There is no universal car-insurance limit that fits every driver.
Start with the coverage your state requires and any coverage your lender or lease requires. Then choose liability limits, physical-damage coverage and deductibles based on the losses you could not comfortably pay yourself. Use the Risk Management guide to review car coverage alongside other risks to your finances.
What the main coverage types do
| Coverage | What it generally pays for | What to check |
|---|---|---|
| Bodily injury liability | Covered injuries you are legally responsible for causing to other people. | State minimums, per-person/per-accident limits and how much financial exposure you want the policy to absorb. |
| Property damage liability | Covered damage you cause to another person’s vehicle or other property. | State minimum and higher available limits. |
| Uninsured/underinsured motorist | Covered losses when the at-fault driver has no insurance or not enough insurance, subject to state and policy rules. | Whether your state requires or offers it, limits, deductible and what types of loss are covered. |
| PIP or medical payments | Covered medical costs and, in some systems, related losses for you or passengers. | State no-fault rules, existing health coverage, limits and exclusions. |
| Collision | Covered physical damage to your vehicle from a collision. | Vehicle value, lender/lease requirement, deductible and annual premium. |
| Comprehensive | Covered non-collision damage such as theft, fire, weather, vandalism or certain animal/glass losses. | Vehicle value, lender/lease requirement, deductible and exclusions. |
| Optional add-ons | May include rental reimbursement, towing, roadside help or GAP coverage. | Whether you already have the service elsewhere, limits, waiting periods and cost. |
How much liability coverage should you carry?
NAIC guidance says liability needs should reflect the assets and financial exposure you have to protect, while state law sets the minimum you must buy. That means a single national number such as 250/500/100 should not be presented as the right answer for everyone.
- Find your state’s minimum. Use the state insurance department, not an old article or quote-comparison page.
- Price several higher limits. Ask insurers for the annual premium at multiple liability levels so you can see the actual cost difference.
- Think about a severe loss, not the average fender-bender. Liability insurance matters most when the loss is larger than you could pay without disrupting the rest of your finances.
- Coordinate with umbrella coverage if you have it. An umbrella insurer may require underlying auto liability limits before the umbrella policy applies.
If you have substantial assets, business exposure, a high income to protect or unusual driving circumstances, ask a licensed agent or insurer to show how different limits change your exposure rather than relying on a generic number.
Choose a deductible you could pay tomorrow
A higher collision or comprehensive deductible can reduce the premium, but the deductible is money you must supply when a covered claim triggers it. The useful deductible is not simply the highest option available.
Compare the premium difference
Ask how much the annual premium changes at each deductible option. Do not assume a higher deductible creates large savings.
Check your cash reserve
Choose an amount you could pay without missing housing, food, medicine or required debt payments and without immediately using high-cost debt.
If a larger deductible would be difficult to fund, use the Emergency Fund guide to build a repair-and-deductible reserve rather than raising the deductible first and hoping the cash appears later.
Do you still need collision and comprehensive?
A lender or lessor may require both. If the vehicle is paid off, compare the premium and deductible with the car’s current value and with your ability to replace or repair it after a loss.
Do not use a rigid rule such as “drop coverage when the premium reaches X% of the car’s value.” Consider what the insurer would pay after the deductible, what losing the vehicle would do to work or family transportation, and whether you have cash to replace it.
Uninsured motorist, PIP and medical payments are state-specific
NAIC notes that uninsured/underinsured motorist and medical coverages vary by state, and no-fault states can require personal injury protection. These coverages can overlap with health insurance or other protection in some situations, but they do not work identically.
Ask the insurer or state regulator which coverages are required, which are optional, what the limits are, and what happens after a hit-and-run or crash with an underinsured driver.
Compare quotes using the same inputs
A cheaper quote is not cheaper if it quietly uses lower limits or higher deductibles. The NAIC shopping tool specifically recommends comparing the same or similar coverages and limits across insurers.
Quote-comparison checklist
- Same drivers and household information
- Same vehicle and annual mileage assumptions
- Same bodily injury and property damage limits
- Same UM/UIM limits
- Same PIP or medical-payments coverage when applicable
- Same collision deductible
- Same comprehensive deductible
- Same rental, towing or GAP add-ons
- Same payment frequency when comparing total annual cost
- Discounts actually applied, not merely advertised
Discounts can help, but do not build the policy around them
Insurers may offer discounts for multiple policies, certain driving records, defensive-driving training, student status, mileage, vehicle features or other factors. Availability and eligibility differ by insurer and state.
Ask for the price both before and after discounts and compare the final annual premium. A bundle is useful only when the combined coverage and price are better for your needs.
Review coverage after major changes
- Buying, selling or paying off a vehicle
- Moving to another state or address
- Adding a teen or other household driver
- Starting delivery, rideshare or other business use
- Changing annual mileage or commute
- Buying a home or umbrella policy
- A major change in savings or assets
Also review who is listed as a driver, where vehicles are garaged and whether your policy assumptions still match actual use. Incorrect information can affect pricing or claims.
How car insurance fits the rest of your financial protection
Insurance transfers part of a loss to an insurer; it does not remove every risk. Use the Insurance and Financial Security guide to place auto coverage beside health, disability, home/renters and liability protection, and the Insurance Terms Glossary when comparing policy language.
If you have a vehicle loan, use the Car Loans guide to separate financing costs from insurance requirements.
Frequently asked questions
Are state minimum limits enough?
They satisfy the legal minimum, but they may not cover the full cost of a serious crash. Price higher limits and evaluate what loss you would have to absorb after the policy limit is exhausted.
Should everyone have a $1,000 deductible?
No. Choose a deductible you could realistically pay after a claim. Compare the annual premium difference before deciding whether the higher deductible is worth it.
Do I need collision and comprehensive on an older car?
Not always, but the decision depends on lender requirements, current vehicle value, premiums, deductibles and whether you could replace or repair the car yourself.
What does “full coverage” mean?
It is not a standardized guarantee that every loss is covered. It is commonly used to describe liability plus collision and comprehensive, especially when a lender requires physical-damage coverage. The policy terms and limits control.
Primary sources
MoneyBucket provides general educational information, not individualized insurance, legal or financial advice. Coverage requirements and policy terms vary by state, insurer, vehicle and household. Confirm current requirements with your state insurance department and insurer.