How Much Does Car Insurance Go Up After an Accident?

Key Takeaways:

• Illinois drivers typically face a 41% to 49% premium increase after an at-fault accident, which can stay on their record for three to five years.
• Because Illinois is a tort liability state, your rate impact depends heavily on the accident investigation and fault determination.
• Under 735 ILCS 5/2-1116, being partially at fault can still trigger a rate hike, even if you are less than 50% responsible.
• Features like small, large, and progressive accident forgiveness can shield your automobile insurance policy from sudden spikes if you have a clean history.

In Illinois, your insurance rates will likely go up by 40% to 50% after an at-fault accident. While every insurance provider uses its own rules, a typical driver in Chicago may see their annual insurance costs jump by $800 to $900 or more. At Conboy Law Firm, we know that a car accident is stressful enough without the fear of a massive rate hike. We help victims navigate the aftermath of a crash and understand how state laws impact their insurance policy. Our goal is to ensure you are treated fairly by insurance companies while you focus on your recovery.

The Core Question: Average Insurance Premium Increases in Illinois

When you are in a crash, the first thing you worry about is your car. The second thing is often your wallet. Insurance rates in the Chicago area are already high due to heavy traffic. An accident can push those costs even further.

General Statistics: What to Expect in Illinois

In 2026, the average cost of full coverage insurance in Illinois is about $2,483 per year. If you are found to be at fault, that number can quickly soar. Data from the Illinois Department of Insurance and major car insurers show that:

• A minor at-fault crash (property damage only) usually causes a 15% to 25% increase.
• A major at-fault accident involving injuries can cause a 40% to 50% spike in premiums.
• Multiple accidents within three years can result in a 100% increase or even a policy cancellation.

Why How Much Isn't a Simple Answer: The Complexity of Risk Assessment

Your insurance provider does not just look at the crash. They use a risk assessment to decide how likely you are to have another accident. They look at the claim amount, the type of damage, and even your credit score. If the insurer considers you a high-risk driver, your rate will increase. This is why two people in the same accident might see different changes to their insurance costs.

The Driving Record: A Primary Indicator for Rate Adjustments

Your driving record is like a report card for the road. If you had a clean driving history before the crash, your insurer might be more lenient. However, if your record already has tickets or other auto accidents, a new claim will be much more expensive. In Illinois, an accident usually stays on your driving record for three to five years, affecting your rates the entire time.

Fault is Paramount: Tort Liability and Comparative Negligence System in Illinois

Illinois is a fault state. This means the person who caused the accident is responsible for the damages. This system has a huge impact on your insurance claim.

Understanding Fault-Based System and Tort Liability in Illinois

Under a fault-based system, also known as tort liability, the at-fault driver's liability insurance pays for the other person's injuries and car repairs. Because the insurer has to pay out on a claim, they raise the driver's premiums to cover the loss.

At-Fault Accidents: The Biggest Impact on Your Premiums

An at-fault crash is the most expensive event for your insurance. Even if the damage is just dents and scratches, filing a claim signals to the company that you are a risk. Most insurance companies will apply a surcharge to your automobile insurance policy at your next renewal.

Not-at-Fault Accidents: When Your Rates Might (or Might Not) Change

If you were not at fault, your rates should generally stay the same. Illinois law does not strictly ban rate hikes for not-at-fault claims, but most car insurers refrain from penalizing you if someone else hits you. However, if you live in a high-crime area or have many not-at-fault claims, your insurer might still raise your base rate.

Illinois' Comparative Negligence Laws: How Partial Fault Works

Illinois uses comparative fault rules. Specifically, 735 ILCS 5/2-1116 follows Illinois' comparative negligence laws. This means if you are 20% at fault for a crash, you can still recover 80% of your damages. However, being even partially at fault can still trigger a rate hike. Your insurance information will show that you shared the blame, which affects your risk level.

The Role of Accident Investigation and Police Reports

After a crash, insurance adjusters will conduct an investigation into the accident. They look at witness statements, photos, and the police report. The Illinois Vehicle Code requires a police report for any accident with injuries or over $1,500 in damage (625 ILCS 5/11-406). This report is a vital piece of insurance information that helps determine fault and future rates.

