reaches age 18, or age 19 if they are still enrolled in high school and pursuing a diploma. Per NRS 125B.110, support terminates automatically upon the child's graduation from high school or their 19th birthday, whichever occurs first.

How is child support calculated if one parent is unemployed in NV?

If a parent is unemployed or underemployed without a valid reason, a Nevada court will 'impute' income to that parent based on their earning capacity. This means the support calculation will be based on what the parent could or should be earning, considering their work history, skills, and local job opportunities, as outlined in NRS 125B.080(8).

How do I modify a child support order in NV?

You can modify a child support order in Nevada if there has been a change in circumstances that results in at least a 20% change in the monthly support amount. Under NRS 125B.145, either parent may also request a review of the support order from the court every three years without needing to show a change in circumstances.

Does NV child support cover college expenses?

No, Nevada law does not require a parent to pay for a child's college or post-secondary education expenses. Support obligations end at the age of majority, and any contribution towards college costs must be voluntarily agreed upon by the parents, typically in a written settlement agreement.

How does NV handle health insurance and childcare costs?

Health insurance premiums and reasonable work-related childcare costs are added to the basic child support obligation and are divided between the parents in proportion to their gross monthly incomes. The court will order one or both parents to provide medical coverage for the child if it is accessible and reasonably priced, as mandated by NRS 125B.080.