Aggravated Assault in Michigan: Penalties, Firearms, and Defenses

Aggravated assault in Michigan is a misdemeanor under MCL 750.81a, defined as assaulting someone without a weapon and causing a serious or aggravated injury, but without intending to kill or to inflict great bodily harm. A first offense carries up to one year in jail and a $1,000 fine. The charge climbs to a five-year felony when the victim is a domestic partner and the defendant already has a prior domestic violence conviction. The name is misleading: despite the word “aggravated,” this offense sits in the middle of Michigan’s assault ladder, not at the top.¹

What the Statute Actually Requires

MCL 750.81a covers a narrow scenario. The prosecutor must show three things: an assault, a serious or aggravated injury, and the absence of both a weapon and any intent to commit murder or inflict great bodily harm less than murder. That last piece surprises people. The statute applies because you didn’t intend serious injury. If the evidence shows you did intend great bodily harm, prosecutors charge a different, more serious felony instead.¹

The injury element does the heavy lifting. Michigan courts look for something beyond the scrapes and bruises that come with a routine scuffle. Broken bones, cuts requiring stitches, concussions, disfigurement, and impaired bodily function all qualify. A punch that breaks someone’s jaw in a bar fight typically lands here, even if the person throwing the punch never meant to break anything. The injury itself pulls the charge above simple assault.

The no-weapon requirement matters just as much. Any dangerous object in play — a knife, a gun, a bat, brass knuckles — takes the case out of MCL 750.81a and into felonious assault territory under a different statute.

Where It Sits Among Michigan’s Assault Charges

Michigan’s assault statutes form a rough ladder, and knowing where aggravated assault falls helps make sense of the penalty range.

Simple assault and battery under MCL 750.81 is the bottom rung: physical contact or threats with minor or no injury, a misdemeanor with up to 93 days in jail.
Aggravated assault under MCL 750.81a is one step up: serious injury, no weapon, no intent to cause great bodily harm. Misdemeanor, up to one year and $1,000.
Felonious assault under MCL 750.82 involves a dangerous weapon without intent to kill or cause great bodily harm. Felony, up to four years and $2,000.²
Assault with intent to do great bodily harm under MCL 750.84 requires proof of that specific intent. Felony, up to ten years and $5,000. The same statute covers strangulation and suffocation regardless of the specific intent.³

The line between aggravated assault and assault with intent to do great bodily harm often turns on what the evidence shows about the defendant’s state of mind, and prosecutors have real discretion in which charge to file. That discretion is one reason the early stages of a case matter so much.

Penalties

Standard First Offense

A first-offense aggravated assault under MCL 750.81a(1) is a misdemeanor carrying up to one year in county jail, a fine of up to $1,000, or both. Courts routinely add probation, community service, and anger management. If the victim was a health professional or medical volunteer performing their duties at the time of the assault, the maximum fine doubles to $2,000. That enhancement doesn’t apply if the defendant was a patient being treated by that worker.¹

The Domestic Violence Jump to Felony

The charge crosses into felony territory when two conditions line up. First, the victim has to be a spouse, former spouse, dating partner, co-parent, or household member. Second, the defendant has to have at least one prior conviction for domestic violence assault, either under a Michigan statute or a substantially similar law from another state. When both are true, MCL 750.81a(3) makes the offense a felony punishable by up to five years in prison, a fine of up to $5,000, or both.¹

A first-offense domestic aggravated assault under MCL 750.81a(2) is still a misdemeanor with the standard one-year/$1,000 cap. It’s the second conviction that flips everything. County jail becomes state prison, and habitual offender enhancements can extend the maximum further if the defendant has three or more prior felonies.⁴

Restitution and Probation

Beyond jail time and fines, courts typically order restitution for the victim’s medical bills, lost wages, and other direct losses. Probation conditions are tailored to the individual case and often include no-contact orders protecting the victim, substance abuse treatment, and anger management.

Firearms After a Conviction

An aggravated assault conviction can end firearm ownership, and the analysis depends on which subsection applied. Federal law bars anyone convicted of a crime punishable by more than one year from possessing firearms or ammunition. A standalone conviction under 750.81a(1), which caps at one year, doesn’t technically cross that federal threshold on its own.⁵

A conviction under 750.81a(2) is different. Federal law separately imposes a lifetime firearm ban on anyone convicted of a “misdemeanor crime of domestic violence,” regardless of the maximum sentence. And if the offense is elevated to a felony under 750.81a(3), the federal felon-in-possession ban applies along with Michigan’s own restrictions. For hunters, sport shooters, and anyone whose job involves a firearm, this is often the most damaging piece of the conviction.

