Michigan Family Law Explained: Divorce, Custody, Support & More

TL;DR: Michigan family law covers everything from no-fault divorce and custody battles to child support formulas and protective orders. This guide walks you through the core rules — statutes, deadlines, and key factors — so you know what to expect before you step into a courtroom. Every family situation is different, so after you read this, talk to us and get matched with a vetted Michigan family law attorney in minutes.

If you want to end your marriage in Michigan, you do not have to prove that your spouse did anything wrong. Michigan is a pure no-fault divorce state, meaning the only legal ground for divorce is that the marriage has broken down beyond repair — no evidence of adultery, abandonment, or cruelty is required.

Under MCL § 552.6, the filing spouse must allege that the marriage relationship has broken down to the extent that its objects have been destroyed and there is no reasonable likelihood it can be preserved. That is the entire grounds statement — nothing more needs to be said in the complaint.

That said, fault does not vanish entirely from the picture. A spouse's misconduct — such as adultery or abuse — can still influence how the judge divides marital property and whether spousal support is awarded. So while fault will not stop a divorce, it can shape the financial outcome.

Before Michigan courts have jurisdiction over your divorce, you must satisfy two residency rules. Both apply on the date you file your complaint:

• State residency: At least one spouse must have lived in Michigan for a minimum of 180 days immediately before filing (MCL § 552.9).
• County residency: That same spouse must also have lived in the county where they intend to file for at least 10 days before filing.

Once the complaint is filed, Michigan imposes a mandatory waiting period before the divorce can be finalized — and a judge cannot shorten it by agreement. For divorces without minor children, the waiting period is 60 days. When minor children are involved, that waiting period extends to 180 days, giving parents and the court time to work out custody, parenting time, and child support arrangements.

A limited exception to the 10-day county rule exists when the other spouse was born in or is a citizen of a country other than the United States and there is a credible risk of a child being taken out of the country. In that situation, you can file in any Michigan county regardless of how long you have lived there.

Michigan is an equitable distribution state. That means the court divides marital property fairly between spouses — but 'fairly' does not automatically mean 50/50. The governing statutes include MCL § 552.19 and MCL § 552.401.

The first step is classifying assets as marital or separate. Marital property generally includes everything acquired during the marriage — real estate, vehicles, bank accounts, retirement funds, and business interests — regardless of whose name is on the title. Separate property, such as assets owned before the marriage, individual inheritances, and individual gifts, is generally excluded from division, provided it was not mixed with marital funds.

When dividing marital assets, courts weigh factors such as:

• The length of the marriage
• Each spouse's current and future financial situation
• Each spouse's contributions to the marital estate (including non-financial contributions like raising children)
• The needs of each spouse going forward
• Any fault or misconduct that contributed to the breakdown of the marriage

Unsure how your assets might be split? Get matched in under a minute with a Michigan family law attorney who can help you build your property division strategy.

Whenever a Michigan court makes a decision about where a child will live or who will make decisions for that child, the guiding principle is the best interests of the child. Under the Child Custody Act of 1970, MCL § 722.23 sets out 12 statutory factors that a judge must evaluate before awarding legal or physical custody.

Michigan recognizes two types of custody. Legal custody covers who makes major decisions about the child's education, healthcare, and religious upbringing. Physical custody determines where the child lives day-to-day. Courts can award these independently — for example, joint legal custody with one parent having primary physical custody — in any combination that serves the child's best interests.

The 12 factors the court must weigh include:

1. The love, affection, and emotional ties between the child and each parent
2. Each parent's capacity to give the child love, affection, guidance, and education
3. Each parent's ability to provide food, clothing, and medical care
4. The length of time the child has lived in a stable environment and the desirability of maintaining continuity
5. The permanence of the proposed custodial home as a family unit
6. Each parent's moral fitness
7. Each parent's mental and physical health
8. The child's home, school, and community record
9. The child's reasonable preference, if the child is of sufficient age and maturity
10. Each parent's willingness to facilitate a close relationship between the child and the other parent
11. Whether domestic violence has occurred (MCL § 722.23(k))
12. Any other relevant factor

No single factor automatically controls the outcome. Judges can weigh them differently based on the specific facts of your case. One particularly important factor in practice is the willingness of each parent to encourage the child's relationship with the other parent — a parent who interferes with parenting time or badmouths the other parent can be viewed very unfavorably by the court.

Michigan law also contains a 100-mile rule (MCL § 722.31): a custodial parent who shares custody cannot move the child's legal residence more than 100 miles from where it was established in the custody order without court approval or the other parent's written consent. This distance is measured in a straight line, not by driving distance.

Child support in Michigan is not left to a judge's gut feeling. Under MCL § 552.605, courts must calculate child support using the Michigan Child Support Formula (MCSF), developed by the State Friend of the Court Bureau. The formula uses an income shares model — combining both parents' net incomes and allocating each parent's share of the basic support obligation proportionally.

Key inputs to the formula include:

• Each parent's net income. Income is defined broadly under MCL § 552.602 to include wages, bonuses, commissions, self-employment income, pensions, and many government benefits.
• Overnight parenting time. The more overnights a parent has with the child, the lower that parent's cash support obligation typically is.
• Healthcare and childcare costs. The formula also accounts for health insurance premiums and work-related childcare expenses.

