Michigan Child Custody in Divorce: 12 Best Interest Factors and 50/50 Custody

Custody is usually the most contested and emotionally charged issue in a Michigan divorce. Unlike property division — which follows a framework of equitable factors — custody decisions hinge on a specific statutory checklist: the 12 Best Interest of the Child factors. Every custody determination in Michigan, whether negotiated or decided at trial, must address these factors.

Understanding what the court evaluates gives you a realistic picture of what to expect and how to prepare — whether you're aiming for 50/50 joint custody or primary physical custody.

Michigan's 12 Best Interest Factors

Under the Child Custody Act (MCL 722.23), the court must evaluate and make specific findings on each of these factors before issuing a custody order:

1. Love, affection, and emotional ties — the existing emotional bond between each parent and the child
2. Capacity to provide love, affection, and guidance — each parent's ability to continue the education and raising of the child
3. Capacity to provide food, clothing, and medical care — the practical ability to meet the child's physical needs
4. Length of time in a stable environment — how long the child has lived in a stable, satisfactory environment and the desirability of maintaining that continuity
5. Permanence of the family unit — the permanence as a family unit of the proposed custodial home
6. Moral fitness — each parent's moral fitness, though this is evaluated only as it directly affects the parent-child relationship
7. Mental and physical health — each parent's mental and physical health
8. Home, school, and community record — the child's adjustment to their current home, school, and community
9. Reasonable preference of the child — if the child is old enough to express a preference (typically age 6 and up, with greater weight given as the child matures)
10. Willingness to facilitate the relationship with the other parent — whether each parent will encourage a close relationship between the child and the other parent. This factor carries significant weight.
11. Domestic violence — whether there has been domestic violence, regardless of whether it was directed at the child
12. Any other relevant factor — a catch-all that allows the court to consider circumstances specific to the family

No single factor is automatically determinative. The court weighs all 12 together, and the relative importance of each factor depends on the specific facts of your case.

Joint Custody vs. Sole Custody

Michigan recognizes two types of custody:

Legal custody determines who makes major decisions about the child's education, healthcare, and religious upbringing. Joint legal custody means both parents share these decisions. Sole legal custody means one parent has exclusive decision-making authority.

Physical custody determines where the child lives. Joint physical custody means the child splits time between both homes. Sole physical custody means the child primarily lives with one parent while the other has parenting time.

Michigan courts presume that joint custody (both legal and physical) is in the child's best interest when the parents agree to it. When the parents disagree, there is no presumption — the court must evaluate the 12 Best Interest factors and determine what arrangement serves the child.

Is 50/50 Custody the Default in Michigan?

No. Michigan does not have a statutory presumption of equal parenting time. A true 50/50 physical custody arrangement (alternating weeks, 2-2-3 schedules, or similar splits) is one possible outcome, but the court isn't required to start from a 50/50 baseline and adjust.

That said, 50/50 custody arrangements have become more common in Michigan as courts increasingly recognize the value of both parents being actively involved in their children's lives. Factor 10 — willingness to facilitate the relationship with the other parent — is particularly relevant here. A parent who demonstrates genuine commitment to co-parenting and doesn't try to limit the other parent's involvement often has a stronger position.

Practical considerations that affect whether 50/50 is workable include:

• Geographic proximity — parents living 45 minutes apart make weekday exchanges during the school year difficult
• Work schedules — a parent who works night shifts or travels frequently may struggle with equal overnights
• Child's age — very young children (under 3) may benefit from a primary home with frequent shorter visits to the other parent, transitioning to more equal time as they get older
• Quality of co-parenting relationship — high-conflict parents who can't communicate may find 50/50 creates more instability than a clear primary/visitation structure

The Friend of the Court's Role

The Friend of the Court office evaluates custody in every Michigan divorce involving minor children. After filing, the FOC schedules a Facilitative and Information Gathering Conference (FIGC) — sometimes called a conciliation meeting — where a FOC conciliator meets with both parents to try to reach agreement on custody, parenting time, and child support.

If the parents can't agree, the FOC conciliator issues a Recommended Order based on their evaluation of the Best Interest factors. This recommended order goes to the judge, who signs it into effect. Either parent has 21 days from the date of mailing to file written objections and request a hearing.

In contested cases, the FOC may also conduct a custody investigation — interviewing the parents, visiting both homes, talking to teachers and doctors, and sometimes interviewing the children. The resulting custody evaluation report carries significant weight with the judge, though it's not binding.

Preparing Your Case

Whether you're negotiating with your spouse or preparing for a contested custody hearing, document how you meet each of the 12 Best Interest factors. Concrete evidence matters — school involvement records, medical appointment attendance, stable housing, involvement in extracurricular activities.

The Michigan Divorce Filing Process Guide includes a Best Interest factors worksheet that helps you organize your evidence for each factor, along with the FOC conference timeline, parenting time templates, and the full custody evaluation process — structured to help you prepare your strongest case.

See more Michigan guides →