Shopping for auto insurance means dealing with confusing terminology. Knowing what these terms mean helps you make better decisions, find coverage that protects you and save hundreds of dollars.
Auto Insurance Glossary
An auto insurance glossary explains common car insurance terms in simple language, making complex industry jargon easier to understand.
Find out if you're overpaying for car insurance below.

Updated: February 3, 2026
Advertising & Editorial Disclosure
Understanding terms like deductible and comprehensive coverage lets you adjust your policy and cut costs by 10% to 15%.
Understanding the difference between minimum and full coverage helps drivers avoid being underinsured in an accident.
Learning how terms like actual cash value and subrogation work prevents delays and disputes when you need your policy most.
Get the best insurance rate. Compare quotes from top insurance companies.
Auto Insurance Terms and Definitions
A
Accident
An accident is an unexpected event that causes damage or injury. In auto insurance, accidents include collisions or incidents involving a vehicle that may trigger coverage and affect your premium for three to five years, depending on severity and fault.
Accident Forgiveness
Accident forgiveness is an optional feature some insurers offer that keeps your first at-fault accident from raising your premium. It's available to drivers with clean records and either costs extra or comes as a loyalty benefit.
Actual Cash Value
Actual cash value is your car's value at the time of loss, minus depreciation. Insurance companies pay this amount for totaled vehicles, 20% to 30% less than what you originally paid.
Actuary
Actuaries analyze statistics and math to calculate insurance risk and set rates. They study driving patterns, claims history and demographics to build pricing models that affect your premiums.
Additional Insured
An additional insured is someone you add to your insurance policy who gets coverage. This includes family members, business partners or lienholders with a financial stake in your vehicle.
Adjuster
An adjuster investigates insurance claims to determine how much the insurer should pay. They assess damage, review documents and negotiate settlements. Adjusters are your main contact during the claims process and affect your compensation amount.
Agent
An agent is a licensed professional who sells insurance policies. They can be independent (representing multiple companies) or captive (representing one company). Agents help you understand coverage options, apply discounts and file claims efficiently.
Agreed Price
An agreed price is the repair cost that the insurer and repair shop settle on after you file a claim. This negotiated amount determines what your insurance company pays. If you choose a shop outside your insurer's network, you pay any difference out of pocket.
Amendment
An amendment is a formal change to an existing policy that alters its terms or coverage. These modifications add protection, change deductibles or update vehicle information. Amendments increase or decrease your premium based on risk changes.
Application
An application is the form a driver fills out when requesting insurance coverage. It collects information needed to underwrite a policy, including driving history, vehicle details and personal data that directly influences eligibility and rate.
Appraisal
An appraisal assesses your vehicle's value or damage for claim payments. You or your insurer can request this professional assessment to settle disputes about your car's worth or repair costs.
Arbitration
Arbitration resolves disputes between a driver and their insurance company without going to court. This legally binding process costs less and moves faster than litigation. A neutral third party makes the final decision about claim settlements.
Assigned Risk
Assigned risk refers to a high-risk driver who can't get coverage through standard insurers and is assigned to an insurer by the state. These policies cost 50% to 100% more than standard coverage but let drivers with serious violations maintain legal coverage.
Assured
Assured is another term for the insured person or party on an insurance policy. This person receives the policy benefits and must meet the policy's terms and conditions, including paying premiums on time.
At-Fault
At-fault means a driver is legally responsible for causing an accident, which can affect premiums and liability. Being found at fault increases premiums by 20% to 40% for several years. It also makes you financially responsible for damages to others.
Auto Damage
Auto damage refers to physical harm to a vehicle from a collision, vandalism or another event. The extent of damage determines whether your vehicle can be repaired or must be declared a total loss, affecting your claim settlement amount.
Auto Insurance
Auto insurance is a contract between you and an insurer that provides financial protection for accidents, theft or other vehicle-related losses. This coverage protects your assets from lawsuits and helps repair or replace damaged vehicles. Policies renew every six or 12 months.
