How New Mexico Calculates Child Support

New Mexico uses the Income Shares model to determine child support obligations. This page explains the guidelines, formula, and key factors.

Model Type

Income Shares

Income-shares model based on combined gross monthly income and number of children; each parent's obligation prorated by income share; adjusted for custody arrangement and add-ons (childcare, health insurance, extraordinary expenses).

Income Basis & Definitions

Income Basis:

gross

Number Of Children On Order

Selects the base-support amount from the New Mexico schedule.

Source: NMSA § 40-4-11.1(C): Schedule of basic support

Parent A Income

Parent A gross monthly income.

Source: NMSA § 40-4-11.1(D): Gross income definition

Parent B Income

Parent B gross monthly income.

Source: NMSA § 40-4-11.1(D): Gross income definition

Parenting Time Handling

Custody Type Or Worksheet Selection

Calculator applies Worksheet A (sole) or Worksheet B (shared) custody.

Source: NMSA § 40-4-11.1(G): Shared responsibility adjustment

Parenting Time Input

Number of overnights or time-sharing percentage.

Source: Parenting time input

Deductions & Adjustments

Other Child Support Or Dependents Adjustment

Preexisting child support obligations considered.

Source: Other support obligations

Spousal Support Adjustment

Spousal support paid or received adjusts income.

Source: Spousal support adjustment

Add-Ons & Allocation

Work Related Childcare Costs

Childcare costs allocated.

Source: Childcare costs

Child Health Insurance And Uninsured Medical

Health insurance and uninsured medical expense allocation.

Source: Medical support

Caps, Minimums & Deviations

Income Cap And Above Cap Handling

Schedule caps at combined income; above-cap at court discretion.

Source: Maximum schedule income

Deviation Factors And Findings

Deviation allowed for specific criteria; requires findings.

Source: NMSA § 40-4-11.1(K): Deviation criteria

Try the Calculator

Use our New Mexico child support calculator to estimate your obligation.

Official Sources

New Mexico Statutes Annotated § 40-4-11.1 (Child Support Guidelines)