State Dog Bite Law

Dog bite law in all 50 states and D.C., cited to the statute and dated

Every state checked against its statutes, October 2026

Michigan Dangerous Dog Law

Reviewed For dog owners and bite victims

In Michigan, a bite must be reported to the local health department within 24 hours, and an owned dog is confined for 10 days of rabies observation22,23. If the bite caused serious injury, a sworn complaint brings the owner before a district court, and a dangerous-animal finding for a serious injury means the dog must be destroyed17. The owner can also face a felony charge, even for a first bite18.

After a bite in Michigan

Rabies observation10 daysDetails below
State dangerous-dog lawMCL 287.321–287.323Dangerous Animals (1988 PA 426)
Classes of dogdangerous animal
Required insurance for a declared dogNo statewide minimum
Breed-specific lawsAllowed: cities and counties may adopt them
Civil liability for the biteStrict liability statute

What happens right after the bite?

The bite is a public health event first. Under the state's communicable disease rules, anyone who knows of an animal bite where rabies is suspected must report it within 24 hours to the local health department, giving the dog's owner, its vaccination status, and where and when the bite happened22. Health care providers must separately report any rabies post-exposure treatment they start22. The owner must answer the health department's questions about the dog22.

The state health department's guidance then calls for an owned dog that bit a person to be confined for 10 days from the day of the bite, whether or not it is vaccinated23. If the dog stays healthy, it is considered rabies-free at the end of that period; if it falls ill with signs of rabies or dies, it is tested23. The state guidance does not say whether the dog stays home or goes to a shelter or clinic, so that call belongs to the local health department or animal control23.

How does a dog become a "dangerous animal"?

Michigan's Dangerous Animals act of 1988 uses one class, "dangerous animal". A dog qualifies if it bites or attacks a person, or if it bites or attacks and seriously injures or kills another dog that is on its owner's property or under its owner's control16. The definition excludes a dog that bites someone knowingly trespassing on the owner's property, someone who provoked or tormented it, or someone it was protecting a person from, as an ordinary person would see it16. "Provoke" here means a willful act or omission likely to cause an ordinary dog to bite, which is narrower than the provocation defense in civil suits16,3.

The process starts with a sworn complaint to a district court, district court magistrate or municipal court, and it is reserved for animals that caused serious injury or death to a person or a dog17. "Serious injury" means permanent, serious disfigurement or a serious impairment of health or of a bodily function16. The court issues a summons ordering the owner to appear and show cause why the dog should not be destroyed17.

Where is the dog during the case?

Once the complaint is filed, the court orders the owner to hand the dog over right away, to animal control, a humane society, a veterinarian or a boarding kennel of the owner's choosing, until the hearing is decided17. The owner pays for boarding, and the dog will not be returned until it has a current rabies vaccination and license17.

When must the court order the dog destroyed?

Under the section as amended in 2022, if after the hearing the dog is found to be a dangerous animal that caused serious injury or death to a person or to a dog, the court shall order it destroyed at the owner's expense17. The court may order destruction if the dog was previously adjudicated dangerous, or if it did not cause serious injury but is likely to cause serious injury or death in the future17. The act does not set its own appeal deadline.

What if the dog is declared dangerous but is not destroyed?

When the court finds a dangerous animal that did not cause serious injury to a person, it notifies the county animal control authority of the finding, the owner's name and the dog's address, and orders one or more conditions: a permanent identification number assigned by a veterinarian, escape-proof fencing or an enclosure with a top, sterilization, liability insurance sufficient to protect the public, or any other action needed to protect the public17. Unlike many states, Michigan sets no dollar minimum for that insurance; the judge decides17.

Can the owner be charged with a crime?

Yes, and no earlier dangerous-animal finding is needed for the most serious charges. If a dog that meets the dangerous-animal definition kills a person, the owner is guilty of involuntary manslaughter18. If it attacks and causes serious injury, the owner is guilty of a felony punishable by up to 4 years in prison, a fine of at least $2,000, at least 500 hours of community service, or a combination18. A court may also order a convicted owner to pay the costs of prosecution18.

What changes if the dog bites again?

A prior adjudication raises the stakes. If a dog already declared dangerous bites or attacks and causes even a minor injury, the owner commits a misdemeanor punishable by up to 90 days, a fine of $250 to $500, or 240 hours of community service; the same penalty applies if the owner lets that dog run at large18. And a court may order destruction of a previously adjudicated dog without a new serious injury17.

Can a person kill a dog that is attacking?

The Dog Law of 1919 lets any person, including a police officer, kill a dog seen attacking a person, or pursuing, worrying or wounding livestock or poultry, without liability21. Outside those situations, killing or injuring a licensed dog is unlawful21.

Does Michigan restrict particular breeds?

The state does not, and it does not stop cities from doing so. Bills to bar breed-specific local ordinances were introduced in 2023 and never left committee, so local breed rules remain possible25. Check your city or township ordinance. For national context, see dangerous dog laws, euthanasia after a bite and my dog bit someone.

