In this article 9 sections
There is no official national average increase after an accident. What regulators publish are the rules: in New York, a first at-fault accident can bring a surcharge of up to 40% under many rating plans, but only if someone was injured or property losses exceeded $2,000, and it typically lasts three years.
In Massachusetts, an at-fault accident is surchargeable only with a claim payment over $1,000 and more than 50% fault. In California, an at-fault accident causing injury or death costs you the Good Driver Discount of at least 20%. Not-at-fault accidents are protected from surcharges in several states.
Surcharge rules come from the New York DFS, the Massachusetts Division of Insurance and the California Insurance Code; general guidance from the NAIC. No private rate-study averages are used. NextCarReview does not sell insurance, lend money or test financial products; see our sourcing policy.
This is general information, not financial or legal advice; rules vary by state.
After the shock of a crash comes the next question: what will this do to my insurance bill? Headlines often quote a single "average" increase, but those numbers come from private rate studies and vary widely by study, state and insurer. The more useful information is what state regulators allow insurers to do. This guide walks through those rules in three states that publish them clearly, then explains how to estimate your own increase and limit it.
Why Do Insurance Rates Go Up After an Accident?
Insurers price policies on expected future claims, and a recent at-fault accident is one of the strongest predictors they use. The NAIC lists your driving record, and the records of others on your policy, over the last three to five years as a major premium factor, along with your prior claims. Most insurers also report auto claims to private databases such as the Comprehensive Loss Underwriting Exchange (CLUE), and the NAIC notes you have a right to a free copy of your CLUE report (NAIC).
New York’s regulator frames it the same way: a surcharge is a tool to price the risk the insurer is taking on, not a way to recoup a claim payment, so the surcharge does not depend on whether the claim was $3,000 or $50,000 (NY DFS). California’s Proposition 103 law ranks the driving safety record first among the factors insurers must use to set rates (Cal. Ins. Code 1861.02).
How Much Can Insurers Surcharge an At-Fault Accident?
These state rules show how different the answer can be:
| State | When an accident can raise your rate | Size or effect | How long |
|---|---|---|---|
| New York | At-fault accident with bodily injury or property losses over $2,000; two or more smaller accidents may also count | Up to 40% surcharge under many insurer rating plans, plus possible loss of a safe driver discount; no policy surcharged above 3 times the base premium for its highest-rated vehicle | Experience period typically 3 years from the incident |
| Massachusetts | More than 50% at fault and a claim payment over $1,000 | Minor at-fault accident (over $1,000 up to $5,000): 3 surcharge points; major (over $5,000): 4 points under the Safe Driver Insurance Plan | 6-year policy experience period |
| California | Principally at fault in an accident causing bodily injury or death, or more than one violation point | Loss of the Good Driver Discount, which must be at least 20% below the rate otherwise charged | Good Driver test looks back 3 years |
In California, a property-damage-only accident counts as one violation point toward the Good Driver test, and drivers with more than one point in three years do not qualify (Cal. Ins. Code 1861.025). Most other states leave surcharge size to each insurer’s filed rating plan, which is why two companies can react very differently to the same accident.
Will Your Rates Go Up If the Accident Was Not Your Fault?
In New York, surcharges are not permitted when your car was struck while legally parked, when you were rear-ended and had no moving violation conviction, when your driver was not at fault, when you were the victim of a hit-and-run, or for claims under comprehensive or towing coverage (NY DFS). Massachusetts surcharges only accidents where the driver is more than 50% at fault (Mass. Division of Insurance).
Elsewhere, ask before you assume. The NAIC suggests asking insurers directly how an at-fault and a not-at-fault accident would affect your premium, noting that in some states insurers cannot charge more for accidents that were not your fault (NAIC). Comprehensive claims, such as hail or theft, are a separate category and are generally treated differently from at-fault collisions.
How Can You Estimate Your Own Increase?
Because there is no official average, the best estimate starts with your own premium and your state’s rules. As an illustration only, here is what New York’s "up to 40%" ceiling would mean for a few sample premiums over a three-year experience period:
| Annual premium before the accident | Surcharge at 40% (per year) | Over 3 years |
|---|---|---|
| $1,500 | $600 | $1,800 |
| $2,000 | $800 | $2,400 |
| $3,000 | $1,200 | $3,600 |
To get a real number, ask your insurer what surcharge its filed rating plan applies to your accident and for how long, then compare quotes from other companies, which may weigh the accident differently. Our guide to comparing auto insurance quotes explains how, and the NextCarReview auto insurance calculator shows how a driving-record change shifts an estimate.
Should You File a Claim or Pay Out of Pocket?
For a minor fender-bender with no injuries, paying the repair yourself can sometimes cost less than a surcharge. Compare these numbers before you decide:
- Repair cost vs. your deductible: if the damage is near your deductible, a claim pays little.
