Quick answer: In Oregon, interest on a money judgment is 9% a year, simple, from entry unless the judgment says otherwise. A support payment becomes delinquent if not paid in full within one month of its due date. Licenses, driver licenses and hunting and fishing licenses can be suspended when arrears reach the greater of three months of support or $2,500.
This Oregon child support arrears calculator adds up the unpaid installments and simple interest at the rate you enter under ORS 82.010, and flags the delinquency, license and passport thresholds. The state’s program adds interest only on request with an accounting, so treat the figure as a scenario.
Oregon child support arrears and interest at a glance
| Rule | What Oregon says |
|---|---|
| Interest on judgments | 9% a year, simple, accruing from entry unless the judgment says otherwise; interest accruing from entry also accrues on earlier interest (ORS 82.010(2)) |
| Delinquency | Support is delinquent only if not paid in full within one month of the due date; this does not apply to interest (ORS 25.166(4)) |
| Withholding | Orders must include income withholding; it starts when you fail to pay at least a month of support (25.378) |
| Lien | A judgment for unpaid support is a lien on personal property, and the liability includes interest and costs (25.670) |
| Licenses | Arrears of the greater of three months of support or $2,500 with no agreement, or failure to comply with one (25.750) |
| After a modification | Support accrued before service of the motion is final (107.135(7)) |
How do child support arrears work in Oregon?
- Interest and method. See the Oregon child support interest rate.
- Collection. See what happens if you do not pay child support in Oregon.
- Time limits and forgiveness. See whether Oregon child support arrears expire or can be forgiven.
What does this arrears calculator check?
You enter the monthly support, the number of installments unpaid and the annual rate (9% by default). The calculator adds simple interest from each due date and flags the one-month delinquency rule, the license threshold and the $2,500 passport line. It does not model partial payments. To change the amount going forward, see the Oregon child support modification calculator, and for when the obligation stops, the Oregon child support end date calculator.
Frequently asked questions
Does Oregon charge interest on child support arrears?
Interest on a money judgment is 9% a year, simple. The state program adds interest only when a party requests it with an accounting.
What is the Oregon interest rate on child support arrears?
Nine percent a year under ORS 82.010.
Is Oregon judgment interest simple or compound?
Simple, unless a contract provides otherwise; interest that accrued before entry also earns interest after entry.
When can Oregon suspend a license for unpaid child support?
When arrears equal the greater of three months of support or $2,500 and there is no agreement or it is not being followed.
When is an Oregon child support payment delinquent?
If not paid in full within one month of its due date.