Free · New Mexico · Current law
Based on New Mexico's official Income Shares formula. Enter both parents' incomes and get an estimate in under a minute.
Before taxes — wages, self-employment, bonuses
A best estimate is fine for now
Taxes, mandatory retirement, union dues…
Work or school related
Estimated monthly support
The other parent pays you, the parent with primary timesharing.
Estimate only — based on a simplified reading of New Mexico Child Support Guidelines and Table (NMSA 40-4-11.1). Official calculator → A judge can deviate. Not legal advice.
Get a plain-English copy of this estimate, the numbers used, and a short checklist for what to review before relying on it.
New Mexico uses the Income Shares model. The basic child support obligation is calculated based on the combined gross income of both parents and is paid proportionately. The calculation uses either Worksheet A for basic visitation (one parent has less than 35% of the time) or Worksheet B for shared responsibility (each parent has at least 35% of the time). Additional costs for medical and dental insurance, net reasonable child-care, and extraordinary expenses are added to the basic obligation.
A substantial change in either parent's income — voluntary or involuntary — can trigger a modification.
Changes in childcare costs or the children's health insurance premiums directly adjust the support amount.
If the custody schedule changes significantly, support can be recalculated under New Mexico guidelines.
Medical conditions, disabilities, or educational needs can justify a departure from the guideline amount.
Common questions
New Mexico has no mandatory statewide waiting period. Uncontested divorces typically finalize in 45–90 days for uncontested cases. Contested divorces involving custody disputes or complex assets can take 12–24 months or longer.
To file for divorce in New Mexico, at least one spouse must have lived in New Mexico for 6 months before filing. Filing in the wrong jurisdiction can result in your case being dismissed, so confirm with your county clerk if you recently moved.
New Mexico is a no-fault divorce state. You can file citing 'irreconcilable differences' or 'irretrievable breakdown of the marriage' without proving the other spouse did anything wrong. Fault grounds (adultery, cruelty, abandonment) still exist but are rarely needed and don't typically affect property division.
New Mexico is a community property state. Assets and debts acquired during the marriage are generally split 50/50, regardless of who earned or spent them. Separate property — assets owned before marriage or received as gifts or inheritance — stays with the original owner.
New Mexico uses the Income Shares model to calculate child support. Both parents' incomes are considered along with the number of children, timesharing schedule, childcare costs, and health insurance. The resulting guideline amount is presumed correct but a judge can deviate based on special circumstances.
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