Fault system (no-fault vs at-fault) in Michigan

Michigan calls itself a no-fault state, and that's accurate, but the label confuses a lot of people in the days after a crash. No-fault does not mean nobody was at fault or that fault stops mattering. It means your own auto insurer pays your medical bills and wage loss first, no matter who caused the collision. Whether you can hold the other driver responsible for anything beyond that, and how much you actually collect, still comes down to fault. Here is how the two systems work together under Michigan law.

Your own insurance pays first

The Michigan no-fault act requires every registered vehicle to carry Personal Injury Protection, usually called PIP.¹ After a crash you file a PIP claim with your own company, and it covers reasonable medical treatment, up to three years of lost wages, replacement services, and related expenses, regardless of who was at fault.¹

Since the 2020 reform took effect, drivers choose how much PIP medical coverage to buy rather than carrying the old mandatory unlimited level. The options are unlimited, $500,000, $250,000, $50,000 if everyone on the policy is enrolled in Medicaid, or a full opt-out from PIP medical if the named insured has Medicare Parts A and B and every household member has other qualifying health coverage.²³ The level you picked controls how far your PIP will stretch before you have to look elsewhere for medical costs.

PIP wage loss is capped and adjusted every October. For the period from October 1, 2025 through September 30, 2026, the maximum work-loss benefit is $7,201 per 30-day period.⁴

When you can sue the at-fault driver

This is where fault comes back into the picture. To recover pain-and-suffering damages (what the statute calls noneconomic loss) from the driver who hit you, your injury has to clear a legal bar. Under MCL 500.3135, you can pursue noneconomic damages only if the crash caused death, permanent serious disfigurement, or a "serious impairment of body function."⁵

That last phrase is defined in the statute. It means an objectively manifested impairment, one that someone other than you can observe or perceive, of an important body function that affects your general ability to lead your normal life.⁵ The Legislature wrote this three-part test into the law in 2019 to lock in the Michigan Supreme Court's decision in McCormick v. Carrier, 487 Mich. 180 (2010).⁵ A minor strain that clears up in a couple of weeks usually will not meet it. A fracture that keeps you out of work for months frequently does. The line is fact-specific, which is why insurers fight these cases so hard.

If your injury does clear the threshold, Michigan puts no dollar cap on the economic or noneconomic damages a jury can award in that at-fault lawsuit.⁵

Vehicle damage and the mini-tort

No-fault will not repair your car after a typical in-state collision; collision coverage handles that. Michigan does let you recover a limited amount straight from the at-fault driver through what's known as the "mini-tort." You can collect up to $3,000 for vehicle damage your own insurance didn't pay, most often your deductible, and only when the other driver was more than 50% at fault.⁵ The 2020 reform raised that cap to its current $3,000.

The mini-tort covers repair costs, not the resale value a wrecked car loses even after a good repair. That loss is a separate diminished value claim, explained on our Michigan diminished value page.

How Michigan splits fault

When more than one driver shares blame, Michigan applies modified comparative fault. Your damages are reduced by your own percentage of fault.⁶ There is a hard cutoff for pain and suffering: under MCL 600.2959, if you are more than 50% at fault you cannot recover any noneconomic damages at all, though you can still collect economic damages reduced by your share.⁶ At 50% or less, both categories are simply trimmed by your percentage. A jury that finds you 20% responsible cuts a $100,000 award to $80,000. A finding of 51% erases the pain-and-suffering portion completely.

What the other driver's policy has to carry

Since July 1, 2020, Michigan auto policies carry default bodily injury liability limits of $250,000 per person and $500,000 per accident.⁷ A driver can sign a state-issued form to buy lower limits, but not below $50,000 per person and $100,000 per accident.⁷ Policies also include $10,000 in property damage liability for damage the driver causes in another state.⁷ Those numbers cap what the at-fault driver's insurer will pay if you win.

Uninsured and underinsured motorist coverage works differently. Michigan does not require it. DIFS lists UM and UIM as coverages you may add to a policy, not ones the law mandates.⁸ That gap can be the whole ballgame: if the driver who hit you carries nothing or bare-minimum limits, your own UM or UIM coverage may be the only place a serious noneconomic claim gets paid.

The deadlines that can end your claim

Michigan runs two separate clocks, and blowing either one can sink a strong case.

For a lawsuit against the at-fault driver, you generally have three years from the date of the crash to file, under MCL 600.5805(2).⁹ Michigan applies the same three-year window to vehicle and property damage claims.⁹

PIP carries its own, tighter deadlines under MCL 500.3145. You have to notify your insurer of the injury within one year of the crash, and the "one-year-back rule" limits your recovery to losses you incurred in the year before you file suit.¹⁰ Wait too long and you can forfeit older bills even when the claim itself is still alive.

Getting help

Because the serious-impairment threshold and the comparative-fault cutoff are both decided case by case, the evidence you collect early shapes the whole outcome. The crash report is where fault often starts getting assigned; you can order your Michigan crash report here. If your injuries might clear the threshold, or you're staring down a fault dispute or an uninsured driver, it's worth talking to a lawyer who handles Michigan no-fault cases. You can find a Michigan attorney through our directory.

This is general information, not legal advice.

Sources

1. Michigan No-Fault Act, MCL 500.3101 et seq. https://www.legislature.mi.gov/Laws/MCL?objectName=MCL-500-3101

2. Michigan Department of Insurance and Financial Services, "Choosing PIP Medical Coverage." https://www.michigan.gov/autoinsurance/choosing-coverage/choosing-pip-med-coverage

3. MCL 500.3107c (PIP medical coverage level choices). https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-500-3107c

4. MCL 500.3107(1)(b); Michigan DIFS Bulletin 2025-18-INS (annual work-loss maximum). https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-500-3107 and https://www.michigan.gov/difs/-/media/Project/Websites/difs/Bulletins/2025/Bulletin_2025-18-INS.pdf

5. MCL 500.3135 (tort liability threshold; codified serious-impairment definition from McCormick v. Carrier, 487 Mich. 180 (2010); mini-tort at subsection (3)(e)). https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-500-3135

6. MCL 600.2959 (comparative fault; reduction of damages). https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-600-2959

7. MCL 500.3009 (residual liability coverage limits). https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-500-3009

8. Michigan Department of Insurance and Financial Services, "Purchasing Auto Insurance" FAQ. https://www.michigan.gov/difs/news-and-outreach/faq/insurance/info-purchasing-auto-insurance

9. MCL 600.5805 (period of limitations for injuries to persons or property). https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-600-5805

10. MCL 500.3145 (PIP one-year notice and one-year-back rule). https://www.legislature.mi.gov/Laws/MCL?objectName=MCL-500-3145