B
Benchmark Rate
The benchmark rate is the base rate that regulators or insurers set to guide premium pricing. Insurers adjust this rate using your personal risk factors, location and vehicle type to calculate your premium. The industry may update these rates yearly based on claims data.
Binder
A binder is a temporary insurance contract that proves coverage before your official policy is issued. It covers you during the underwriting process and lasts 30 to 90 days.
Betterment
Betterment happens when repairs or replacements improve your property beyond its pre-loss condition. You pay for the betterment portion. For example, if your worn tires are replaced with new ones after an accident, you pay for the improved value beyond what your old tires were worth.
Bodily Injury Liability
Bodily injury liability covers medical expenses and legal fees if you're at fault in an accident injuring someone. This mandatory coverage in most states uses two numbers (e.g., 100/300, meaning $100,000 per person and $300,000 per accident) and protects your assets from costly lawsuits.
C
Cancellation
Cancellation is when an insurance policy ends before its scheduled date, either by the insurer or the policyholder. If you cancel early, you may receive a partial premium refund. Insurers often cancel policies because of missed payments or fraud.
Carrier
A carrier is an insurance company that provides coverage and underwrites policies. These financial institutions assess risk, process claims and manage reserves to ensure they can pay out claims. Their financial strength ratings indicate their ability to meet long-term obligations.
Catastrophe
A catastrophe is a major disaster like a hurricane or earthquake that causes extensive damage and triggers many insurance claims. Insurers use special claim handling procedures for these events and often apply deductibles of 1% to 5% of your car's value for certain coverage types.
Certificate of Financial Responsibility
A certificate of financial responsibility proves you carry your state's minimum required insurance. Most states use SR-22 forms for this purpose. You'll need one after serious violations like DUIs or driving without insurance.
You must keep the certificate active for three to five years. Your insurer files it with the state, and your premiums jump about 30%. If your coverage lapses, the state gets notified immediately and suspends your license.
Certificate of Satisfaction
A certificate of satisfaction confirms you accept your insurer's repair or claim settlement. This document releases your insurer from further obligations and blocks future disputes about repair quality.
Claim
A claim is your formal request for payment after a covered loss. The process includes damage assessment, coverage review and payment. Your payout timing and amount depend on your policy terms and how complex the claim is.
Claim Examiner
Claim examiners review insurance claims for accuracy and eligibility before processing them. They verify coverage, investigate what happened and check that claims follow policy terms. Their work affects your claim approval and payout.
Claim History
Your claim history tracks the insurance claims you've filed. Insurance companies use this record to gauge your risk and set your rates. Frequent or expensive claims raise your insurance costs.
Claimant
A claimant is the person making a claim against an insurance policy, either the insured or a third party. Claimants must document damage, provide statements and sometimes negotiate settlements to receive fair compensation.
Claims Documentation
Claims documentation includes the specific paperwork and evidence you must provide when filing a claim: photos of damage, police reports for accidents, receipts for repairs or replacement items and completed claim forms from your insurer. Proper documentation speeds up the claims process and ensures you receive your full payout.
Claims Settlement Procedure
The claims settlement procedure is the step-by-step process your insurer follows to resolve your claim and determine your payout. Your insurer investigates the incident, reviews your coverage, calculates damages and issues payment or explains denial reasons. Most straightforward claims settle within a few weeks once you submit all documentation, though complex claims take longer.
Collision Coverage
Collision coverage pays for damage to your vehicle from a crash with another car or object, regardless of who's at fault. This optional financial protection usually includes a deductible of $500 to $1,000. It's required for newer vehicles or those with outstanding loans.
Comparative Negligence
Comparative negligence assigns a percentage of fault to each driver in an accident, which affects claim payouts. In states following this rule, your compensation decreases by your percentage of fault. Document accidents thoroughly and collect witness statements to protect your interests.
Comprehensive Coverage
Comprehensive coverage pays for noncollision damage to your car, such as theft, fire or natural disasters. Sometimes called 'other than collision,' it covers events beyond your control and costs 15% to 30% less than collision coverage for the same vehicle.