Rules for a declared dog in Michigan

RequirementRule
Permanent identificationMicrochip or other permanent ID number, by a veterinarianCourt may order; MCL 287.322(5)(a).17
EnclosureEscape-proof fencing or an enclosure with a top or roofCourt may order; MCL 287.322(5)(b).17
SterilizationSpay or neuterCourt may order; MCL 287.322(5)(c).17
Liability insuranceEnough to protect the public; no fixed minimumCourt may order; MCL 287.322(5)(d).17
Before the dog comes homeCurrent rabies vaccination and dog licenseMCL 287.322(2).17
Running at largeMisdemeanor, up to 90 daysFor a dog already adjudicated dangerous; MCL 287.323(4).18

Michigan rules in brief

Reporting. Any person who knows of an animal bite where rabies is suspected must report it within 24 hours to the local health department, and to the health department where the bite happened, with the animal's species, owner, vaccination status, the place and date, and the victim's details22. Anyone with information on the biting animal or its owner must give it on request, and health providers must report any rabies post-exposure treatment they start22.

Euthanasia. On a sworn complaint that a dangerous animal caused serious injury or death to a person or a dog, a district court or magistrate holds a show-cause hearing; if the finding is made, the court must order the dog destroyed at the owner's expense17. It may order destruction of a dog previously adjudicated dangerous, or one that did not cause serious injury but is likely to in the future17.

Criminal penalties. If a dog that meets the dangerous-animal definition kills a person, the owner is guilty of involuntary manslaughter under MCL 750.321; a serious injury is a felony punishable by up to 4 years, a fine of at least $2,000, or 500 hours of community service18. A dog previously adjudicated dangerous that injures someone, or is allowed to run at large, exposes the owner to a misdemeanor of up to 90 days18.

Breed rules. No Michigan statute bars breed-specific local ordinances; 2023 bills to ban them (HB 5039–5041) never left committee25.

Compare states: dangerous dog laws by state, bite quarantine rules, euthanasia after a bite. If your dog bit someone, start with what happens next.

Sources

  1. MCL 287.351, Person bitten by dog; liability of owner, Michigan Legislature. Checked 17 October 2026.
  2. Bradacs v. Jiacobone, 244 Mich. App. 263, 625 N.W.2d 108 (2001), CourtListener. Checked 17 October 2026.
  3. Brans v. Extrom, 266 Mich. App. 216, 701 N.W.2d 163 (2005), CourtListener. Checked 17 October 2026.
  4. Hill v. Sacka, 256 Mich. App. 443, 666 N.W.2d 282 (2003), CourtListener. Checked 17 October 2026.
  5. Koivisto v. Davis, 277 Mich. App. 492, 745 N.W.2d 824 (2008), CourtListener. Checked 17 October 2026.
  6. Kelsey v. Lint, 322 Mich. App. 364, 912 N.W.2d 862 (2017), CourtListener. Checked 17 October 2026.
  7. Trager v. Thor, 445 Mich. 95, 516 N.W.2d 69 (1994), CourtListener. Checked 17 October 2026.
  8. Feister v. Bosack, 198 Mich. App. 19, 497 N.W.2d 522 (1993), CourtListener. Checked 17 October 2026.
  9. Tate v. City of Grand Rapids, 256 Mich. App. 656, 671 N.W.2d 84 (2003), CourtListener. Checked 17 October 2026.
  10. MCL 600.5805, Injuries to persons or property; period of limitations, Michigan Legislature. Checked 17 October 2026.
  11. MCL 600.5851, Disabilities of infancy or insanity, Michigan Legislature. Checked 17 October 2026.
  12. MCL 600.2959, Comparative fault; reduced damages, Michigan Legislature. Checked 17 October 2026.
  13. MCL 600.2958, Plaintiff's contributory fault not a bar to recovery, Michigan Legislature. Checked 17 October 2026.
  14. MCL 600.6431, Court of claims; notice of intention to file claim, Michigan Legislature. Checked 17 October 2026.
  15. MCL 600.1483, Medical malpractice; limitation on noneconomic damages, Michigan Legislature. Checked 17 October 2026.
  16. MCL 287.321, Dangerous Animals act definitions, Michigan Legislature. Checked 17 October 2026.
  17. MCL 287.322, Sworn complaint; destruction of animal; owner orders (as amended by 2022 PA 121), Michigan Legislature. Checked 17 October 2026.
  18. MCL 287.323, Owner guilty of involuntary manslaughter, felony, or misdemeanor, Michigan Legislature. Checked 17 October 2026.
  19. MCL 287.262, Dogs; licensing, tags, leashes, Michigan Legislature. Checked 17 October 2026.
  20. MCL 287.288, Common law liability, Michigan Legislature. Checked 17 October 2026.
  21. MCL 287.279, Killing of dog attacking persons or livestock, Michigan Legislature. Checked 17 October 2026.
  22. 2026 Health Care Professional's Guide to Disease Reporting in Michigan (animal bite reporting, R 325.182), Michigan Department of Health and Human Services. Checked 17 October 2026.
  23. Michigan Rabies Assessment: When Animals Have Bitten People (reviewed June 2025), Michigan Department of Health and Human Services. Checked 17 October 2026.
  24. House Bill 5580 of 2026 (dog breed in property insurance), Michigan Legislature. Checked 17 October 2026.
  25. House Bill 5041 of 2023 (breed-specific ordinances), Michigan Legislature. Checked 17 October 2026.

Civil claims, deadlines and insurance: Michigan dog bite law. All states

How this page is checked

Every rule on this page is cited to the statute, regulation or court decision it comes from, and each source was opened on the date shown. We don't take payments from law firms or insurers. This is general information, not legal advice; laws change, so check the cited source or ask a lawyer licensed in the state before you rely on a deadline. Spotted an error? Tell us. Our method