Michigan law requires three auto insurance coverages: Personal Injury Protection (PIP), Property Protection Insurance (PPI), and Residual Bodily Injury/Property Damage Liability. These minimums exist to satisfy the law — they don't necessarily reflect coverage amounts that are actually adequate for your financial situation.
Every Michigan driver is legally required to carry certain auto insurance coverages. Here's what's actually required, separate from what might be a smart amount to carry.
The legal minimums
- Personal Injury Protection (PIP) — Required at one of the levels established under the 2020 reform; the specific minimum and available options depend on your health coverage situation.
- Property Protection Insurance (PPI) — $1 million in coverage for damage your vehicle causes to property other than vehicles, such as buildings, fences, or utility poles, within Michigan.
- Residual Bodily Injury Liability — Minimum required limits, generally $250,000 per person and $500,000 per accident for bodily injury, and $10,000 for property damage outside Michigan (since PPI only applies in-state). These figures are the statutory floor — they can be increased.
Why "minimum" and "adequate" aren't the same thing
Minimum coverage exists to satisfy the law, not necessarily to fully protect you financially. If you're at fault in a serious accident, residual liability limits at the legal minimum can be exhausted quickly by a single significant injury claim — and you'd be personally responsible for any amount beyond your policy limits.
Similarly, minimum PIP coverage may leave a gap if you don't have other health insurance to fall back on after the no-fault medical benefits are exhausted.
Coverages that aren't required but are worth considering
- Collision coverage — pays for damage to your own vehicle from a crash, regardless of fault. Not required, but often essential if you're still financing the vehicle or couldn't easily afford to replace it out of pocket.
- Comprehensive coverage — covers theft, vandalism, weather damage, and animal strikes. Also not required, but given Michigan's deer-collision rates, frequently worth carrying.
- Uninsured/underinsured motorist coverage — protects you if you're hit by a driver with no insurance or insufficient coverage, which is a real risk given Michigan's uninsured driver rate.
How to think about this for your own policy
The right coverage level isn't really about the legal minimum at all — it's about what you could actually afford to lose without insurance picking up the difference. A used vehicle worth a few thousand dollars and a late-model vehicle you're still financing call for different decisions, even though the legal minimum is the same for both.
If your policy has been at minimum coverage for years without a review, it's worth checking whether that still matches your actual financial situation and the vehicles you're driving today.
How Michigan's requirements compare to neighboring states
Michigan's no-fault structure is genuinely different from neighboring states like Ohio, Indiana, and Wisconsin, which use traditional fault-based systems. If you've moved to Michigan from one of these states, it's worth a specific conversation about how the coverage structure differs, since assumptions carried over from a fault-based state don't map cleanly onto Michigan's system.
PPI: the Michigan-specific coverage most drivers barely think about
Property Protection Insurance is unique to Michigan's no-fault system. It covers damage your vehicle causes to other people's property in Michigan — a fence, a building, a parked car. The mandated $1 million limit is set by the state and isn't a choice you make. It's paid separately from your liability coverage and only applies to in-state incidents. If you cause property damage in Ohio, that falls under your residual property damage liability instead.
Residual liability: the coverage that protects you from lawsuits
Despite Michigan's no-fault framework, lawsuits over auto accidents are still possible in cases involving death, serious injury, or permanent disfigurement. Your residual bodily injury liability coverage is what protects you financially if you're sued in those circumstances. The minimum required limits are $250,000 per person and $500,000 per occurrence — but those are floors, not recommendations. If you have significant assets, carrying liability limits above the legal minimum is worth specific consideration.
The coverages minimum law doesn't require but your situation probably does
Collision coverage and comprehensive coverage are both optional under Michigan law, but if you're still making loan payments on a vehicle, your lender almost certainly requires both. Even without a lender requirement, a vehicle worth more than a few thousand dollars is generally worth protecting with both. See our guides on comprehensive vs. collision coverage and Michigan deer-strike coverage to understand what each actually does.
Uninsured motorist coverage is another optional-but-important addition — see why uninsured motorist coverage matters in Michigan for more.
How minimums and adequate coverage diverge over time
Even if you were fully and appropriately insured when your policy was first written, circumstances drift. Vehicles change in value, assets change, family situations change. A policy set at minimum coverage because minimum was genuinely appropriate at the time can quietly become inadequate years later without anyone making a deliberate decision to reduce coverage. This is a core reason why reviewing your policies regularly matters.