Condition
A condition is a requirement you must meet for coverage to apply. Your obligations include reporting accidents promptly, cooperating during investigations and allowing inspections. If you don't meet these conditions, your insurer can deny your claims.
Contract
A contract or an insurance policy is a legally binding agreement between the insurer and policyholder that outlines coverage terms. It specifies what's covered, excluded and required of both parties. The declarations page, coverage forms and endorsements make up the complete contract.
Contributory Negligence
Contributory negligence means you can't recover damages if you're found even slightly at fault in an accident. Only a few states use this strict standard. If you live in one of these states, carry comprehensive coverage and drive defensively. Even a minor fault eliminates your ability to collect from other parties.
Coverage
Coverage is the financial protection your policy provides. Insurance companies group coverages by type (liability, collision and comprehensive) with set limits and exclusions. These details control what situations qualify for payment and how much you get for covered losses.
D
Damages
Damages are the money awarded for physical injury or property loss from an accident. Costs include vehicle repairs, medical bills, lost wages and sometimes pain and suffering. How damages are calculated depends on injury severity and state laws.
Declarations Page
Your declarations page lists policy details, including coverage limits, deductibles and the insured vehicle. This document serves as your quick coverage reference. Review it at each renewal to make sure it matches your current needs.
Deductible
A deductible is what you pay out of pocket before coverage starts. Picking a higher deductible (between $500 and $2,000) lowers your premium but raises your costs when you file a claim. Choose a deductible that balances your monthly budget with what you can afford in an emergency.
Defensive Driving
Defensive driving courses teach techniques that earn you insurance discounts of 5% to 15%. Most insurers cut rates for completing state-approved programs.
Depreciation
Depreciation is how much a vehicle loses in value over time due to use, age and miles driven. This decline averages 15% to 25% in the first year and 15% to 18% each year after. Depreciation affects claim payouts for total losses since insurance covers actual cash value, not replacement cost.
Diminished Value
Diminished value is the drop in a vehicle's market value after it's been damaged and repaired. Even when repairs fully restore the car's function, its accident history lowers resale value. Some policies cover this loss, but many don't.
Discount
Discounts lower your premium based on good driving, bundling or vehicle safety features. Savings range from 5% to 25% and include multi-policy, good student, safe driver and anti-theft discounts. Ask your agent about all available discounts to maximize your savings.
Drive-In
Some insurers run drive-in locations where you bring your car for damage inspection after an accident. These facilities speed up claims with quick, standard assessments and often pay you on the spot for minor damage.
E
Earned Premium
Earned premium is the portion of your premium your insurer has "earned" based on how long your policy's been active. If you cancel early, this determines your refund: the unearned portion minus cancellation fees.
Effective Date
Your effective date is when your auto insurance starts. This date matters when you switch policies or buy a car to avoid coverage gaps.
Emergency Road Service Coverage
Emergency road service coverage pays for roadside help like towing, flat tire repair and jump-starts. It costs $5 to $15 per six-month period and saves you $50 to $100 per service call.
Endorsement (or Rider)
An endorsement, or rider, is an optional add-on that changes or extends your coverage. Endorsements protect custom equipment, pay for rental cars or cover the gap between what you owe and your car's value. They customize your policy beyond standard coverage.
Estimate
An estimate is a written assessment of repair costs. It lists parts, labor and materials needed. Insurance companies require one or more estimates before approving payments.
Exclusion
An exclusion is what your policy won't cover. Common exclusions include intentional damage, mechanical breakdowns and racing. Your policy lists these limitations to avoid confusion when you file a claim.
Expiration Date
The expiration date is when your policy ends unless you renew it. Policies renew automatically if you've set up continuous coverage. Missing payments before this date creates coverage gaps and raises your rates.
F
FAIR Plan
FAIR Plans are state-mandated insurance programs providing basic coverage to high-risk properties when standard insurers won't provide coverage. These plans cost 25% to 50% more than standard policies.
Financial Responsibility Law
Financial responsibility laws are your state's requirement to prove you can pay for damage you cause in accidents. You satisfy this requirement by carrying minimum liability insurance or posting bonds with state authorities.
