Oregon Child Support Calculator

Child support calculator

Simple Child Support Calculator

For a simple and easy calculation of child support in Oregon, we recommend using the Oregon Child Support Guidelines Calculator.

The Oregon Child Support Guidelines Calculator is quite simple and easy to use. You can also expect it to be accurate and kept up to date in 2024.

For the state of Oregon, we advise against using a different calculator as the results may be innacurate or misleading.

Overnights Calculator for Oregon

According to Oregon child support guidelines, payment amounts depend on how many overnight stays a child has with each parent annually.

Use this overnights calculator to work out how many nights of care you provide.

Calculate annual overnight stays

Regular nights
Vacation nights each year*
183 overnight stays per year.
50.0% of parenting time.

* Vacation nights are all nights when the regular schedule does not apply.

How Child Support is Calculated in Oregon


Child support payments in Oregon are calculated using the income shares method. Payments depend on the combined incomes of the parents as well as the number of children. A larger combined income or more children usually means greater payments.

The amount paid or received by an individual parent also depends on income and parenting time percentages.

  • If your income percentage (your share of combined income) is higher than your care percentage (share of parenting time), you are probably the payer.
  • The receiver is normally the parent with a care percentage above their income percentage.

Oregonians paying the most child support have high incomes and rarely look after their children. On the flipside, the biggest receivers are parents who (a) work little (b) have their kids nearly all the time and (c) have a high earner as the other parent.

To calculate child support in Oregon, you need to know, among other possible factors, each parent’s gross monthly income, the amount of spousal support owed by or due to each parent, each parent’s union dues, and the average number of overnight stays with each parent annually.

Child support is determined through a calculation that follows legal guidelines. The guidelines take into account many factors, such as the incomes of the parents, other children the parents have to support, parenting-time schedules, and work-related day care costs for the children.


Oregonian child support guidelines apply to the whole state, including the cities of Portland, Salem, Eugene, Hillsboro, Gresham and Bend. Variations in support payments may be made by the agreement of parents or at the discretion of a judge presiding over your case.

Payment Calculators by State

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