Child Support Calculation Worksheet

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

Missouri requires the use of official Form 14 (Child Support Amount Calculation Worksheet)
under Supreme Court Rule 88.01 for child support calculations.
This template provides the substantive content and calculation methodology to help you
prepare — but you must transfer your figures to the official Form 14 before filing.
The official form is available at https://www.courts.mo.gov/page.jsp?id=638.
Do not file this document directly with the court.

CHILD SUPPORT CALCULATION WORKSHEET

State of Missouri — Income Shares Model (Form 14)

Court: [________________________________]
County/City: [________________________________]
Case Number: [________________________________]
Judge/Commissioner: [________________________________]

TABLE OF CONTENTS

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

1. PARTY AND CHILDREN INFORMATION

Parent A (Petitioner):
Name: [________________________________]
Address: [________________________________]
Employer: [________________________________]

Parent B (Respondent):
Name: [________________________________]
Address: [________________________________]
Employer: [________________________________]

Children Subject to This Order:

Custody/Parenting Arrangement:
☐ Sole physical custody — Parent A
☐ Sole physical custody — Parent B
☐ Joint physical custody
☐ Split custody (each parent has primary custody of at least one child)

2. GROSS INCOME DETERMINATION

☐ Income imputed to Parent A — Basis: [________________________________]
☐ Income imputed to Parent B — Basis: [________________________________]

3. ADJUSTMENTS AND DEDUCTIONS

4. COMBINED ADJUSTED INCOME AND SHARES

Combined Adjusted Monthly Gross Income (Line 4): $[________]

5. BASIC CHILD SUPPORT OBLIGATION

Number of children subject to this order: [____]

Basic Child Support Obligation (from Schedule, Line 6): $[________] per month

6. ADDITIONAL EXPENSES

7. TOTAL CHILD SUPPORT OBLIGATION

Obligor (parent who pays): ☐ Parent A ☐ Parent B
Monthly child support payment amount: $[________]

8. DEVIATIONS FROM GUIDELINES

☐ No deviation requested
☐ Deviation requested — Basis:

☐ Extraordinary medical needs of the child
☐ Extraordinary educational expenses
☐ The child's special or unusual needs
☐ The financial resources of both parents
☐ The standard of living the child would have enjoyed
☐ The physical and legal custody arrangement
☐ Reasonable work-related child care expenses
☐ The reasonable needs of the child
☐ 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 21 while enrolled in higher or vocational education (§ 452.340.5)
☐ The child is emancipated
☐ Other: [________________________________]

10. MISSOURI-SPECIFIC NOTES

• Form 14 Required: Missouri courts must use Form 14 (Supreme Court Rule 88.01) to calculate child support. A new Form 14 took effect January 1, 2026.
• Income Shares Model: Missouri considers both parents' incomes to determine the total obligation.
• Written Findings for Deviation: Any deviation from the Form 14 amount requires written findings explaining why the guidelines amount is unjust or inappropriate (§ 452.340.9).
• Extended Support to Age 21: Missouri allows child support to continue to age 21 if the child is in higher education, with specific requirements (§ 452.340.5).
• Modification: Either party may seek modification upon showing a continuing and substantial change in circumstances.
• Abatement for Periods of Custody: Support may be abated during periods when the obligor has continuous custody for 30 or more consecutive days.

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.

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

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

SOURCES AND REFERENCES

• Mo. Rev. Stat. § 452.340
• Supreme Court Form 14 — Child Support Amount Calculation Worksheet
• Form 14 Directions, Comments, and Examples (PDF)
• New Form 14 Effective January 1, 2026 (MoBar)