Auto insurance: what to actually carry

Auto insurance is a collection of separate coverages bundled into one policy. Most states require a minimum, but the minimums are usually way below what you actually need to protect yourself. Understanding each piece lets you build a policy that's both properly protective and not over-insured.

The coverage types

• Liability — covers damage you cause to others' cars, property, and bodies. Required by law. This is the most important coverage.
• Collision — pays for your own car's damage in an accident, regardless of fault. Required if you have a car loan.
• Comprehensive — pays for damage to your car from non-collision events (theft, vandalism, hail, animals).
• Uninsured/underinsured motorist — covers you if hit by someone with no or inadequate insurance. Surprisingly common; worth having.
• Medical/PIP (personal injury protection) — covers medical bills for you and passengers.
• Gap insurance — covers the difference between what you owe on the car and its depreciated value if totaled. Important for newer financed vehicles.

Where to save

• Raise your deductible from $500 to $1,000 (saves 10–15% on premium) if you have enough in savings to absorb the extra out of pocket.
• Drop collision/comprehensive on old cars where the premium exceeds the replacement value.
• Shop around every 2–3 years. Loyalty is rarely rewarded in auto insurance.
• Bundle with home/renters for a discount.
• Ask about telematics (driving habits) programs — safe drivers can save 10–30%.

What better coverage actually costs

The most common objection to higher liability limits is cost, and it's the weakest one. Liability limits are cheap to raise because serious at-fault accidents are rare; most of your premium pays for the frequent small stuff — fender benders, windshields, and comprehensive claims. Here is a typical progression for a 40-year-old driver with a clean record on a mid-size sedan (2025-2026 estimates; your state and record will move these numbers):

Read that again: going from state-minimum coverage to ten times the protection plus a million-dollar umbrella costs roughly $50 a month. One at-fault accident with a single hospitalized victim routinely produces $150,000-$400,000 in damages. The $600-a-year difference is the cheapest catastrophe protection you will ever buy.

A worked example: the totaled commuter

You rear-end an SUV on a wet highway. The other driver has a concussion and a broken wrist; medical bills come to $85,000, their vehicle is a $42,000 write-off, and lost wages add $18,000. Total: $145,000. With state-minimum 25/50/25 coverage, your insurer pays $25,000 for the injury and $25,000 for the vehicle — leaving roughly $95,000 as your personal problem, collectible through judgments, liens, and wage garnishment in most states. With 100/300/100 coverage, the insurer pays all of it and you pay only your deductible for your own car. Same accident, $95,000 difference in outcome, for about $17 a month in premium.

The claims process, briefly

1. 1
   Document at the scene

   Photos of all vehicles, positions, plates, and the road. Exchange insurance details. Call police for anything beyond a trivial tap — the report anchors the fault determination.

2. 2
   Notify your insurer promptly

   Most policies require prompt notice. Report the facts plainly; do not speculate about fault or injuries.

3. 3
   Get the damage appraised

   The adjuster estimates repair cost or declares a total loss (usually when repairs exceed ~70-75% of the car's actual cash value).

4. 4
   Negotiate if the offer is low

   For total losses, pull comparable listings for your exact trim and mileage. Insurers routinely raise offers when shown better comps.

Common mistakes drivers make

• Carrying a $250 deductible while sitting on a healthy emergency fund. You're paying the insurer heavily to protect you from a loss you could absorb.
• Skipping uninsured motorist coverage. Roughly one in seven US drivers is uninsured; in some states it's over 20%. UM/UIM protects your body against their empty wallet.
• Keeping collision on a $3,000 car. If collision plus comprehensive costs $500 a year and the car is worth $3,000 minus a $1,000 deductible, you're insuring a maximum $2,000 payout at a steep price.
• Filing small claims. A $700 claim can raise your premium for three years; pay small losses yourself and save the policy for real damage.
• Letting coverage lapse between cars or policies. Even a short lapse marks you as high-risk and raises rates for years.

Reading the numbers on your declarations page

Auto liability limits are written as three numbers, like 100/300/100, and knowing what each one caps is the difference between informed coverage and a guess. The first number is the most the policy pays for any single injured person ($100,000). The second is the total for all injuries in one accident ($300,000) — so three seriously hurt passengers share that pool. The third caps property damage ($100,000), which sounds generous until you consider that a single new pickup truck or luxury SUV can exceed $80,000, and a multi-car pileup or a sideswiped storefront exceeds it easily. When people discover their coverage was inadequate, it is almost always because one of these three numbers met a reality that modern medical bills and vehicle prices made ordinary.

Uninsured and underinsured motorist coverage deserves more respect than it gets, because it inverts the usual logic: this is the coverage that protects you from other people's bad decisions. If an uninsured driver runs a light and puts you in the hospital, your health insurance covers treatment but nothing covers your lost wages, your deductibles and coinsurance, or your long-term rehabilitation — except UM/UIM. It typically adds only a modest amount to the premium, and matching it to your liability limits is the standard advice for a reason. In states with high uninsured rates, skipping it means the most careful driver on the road is the least protected person in the crash.

One habit ties the whole policy together: re-read the declarations page once a year, at renewal, with three questions. Have my limits kept up with my net worth? Has my car depreciated enough to drop collision and comprehensive? And has anything changed — a new driver, a new commute, a paid-off loan — that the insurer doesn't know about? Five minutes with one page, annually, keeps the policy matched to your actual life instead of the life you had when you bought it.