First Party
The first party is the policyholder or insured person under the contract. This person has direct rights under the policy, including filing claims, receiving payments and making coverage changes. Their responsibilities include paying premiums and reporting accurate information.
Full Coverage Insurance
Full coverage insurance combines liability coverage plus comprehensive and collision coverage. It doesn't increase liability limits but adds physical damage protection to your liability policy.
G
Gap Insurance
Gap insurance covers the difference between what you owe on your car loan or lease and the car's actual cash value if it's totaled. This coverage costs about $20 to $40 yearly and is especially valuable for new vehicles, which lose 20% to 30% of their value in the first year while loan balances decrease more slowly.
H
Hazard
Hazards like icy roads and poor lighting increase the likelihood of a loss. Insurers assess these risk factors when determining rates and coverage eligibility. Some hazards, such as regular mountain driving or street parking in high-theft areas, may increase your premiums.
Hit and Run Coverage
Hit and run coverage protects you when the at-fault driver leaves the accident scene. Your state's laws determine whether this falls under uninsured motorist coverage or collision coverage.
I
IBNR (Incurred But Not Reported)
IBNR (Incurred But Not Reported) is an insurance industry term for claims that have occurred but haven't been reported yet. Insurers set aside reserves for these anticipated claims when calculating rates.
Indemnity
Indemnity means the insurance company compensates you to restore your financial situation to what it was before the accident or damage. It covers repairs or replacements at their current value but doesn't pay extra for upgrades or improvements.
Insurable Interest
Insurable interest means you'd suffer a financial loss if the insured car were damaged or lost. This legal requirement for valid insurance prevents people from profiting from insurance on property they don't own. You have insurable interest if you own, lease or have a loan on a vehicle.
Insurance Fraud
Insurance fraud involves false claims or misrepresentations made to gain benefits from a policy. This criminal offense includes exaggerating damage, staging accidents and filing false claims. It costs the industry $40 billion yearly and leads to higher premiums for all drivers.
Insurance ID Card
An insurance ID card proves you have the required coverage and is usually needed for driving or registering a car. This document shows your policy number, effective dates and covered vehicles. Keep it in your vehicle to show during traffic stops or accidents.
Insurance Score
Insurance scores are credit-based numbers insurers use to determine your premium. This rating measures how likely you are to file claims based on your financial behaviors and influences rates by 20% to 50%. Better credit results in lower premiums in most states.
Insured
The insured is the person or entity covered under the auto insurance policy. This individual or organization receives the financial protection and benefits outlined in the policy and must follow policy terms to maintain coverage.
Insurer
The insurer is the company that provides your coverage. This regulated financial institution collects premiums, assesses risks, processes claims and maintains financial reserves to meet its obligations to policyholders during catastrophic events.
L
Lapse
A lapse is a break in auto insurance coverage due to missed payments or nonrenewal. Coverage gaps lead to legal penalties, suspended vehicle registration and 10% to 30% higher rates when you get insurance again. Maintain continuous coverage to avoid these issues.
Legal Liability
Legal liability means you're legally responsible for harming others or their property through your actions or negligence. In auto insurance, you must compensate others for damage you cause.
Many states use comparative negligence, where fault splits between parties. A few states follow contributory negligence rules, where any fault on the victim's part eliminates your liability.
Liability Coverage
Liability coverage pays for injuries and damage you cause to others in an accident. Most states require this coverage, which includes separate limits for bodily injury and property damage to shield your assets from lawsuits.
Liability Examiner
Liability examiners review claims to determine who is at fault and financially responsible. They study police reports, statements and evidence to determine who caused an accident. Their decision affects whose insurance pays and whether your rates increase.
Lien
A lien is a legal claim on your vehicle, usually held by a lender until you pay off your loan. The lienholder may require comprehensive and collision coverage and must be listed as a loss payee on claims checks.
Lienholder
A lienholder is the lender or financial institution with a financial interest in your vehicle. The lienholder must be listed on your policy and notified of coverage changes. Claims payments for major damage often require the lienholder's endorsement to protect its investment.
