Oregon Judicial Jurisdiction (OR)

Oregon Child Support Calculator

Estimate child support under OAR 137-050-0700 through 137-050-0765. Calculate baseline support, parenting time overnights, health insurance credits, and work-related childcare costs.

Legal Model: Income Shares Model
Updated for 2026 Guidelines

1. Enter Case Information

OR Rules
$ /mo
Gross or net monthly earnings before deductions
$ /mo
Included in combined guideline income
nights/yr
365 nights per year total (182.5 = 50/50 equal custody)
Common Schedule Presets:
$ /mo
Incremental monthly premium to cover the children
$ /mo
Monthly out-of-pocket work-related daycare costs
Children from prior or subsequent relationships not part of this order

Estimated Child Support

OR Estimate
Total Estimated Obligation
$0
per month
Important Notice: This figure is a computational estimate based on OAR 137-050-0700 through 137-050-0765. Final child support orders may deviate based on judicial discretion, extraordinary expenses, or tax adjustments.
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Understanding Oregon Child Support Guidelines

Oregon operates an Income Shares model under OAR 137-050-0700. The Oregon formula incorporates gross incomes, union dues, health insurance, childcare, and parenting time overnights.

Shared Custody & Overnights in Oregon

Oregon applies a progressive Parenting Time Credit formula based on total overnights starting at 25% of the time (92 nights), adjusting basic support smoothly up to equal shared care.

Calculate Your Exact Overnights →

Official Court Worksheets & Forms

Family court filings in Oregon require completing: Oregon Child Support Guidelines Worksheet. Review official forms before filing.

View State Worksheets Directory →

Worked Calculation Example: Standard Oregon Scenario

Here is a realistic line-by-line computation for two parents in Oregon raising 2 children:

Guideline Worksheet Line Item Parent A (Paying) Parent B (Receiving) Combined / Order Total
Monthly Guideline Income $5400 $3800 $9200
Parental Income Proportion 59% 41% 100%
Basic Child Support Schedule Obligation - - $1530 /mo
Work-Related Childcare Cost - - +$420 /mo
Health & Dental Insurance Premium - - +$220 /mo
Total Combined Child Financial Needs - - $2170 /mo
Final Estimated Monthly Support Order Paid by Parent A to Parent B $1190 /month

Frequently Asked Questions in Oregon

Key legal questions regarding child support establishment, modifications, and enforcement in Oregon.

How does Oregon calculate the parenting time credit? +

Oregon uses an algebraic formula under OAR 137-050-0730 that grants a progressive credit for parenting time between 25% (92 overnights) and 50% (182.5 overnights).

What is the Oregon Social Security offset? +

If a child receives Social Security dependent or survivor benefits due to the obligor's disability or retirement, that benefit credits directly against the monthly child support order.

Are union dues deductible in Oregon? +

Yes. Mandatory union dues are deducted from gross monthly income before calculating the guideline support obligation.

Next Useful Steps for Your Case

Take the next step in preparing your family financial documentation:

Convert Irregular Income

Standardize hourly wages, seasonal overtime, or commissions into monthly gross figures.

Launch Income Tool →

Explore 50/50 Custody

See how equal time sharing and reciprocal guidelines impact final transfer payments.

50/50 Custody Tool →

Download Official Worksheets

Find the exact PDF court forms and financial affidavits required by your court clerk.

Court Worksheets Directory →