Defenses That Come Up

Self-Defense and Stand Your Ground

Michigan is a stand-your-ground state. Under MCL 780.972, a person who is not committing a crime may use non-deadly force anywhere they have a legal right to be, with no duty to retreat, if they honestly and reasonably believe force is necessary to defend against the imminent unlawful use of force by another. Deadly force requires an honest and reasonable belief that it’s necessary to prevent imminent death, great bodily harm, or sexual assault.⁶

Both parts of the test have to hold. “Honestly” is subjective — you actually believed force was necessary. “Reasonably” is objective — a reasonable person in your position would have believed the same thing. Courts look at the relative size and strength of the parties, who started it, verbal threats leading up to the incident, and whether the defendant had a chance to de-escalate.

Challenging the Injury

Because the statute requires a “serious or aggravated injury,” defense counsel often attacks that element directly. Bruises and minor swelling may support simple assault but not this charge. Medical records are the central evidence. If the defense can show the injuries needed no significant treatment and left no lasting impairment, the charge may drop to simple assault and battery, taking the jail exposure from one year to 93 days.

No Intent to Assault at All

The statute doesn’t require intent to cause great bodily harm, but it still requires an intentional assault. A genuine accident isn’t an assault. Someone who bumps another person down a staircase while rushing through a doorway hasn’t committed the offense, even if the injuries are serious. The prosecution has to prove the underlying assault was intentional beyond a reasonable doubt.

Mistaken Identity

In chaotic settings — bar fights, large gatherings, protests — identifying the right person is harder than witnesses make it sound. Eyewitness testimony is unreliable under stress, and surveillance footage rarely captures every angle. A mistaken-identity defense usually leans on alibi evidence, independent witnesses, and the presence or absence of forensic evidence.

Expungement Later On

Michigan lets people petition to set aside convictions, but assault convictions face specific caps. Under MCL 780.621, no more than two assaultive crime convictions can be set aside in a person’s lifetime. Aggravated assault under 750.81a is an assaultive crime, so each conviction counts against that cap.⁷

Additional limits apply to felonies: no more than three felony convictions may be set aside total, and no more than one felony conviction for the same offense if that offense carries a possible sentence over 10 years. For a standard misdemeanor aggravated assault, the two-assault lifetime cap is the main barrier. Someone who has already had two assault convictions set aside cannot expunge a third, no matter how much time passes.

Immigration, Employment, and Licensing

A noncitizen charged with aggravated assault should talk to an immigration attorney before entering any plea. Assault convictions can trigger removal in two ways: as a “crime involving moral turpitude” or, in more serious cases, as an “aggravated felony” under federal immigration law — a category that can include offenses that are neither aggravated nor felonies under state law. An aggravated felony designation brings mandatory deportation, a permanent bar on re-entry, and ineligibility for almost all immigration relief, including asylum. Even a misdemeanor can carry immigration consequences if it falls within the domestic violence category. A plea that looks favorable on the criminal side can be devastating on the immigration side, so the two defenses need to be coordinated before any deal is signed.

Employment consequences run parallel. A conviction shows up on background checks, and employers in education, healthcare, law enforcement, and financial services routinely screen out candidates with violent crime convictions. Licensed professionals — nurses, doctors, attorneys, real estate agents, teachers — usually have to disclose convictions to their licensing boards, and a violent offense can trigger discipline ranging from probation to revocation. Medical professionals may also lose hospital privileges, get dropped from insurance panels, and receive negative reports to the National Practitioner Data Bank. The 30-day sentence often causes less long-term harm than the license consequences that follow it.

1
Michigan Legislature. Michigan Compiled Laws 750.81a (2025) – Assault; Infliction of Serious or Aggravated Injury
2
Michigan Legislature. Michigan Compiled Laws 750.82 (2025) – Felonious Assault
3
Michigan Legislature. Michigan Compiled Laws 750.84 – Assault With Intent to Do Great Bodily Harm Less Than Murder
4
Michigan Legislature. Michigan Compiled Laws 769.12 – Punishment for Subsequent Felony Following Conviction of 3 or More Felonies
5
Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
6
Michigan Legislature. Michigan Compiled Laws 780.972 (2025) – Use of Deadly Force by Individual Not Engaged in Commission of Crime
7
Michigan Legislature. Michigan Compiled Laws 780.621 (2025) – Application for Order Setting Aside Conviction