Key Factors That Influence Your Illinois Rate Hike

Not every at-fault accident results in the same premium increase. Insurance companies use complex math, known as risk assessment, to decide your new rate. In Chicago, where traffic is dense, these factors are even more critical.

Accident Severity and Claim Amount

A small fender bender with only dents and scratches will have a different impact than a high-speed collision. If the claim amount is low (often under $500 or $1,000), some car insurers may apply a smaller rate hike. However, if personal injury claims are involved, the increase will be much steeper because medical costs are high.

Your Driving History and Driving Record

Your driving record acts as your reputation on the road. If you have a clean driving history for the last five years, your insurance provider may view the crash as a one-time mistake. If you already have speeding tickets or prior auto accidents, you will be labeled a high-risk driver, which can lead to much higher insurance costs.

Your Specific Insurance Provider and Policy Type

Every company follows its own auto editorial guidelines and internal rules. Some car insurers are known for being more accident-friendly, while others aggressively raise rates. Your specific automobile insurance policy, whether it includes liability insurance, collision, or uninsured motorist coverage, also dictates how the claim is processed and priced.

Your Demographics and Location

Where you live in Illinois matters. Drivers in Chicago typically pay more than those in rural areas like Peoria or Rockford because the risk of a car accident is higher in the city. Factors like your age and credit score also influence how much your insurance rates jump.

How Long Does an Accident Affect Your Insurance Rates in IL?

In Illinois, an accident usually stays on your record for three to five years. Most insurance companies will charge you a surcharge for at least three years. If you maintain a clean record during that time, you may see your rates start to drop back down.

Accident Forgiveness Programs: Your Potential Shield Against Rate Hikes

One of the best ways to avoid a rate hike is to opt for accident forgiveness. This is a feature that allows the insurer to agree not to raise your rates after your first at-fault accident.

What is Accident Forgiveness?

Accident forgiveness is an optional benefit that forgives your first mistake. It doesn't remove the crash from your state driving record, but it stops the insurer from adding a surcharge to your insurance policy.

How Accident Forgiveness Works in Illinois

Most companies require you to be accident-free for three to five years to qualify. You usually have to have the program on your policy before the crash happens; you cannot buy it afterward to cover a recent claim.

Types of Accident Forgiveness

Many major insurers, like Progressive or Allstate, offer tiered levels of protection:

• Small Accident Forgiveness: This typically waives a rate hike if the total claim amount is under a certain limit, such as $500.
• Large Accident Forgiveness: This covers your first major at-fault accident, regardless of the cost, provided you have been a loyal customer for several years.
• Progressive Accident Forgiveness: Some companies offer forgiveness through a loyalty rewards program or a small monthly fee (often $9–$15).

Is Accident Forgiveness Worth It?

If you are a safe driver, paying a small amount for accident forgiveness programs can save you thousands of dollars over three years. Given that an at-fault crash in Illinois can raise premiums by over $800 a year, the peace of mind is often worth the cost.

Beyond Standard Scenarios: Unique Accident Impacts in Illinois

Sometimes, an accident involves more than just two private cars. Specific state laws and insurance regulations govern these situations.

Accidents with Uninsured or Underinsured Motorists in IL

If someone without insurance hits you, you will likely file a claim under your uninsured motorist coverage. Under 625 ILCS 5/7-601, Illinois drivers must carry this protection. Because you are not at fault, your insurance rates typically will not go up, but you should still review your liability coverage limits.

Rideshare, Rental, or Company Vehicle Accidents

If you are in a rental car or a company vehicle, the claim process is different. Rideshare drivers (Uber/Lyft) need special endorsements. If you use a personal automobile insurance policy for business without telling your insurer, they could deny your claim entirely.

Deciding Not to File a Claim for Minor Damage

For very minor dents and scratches, some car owners choose to pay out of pocket. If the repair cost is lower than your deductible, filing a claim might not be worth the risk of a rate hike. However, you should still consult a professional to ensure there are no hidden mechanical issues.

