Sole Custody in Colorado: How Decision-Making and Parenting Time Get Allocated

If you're searching for "sole custody in Colorado," you won't find that phrase in the state's statutes. Colorado replaced the traditional custody framework with the Allocation of Parental Responsibilities (APR), and the concepts of sole and joint custody map differently than you might expect.

What People Mean When They Say "Sole Custody"

When most parents say they want "sole custody," they typically want one or both of these outcomes:

Sole decision-making — the authority to make major decisions about the child's education, healthcare, religious upbringing, and extracurricular activities without needing the other parent's agreement.

Primary parenting time — the child lives primarily with one parent, with the other parent having a limited schedule (alternating weekends, for example).

Colorado treats these as separate allocations. You can have joint decision-making with unequal parenting time, or sole decision-making with a 50/50 schedule. They're independent variables.

When Courts Grant Sole Decision-Making

Colorado courts generally prefer joint decision-making when parents can cooperate. But sole decision-making gets allocated in several situations:

Domestic violence or abuse. Under C.R.S. § 14-10-124(1.5)(a)(III.5), if the court finds domestic abuse or child neglect by a preponderance of the evidence, there's a legal presumption against joint decision-making when the victim-parent objects.

Inability to communicate. If parents have demonstrated a complete inability to make joint decisions — chronic disagreements about school enrollment, refusal to discuss medical treatment, deliberate obstruction — the court may grant sole decision-making to end the gridlock.

One parent's disengagement. When one parent has been uninvolved in major decisions during the marriage or relationship, the court may formalize that pattern.

Substance abuse or mental health issues. When a parent's judgment is impaired by untreated addiction or mental health conditions that affect their capacity to make sound decisions for the child.

Courts can also split decision-making by category. One parent might receive sole authority over education while healthcare decisions remain joint. This targeted approach gives the court flexibility to address specific areas of conflict without a blanket allocation.

What About Joint Custody?

Joint decision-making in Colorado means both parents must agree on major decisions. Day-to-day choices — what to have for dinner, what TV shows to watch, when to go to bed — belong to whichever parent has the child at the time.

The three additional factors courts consider for joint decision-making are:

• Can the parents cooperate on major issues?
• Does their track record show effective joint decision-making?
• Will joint allocation promote more contact between the child and both parents?

If you're requesting joint decision-making, be prepared to demonstrate that you and the other parent can communicate constructively about the child's needs — even if you disagree on other aspects of the divorce.

Primary Parenting Time vs. Equal Parenting Time

On the parenting time side, Colorado has no presumption of equal (50/50) time. The court evaluates the nine best-interests factors to determine the schedule that serves the child. In practice, many Colorado courts do favor substantial time with both parents when circumstances allow — but the specific allocation depends on the family's geography, work schedules, the child's age, and the parents' track records.

A parent with 70% or more of the overnights is often referred to as the "primary residential parent," though Colorado statute doesn't use this term. Under the 2026 child support guidelines, the difference between a 50/50 and a 70/30 split has clear financial implications because of the graduated parenting-time credit.

Building Your Case

Whether you're seeking sole decision-making or primary parenting time, your case should be grounded in the specific statutory factors, not emotional arguments. Document your involvement in your child's life, your ability to make sound decisions, and — if applicable — specific instances where joint decision-making broke down or the child's safety was compromised.

The Colorado Child Custody & Parenting Plan Guide includes worksheets for organizing your position on both decision-making allocation and parenting time, mapped to the nine best-interests factors that Colorado courts actually evaluate.

See more Colorado guides →