Oregon Child Support Program

Child Support Guidelines Calculator

The Child Support Guidelines Calculator is a tool to help families estimate their monthly child support obligation based on the Oregon Child Support Guidelines: OAR 137-050-0700 through 137-050-0765. These guidelines are used in all child support cases to determine how much money each parent should contribute for the care of their child.

Things to know about the Child Support Guidelines Calculator:

  • The calculator provides an estimate and is not a guarantee of the amount of child support that will be ordered.
  • The Administrator, Administrative Law Judge, or Court has the final authority to determine the amount of a child support order.
  • The amount of time each parent spends with their children is factored into the calculation. The Parenting Time Calculator may be used to determine this percentage and also to help create a parenting plan.

Go to Guidelines Calculator

For more information on using the Child Support Guidelines Calculator, email calculatorquestions@doj.state.or.us or contact your local child support office.

For the expert user with thorough knowledge of the guidelines there are additional resources including a Child Support Guidelines Calculator in an Excel Workbook and an archive of expired calculators. Please see Child Support Guidelines and Calculations for more information.