Loss
A loss is damage or injury that leads to an insurance claim. To qualify for payment, the event must fall under covered perils. The frequency and severity of past losses directly affect your future premiums.
Loss of Use
Loss of use coverage pays for rental cars, rideshares or public transportation while your car is in the shop after a covered loss.
M
Material Damage
Material damage refers to physical harm to a vehicle or property. Adjusters evaluate damage ranging from minor scratches to major structural issues to estimate repair costs and determine if the vehicle can be safely restored to its pre-accident condition.
Material Misrepresentation
Material misrepresentation means providing false information that affects your insurer's decision to provide coverage or set rates. Insurers void policies for material misrepresentation, whether you made the error intentionally or accidentally.
Mechanical Breakdown Insurance
This optional coverage works like an extended warranty and covers gaps left by standard policies, which exclude wear and tear or mechanical issues. It can save you thousands on major repairs.
Medical Claim Examiner
A medical claim examiner reviews injury-related medical expenses and documents. These specialists check if treatments are necessary, reasonably priced and related to the accident. Their assessment determines how much of your medical bills will be covered.
Medical Payments Coverage
This coverage pays you and your passengers for medical expenses after an accident, regardless of who caused it. This optional financial protection comes in amounts from $1,000 to $25,000 and supplements health insurance by covering deductibles and copays without determining fault.
Merit Rating
Merit rating is the system insurers use to adjust rates based on your driving record and claims history. Good drivers receive discounts while those with violations pay surcharges.
Misrepresentation
Misrepresentation means giving false or misleading information when you apply for insurance. This voids your coverage, intentional or not, and gets your claims denied and policy canceled. Share accurate information about your driving history and vehicle use to avoid these problems.
Motorcycle Insurance
Motorcycle insurance covers liability and physical damage for motorcycles and similar vehicles. Rates reflect riders' higher injury risk and seasonal use.
N
Named Insured
The named insured is the primary person on an insurance policy who can make changes, file claims and receive notifications. Other household members are often covered but have limited policy management rights.
Negligence
Negligence is the failure to exercise reasonable care, leading to damage or injury. Insurers consider negligence a primary factor when determining fault in accidents because drivers must follow traffic laws and operate vehicles safely to avoid liability.
No-Fault Insurance
No-fault insurance pays your medical expenses and lost wages after an accident, regardless of who caused it. This system, used in 12 states plus Puerto Rico, speeds up injury payments by removing the need to prove fault for basic medical claims. It limits your right to sue except for serious injuries.
Non-Owner Policy
A non-owner policy gives liability coverage to drivers who don't own cars but sometimes drive others' vehicles. This affordable option ($200 to $500 yearly) protects against liability claims when borrowing or renting cars and helps maintain continuous insurance history.
Nonrenewal
Nonrenewal means your insurance company decides not to continue your policy when it expires. The company must give you advance notice (usually 30 to 60 days). This happens because of your claims history, driving violations or company policy changes. You'll need to find new coverage before your financial protection ends.
O
OEM Parts vs. Aftermarket
Original Equipment Manufacturer (OEM) parts are made by your car's manufacturer, while aftermarket parts come from other companies. OEM parts cost more but insurers or lenders may require them for newer vehicles.
Occurrence
An occurrence is a single event that results in a claim. Insurance policies define what counts as a separate occurrence, which affects deductible application and policy limits. Multiple damages from the same cause count as one occurrence.
Overseas Insurance
Overseas insurance covers vehicles while traveling or stationed outside the U.S. Standard auto policies don't cover international driving. This specialized coverage addresses risks like different liability standards and higher repair costs in foreign countries.
P
Paperless Billing
Paperless billing sends your bills and policy documents electronically instead of by mail. This environmentally friendly option includes a small discount (1% to 3%), provides faster document delivery and reduces paper clutter.
Payment Plans
Payment plans let you break your premium into monthly or quarterly installments. These options usually include a small service fee of $3 to $10 per payment but make coverage more affordable by spreading costs over time instead of requiring one large payment.
