How Much Auto Insurance Do I Need?
Written by John Davis, CFP®, EA
Most people do not intentionally choose inadequate auto insurance, they simply go with whatever their agent recommends. But if you have a growing net worth or expect to accumulate wealth, it is critical to understand what your coverage actually protects and where it might fall short.
Liability Coverage: What Those Numbers Really Mean
Auto insurance liability is often expressed in three distinct numbers, such as 250/500/250. I like to call this the “slash line.”
These numbers represent specific capped limits:
$250,000 Dollars Bodily Injury per Person: If you cause an accident, this covers medical expenses for one injured individual. It can also include lost wages, rehabilitation, and in worst case scenarios, funeral expenses.
$500,000 Dollars Bodily Injury per Accident: This is the total maximum coverage for all injured parties combined from a single accident.
$250,000 Dollars Property Damage per Accident: This covers damage to other vehicles, personal belongings, and even public infrastructure such as guardrails or traffic signs.
If your coverage limits are set too low, you could be sued personally for the financial difference. That shortfall could put your savings, investments, or even your home at risk.
Medical Payments Coverage
Medical payments coverage, often called MedPay, is an optional benefit that works alongside your health insurance. It helps pay for medical expenses after an accident regardless of who caused it. This includes hospital visits, surgeries, ambulance rides, dental work, and other necessary treatments.
This coverage is especially useful for covering the deductibles and copays that your primary health insurance might leave behind.
Deductibles and Emergency Funds
Your deductible is what you pay out of pocket before your insurance policy kicks in. A higher deductible usually results in lower ongoing premium payments, but it also means you need to be ready to cover that cash amount yourself during a claim.
This is why maintaining a solid emergency fund is essential. If you can afford to pay for minor incidents without filing an insurance claim, you will keep your premiums lower and your overall claims history cleaner over time.
Comprehensive Versus Collision: Know the Difference
These specific coverages protect your own vehicle rather than other drivers:
Collision Coverage: This pays for damage to your car resulting from accidents where you are at fault or collisions with objects.
Comprehensive Coverage: This covers non collision events that are out of your control, such as theft, hail, vandalism, or damage from falling trees.
If your car is older or has a low market value, you might consider dropping these coverages. For example, if your vehicle is worth less than 5000 dollars, the annual cost of the premium might exceed the maximum potential payout you would receive after a deductible.
Uninsured Motorist Coverage: Why It Matters
Even if you drive responsibly and carry adequate coverage, others on the road may not. Recent industry studies indicate that roughly one in seven drivers are completely uninsured. If one of these drivers hits your vehicle, uninsured motorist coverage ensures you are not left paying the entire bill yourself.
If a driver does have insurance but their policy limits are too low to cover your injuries, that is where Underinsured Motorist Coverage steps in. It fills the gap between their maximum policy limit and your actual medical costs, which is especially important in serious accidents.
Got Assets? Think Umbrella Coverage
If you have accumulated significant personal assets, a standard auto policy might not provide enough safety. That is where personal umbrella insurance comes in. It adds an extra layer of liability protection, usually sold in 1 million dollar chunks, and kicks in after your primary auto or home insurance limits are completely exhausted.
A good rule of thumb is that your total liability coverage should match your personal net worth, excluding protected retirement assets like 401k plans. Umbrella policies are a highly cost effective way to shield yourself from major lawsuits.
Premium Strategies That Save You Money
Pay in larger increments: Opting for six month or annual payment terms often results in lower total premiums compared to monthly billing.
Quote multiple providers: Rates vary widely between companies, so shopping around every few years can save hundreds of dollars.
Bundle your policies: Combining your auto, homeowners, and umbrella insurance under one provider typically leads to significant multi policy discounts.
Final Thought: Insurance Is for the Unexpected
Auto insurance is designed to protect your wealth when things go wrong, whether the event is your fault or caused by nature. If someone else causes an accident, their insurance should cover the damage. But if you are found at fault, or if the damage stems from a storm or theft, your personal coverage is what stands between you and a major financial setback.
The ultimate goal is not to use your insurance, it is simply to have it locked in place when you need it most.