- Your state’s threshold: New York does not surcharge a single accident with no injuries and losses of $2,000 or less; Massachusetts uses $1,000.
- Likely surcharge over the full experience period: multiply the yearly increase by the number of years it lasts.
- Other drivers’ claims: if another person was hurt or their car was damaged, their claim may reach your insurer anyway.
Whatever you decide, follow your policy’s notice requirements, and report any accident with injuries. Failing to tell your insurer about an accident can jeopardize coverage if the other driver files a claim later.
What Should You Do Right After an Accident to Protect Your Rate?
- Get a police report when one is available and document the scene with photos.
- Exchange insurance information and note witnesses; this supports a not-at-fault finding.
- Meet state reporting rules. In California, for example, each driver must file an SR 1 report with the DMV within 10 days if there was more than $1,000 in damage or anyone was injured or killed (California DMV).
- Ask your insurer how it determined fault and whether a surcharge will apply.
- Appeal if your state allows it. Massachusetts lets drivers appeal an insurer’s at-fault determination.
If another driver caused the crash and you were injured, the liability side can be more complicated than the insurance surcharge; our overview of when to talk to an auto accident attorney covers that. If you are shopping for a used car, a vehicle accident history check shows past reported crashes.
How Do You Bring Your Rate Back Down?
- Drive clean through the experience period. Surcharges drop off after the period ends: about three years in New York, six in Massachusetts.
- Shop at renewal. Insurers weigh the same accident differently.
- Raise physical damage deductibles if you can afford them; the NAIC notes higher deductibles lower premiums.
- Ask about discounts such as defensive driving courses, which the NAIC lists particularly for drivers 55 or older, or telematics programs.
- Review your CLUE report for errors in how the claim was recorded.
Frequently Asked Questions
How much does car insurance go up after an accident?
There is no single national figure, and averages you see online come from private rate studies. Regulators publish the rules instead: New York’s DFS says that under many insurer rating plans a first at-fault accident could bring a surcharge of up to 40% of your premium, plus the loss of a safe driver discount. Your increase depends on your state, insurer, fault and claim size.
Does insurance go up if the accident was not my fault?
Often it should not, but the rules are state by state. New York does not permit surcharges for accidents where the insured driver was not at fault, hit-and-run accidents where the insured was the victim, or comprehensive claims. The NAIC notes that in some states insurers cannot charge more for accidents that were not your fault.
How long does an accident affect my insurance?
Usually several years. New York surcharges apply during an experience period that typically lasts three years from the incident. Massachusetts counts surchargeable incidents over a six-year policy experience period. The NAIC says insurers generally look at the last three to five years of your driving record.
Should I pay for a small accident myself instead of filing a claim?
Sometimes. If the damage is close to your deductible, or below your state’s surcharge threshold, paying it yourself may cost less than a surcharge. But report any accident with injuries, and follow your policy’s notice requirements; failing to report can jeopardize coverage if the other party files a claim later.
Can I dispute an at-fault determination?
In some states, yes. Massachusetts lets drivers appeal an insurer’s at-fault accident determination through the state’s appeal process. In other states, ask your insurer how it assigned fault and contact your state insurance department if you believe the decision is wrong.
⚠️ Professional Notice:
Surcharge rules differ by state and insurer and can change. The figures above are state regulatory limits and illustrations, not quotes. Ask your insurer for its specific surcharge and contact your state insurance department with questions.
This is general information, not financial, insurance or legal advice. NextCarReview.com does not receive compensation from any lender, insurer, dealer or warranty company for editorial coverage, and does not rank or recommend specific companies.
Car Money Guides
More in this series:
Data Sources and Verification
- New York DFS: Auto insurance information for consumers (surcharges)
- New York DFS: Can my insurance company raise my premium due to an accident or traffic ticket?
- Massachusetts Division of Insurance: Surchargeable incidents
- Massachusetts: Safe Driver Insurance Plan (SDIP)
- Massachusetts: Appeal an at-fault accident determination
- 211 CMR 134.02 (Massachusetts Safe Driver Insurance Plan definitions: more than 50% at fault, $1,000 claim threshold, six-year experience period)
- California Insurance Code section 1861.025 (Good Driver definition)
- California Insurance Code section 1861.02 (rating factors, Good Driver Discount)
- California DMV Driver Handbook: SR 1 accident reporting
- NAIC: A Consumer’s Guide to Auto Insurance (PDF)
Morgan Reyes is the founder and editor-in-chief of NextCarReview, which Morgan launched in August 2024. A 2022 graduate of Columbia University, Morgan is based in New York and writes and edits the site’s reviews, comparisons and buying guides. Morgan does not road-test vehicles. Every article is built from published primary data: EPA FuelEconomy.gov ratings, NHTSA crash ratings, recalls and owner complaints, IIHS results, and manufacturer specifications and pricing, with each figure cited and checked before publication. Contact: admin@nextcarreview.com