Payment Recovery
Payment recovery happens when your insurer seeks money from another party responsible for your loss. Also called subrogation, this process may refund your deductible if your insurer successfully collects from the at-fault party.
Per-Occurrence vs. Aggregate Limits
Per-occurrence limits cap payouts for single incidents. Aggregate limits cap total payouts over your policy period. Understand both to avoid coverage gaps.
Per-Claim Limit
The per-claim limit is the maximum your insurer pays for a single covered incident. This differs from aggregate limits, which cap total payouts over your policy term.
Peril
A peril is what causes a loss, like theft or fire. Insurance policies cover all perils except excluded ones (comprehensive coverage) or only listed perils (named peril coverage). Knowing the difference shows you what your policy covers.
Personal Injury Protection (PIP)
Personal injury protection covers medical expenses, lost income and other costs after an accident, regardless of fault. Mandatory in no-fault states and optional elsewhere, it provides fast payments for injuries and covers services not included in health insurance.
Personal Property
Personal property includes items inside your vehicle that aren’t part of the car itself. Standard policies cover these belongings up to $200 to $500. Homeowners or renters insurance better covers higher-value items like electronics.
Physical Damage
Physical damage refers to harm to your vehicle’s body, engine or systems. It includes collision and comprehensive claims, with coverage depending on the cause of damage and the deductible.
Policy
A policy is a contract outlining your auto insurance coverage. This legal document includes declarations, coverages, exclusions and conditions that together define your financial protection and obligations. When all forms are included, it runs 20 to 50 pages.
Policy Change
A policy change modifies your coverage terms, limits or listed drivers. You can make these adjustments midterm. They increase or decrease your premium depending on whether they add risk (e.g., adding a teen driver) or reduce it (e.g., increasing deductibles).
Policy Period
The policy period is when your insurance is active. It runs six or 12 months with guaranteed rates. At renewal, rates change based on your claims, violations or industry trends.
Policyholder
The policyholder owns and manages the insurance policy. You're responsible for paying premiums, getting notifications and making coverage changes or canceling.
Policy Limit
A policy limit is the maximum an insurer pays for a covered loss. Limits apply separately to different coverage types: per-person, per-accident or total aggregate caps.
Pre-Accident Condition
Pre-accident condition is your vehicle's state before damage occurred. Insurers must restore your vehicle to this condition, excluding pre-existing damage or wear.
Premium
Your premium is what you pay for insurance coverage based on your driving history, vehicle type and location. You can pay in full or through installments. Your premium reflects the risk you pose to your insurer.
Primary Insurance
Primary insurance pays first when you have multiple policies covering the same loss. It handles claims before secondary or excess policies kick in. Rules prevent double recovery.
Proof of Loss
Proof of loss is documentation submitted to support a claim showing what was lost or damaged. It may include photos, repair estimates and purchase receipts to establish the claim's value. Submit proof of loss within specified timeframes.
Property Damage Liability
Property damage liability pays for repairs to others' property you damage in an accident. This required coverage protects you when you damage another vehicle, building or fixed object. State minimums range from $5,000 to $25,000, though these amounts don't always cover costly claims.
Proximate Cause
Proximate cause is the event directly responsible for a loss or injury. Insurers use proximate cause to determine coverage by establishing whether damage resulted from a covered peril or an excluded cause, which affects whether your claim gets paid.
Pure Premium
Pure premium is the basic coverage cost before insurers add expenses and profit. Actuaries use this baseline figure to calculate your final rates.
Q
Quote
A quote estimates your insurance premium based on your information. This personalized calculation reflects your risk and coverage choices. Final rates can change if verification shows different information than what you provided.
R
Rate
A rate is the pricing factor insurance companies use to calculate your premium. They combine base rates with your risk factors and file them with state regulators for approval.
Rating Plan
Insurance companies use rating plans to set premiums based on risk. The system weighs driving history, vehicle type and location to create personalized pricing. Each company emphasizes different factors.
Reinspection
Reinspection is a follow-up check of your vehicle's damage or repairs. This quality control step confirms repairs match the approved estimate and meet standards. It protects you and your insurer from shoddy work.
