Child Support Calculation Worksheet - Michigan

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

Michigan courts must apply the current Michigan Child Support Formula (MCSF) manual and supplement unless the court makes the findings required for a deviation. The current SCAO FOC 10 is the Uniform Child Support Order.
This template is only a preparation aid. Use the current formula materials and court-approved forms for the actual calculation, recommendation, and order.
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

Custodial Parent: ☐ Parent 1 ☐ Parent 2

Noncustodial Parent: ☐ Parent 1 ☐ Parent 2

2. Identification of Children

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

3. Gross Income Determination

3A. 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

Additional-child adjustment: Apply the separate calculation in 2025 MCSF § 2.08; do not enter it as a simple dollar-for-dollar deduction unless the current formula directs that treatment.

5. Net Income Calculation

Combined Net Monthly Income: $[________]

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

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

6. Base Support Obligation

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

7. Medical Support

7A. Health Insurance

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

7B. Ordinary Medical Expenses

7C. Additional Medical Expenses

Additional medical expenses generally include the support recipient's uninsured expenses above the ordered annual ordinary-medical amount and the support payer's uninsured medical expenses. Use the current MCSF and FOC 10 language for allocation and enforcement.

8. Childcare Costs

9. Parenting Time Offset

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 substantially all support for stepchildren or another child for whom the parent is legally responsible, and that child's parents cannot earn income or otherwise provide support
• ☐ 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
• ☐ A child in a nonparent-recipient's custody spends significant overnights with the payer, changing the parties' expenses
• ☐ Nonmodifiable spousal support was ordered between the parents before October 2004
• ☐ A parent's share of child care expenses exceeds 50% of that parent's 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: [__/__/____]

Order End Date / Condition:

• ☐ Support ends on the last day of the month the child turns 18, unless the order provides qualifying post-majority support.
• ☐ Post-majority support is requested because the child will regularly attend high school full time, reasonably expects to complete enough credits to graduate, and will reside full time with the support recipient or at an institution. The order may not extend beyond age 19 years and 6 months. Specify the last day of the ending month: [__/__/____].
• ☐ Other condition expressly stated in the controlling order: [________________________________]

Incapacitation:

☐ Not applicable

☐ A parent may qualify as incapacitated under 2025 MCSF § 4.02 because disability, mental incompetency, serious injury, debilitating illness, or incarceration prevents earning income and paying support. The court may set the obligation or allocated percentage to zero when income and assets are insufficient. Incapacitation is generally expected to last at least 180 days, but the court may grant relief for a shorter actual duration. Incarceration lasting 180 consecutive days or more is governed by MCL 552.517f and its notice, objection, and ability-to-pay rules.

Total Monthly Child Support Amount: $[________]

Components:

Payable by: ☐ Parent 1 ☐ Parent 2

Payment Route: ☐ Immediate income withholding and payment through the Michigan State Disbursement Unit (MiSDU) ☐ Court-approved alternative arrangement ☐ Other route expressly ordered by the court: [________________________________]

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 — Formula requirement and deviation findings
• MCL 552.602 — Definitions
• MCL 552.517 — Friend of the court review and modification
• MCL 552.517b — Review procedure and party motions
• MCL 552.517f — Incarceration-based abatement
• MCL 552.604 — Income withholding
• MCL 552.605a — Health care coverage
• MCL 552.605b — Post-majority high-school support
• 2025 Michigan Child Support Formula Manual
• 2025 Michigan Child Support Formula Supplement
• SCAO Form FOC 10 — Uniform Child Support Order (Rev. 11/25)
• Michigan Child Support Formula materials
• Michigan State Disbursement Unit

Under the 2025 MCSF, ordinary medical expenses are structured as an advance monthly reimbursement to the support recipient. Incapacitation relief is discretionary and condition-specific; incarceration of at least 180 consecutive days is separately governed by MCL 552.517f. After a friend of the court review, the minimum threshold that triggers a modification petition is 10% of the current support payment or $50 per month, whichever is greater.