Child Support Calculation Worksheet

IMPORTANT: THIS IS A PREPARATION GUIDE — NOT THE OFFICIAL COURT WORKSHEET

New Mexico requires the use of official Worksheet A (sole/primary custody) or Worksheet B (shared custody) for child support calculations under NMSA 1978, Section 40-4-11.1.
This template provides the substantive content and calculation methodology to help you
prepare — but you must transfer your figures to the official worksheet before filing.
The official forms are available at https://nmcourts.gov/forms-files/child-support/.
Do not file this document directly with the court.

CHILD SUPPORT CALCULATION WORKSHEET

State of New Mexico — Income Shares Model

Court: [________________________________]
County: [________________________________]
Cause Number: [________________________________]
Judge: [________________________________]

TABLE OF CONTENTS

1. Party and Children Information
2. Gross Income Determination
3. Adjusted Gross Income
4. Combined Income and Proportionate Shares
5. Basic Child Support Obligation
6. Additional Expenses
7. Total Child Support Obligation
8. Deviations from Guidelines
9. Duration and Termination
10. New Mexico-Specific Notes

1. PARTY AND CHILDREN INFORMATION

Custodial Parent:
Name: [________________________________]
Address: [________________________________]
Employer: [________________________________]

Non-Custodial Parent:
Name: [________________________________]
Address: [________________________________]
Employer: [________________________________]

Children Subject to This Order:

Time-Sharing Arrangement:
Non-custodial parent's percentage of time with child(ren): [____]%

Applicable Worksheet:
☐ Worksheet A — Sole/Primary Custody (noncustodial parent has child <35% of the time)
☐ Worksheet B — Shared Custody (each parent has child 35% or more of the time)

2. GROSS INCOME DETERMINATION

☐ Income imputed to Custodial Parent — Basis: [________________________________]
☐ Income imputed to Non-Custodial Parent — Basis: [________________________________]

3. ADJUSTED GROSS INCOME

4. COMBINED INCOME AND PROPORTIONATE SHARES

Combined Adjusted Gross Income: $[________]

5. BASIC CHILD SUPPORT OBLIGATION

Number of children subject to this order: [____]

Basic Child Support Obligation (from Schedule): $[________] per month

6. ADDITIONAL EXPENSES

7. TOTAL CHILD SUPPORT OBLIGATION

Obligor (parent who pays): ☐ Custodial Parent ☐ Non-Custodial Parent
Monthly child support payment amount: $[________]

8. DEVIATIONS FROM GUIDELINES

☐ No deviation requested
☐ Deviation requested — Basis:

☐ The financial resources of the child
☐ Extraordinary medical, educational, or psychological needs of the child
☐ The standard of living the child would have enjoyed
☐ The financial resources and needs of each parent
☐ The child care and homemaker contributions of each parent
☐ Excessive debt of either parent incurred during the marriage
☐ Tax consequences
☐ Transportation and communication expenses for time-sharing
☐ Other: [________________________________]

Requested adjustment: $[________] per month (☐ increase / ☐ decrease)
Justification: [________________________________]

9. DURATION AND TERMINATION

Child support shall continue for each child until:
☐ The child reaches age 18
☐ The child reaches age 19 while attending high school
☐ The child is emancipated
☐ Other: [________________________________]

10. NEW MEXICO-SPECIFIC NOTES

• Income Shares Model: New Mexico uses the Income Shares Model under NMSA § 40-4-11.1, combining both parents' adjusted gross incomes.
• Two Worksheets: Worksheet A applies when the noncustodial parent has the child less than 35% of the time; Worksheet B applies for shared custody (35%+ each parent).
• Imputation of Income: If a parent is willfully unemployed or underemployed, income equal to earning potential is imputed. For parents without work history, the prevailing minimum wage may be used.
• Excluded Income: General assistance, public assistance benefits received by the child, and child support received for other children are excluded from gross income.
• Proportional Additional Expenses: Health insurance and work-related childcare are divided proportionally by income share.
• Modification: Either party may seek modification upon a material and substantial change in circumstances.

VERIFICATION

I declare under penalty of perjury that the information provided in this worksheet is true, correct, and complete to the best of my knowledge.

Custodial Parent:
Signature: [________________________________]
Printed Name: [________________________________]
Date: [__/__/____]

Non-Custodial Parent:
Signature: [________________________________]
Printed Name: [________________________________]
Date: [__/__/____]

SOURCES AND REFERENCES

• NMSA 1978, § 40-4-11.1 — Child Support Guidelines
• New Mexico Child Support — DivorcNet
• Cordell & Cordell — New Mexico Child Support