Strategies to Mitigate (or Avoid) a Rate Hike After an Accident

Even if you are at fault, you do not have to accept a massive rate hike without a fight. There are several legal strategies and policy adjustments you can use to lower your insurance costs.

Review Your Policy and Coverage Limits

After a crash, look closely at your automobile insurance policy. You may be paying for coverage you no longer need. If your car is old and has many dents and scratches, it might be time to drop collision coverage. A good rule is to drop it if the annual cost of the coverage exceeds 10% of the car's value. However, always keep strong liability insurance and uninsured motorist coverage to protect yourself in the Illinois court system.

Shop Around for New Insurance Quotes

Loyalty does not always pay in the insurance world. If your current insurance provider raises your rates by 40%, it is time to get a new insurance quote. Other car insurers may penalize you less for a single at-fault accident. Use a comparison tool to look at at least three different companies.

Consider Raising Your Deductible

Raising your deductible is a quick way to lower your monthly insurance rates. If you move your deductible from $500 to $1,000, you could save 15% to 30% on your premium. Just make sure you keep that $1,000 in a savings account in case of another auto accident.

Take a Defensive Driving Course

Many insurance companies offer a discount if you complete an approved defensive driving course. This shows the insurer that you are taking steps to be a safer driver after your at-fault crash. It can often result in a 5% to 10% discount on your liability coverage.

Bundle Policies and Seek Other Discounts

Check if you can get a multi-policy discount by bundling your car insurance with homeowners or renters insurance. Also, ask about:

• Safe Driver Discount: If you go a year without another incident.
• Loyalty Rewards Program: For long-term customers.
• Good Student Discount: For young drivers on the policy.
• Insure on the Spot: Look for specialized low-cost providers if major insurers become too expensive.

The Claims Process and Its Interplay with Your Premiums

In Illinois, you are often required to report a car accident to the police if there are injuries or significant damage. However, reporting to your insurer is different from filing a claim. If you just notify them of the event but don't ask for money, some car insurers might be more lenient, though most will still count it as a risk event.

Working with Insurance Adjusters

Insurance adjusters are trained to save the company money. During the accident investigation, they will look for any reason to put more fault on you. Because of Illinois' comparative negligence laws, every 1% of fault they can shift to you reduces the claim amount they have to pay. Be careful with your words and avoid admitting fault at the scene.

The Impact of Multiple Claims (Even Not-at-Fault)

Even if you have accident forgiveness, it usually only applies to one claim. If you have a second at-fault accident or even multiple uninsured motorist claims in a short time, you may be labeled high risk. This can lead to your policy being canceled or non-renewed.

When to Consult an Attorney: Navigating Illinois Accident Laws

Sometimes, the insurance companies get the fault determination wrong. When that happens, your insurance rates suffer unfairly.

How a Personal Injury Lawyer Can Help with Fault Determination

Personal injury lawyers at Conboy Law Firm use evidence like dashcam footage, witness statements, and black box data to challenge an unfair fault finding. If the insurer says you are 60% at fault, but we prove you are only 40% at fault, it can save you thousands in future insurance costs.

Protecting Your Interests During the Claim Process

Having an attorney-client relationship means someone is looking out for you, not the insurer's bottom line. We provide legal advice on how to handle insurance adjusters and ensure you get a fair claim amount for your injuries and car repairs.

Situations Where Legal Counsel is Highly Recommended

You should seek legal advice if:

• There are serious injuries or a birth injury.
• Fault is being disputed.
• The other driver was an uninsured motorist.
• The insurer is acting in bad faith or ignoring insurance regulations.

Frequently Asked Questions About Insurance Rate Hike After an Accident

Taking Control After an Illinois Car Accident

An accident can feel like a financial disaster, but you have options. By understanding Illinois' comparative negligence laws and using legal strategies to protect your record, you can minimize the financial impact. Whether you need help fighting an unfair fault finding or navigating personal injury claims, Conboy Law Firm is here to help.

Don't let insurance companies dictate your financial future. If you’ve been in a car accident, contact us today to protect your rights and your driving record.