How Is Child Custody Determined in Oregon?

When parents separate or divorce in Oregon, one of the most consequential decisions involves the custody of their children. Oregon law draws an important distinction that many parents don't initially realize: legal custody and parenting time are separate and distinct concepts, governed by different rules and carrying different legal consequences.

Legal Custody vs. Parenting Time

Legal custody refers to the right and responsibility to make major decisions about a child's life – including decisions about education, healthcare, religious upbringing, and extracurricular activities. It is about decision-making authority, not necessarily about where the child lives.

Parenting time (sometimes called visitation) refers to the actual schedule of when each parent is physically with the child. A parent can have substantial parenting time with a child even when the other parent holds sole legal custody.

This distinction matters enormously in practice. A parent with sole legal custody has final say on major decisions, even if the other parent disagrees. Parents with joint legal custody must make those decisions together – which can work well when co-parenting is cooperative, but can create significant conflict when it isn't.

Joint Custody Requires Agreement

Under ORS 107.169, Oregon courts may award joint custody only if both parties agree to it. If either parent objects to joint custody, the court cannot impose it. Instead, the court must award sole legal custody to one parent.

This is a meaningful rule. It reflects the legislature's recognition that joint custody only functions when parents can communicate and cooperate. Where one parent is unwilling – for any reason – a court-ordered joint custody arrangement would likely create more conflict than it resolves. As a result, if you are headed toward a contested custody hearing, the outcome will be sole custody to one parent, not joint custody.

Joint custody arrangements can and do work well when both parents are committed to them. But they must be entered into voluntarily, and they require ongoing cooperation to be effective.

How Courts Determine Custody: The ORS 107.137 Factors

When a court must decide which parent receives sole legal custody – or when evaluating any custody arrangement – it applies the factors set out in ORS 107.137. The overarching standard is the best interests of the child. The statute directs courts to consider:

• (a) The emotional ties between the child and other family members. This includes the child's bond with each parent, siblings, and other significant people in the child's life.
• (b) The interest of the parties in and attitude toward the child. Courts look at each parent's demonstrated involvement, engagement, and commitment to the child's wellbeing.
• (c) The desirability of continuing an existing relationship. Stability and continuity matter. Courts are generally reluctant to disrupt a relationship that is working well for the child.
• (d) The abuse of one parent by the other. If a court finds that one parent has abused the other, there is a rebuttable presumption that it is not in the child's best interest to award custody to the abusive parent. This factor carries significant weight and is defined by reference to Oregon's Family Abuse Prevention Act.
• (e) The preference for the primary caregiver of the child. If the court identifies one parent as the primary caregiver – the parent who has historically handled the day-to-day care of the child – that parent receives a preference in the custody determination, provided they are a fit parent. As the Oregon Court of Appeals reaffirmed in Estens v. Wells, this designation is not optional; courts are required to make it.
• (f) The willingness and ability of each parent to facilitate and support the other parent's close and continuing relationship with the child. A parent who is likely to interfere with the other parent's relationship – through gatekeeping, alienation, or obstruction – will be viewed unfavorably by the court.

Courts may also consider the reasonable preference of the child, if the child is of sufficient age and maturity to express a meaningful preference. This is a discretionary consideration, not a determinative one.

No single factor is automatically dispositive. Courts weigh all relevant circumstances together, and the analysis is highly fact-specific. The same facts can lead to different outcomes depending on how they are presented, documented, and argued.

What This Means for Your Case

If you are going through a separation or divorce involving children, understanding these rules early can help you make better decisions throughout the process. The parenting patterns established during a separation – who is handling drop-offs, medical appointments, school communication – can become evidence in a custody proceeding. How you communicate with the other parent, and whether you support that parent's relationship with the child, will also be scrutinized.

For more on how Oregon courts handle related issues, see our posts on custody modification and the primary caregiver preference and protective orders under the Family Abuse Prevention Act.