Templates Family Law Child Support Calculation Worksheet

Child Support Calculation Worksheet

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

Michigan requires the use of the official Michigan Child Support Formula (MCSF) manual and worksheets,
along with SCAO form FOC 10 (Uniform Child Support Order), 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 worksheets before filing.
The official forms are available at https://www.courts.michigan.gov/administration/offices/friend-of-the-court-bureau/mcsf/.
Do not file this document directly with the court.

CHILD SUPPORT CALCULATION WORKSHEET

State of Michigan -- Michigan Child Support Formula (MCSF)

MCL 552.605


Table of Contents

  1. Case Information
  2. Identification of Children
  3. Gross Income Determination
  4. Deductions from Income
  5. Net Income Calculation
  6. Base Support Obligation
  7. Medical Support
  8. Childcare Costs
  9. Parenting Time Offset
  10. Deviation Factors
  11. Duration and Modification
  12. Certification and Signatures
  13. Sources and References

1. Case Information

Field Entry
Court Name [________________________________]
Case Number [________________________________]
Plaintiff (Parent 1) [________________________________]
Defendant (Parent 2) [________________________________]
Date of Worksheet [__/__/____]
Prepared By [________________________________]

Custodial Parent: ☐ Parent 1 ☐ Parent 2

Noncustodial Parent: ☐ Parent 1 ☐ Parent 2


2. Identification of Children

# Full Legal Name Date of Birth Age
1 [________________________________] [__/__/____] [____]
2 [________________________________] [__/__/____] [____]
3 [________________________________] [__/__/____] [____]
4 [________________________________] [__/__/____] [____]

Total Number of Children Subject to This Order: [____]


3. Gross Income Determination

3A. Monthly Gross Income

Income Source Parent 1 ($) Parent 2 ($)
Wages / Salary [________] [________]
Overtime [________] [________]
Commissions / Bonuses [________] [________]
Self-Employment Income [________] [________]
Interest / Dividends [________] [________]
Rental Income [________] [________]
Pension / Retirement Benefits [________] [________]
Social Security Benefits [________] [________]
Disability / Workers' Compensation [________] [________]
Unemployment Compensation [________] [________]
Spousal Support Received [________] [________]
Trust Income [________] [________]
In-Kind Perquisites (imputed market value) [________] [________]
Self-Employment Business Deductions Added Back [________] [________]
Other: [________________] [________] [________]
TOTAL MONTHLY GROSS INCOME $[________] $[________]

3B. Imputed Income (If Applicable)

☐ Parent 1 voluntarily unemployed/underemployed -- Imputed income: $[________]/month

☐ Parent 2 voluntarily unemployed/underemployed -- Imputed income: $[________]/month


4. Deductions from Income

Deduction Parent 1 ($) Parent 2 ($)
Federal Income Tax (actual) [________] [________]
State Income Tax (actual) [________] [________]
Local Income Tax [________] [________]
FICA (Social Security and Medicare) [________] [________]
Mandatory Union Dues [________] [________]
Nondiscretionary Retirement Contributions [________] [________]
Court-Ordered Spousal Support Paid to Others [________] [________]
Term Life Insurance Premiums (children as beneficiaries) [________] [________]
Adjustment for Children from Other Relationships [________] [________]
TOTAL DEDUCTIONS $[________] $[________]

5. Net Income Calculation

Calculation Parent 1 ($) Parent 2 ($)
Total Monthly Gross Income (from 3A) [________] [________]
Less: Total Deductions (from Section 4) ([________]) ([________])
NET MONTHLY INCOME $[________] $[________]

Combined Net Monthly Income: $[________]

Parent 1's Percentage of Combined Net Income: [________]%

Parent 2's Percentage of Combined Net Income: [________]%


6. Base Support Obligation

Item Amount ($)
Number of Children [____]
Parent 1's Net Income [________]
Parent 2's Net Income [________]
Base Support Obligation (from MCSF tables) $[________]/month

Obligor's base support amount: $[________]/month


7. Medical Support

7A. Health Insurance

Item Parent 1 ($) Parent 2 ($)
Monthly Health Insurance Premium for Child(ren) [________] [________]
Less: Employer Contribution / Subsidies ([________]) ([________])
Net Out-of-Pocket Premium $[________] $[________]

Health insurance currently provided by: ☐ Parent 1 ☐ Parent 2 ☐ Neither

7B. Ordinary Medical Expenses

Item Amount ($)
Annual Ordinary Medical Expense Amount (per MCSF) [________]
Monthly Ordinary Medical Amount [________]
Parent 1's Share ([________]%) $[________]
Parent 2's Share ([________]%) $[________]