A court can deviate from the formula only if it determines that applying the formula would be unjust or inappropriate in a specific case — and it must explain that reasoning in writing. Common reasons for deviation include a child's special medical or educational needs, extraordinary debt from the marriage, or extreme income situations where the formula produces an unreasonable result.

Child support obligations generally continue until the child turns 18, or until age 19.5 if the child is still in high school. Either parent can request a review of the support order every 36 months, or sooner if there has been a substantial and material change in circumstances, such as a significant income change or a shift in the custody arrangement.

Unlike child support, Michigan has no mathematical formula for spousal support. Under MCL § 552.23(1), a court may award spousal support — sometimes called alimony — in an amount it considers just and reasonable, after considering each party's ability to pay and all the circumstances of the case.

Michigan courts follow 14 factors drawn from case law, most notably established in Sparks v. Sparks, 440 Mich. 141 (1992), when deciding whether to award support and how much. Those factors include:

• The length of the marriage (longer marriages are more likely to result in support)
• Each spouse's ability to work and their realistic earning capacity
• The standard of living established during the marriage
• Each spouse's age and health
• The property division awarded in the divorce
• Fault and past conduct during the marriage
• Each spouse's financial needs and obligations
• General principles of equity

Michigan recognizes four types of spousal support: temporary support paid during the divorce proceedings, rehabilitative support paid for a limited time to help a spouse become self-sufficient (for example, to complete education or job training), periodic long-term support, and lump-sum support. Permanent lifetime alimony is increasingly rare and is generally reserved for very long marriages where the receiving spouse cannot realistically become self-supporting due to age, health, or disability.

If spousal support is awarded as a periodic (ongoing monthly) payment, either party can ask the court to modify it later under MCL § 552.28 if there is a substantial change in circumstances — such as job loss, serious illness, retirement, or remarriage. Lump-sum alimony, by contrast, is typically non-modifiable once paid.

Michigan law takes domestic violence seriously, and if you or your children are in danger, you do not have to wait for a divorce to be filed to seek legal protection. You can petition the Family Division of the Circuit Court for a Personal Protection Order (PPO) under MCL § 600.2950.

A domestic relationship PPO can be issued against a current or former spouse, a co-parent, a current or former dating partner, or a housemate. A judge can issue an emergency ex parte PPO — meaning without advance notice to the abuser — within one business day of filing, if the petition clearly shows that immediate and irreparable harm would result from any delay. An ex parte PPO is valid for at least 182 days from issuance.

A PPO can prohibit the restrained person from contacting you, entering your home or workplace, approaching your children's school, and a range of other conduct. Violating a PPO can result in immediate warrantless arrest, criminal contempt charges, and potential incarceration. If you are in immediate danger, call 911 first — then consult an attorney about your long-term legal options.

No. Because Michigan is a no-fault state, only one spouse needs to believe the marriage has broken down beyond repair. Your spouse can refuse to cooperate or deny the allegations, but a judge can still grant the divorce after the mandatory waiting period has passed and the statutory grounds are established at a brief hearing. If your spouse contests the financial or custody issues, the case becomes a contested divorce and may require mediation or a trial to resolve those specific disputes.

Michigan courts do not favor mothers over fathers or vice versa. A judge must evaluate all 12 best-interest factors under MCL § 722.23 and make findings on each one. In practice, the factors that tend to carry significant weight include the strength of each parent's bond with the child, the stability of each proposed home environment, each parent's willingness to support the child's relationship with the other parent, and — for older children — the child's own reasonable preference. Courts aim to keep children connected to both parents wherever possible.

Yes, but you must meet a legal threshold. For custody modifications, you generally need to show proper cause or a change in circumstances, and the court will also consider whether the child has an established custodial environment before applying the best-interest factors again. For child support, you must demonstrate a substantial and material change in circumstances since the last order was entered, such as a major shift in income or a significant change in the parenting time schedule. Courts may also review support orders every 36 months upon request.

No. Michigan law does not set a minimum marriage length for spousal support eligibility. A judge can award alimony for any marriage, short or long, if one spouse demonstrates financial need and the other has the ability to pay. That said, the length of the marriage is one of the 14 factors courts weigh — longer marriages, especially those where one spouse sacrificed career advancement for the family, are more likely to result in a meaningful support award.

Several options exist. Michigan Legal Help (michiganlegalhelp.org) provides free self-help resources and standardized court forms. Legal aid organizations in many Michigan counties offer free or reduced-cost representation for qualifying low-income residents. If you can afford an attorney for some but not all of your case, limited-scope representation — sometimes called unbundled legal services — lets you hire a lawyer for specific tasks, such as reviewing a settlement agreement or preparing for a hearing. DearLegal can also match you with attorneys who offer flexible fee arrangements.

Michigan family law is detailed, deadline-driven, and deeply fact-specific. Whether you are facing a divorce, a custody dispute, a child support modification, or a need for emergency protection, the right attorney makes a real difference in your outcome. DearLegal makes it simple: start your case by telling us a little about your situation, and we will match you with a vetted Michigan family law attorney — fast, free to match, and with no obligation. You deserve an advocate who knows Michigan law and knows how to fight for you.

DearLegal is not a law firm and does not provide legal advice. This article is for informational purposes only. Consult a licensed attorney in your state for advice on your specific situation.