Child Support Calculation Worksheet

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

Massachusetts requires the use of official form CJD 304 (Child Support Guidelines Worksheet) 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 worksheet before filing.
The official form is available at https://www.mass.gov/lists/probate-and-family-court-forms-for-child-support-guidelines.
Do not file this document directly with the court.

CHILD SUPPORT CALCULATION WORKSHEET

Commonwealth of Massachusetts — Income Shares Model

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

TABLE OF CONTENTS

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

1. PARTY AND CHILDREN INFORMATION

Recipient:
Name: [________________________________]
Address: [________________________________]
Employer: [________________________________]

Payor:
Name: [________________________________]
Address: [________________________________]
Employer: [________________________________]

Children Subject to This Order:

Parenting Time Arrangement:
☐ Approximately 2/3 Recipient / 1/3 Payor
☐ Shared parenting (approximately equal time)
☐ Split custody (each parent provides primary residence for at least one child)
☐ Other: [________________________________]

2. GROSS INCOME DETERMINATION

☐ Income attributed to Recipient — Basis: [________________________________]
☐ Income attributed to Payor — Basis: [________________________________]

3. ADJUSTED GROSS INCOME

4. COMBINED INCOME AND SUPPORT CALCULATION

Combined Adjusted Gross Income (weekly): $[________]
Combined Adjusted Gross Income (annual): $[________]

5. BASIC SUPPORT OBLIGATION

Number of children subject to this order: [____]
Multiplier applied: [____]

Base Weekly Support Amount (from Table A): $[________]
Adjusted for number of children: $[________]

6. ADDITIONAL EXPENSES

7. TOTAL CHILD SUPPORT OBLIGATION

Weekly child support order amount: $[________]
Obligor: ☐ Recipient ☐ Payor

8. DEVIATIONS FROM GUIDELINES

☐ No deviation requested
☐ Deviation requested — Basis:

☐ Extraordinary medical or dental expenses of the child
☐ Extraordinary educational expenses
☐ The child's special needs
☐ The financial resources available to the child
☐ Disparate standards of living between the two households
☐ Existing support obligations to other children or former spouses
☐ A parent's substantial financial resources
☐ The child's age (greater needs of older children)
☐ Other: [________________________________]

Requested adjustment: $[________] per week (☐ 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 (domiciled with parent and dependent)
☐ The child reaches age 23 (enrolled in undergraduate educational program)
☐ The child is emancipated
☐ Other: [________________________________]

10. MASSACHUSETTS-SPECIFIC NOTES

• Income Shares Model: Massachusetts uses the Income Shares Model under the Child Support Guidelines, considering both parents' gross incomes.
• 2025 Guidelines Effective December 1, 2025: The current guidelines apply to combined incomes up to $450,000/year (increased from $400,000).
• Child Multipliers: 1.00 (1 child), 1.20 (2 children), 1.27 (3 children), 1.32 (4 children), 1.35 (5 children).
• Childcare Cap: Up to $430/week for childcare may be apportioned between parents.
• Parenting Time: The Guidelines address three scenarios: (i) approximately equal shared time; (ii) 2/3 Recipient / 1/3 Payor; (iii) split custody.
• Extended Support: Support may extend to age 21 (if dependent) or age 23 (if in undergraduate program), which is atypical among states.
• Modification: Either party may seek modification upon a material change in circumstances or upon the issuance of new guidelines.

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.

Recipient:
Signature: [________________________________]
Printed Name: [________________________________]
Date: [__/__/____]

Payor:
Signature: [________________________________]
Printed Name: [________________________________]
Date: [__/__/____]

SOURCES AND REFERENCES

• Massachusetts Child Support Guidelines (Mass.gov)
• 2025 Child Support Guidelines (Mass.gov)
• M.G.L. c. 208, § 28
• 2025 Child Support Guidelines — Introductory Material