In the vast majority of states, driving without car insurance is illegal. You must purchase at least the minimum required types and levels of coverage in your state; if you don’t, you could be fined and have your license suspended. If you cause an accident and don’t have insurance, you’ll be personally responsible for the damages and injuries you cause. Even if your budget is tight, purchasing car insurance is an important step in your financial planning. If your bill is too high, you may be able to lower your premium by taking advantage of discounts, shopping around and evaluating your coverage.