Auto Insurance
What each coverage actually does, how premiums are set, and which decisions genuinely move the price.
The coverages, and what each one is for
Liability pays other people for injury and property damage you cause; it protects your assets, not your car. Collision and comprehensive pay for your own vehicle. Medical payments and personal injury protection cover treatment regardless of fault. Uninsured and underinsured motorist coverage pays when the at-fault driver has too little insurance, which in serious injuries is more often than people expect.
How the premium is actually built
Insurers start from a base rate for your ZIP code and vehicle, then apply factors: age, driving record, annual mileage, coverage limits, deductible and — in most states — a credit-based insurance score. The factors multiply rather than add, which is why two changes together move the price more than either alone.
Deductible decisions
Raising a deductible lowers the premium, but only helps if the difference is genuinely available in cash at the moment of a loss. The step from a low deductible to a middle one usually offers the best value; going higher buys progressively smaller savings for progressively larger exposure.
Limits are the decision that matters
Cutting liability limits is the fastest way to lower a premium and the worst. Damages above your limits are your personal exposure, and injury claims routinely exceed state minimums. A common approach is to carry enough liability coverage to protect your net worth, then economise elsewhere.
What happens when you claim
The adjuster inspects, values the loss, and applies depreciation where the policy settles on actual cash value. If repair cost plus salvage exceeds the vehicle's value, it is declared a total loss and the insurer pays value rather than repair. That valuation is negotiable, and comparable local listings are the evidence that moves it.
The cost of claiming
A single at-fault claim can trigger a surcharge lasting three to five years. For losses near the deductible, the surcharge often exceeds the payout, which is the arithmetic behind the advice not to claim for minor damage.
Common questions
Why did my premium rise without a claim?
Rates are filed by territory and can rise for everyone when regional claim costs rise. Vehicle repair costs and weather losses both feed into that.
Is full coverage a real thing?
It is a marketing phrase, not a policy type. Ask which specific coverages and limits are included.