Liability insurance covers you if you’re in an accident deemed to be your fault. It will cover repairs to damaged property, as well as medical bills resulting from injury to the other driver and their passengers. Most states require at least a minimum amount of liability insurance, but it’s a good idea to purchase extra protection if you can afford it.
The cheapest car insurance, period, will likely carry the minimum coverage required in your state. In most states, this is liability insurance only, which covers property damage and medical bills for others due to accidents you cause. Some states also require uninsured and underinsured motorist coverage, which pay for your injuries or damage if an at-fault driver doesn’t have enough insurance.