3.2 Michigan General Liability Insurance

Key Takeaways

  • Michigan uses modified comparative negligence with a 50% bar: a plaintiff who is 50% or more at fault recovers nothing and, at any fault level, cannot recover non-economic damages if more than 50% at fault
  • Liability is several (proportionate), not joint and several, in most multi-defendant tort cases under MCL 600.6304
  • Commercial General Liability (CGL) coverage hinges on the occurrence vs. claims-made trigger and the duty to defend
  • Medical malpractice suits require a notice of intent and an affidavit of merit, with statutory caps on non-economic damages indexed annually
  • Products liability claims run on a 3-year statute of limitations measured from injury
Last updated: June 2026

Modified Comparative Negligence (the 50% Bar)

Michigan apportions fault among all parties and then reduces or bars recovery accordingly. Two related rules govern, both codified at MCL 600.2959:

  • A plaintiff's economic damages (medical bills, wage loss, repair costs) are reduced by the plaintiff's percentage of fault, with no fault ceiling.
  • A plaintiff's non-economic damages (pain and suffering, emotional distress) are completely barred if the plaintiff is more than 50% at fault.

Put simply, Michigan is a 50% bar state for the pain-and-suffering portion of a claim. This is stricter than the many states using a 51% bar, where a plaintiff exactly at 50% can still recover.

Fault Allocation Examples

Plaintiff FaultEconomic DamagesNon-Economic Damages
30%Reduced 30% (recover 70%)Reduced 30% (recover 70%)
49%Reduced 49% (recover 51%)Reduced 49% (recover 51%)
50%Reduced 50% (recover 50%)Reduced 50% (recover 50%)
51%Reduced 51% (recover 49%)BARRED — $0

Exam trap: The bar attaches at more than 50% for non-economic damages. At exactly 50% the plaintiff still collects half of both buckets. Economic damages are never fully barred by comparative fault — only proportionally reduced.

Several vs. Joint and Several Liability

Michigan's 1995 tort reform (MCL 600.6304 and 600.6312) abolished joint and several liability in most multi-defendant cases. Each defendant pays only its proportionate share of fault — this is several (allocated) liability. The court enters a separate judgment against each defendant based on assigned percentages.

Damage TypeLiability Rule
Most tort cases (negligence)Several only — pay your % share
Limited statutory exceptions (e.g., certain medical malpractice gross-negligence scenarios)Joint and several may still apply

A producer's takeaway: an insured defendant in Michigan generally cannot be forced to pay an empty-pocket co-defendant's share, which affects exposure and limit selection.

Worked example: Three contractors are sued for a $1,000,000 loss and assigned fault of 70%, 20%, and 10%. Under several liability, the insured 20%-fault contractor pays only $200,000, even if the 70%-fault contractor is bankrupt. In a true joint-and-several state, that same insured could be tagged for the full $1,000,000 and then chase the others for contribution.

Commercial General Liability (CGL)

A standard CGL policy provides Coverage A (bodily injury and property damage), Coverage B (personal and advertising injury), and Coverage C (medical payments). The single most testable concept is the coverage trigger:

TriggerCovers a Claim When...Key Feature
OccurrenceThe injury happens during the policy periodCovers late-reported claims; no tail needed
Claims-madeThe claim is first made during the policy periodNeeds a retroactive date and an Extended Reporting Period (tail)

CGL policies impose a duty to defend that is broader than the duty to indemnify — the insurer must defend any suit that potentially falls within coverage, even groundless ones, and defense costs are typically paid outside the limits in a standard ISO CGL. The pollution exclusion removes coverage for gradual contamination; insureds buy separate Environmental Impairment Liability (EIL) or pollution legal liability to fill the gap.

Michigan environmental cleanup duties arise under NREPA (Natural Resources and Environmental Protection Act), enforced by the Department of Environment, Great Lakes, and Energy (EGLE), which can impose strict cleanup liability.

Professional Liability and Medical Malpractice

Professional liability (errors and omissions, E&O) is almost always written on a claims-made basis. Michigan medical malpractice has unique procedural gates:

  • A Notice of Intent (NOI) must be served at least 182 days before filing suit (MCL 600.2912b).
  • An Affidavit of Merit signed by a qualifying expert must accompany the complaint (MCL 600.2912d).
  • Non-economic damage caps apply and are adjusted annually for inflation by the state treasurer; a higher cap applies in cases of severe permanent injury (e.g., paralysis, loss of cognitive function).
ProfessionMichigan Treatment
AttorneysMalpractice coverage encouraged; disclosure norms apply
Architects / EngineersE&O effectively required by contract
Healthcare providersMalpractice exposure governed by affidavit-of-merit rules and caps

Products Liability

Michigan recognizes negligence, breach of warranty, and strict-liability theories for defective products. Important limits:

  • Statute of limitations: 3 years from the date of injury (MCL 600.5805).
  • The economic loss doctrine routes purely economic claims (product damages only) to contract/UCC remedies, not tort.
  • The products-completed operations hazard in a CGL covers injuries occurring after work is finished and off premises — a frequently tested distinction from the premises/ongoing-operations hazard.

Exam tip: Match the theory to the remedy — defective product causing bodily injury = tort/products liability; product that merely fails to perform with no other damage = economic loss, contract remedy.

Liquor Liability and Other Michigan Statutory Exposures

Michigan's Dramshop Act (MCL 436.1801) creates liability for a licensed seller who unlawfully furnishes alcohol to a visibly intoxicated person or a minor who then injures a third party. Standard CGL policies exclude liquor liability for businesses in the business of selling alcohol, so bars, restaurants, and caterers must buy a separate liquor liability policy. The statute requires the injured plaintiff to identify and "name and retain" the allegedly intoxicated person, a procedural trap that defense counsel and insurers watch closely.

A producer placing commercial liability in Michigan should map each insured's operations to the right form: premises and operations to CGL, finished work to products-completed operations, professional advice to E&O, environmental exposure to pollution liability, and alcohol sales to dramshop coverage. Gaps between these forms are where uncovered claims hide.

Test Your Knowledge

A Michigan plaintiff is found 55% at fault for an accident. What can the plaintiff recover for pain and suffering (non-economic damages)?

A
B
C
D
Test Your Knowledge

Which CGL coverage trigger requires a retroactive date and an Extended Reporting Period (tail) to protect against late-reported claims?

A
B
C
D
Test Your Knowledge

Under Michigan's general tort reform, how is liability among multiple negligent defendants ordinarily allocated?

A
B
C
D