Child Support Calculation Worksheet - Washington

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

Washington requires the use of the official WSCSS Worksheets (Washington State Child Support Schedule Worksheets) 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.courts.wa.gov/forms/?fa=forms.contribute&formID=73.
Do not file this document directly with the court.

CHILD SUPPORT CALCULATION WORKSHEET

State of Washington

Court: [________________________________] Superior Court
County: [________________________________]
Case No.: [________________________________]
Judge/Commissioner: [________________________________]

TABLE OF CONTENTS

1. Party and Children Identification
2. Calculation Model
3. Gross Income Determination
4. Adjustments to Income
5. Child Support Obligation Formula
6. Healthcare Expenses
7. Childcare Expenses
8. Extraordinary Expenses
9. Deviation Factors
10. Duration and Termination
11. State-Specific Notes

1. PARTY AND CHILDREN IDENTIFICATION

Parent (Petitioner):

• Full Name: [________________________________]
• Employer: [________________________________]

Parent (Respondent):

• Full Name: [________________________________]
• Employer: [________________________________]

Children Subject to This Order:

Number of Children: [____]

2. CALCULATION MODEL

Model: Income Shares per RCW 26.19
Number of Children: [____]

3. GROSS INCOME DETERMINATION

4. ADJUSTMENTS TO INCOME

5. CHILD SUPPORT OBLIGATION FORMULA

Step 1: Combined Monthly Net Income: $[________]

Step 2: Basic Support Obligation from Economic Table (RCW 26.19.071) for [__] children: $[________]

Step 3: Each Parent's Percentage:

• Petitioner: $[________] / $[________] = [____]%
• Respondent: $[________] / $[________] = [____]%

Step 4: Each Parent's Share:

• Petitioner: $[________] x [____]% = $[________]
• Respondent: $[________] x [____]% = $[________]

Step 5: Standard Calculation (before adjustments): $[________]

6. HEALTHCARE EXPENSES

☐ Each parent pays proportional share of uninsured expenses: Petitioner [____]% / Respondent [____]%

7. CHILDCARE EXPENSES

8. EXTRAORDINARY EXPENSES

9. DEVIATION FACTORS

☐ No deviation requested
☐ Deviation requested based on:

☐ Sources of income and tax planning
☐ Non-recurring income
☐ Residential schedule (significant time with both parents)
☐ Children from other relationships
☐ Debt and high expenses
☐ Residential payments exceeding 30% of net income
☐ Income of new spouse reducing basic living expenses
☐ Extraordinary income of the child
☐ Tax benefits
☐ Other: [________________________________]

Deviation Amount: $[________] per month
Written Justification: [________________________________]

10. DURATION AND TERMINATION

Child support continues until the earliest of:

• Child reaches age 18
• Child reaches age 18 while still attending high school (continues to end of school year or age 19)
• Child marries or is emancipated
• Child enters military service
• Further order of the court

☐ Post-secondary support requested per RCW 26.19.090

11. STATE-SPECIFIC NOTES

• Economic Table Cap: For combined net income above the Economic Table range, the court exercises discretion per RCW 26.19.020.
• Self-Support Reserve: RCW 26.19.065(2)(c) — the court shall not set support below the self-support reserve of the obligor.
• Income Imputation: RCW 26.19.035(4) — income may be imputed to a voluntarily unemployed or underemployed parent.
• Quadrennial Review: RCW 26.19.025 requires review of child support guidelines every four years.
• Official Worksheets: The Washington Pattern Forms (WPF) child support worksheets must be filed with all support orders.
• No State Income Tax: Washington has no state income tax; however, it has a capital gains tax.

SUMMARY OF CHILD SUPPORT OBLIGATION

Net Transfer Amount: $[________] per month from [________________] to [________________]

Prepared By: [________________________________]
Date: [__/__/____]
WSBA No.: [________]

Sources and References:

• RCW 26.19 — Child Support Schedule
• Washington Courts — Child Support
• WA DSHS Division of Child Support