7C. Extraordinary Medical Expenses

Item Details
Allocation of extraordinary medical expenses Parent 1: [________]% / Parent 2: [________]%
Threshold above which expenses are extraordinary $[________]/year

8. Childcare Costs

Item Amount ($)
Actual Monthly Childcare Costs [________]
Less: Subsidies / Tax Credits / Reimbursements ([________])
Net Monthly Childcare Costs $[________]
Parent 1's Share ([________]%) $[________]
Parent 2's Share ([________]%) $[________]

9. Parenting Time Offset

Parent Number of Overnights Per Year
Parent 1 [________]
Parent 2 [________]

Adjusted Monthly Child Support After Parenting Time Offset: $[________]


10. Deviation Factors

☐ No deviation requested

☐ Deviation requested -- Check all applicable factors:

  • ☐ Child has special needs
  • ☐ Child has extraordinary educational expenses
  • ☐ A parent is a minor
  • ☐ Child's residence income is below public assistance threshold
  • ☐ Extraordinary levels of jointly accumulated debt
  • ☐ Property awarded in lieu of support
  • ☐ Extraordinary medical expenses for a parent or dependent
  • ☐ Irregular or variable bonus income
  • ☐ Parent provides support for stepchildren or other dependents
  • ☐ Child earns extraordinary income
  • ☐ Court-ordered pre-judgment payments (taxes, mortgage)
  • ☐ Bankruptcy payments or discharged debt affecting funds
  • ☐ Parent provides substantial daytime care not reflected by overnights
  • ☐ Significant overnights with nonparent-recipient
  • ☐ Child care expenses exceed 50% of base support obligation
  • ☐ Calculated amount is under $20 and enforcement costs outweigh benefit
  • ☐ Other relevant factor: [________________________________]

Requested deviation amount: $[________]/month

Justification: [________________________________]


11. Duration and Modification

Support Commencement Date: [__/__/____]

Termination Events:

  • ☐ Child reaches age 18 (or 19.5 if still in high school)
  • ☐ Child becomes emancipated
  • ☐ Child marries
  • ☐ Child enters military active duty
  • ☐ Child dies
  • ☐ Other: [________________________________]

Incapacitation:

☐ Not applicable

☐ Payer is incapacitated and expected to be unable to pay for 180+ days -- obligation set to $0

Total Monthly Child Support Amount: $[________]

Components:

Component Amount ($)
Base Support [________]
Medical Support (ordinary) [________]
Health Insurance Allocation [________]
Childcare Allocation [________]
TOTAL $[________]

Payable by: ☐ Parent 1 ☐ Parent 2

Payment Method: ☐ Income Withholding ☐ Michigan State Disbursement Unit (MiSDU) ☐ Direct Payment


12. Certification and Signatures

I declare under penalty of perjury under the laws of the State of Michigan that the foregoing information is true and correct to the best of my knowledge and belief.

Parent 1:

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

Parent 2:

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

Attorney for Parent 1 (if applicable):

Signature: [________________________________]
Bar Number: [________________________________]
Date: [__/__/____]

Attorney for Parent 2 (if applicable):

Signature: [________________________________]
Bar Number: [________________________________]
Date: [__/__/____]


13. Sources and References

  • MCL 552.605 (Child Support Formula)
  • MCL 552.602 (Definitions)
  • MCL 552.517f (Modification)
  • MCL 552.605e (Deviation)
  • MCL 552.452 (Income Withholding)
  • MCL 722.712 (Medical Support)
  • Michigan Child Support Formula (MCSF) Manual
  • Michigan Friend of the Court Bureau: https://www.courts.michigan.gov/administration/offices/friend-of-the-court-bureau/
  • Michigan State Disbursement Unit: https://www.misdu.com

Michigan uniquely treats ordinary medical expenses (co-pays, deductibles) as an advance monthly reimbursement to the custodial parent. The state has specific "incapacitation" rules allowing support to be set to zero if the payer is unable to pay for 180+ days. Modification requires a threshold difference of 10% or $50/month, whichever is greater.

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About This Template

Family law covers the paperwork that shapes divorce, custody, child support, adoption, guardianship, and other family matters. These filings are emotional and high-stakes, and they also have to meet strict procedural rules for service, financial disclosure, and parenting plans. Clean, accurate paperwork keeps the focus on getting a workable outcome for the family instead of getting derailed by technical problems that delay hearings or force amended filings.

Important Notice

This template is provided for informational purposes. It is not legal advice. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.

Last updated: May 2026