The Impact of Infidelity and Fault on Alimony Awards Under Michigan's No-Fault Laws

Current as of: September 20, 2026 Alimony & Spousal Support Michigan
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Although Michigan is a no-fault state for getting a divorce, judges still heavily weigh marital fault-such as infidelity, gambling, or abuse-when deciding the amount and duration of spousal support.

Understanding No-Fault vs. Fault in Michigan Alimony

Michigan operates under a pure no-fault divorce system, governed by Mich. Comp. Laws § 552.6. This means you do not need to prove your spouse did something wrong just to get a divorce; you simply state there has been a breakdown of the marriage. However, when it comes to financial matters, fault is far from irrelevant. The court considers the past conduct of the parties as one of the critical Sparks factors. If infidelity, substance abuse, or financial reckless behavior led to the end of the marriage, the judge may significantly adjust the alimony award.

Proving Fault Without Crossing into Harassment

Establishing that your spouse engaged in an extramarital affair can be a delicate process. Gathering evidence must be done legally. Hacking into private email accounts, installing GPS trackers without consent, or recording phone calls illegally can hurt your case and result in criminal charges. To handle this smoothly, we highly recommend consulting a local lawyer from our US Lawyers directory to ensure you do not violate state privacy laws while building your case.

Financial Dissipation via Extramarital Affairs

Judges are particularly focused on the financial impact of infidelity. If a spouse spent significant marital funds on a paramour-such as buying gifts, paying for vacations, or renting apartments-this is known as marital waste or dissipation of assets. The court may increase the alimony obligation of the at-fault spouse to compensate the innocent spouse for the money that was unfairly drained from the marital estate.

How Abuse Allegations Alter Support Duration

If domestic violence or severe emotional abuse is present, the court evaluates this as a major fault factor under the state's alimony guidelines. A judge might award a higher alimony amount to the victimized spouse to help them secure financial independence and safety. Note that this article focuses purely on the financial aspects of alimony, not on the separate legal process of obtaining personal protective orders.

Step-by-Step Process in Michigan

If you live in cities like Lansing, Mount Clemens, or Detroit, raising the issue of fault during an alimony dispute involves several formal steps.

Step 1: Filing the Complaint. The process starts by filing your divorce paperwork. While you do not state fault as the grounds for divorce itself, you may indicate that spousal support is requested due to the circumstances of the case at the Ingham County Circuit Court, Lansing or the Macomb County Circuit Court, Mount Clemens.

Step 2: Conducting Discovery. This is the phase where you legally gather evidence of the fault. You may issue subpoenas for bank statements, credit card bills, or phone records to prove financial dissipation.

Step 3: Depositions. Your attorney may question your spouse under oath about their behavior or spending habits during the marriage. Lying under oath carries severe penalties.

Step 4: Trial or Settlement. If you cannot settle the financial dispute, a judge will review the evidence of fault and finalize the alimony amount. Often, the court will require Form FOC 10b, Michigan, State Court Administrative Office, Uniform Spousal Support Order to formalize the payment terms.

Fault vs. No-Fault Impact on Finances

FeatureImpact on Divorce FilingImpact on Spousal Support
InfidelityNone (Divorce will be granted regardless)May increase or decrease alimony amounts
Gambling DebtsNoneCourt may assign the debt to the at-fault spouse
Substance AbuseNoneMay result in long-term support for the innocent spouse

How Much Does it Cost in Michigan?

Proving fault can make a divorce significantly more expensive due to the extended discovery process.

  • Court Filing Fee: Around $175 to start the divorce case.
  • Subpoena Fees: Typically $15 to $50 per subpoena, plus process server costs.
  • Private Investigator: Can cost between $75 and $200 per hour if you need legal surveillance.

How Long Does the Process Take?

High-conflict divorces involving fault and alimony disputes generally take much longer to resolve. In Michigan, these cases often last between 9 and 18 months, depending on the court's docket and the complexity of the discovery phase.

Frequently Asked Questions (FAQ)

Will my spouse be denied alimony if they cheated?

Not necessarily. While fault is a strong factor, judges also consider the length of the marriage and absolute financial needs. A cheating spouse might still receive some support if they are entirely financially dependent.

Do I need hard proof of the affair?

Yes, mere suspicion is not enough. You generally need bank statements, texts, hotel receipts, or witness testimony to prove marital misconduct and its financial impact.

Does abuse guarantee more alimony?

No outcome in court is 100% guaranteed. However, a documented history of abuse is a major factor that courts consider when determining the fairness of an alimony award.

Can fault affect property division too?

Yes. Similar to spousal support, a judge may award a larger share of the marital estate to the innocent spouse if severe fault or marital waste is proven.


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