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Chapter 9 Child Support Guidelines

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Rule 9.27 Child Support Guidelines Worksheet

Docket No:

I. Net Monthly Income of Petitioner (Name)

Select one:

Petitioner claims child/children as tax dependents.

A. Sources and Amounts of Annual Income:

$

$

plus/minus spousal support payments per rule 9.5(1) $

Total: $

B. Federal Tax Deduction:

Gross annual taxable income ($ untaxed) $

less ½ self employment (FICA) tax

less federal adjustments to income

less personal exemptions: self + (list number of dependents claimed)

less standard deduction

Net taxable income – federal $

Federal tax liability (from tax table)

Federal tax credit for dependent children +

Final federal tax liability

C. State Tax Deduction:

Gross annual taxable income $

less ½ self employment (FICA) tax

less state adjustments to income

less federal tax liability (adjusted for dependent tax credit)

less standard deduction

Net taxable income – state $

State tax liability (from tax table) $

less personal and dependent credits

plus school district surtax (%)

Final state tax liability

D. Social Security and Medicare Tax / Mandatory Pension Deduction:

Annual earned income $

Applicable rate (7.65% or 15.3%, as adjusted) x

Annual Social Security and Medicare tax liability or mandatory pension

E. Other Deductions (Annual):

1. Mandatory occupational license fees

2. Union dues

3. Actual medical support paid pursuant to court order or administrative order in another order for other children, not the pending matter

4. Prior obligation of child support actually paid pursuant to court or administrative order

5. Deduction for additional qualified dependents

6. If a custodial parent, Petitioner’s child care expenses (present action) $

less federal child care tax credit

less state child care tax credit

less third party reimbursements

Actual child care expenses, as defined in rule 9.11A $

Preliminary Net Annual Income $

Preliminary Average Monthly Income of Petitioner $

7. Monthly cash medical support ordered in this pending action

Adjusted Net Monthly Income of Petitioner $

II. Net Monthly Income of Respondent (Name)

Select one:

Respondent claims child/children as tax dependents.

A. Sources and Amounts of Annual Income:

$

$

plus/minus spousal support payments per rule 9.5(1) $

Total: $

B. Federal Tax Deduction:

Gross annual taxable income ($ untaxed) $

less ½ self employment (FICA) tax

less federal adjustments to income

less personal exemptions: self + (list number of dependents claimed)

less standard deduction

Net taxable income – federal $

Federal tax liability (from tax table)

Federal tax credit for dependent children +

Final federal tax liability

C. State Tax Deduction:

Gross annual taxable income $

less ½ self employment (FICA) tax

less state adjustments to income

less federal tax liability (adjusted for dependent tax credit)

less standard deduction

Net taxable income – state $

State tax liability (from tax table) $

less personal and dependent credits

plus school district surtax (%)

Final state tax liability

D. Social Security and Medicare Tax / Mandatory Pension Deduction:

Annual earned income $

Applicable rate (7.65% or 15.3%, as adjusted) x

Annual Social Security and Medicare tax liability or mandatory pension

E. Other Deductions (Annual):

1. Mandatory occupational license fees

2. Union dues

3. Actual medical support paid pursuant to court order or administrative order in another order for other children, not the pending matter

4. Prior obligation of child support actually paid pursuant to court or administrative order

5. Deduction for additional qualified dependents

6. If a custodial parent, Respondent’s child care expenses (present action) $

less federal child care tax credit

less state child care tax credit

less third party reimbursements

Actual child care expenses, as defined in rule 9.11A $

Preliminary Net Annual Income $

Preliminary Average Monthly Income of Respondent $

7. Monthly cash medical support ordered in this pending action

Adjusted Net Monthly Income of Respondent $

III. Calculation of the Guideline Amount of Support (If applicable.)

Custodial Parent (CP):

Noncustodial Parent (NCP):

A. Adjusted net monthly income $ + $ = $

B. Proportional share of income % + % = 100%

C. Number of children for whom support is sought

D. Basic support obligation using only NCP’s adjusted net monthly income

E. Basic support obligation using combined adjusted net monthly income

F. Each parent’s share of the basic support obligation using combined incomes $ $

G. NCP’s basic support obligation before health insurance $

H. Allowable child(ren)’s portion of health insurance premium $

I. Health insurance add-on or deduction from NCP’s obligation + / - $

J. Guideline amount of child support for NCP $

Guideline amount of cash medical support (if ordered) $

III. a. Extraordinary Visitation Credit (Complete only if noncustodial parent’s court-ordered visitation exceeds 127 overnights per year.)

