Sole Custody Alberta: How to Get Full Custody of Your Child

You want your child to live with you full-time. Maybe you have safety concerns about the other parent. Maybe communication has broken down completely. Whatever the reason, you're searching for "sole custody" — and the first thing to know is that Alberta law no longer uses that term.

The Divorce Act and Alberta's Family Law Act replaced "sole custody" with "sole decision-making responsibility." The concept is similar, but the legal framework is different — and understanding the distinction matters if you're going to make a successful application.

What "Full Custody" Actually Means Now

In modern Alberta family law, there are two separate things people mean when they say "full custody":

Sole decision-making responsibility means one parent has exclusive authority over major decisions — education, non-emergency healthcare, religious upbringing, and significant extracurricular activities. The other parent doesn't get a veto on these choices.

Primary parenting time means the child lives with one parent for the majority of the time (more than 60%). The other parent has scheduled parenting time — weekends, mid-week visits, holidays — but the child's primary home is with one parent.

You can have sole decision-making without primary parenting time, and vice versa. A parent might have the child 50/50 but hold sole authority over medical decisions because the other parent has a pattern of refusing necessary treatment. The court treats these as independent determinations.

When Courts Grant Sole Decision-Making

Alberta courts start with a presumption that joint decision-making serves children's best interests. Sole decision-making is the exception, not the default. To get it, you need to demonstrate that joint decision-making is unworkable or harmful.

Situations where courts have granted sole decision-making:

Family violence. A documented history of physical, emotional, or psychological abuse — particularly coercive and controlling behaviour — is the strongest basis. Courts evaluate the nature, frequency, and severity of the violence and whether it creates a pattern that makes shared decision-making dangerous.

Substance abuse. Active, untreated addiction that impairs a parent's judgment and reliability. A parent in sustained recovery may still retain joint decision-making.

Complete communication breakdown. Not "we disagree on things" — every co-parent disagrees. The court looks for a total inability to communicate about the child's needs, where every interaction escalates into conflict that harms the child.

Parental alienation or sabotage. A parent who actively undermines the child's relationship with the other parent, coaches the child to reject the other parent, or refuses to follow court orders.

Neglect or abandonment. A parent who has been absent from the child's life for an extended period, failed to exercise parenting time, or demonstrated a lack of interest in the child's welfare.

The Best-Interests Analysis

Every custody determination in Alberta runs through the best-interests-of-the-child test under Section 18 of the Family Law Act. The court considers:

• The child's physical, emotional, and psychological safety
• The history of care — who was the primary caregiver during the relationship
• Each parent's willingness to support the child's relationship with the other parent
• The child's views and preferences (weighted by age and maturity)
• The child's cultural, linguistic, and religious heritage
• Any history of family violence

Note what's absent from this list: parental income, the size of the home, or who's the "better" parent in a general sense. Courts focus on safety, stability, and the child's existing attachments.

Building Your Case

If you're seeking sole decision-making, document everything:

• Keep a communication log showing patterns of conflict, non-response, or unreasonable behaviour
• Save text messages and emails (Alberta courts accept digital communications as evidence)
• Obtain police reports, protection orders, or hospital records related to family violence
• Get letters from the child's school, pediatrician, or therapist about the child's wellbeing and each parent's involvement

Don't badmouth the other parent to the child, withhold parenting time without a court order, or make unilateral decisions about the child's life. These actions undermine your case. Courts look favourably on the parent who demonstrates willingness to co-parent — even when seeking sole authority.

The Process

Under the Family Focused Protocol, you still need to complete the pre-court steps (PAS course, ADR attempt, financial disclosure). If there's immediate danger, file for an emergency waiver. Otherwise, your request for sole decision-making goes into your initial application and is addressed at the MIT Conference.

The Alberta Child Custody & Parenting Plan Guide includes worksheets for documenting your parenting history, preparing for the best-interests analysis, and drafting your proposed parenting arrangement — whether you're seeking sole or joint decision-making.

A Realistic Expectation

Courts rarely grant sole decision-making across all categories. A more common outcome is a hybrid: sole authority over specific areas (e.g., healthcare) where one parent has demonstrated better judgment, with joint decision-making for other areas. Courts also frequently pair reduced decision-making authority with a robust parenting time schedule — because the right to make decisions and the right to spend time with your child are legally independent.

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