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New Mexico Child Support Calculator

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To use the child support calculator, select or enter the appropriate information next to each statement.

When you have completed the form, click on the calculate button to get an estimate of the amount of child support that the non-custodial parent will have to pay to the custodial parent in New Mexico.

Disclaimer: Please remember that these calculators are for informational and educational purposes only. The amount of child support a court will order for any particular case may be different from the amount estimated by the calculator.

For the most part, these calculators assume that all of the children at issue will primarily live with one parent. They are not intended to estimate child support for joint physical custody or split custody arrangements.

These calculators do not take into account any possible adjustments for children who are not subject to the custody order, but who are living with one of the parents. Finally, these calculators may be based on older or outdated state guidelines or calculations and may not take into consideration state or federal tax implications on income.

These and many other factors can affect a child support order entered by a court.

Frequently Asked Questions about Child Support in New Mexico

In New Mexico, child support cases are handled by the Child Support Enforcement Division (CSED) through the New Mexico Human Services Department. Read the following information for specific procedures and child support guidelines in New Mexico.

How is child support calculated?
New Mexico child support is determined based on a number of factors, including: the number of children needing support, the gross monthly income of both parents, and the monthly cost of daycare and family health insurance.  You can learn more about New Mexico’s child support guidelines at

How much will my child support order be?
If you would like an estimate on how much your monthly child support payment may be, use the handy child support calculator at This free tool takes into consideration New Mexico child support guidelines to provide you with an accurate estimate of what your likely child support payment may be.  

What do I do if the non-custodial parent lives in another state? 
Apply for services with CSED. Because of the Uniform Interstate Family Support Act (UIFSA), the New Mexico CSED can refer a case for legal action in another state. UIFSA also makes possible interstate wage withholding and allows for the arrest of a non-custodial parent who flees to another state to avoid paying child support.

What if my financial circumstances change?
You can modify an existing child support order if there is a change in either parent’s financial situation. Child support payments can be increased or decreased depending on the circumstances. The CSED may perform reviews of child support orders every three years, or may do a review at the request of either parent.

Where can I apply for CSED services?

You can apply online or at your local field office. You can find field offices in Roswell, Farmington, Rio Rancho, Santa Fe, Las Cruces, Albuquerque, and elsewhere in the state.

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