K. NCP’s basic support obligation before health insurance $

L. Number of court-ordered visitation overnights with the noncustodial parent

M. Extraordinary visitation credit percentage %

N. Extraordinary visitation credit $

O. Guideline amount of child support after credit for extraordinary visitation $

III. b. Child Care Expense Variance under rule 9.11A (As agreed by the parties and approved or determined by the court.)

P. NCP’s guideline amount of child support $

Q. Amount of variance for child care expenses $

Adjusted amount of child support $

IV. Calculation of the Joint (Equally Shared) Physical Care Guideline Amount of Child Support (If applicable.)

Petitioner CP 1 $ + Respondent CP 2 $ = Combined $

B. Proportional share of income % % = 100%

C. Number of children for whom support is sought

D. Basic support obligation before health insurance $

E. Each parent’s basic primary care amount before health insurance $ $

F. Each parent’s share of joint physical care support $ $

G. Each parent’s joint physical care support obligation before health insurance $ $

H. Allowable child(ren)’s portion of health insurance premium $ $

I. Health insurance add-on to each parent’s obligation $ $

J. Guideline amount of child support $ $

K. Net amount of child support for joint physical care after offset $ $

V. Special Findings

A. Income imputed to Petitioner

Income imputed to Respondent

B. Estimated income of Petitioner

Estimated income of Respondent

C. Deviations made from Child Support Guidelines

D. Requested amount of child support $ per month

E. Split or divided physical care summary and offset

Guideline Amount of Child Support
Petitioner

$

Guideline Amount of Child Support
Respondent

$

Net Amount of Child Support
After Offset

$

VI. Changes in Child Support Obligation as Number of Children Entitled to Support Changes (For cases with multiple children based on present income and applicable guidelines calculation method.)

VI. a. Basic Obligation (If applicable.)

Number of children

NCP’s basic support obligation $ $ $ $ $

Health insurance add-on or deduction $ $ $ $ $

Extraordinary visitation credit $ $ $ $ $

Guideline amount of child support $ $ $ $ $

VI. b. Joint (Equally Shared) Physical Care Obligation (If applicable.)

Number of Children

Guideline amount of child support Petitioner $ $ $

Guideline amount of child support Respondent $ $ $

Net amount of child support for joint physical care after offset $ $ $

State of Iowa

ss:

County of

I certify under the penalty of perjury and pursuant to the laws of the state of Iowa that the preceding is true and correct.

Date:

(Signature)

(Printed name)

The undersigned attorney for (Petitioner/Respondent) hereby certifies that this Child Support Guidelines Worksheet was prepared by me or at my direction in good faith reliance upon information available to me at this time.

Date:

(Attorney signature)

Enter text✕

What the Chapter 9 Child Support Guidelines Are

The Chapter 9 Child Support Guidelines are a standardized set of rules used to calculate parental child support obligations under state family law and court practice. They typically define presumptive support amounts based on parents' incomes, parenting time, healthcare and childcare costs, and other allowable deductions. Courts apply the guidelines to promote consistency, predictability, and reasonable apportionment of child-related expenses while allowing judicial deviation when the guideline result would be unjust or inappropriate. These guidelines interact with federal and state statutes and may include worksheets, income definitions, and procedures for modification and enforcement.

Why the Chapter 9 Guidelines Matter in Support Cases

The Chapter 9 Child Support Guidelines provide a clear, legally grounded method for calculating support, reducing variability between courts and improving predictability for families. They help parties and practitioners identify presumptive amounts, document income and expenses, and evaluate requests for deviation or modification.

Why the Chapter 9 Guidelines Matter in Support Cases

Who Uses the Chapter 9 Child Support Guidelines

These guidelines are used by judges, family law attorneys, child support agencies, and parents in custody and support proceedings.

  • Family court judges applying statutory presumptive calculations during hearings and orders.
  • Child support agency staff preparing administrative orders, income determinations, and enforcement actions.
  • Attorneys and self-represented parties using worksheets to negotiate settlements or request deviations.

Consult the appropriate agency or court clerk to confirm which version of the worksheet and filing route your jurisdiction requires.

Essential Components of a Professional Chapter 9 Worksheet

A complete Chapter 9 worksheet documents income, allowable deductions, parenting time allocation, healthcare and childcare costs, deviation reasons, supporting evidence, and a signed certification for court review.

Income Calculation

Include gross wages, overtime, commissions, self-employment income, rental and investment income. Explain averaging method for variable income and attach paystubs, W-2s, 1099s, or tax returns to substantiate reported figures.

Allowable Deductions

List pretax deductions, retirement contributions required by law, union dues, health premiums paid for the child, and existing court-ordered obligations. Provide payroll stubs or receipts to verify each deduction claimed.

Parenting Time

Specify overnights or percentage split, note school holidays and travel, and explain how time-sharing affects costs. Attach custody orders, calendars, or mediator agreements used to determine allocation.