Reinstatement
Reinstatement restores a canceled policy. It requires paying past-due premiums and fees so your coverage continues without a new application. Reinstated policies don't cover losses during the lapsed period.
Release
A release is a legal document that ends your right to further claims once you accept a settlement. Insurers require you to sign one before paying you for a total loss or injury. This blocks you from seeking more money for the same incident later.
Renewal Date
Your renewal date marks when your insurance policy ends and a new term begins. Insurers review risk profiles and adjust premiums at renewal. Review your coverage and shop for better rates before renewal to avoid coverage gaps or automatic renewal at higher rates.
Rental Reimbursement
This coverage pays for a rental car while your vehicle is being repaired after a covered loss. Costing $2 to $5 monthly with limits like $30 per day for up to 30 days, this affordable add-on prevents out-of-pocket transportation costs during lengthy repairs.
Repair Guarantee
A repair guarantee is a promise insurers make when you use their approved shops. They stand behind the work for as long as you own the car.
Residual Market
The residual market is a state-run insurance system that covers high-risk drivers who can't get regular insurance. It includes assigned risk pools and state programs.
Retained Limit
The retained limit is what you pay before umbrella insurance begins. It matches your regular policy limits and connects your primary and excess coverage for major liability claims.
Risk
Risk is the chance of loss or damage that insurers measure to set prices. They use statistics and past data to calculate these probabilities. Your risk factors shape your rate.
Risk Pool
A risk pool groups high-risk drivers whose coverage costs are split among insurance companies in a state. This guarantees coverage for drivers with serious violations.
S
Salvage
Salvage is what's left of a totaled vehicle that can be auctioned. This leftover value, usually 20% to 40% of the car's worth before the accident, gets subtracted from your payment when the insurer takes ownership of your totaled car.
SR-22
An SR-22 is a certificate of financial responsibility that your insurance company files with your state's DMV to prove you carry the required minimum coverage. States require SR-22s after serious violations like DUIs, reckless driving or driving without insurance.
The filing happens automatically through your insurer, but you'll pay an additional filing fee plus higher premiums. Most states require SR-22 maintenance for three to five years. Any coverage lapse triggers immediate license suspension.
Subrogation
Subrogation happens when your insurer seeks payment from the at-fault party's insurer after paying your claim. This behind-the-scenes process can refund your deductible and prevent premium increases when someone else caused the accident.
Surcharge
Surcharges raise premiums after violations like at-fault accidents, DUIs or major traffic offenses. Minor violations like speeding tickets add 10% to 25% to base rates. Major violations like DUIs raise premiums 50% to 100%. Surcharges last three to five years, depending on the violation and state.
Surplus Lines
Surplus lines are insurance policies sold by non-state-licensed insurers for high-risk or unusual coverage needs. These markets serve drivers who can't get regular insurance because of extreme risk. Unlike standard insurance, surplus lines aren't protected by state guarantee funds.
T
Theft
Theft is the unauthorized taking of your vehicle or property. For a comprehensive coverage claim, you need a police report and proof of ownership. Insurers settle theft claims at your vehicle's actual cash value or the replacement cost for stolen items.
Third Party
A third party is someone other than you or your insurer who can file a claim under your policy. These are drivers or property owners you've damaged in an accident. They have rights under your liability coverage, even though they aren't part of your insurance contract.
Tort
A tort is a harmful action that legally holds someone responsible for causing injury or property damage. This legal concept is the basis for insurance claims. Courts determine who's at fault and how much money the injured person should receive after an accident.
Total Loss
A total loss occurs when repair costs exceed your vehicle's actual cash value. Insurers declare total loss when repairs hit 70% to 80% of pre-accident value. Instead of paying for repairs, your insurer offers a market value settlement and takes ownership of the damaged vehicle.
Towing and Labor Coverage
Towing and labor coverage pays for towing and roadside services when your car breaks down. It costs about $5 to $15 for six months and saves you money on emergency service calls for problems like lockouts, dead batteries and mechanical failures.
