Child Support Calculation Worksheet
IMPORTANT: THIS IS A PREPARATION GUIDE — NOT THE OFFICIAL COURT WORKSHEET
Oregon requires the use of the official Child Support Worksheet (CSF 02 0909) or the Oregon DOJ Guidelines Calculator output 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 calculator is available at https://justice.oregon.gov/guidelines/.
Do not file this document directly with the court.
CHILD SUPPORT CALCULATION WORKSHEET
State of Oregon
Court: [________________________________]
County: [________________________________]
Case No.: [________________________________]
Judge/Administrative Law Judge: [________________________________]
TABLE OF CONTENTS
- Party and Children Identification
- Calculation Model
- Gross Income Determination
- Adjustments to Income
- Child Support Obligation Formula
- Healthcare Expenses
- Childcare Expenses
- Extraordinary Expenses
- Deviation Factors
- Duration and Termination
- State-Specific Notes
1. PARTY AND CHILDREN IDENTIFICATION
Parent A:
- Full Name: [________________________________]
- Relationship: ☐ Mother ☐ Father ☐ Alleged Father
- Employer: [________________________________]
Parent B:
- Full Name: [________________________________]
- Relationship: ☐ Mother ☐ Father ☐ Alleged Father
- Employer: [________________________________]
Caretaker (if applicable): [________________________________]
Children Subject to This Order:
| Child Name | Date of Birth | Age | Included |
|---|---|---|---|
| [____________________] | [__/__/____] | [__] | ☐ Minor ☐ Child Attending School |
| [____________________] | [__/__/____] | [__] | ☐ Minor ☐ Child Attending School |
| [____________________] | [__/__/____] | [__] | ☐ Minor ☐ Child Attending School |
2. CALCULATION MODEL
Model: Oregon Income-Sharing Formula per ORS 25.275
Number of Joint Children: [____]
3. GROSS INCOME DETERMINATION
| Income Source | Parent A (Monthly) | Parent B (Monthly) |
|---|---|---|
| Wages/Salary | $[________] | $[________] |
| Self-Employment Income | $[________] | $[________] |
| Bonuses/Commissions | $[________] | $[________] |
| Social Security Benefits | $[________] | $[________] |
| Pensions/Retirement | $[________] | $[________] |
| Unemployment/Workers' Comp | $[________] | $[________] |
| Other Income | $[________] | $[________] |
| Total Monthly Gross Income | $[________] | $[________] |
4. ADJUSTMENTS TO INCOME
| Adjustment | Parent A (Monthly) | Parent B (Monthly) |
|---|---|---|
| Spousal Support Received (add) | +$[________] | +$[________] |
| Spousal Support Owed (subtract) | -$[________] | -$[________] |
| Union Dues | -$[________] | -$[________] |
| Adjusted Gross Income | $[________] | $[________] |
Number of Non-Joint Children:
- Parent A: [____]
- Parent B: [____]
5. CHILD SUPPORT OBLIGATION FORMULA
Parenting Time (Annual Overnights):
- Parent A: [____] overnights
- Parent B: [____] overnights
Step 1: Enter adjusted gross incomes into Oregon formula
Step 2: Apply non-joint children credit if applicable
Step 3: Calculate basic support obligation using Oregon schedule
Step 4: Apply parenting time adjustment
Presumptive Child Support Amount: $[________] per month
Obligor: ☐ Parent A ☐ Parent B
6. HEALTHCARE EXPENSES
| Item | Parent A | Parent B |
|---|---|---|
| Parent's Own Health Care Coverage Cost | $[________] | $[________] |
| Health Care Coverage Available for Children? | ☐ Yes ☐ No | ☐ Yes ☐ No |
| Out-of-Pocket Cost to Enroll Joint Children | $[________] | $[________] |
7. CHILDCARE EXPENSES
| Item | Parent A | Parent B | Caretaker |
|---|---|---|---|
| Child Care Costs (children under 13 or disabled) | $[________] | $[________] | $[________] |
8. EXTRAORDINARY EXPENSES
| Expense Description | Monthly Amount | Parent A Share | Parent B Share |
|---|---|---|---|
| [____________________] | $[________] | $[________] | $[________] |
| [____________________] | $[________] | $[________] | $[________] |
Social Security or Veterans' Benefits Paid to Child:
- From Parent A's record: $[________]
- From Parent B's record: $[________]
9. DEVIATION FACTORS
☐ No deviation requested
☐ Deviation requested based on:
☐ Income of parties' other household members
☐ Child's special needs or extraordinary expenses
☐ Net income available to each party after taxes
☐ Parent voluntarily not working or underemployed
☐ Assets available to either parent
☐ Other: [________________________________]
Deviation Amount: $[________] per month
Written Justification: [________________________________]
10. DURATION AND TERMINATION
Child support continues until the earliest of:
- Child reaches age 18
- Child is no longer attending school (if "child attending school" provisions apply under ORS 107.108)
- Child marries or is emancipated
- Further order of the court or administrator
11. STATE-SPECIFIC NOTES
- Official Calculator: Use the Oregon DOJ Guidelines Calculator at justice.oregon.gov/guidelines/.
- Administrative Process: Oregon allows administrative establishment and modification of child support through the Division of Child Support (ORS 25.501–25.556).
- Income Imputation: Potential income may be used when a parent is voluntarily unemployed or underemployed.
- Self-Support Reserve: Oregon guidelines include provisions ensuring the obligor retains sufficient income for basic needs.
- Guideline Rules with Commentary: Available at the Oregon DOJ website (OAR 137-050).
SUMMARY OF CHILD SUPPORT OBLIGATION
| Component | Amount |
|---|---|
| Presumptive Child Support | $[________] |
| Health Care Coverage Adjustment | $[________] |
| Childcare Adjustment | $[________] |
| Deviation (if applicable) | $[________] |
| Total Monthly Obligation | $[________] |
Paid by [________________] to [________________]: $[________] per month
Prepared By: [________________________________]
Date: [__/__/____]
OSB No.: [________]
Sources and References:
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
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