Healthcare & Childcare

Document premiums, out-of-pocket medical expenses, daycare or after-school care costs tied to employment, and provider invoices. Indicate whether costs are shared and include billing or insurance documentation.

Deviation Factors

Explain any reasons to deviate from the presumptive amount, such as extraordinary medical needs, significant travel costs, or disproportional parental income. Provide supporting evidence and a concise legal basis for deviation.

Certification & Signature

Each party must sign and date the worksheet, certify accuracy under penalty of perjury where required, and provide contact information. Include notary information if jurisdiction mandates notarization.

Step-by-Step: Completing the Chapter 9 Worksheet

Follow these sequential steps to prepare a complete Chapter 9 Child Support Guidelines worksheet for court or administrative review.

  • 01
    Gather Income: Collect gross income sources for each parent, including wages, benefits, and self-employment.
  • 02
    List Deductions: Enter allowable pretax deductions, health insurance, childcare, and union dues.
  • 03
    Allocate Parenting Time: Record visitation days and split custody schedules used to apportion costs.
  • 04
    Prepare Worksheet: Apply state formula, calculate presumptive amount, and note any deviation reasons.

Customizing and Submitting the Worksheet Online

Configure an electronic worksheet for secure e-filing, conditional fields, and automated calculations before submitting to the court or child support agency.

Field Configuration
Authentication Method Email link, SMS code, or ID verification (KBA)
Conditional Fields Show deduction lines only when applicable to filer.
Automated Calculations Built in formula applies state rate and rounds cents.
Delivery Method Upload to court e-file portal or send to agency.

Where to File and How Submission Works

Route signed Chapter 9 worksheets to the court clerk, local child support agency, or retain for private filing in accordance with local rules.

  • E-Filing: Submit via the court's electronic filing portal when available.
  • Agency Submission: Upload to state or county child support agency online systems.
  • Clerk Filing: File paper copies with the court clerk when required by jurisdiction.
  • Retention: Keep signed originals and proof of delivery for the record.

Digital Signing and eSubmission Requirements

Use a compliant eSignature platform supporting ESIGN and UETA, TLS 1.2/1.3, AES-256 at rest, and a detailed audit trail.

  • Minimum Security: TLS in transit, AES-256 at rest.
  • Audit Trail: Timestamps, IP, and signature events recorded.
  • Authentication Options: Email, SMS code, KBA or ID check.

Key Timing, Deadlines, and Processing Expectations

Deadlines vary by state; file promptly to avoid enforcement delays and permit timely income withholding or modification proceedings.

Initial Filing:

Submit with petition or administrative support request per local rules.

Service of Process:

Serve the other parent according to civil procedure timelines for your jurisdiction.

Income Documentation:

Provide recent pay stubs, tax returns, and bank statements for verification.

Modification Requests:

Petitions to modify require proof of substantial change in circumstances.

Administrative Review:

Agency processing times vary; expect 30–90 days in many states.

Consequences of Incorrect or Incomplete Worksheets

Incorrect Income: Under/over calculation risks wrong support.
Missing TIN: Can trigger 24% backup withholding.
Late Filing: Delays enforcement and withholding setup.
Perjury Risk: False statements may lead to sanctions.
Contempt: Court may hold noncompliant parent in contempt.
Administrative Fines: Agency penalties or income interception possible.

Required Information and Supporting Data

Names: Full legal names of both parents.
DOBs: Dates of birth for each child.
TINs: Social Security Numbers or TINs.
Income Proof: Pay stubs, W-2s, 1099s, tax returns.
Expenses: Health, childcare, education costs documented.
Parenting Plan: Custody schedule or time-sharing details.

Real-World Examples: Worksheets and eSign in Practice

Real-world examples show how standardized worksheets and e-signature workflows streamline support calculations and reduce administrative delay.

Optica Ventures

Optica Ventures used digital worksheets to reduce processing time and ensure consistent income reporting across cases.

  • Interface simplicity improved customer completion.
  • Brian Fitzgibbons, COO at Optica Ventures LLC, observed consistent completions and reported 'the interface is simple and easy-to-use for our team; more importantly, it is just as easy for our customers,' improving overall responsiveness.

Martin Properties

Martin Properties implemented online worksheets and mobile signing to finalize support-related agreements without in-person meetings or postal exchanges.

  • Mobile and offline signing supported field work.
  • Tim Martin, Founder of Martin Properties, said: 'I can process and execute all of these documents online with 100% compliance and built-in security. Whether on mobile or working offline, I can get forms back to their necessary parties efficiently.'

FAQs: Chapter 9 Child Support Guidelines

Answers to common questions about completing, filing, and e-signing Chapter 9 child support worksheets in U.S. jurisdictions.


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