U
Umbrella Insurance
Umbrella insurance adds extra liability protection beyond your regular policy limits. This added coverage, usually sold in $1 million increments for $150 to $300 per year, helps protect your assets from major lawsuits.
Uninsured/Underinsured Motorist Coverage
This coverage pays for injuries or property damage when an at-fault driver has no or too little insurance. Though optional in most states, we recommend this coverage to protect you from financially irresponsible drivers who can't pay.
Underwriting
Underwriting is how insurance companies assess risk and set your rates. Underwriters review your application, driving record, credit history and vehicle details to determine your price and coverage options.
Uninsured Motorist Coverage
Uninsured motorist coverage pays for injuries or property damage when at-fault drivers have no insurance. It's mandatory in many states and provides budget-friendly financial protection against irresponsible drivers.
V
Vehicle Identification Number (VIN)
The Vehicle Identification Number (VIN) is a unique 17-digit code that identifies your car. This ID shows your vehicle's manufacturer, features and history. It helps insurers correctly rate your vehicle and process claims for the right model.
Auto Insurance Terms and Definitions: Bottom Line
Understanding auto insurance terms lets you manage coverage and communicate with your insurer more effectively. These definitions make reviewing your policy or filing a claim easier and show you where to save money on coverage.
Get the best insurance rate. Compare quotes from top insurance companies.
Car Insurance Glossary: FAQ
These frequently asked questions clarify common car insurance terms to help you better understand your policy and coverage options.
How do auto insurance requirements vary by state?
Each state sets different minimum liability limits and coverage types. Florida requires $10,000 personal injury protection, while New Hampshire doesn't mandate insurance if you prove financial responsibility. Check your state's DMV website for specific requirements and penalties.
What's the difference between underinsured and uninsured motorist coverage?
Uninsured motorist covers you when at-fault drivers have no insurance. Underinsured motorist pays when they carry some insurance but not enough for your damages. Both protect against the 1 in 8 drivers nationwide who lack adequate coverage.
What states require no-fault insurance and how does it work?
Twelve states plus Puerto Rico require no-fault insurance: Florida, Hawaii, Kansas, Kentucky, Massachusetts, Michigan, Minnesota, New Jersey, New York, North Dakota, Pennsylvania and Utah. Your insurance pays medical expenses and lost wages regardless of fault through mandatory personal injury protection.
Do I need gap insurance if I have comprehensive and collision?
Yes, if you owe more than your car's worth. Comprehensive and collision pay actual cash value, but gap covers your remaining loan balance. New cars lose 20% to 30% value in year one, making gap coverage particularly valuable early on.
How does the claims settlement procedure work step-by-step?
Report your claim within 24 hours, then document damage with photos and police reports. An adjuster inspects damage within two to five days and provides repair estimates. Choose a shop, get repairs done and receive settlement. Most claims resolve within 2 to 3 weeks.
Which optional auto insurance coverages are worth buying?
Gap insurance ($200 to $400 yearly) for financed vehicles, roadside service ($15 to $50 per six months), rental reimbursement ($15 to $40 per six months) and accident forgiveness ($40 to $80 yearly). These add-ons provide valuable protection at reasonable costs.
What should I do if my insurance claim is denied?
Review your policy's exclusions to understand why the claim was denied. Contact the insurance adjuster with additional documentation or questions. File a complaint with your state insurance department if needed. Request a written explanation citing the policy language supporting the insurer's decision.
Learn More About Car Insurance Terms
About Mark Fitzpatrick

Mark Fitzpatrick, a Licensed Property and Casualty Insurance Producer, is MoneyGeek's resident Personal Finance Expert. He has analyzed the insurance market for over five years, conducting original research for insurance shoppers. His insights have been featured in CNBC, NBC News and Mashable.
Fitzpatrick holds a master’s degree in economics and international relations from Johns Hopkins University and a bachelor’s degree from Boston College. He's also a five-time Jeopardy champion!
He writes about economics and insurance, breaking down complex topics so people know what they're buying.






