Car Insurance Bonus-Malus System
Complete explanation of the car insurance bonus-malus system: coefficient calculation, impact of claims, transfer between vehicles, and practical advice.
What Is Bonus-Malus?
Bonus-malus, officially called the Reduction-Increase Coefficient (CRM in French), is a system that varies your car insurance premium based on your claims history. The fewer at-fault claims you have, the less you pay. For more on insurance in France, explore our complete guides.
The Basic Principle
You start with a coefficient of 1. Each year without an at-fault claim, your coefficient decreases by 5%. Each at-fault claim increases your coefficient by 25%.
Why This System?
Bonus-malus aims to make drivers more responsible and charge more to those who have more accidents. It's a principle of fairness among policyholders.
Calculating the Coefficient
Reduction for Good Driving (Bonus)
Each year without an at-fault claim, your coefficient is multiplied by 0.95 (-5%). The maximum bonus is 0.50 (50% reduction), reached after 13 claim-free years.
Increase After a Claim (Malus)
For an at-fault claim, the coefficient is multiplied by 1.25 (+25%). The maximum malus is capped at 3.50 (your premium can be three and a half times higher).
Partially At-Fault Claims
If you're 50% responsible, the coefficient is multiplied by 1.125 (average between no claim and full claim).
Claims That Don't Count
Non-At-Fault Claims
An accident where you're not responsible doesn't affect your bonus-malus. The responsible party's insurance pays compensation.
Certain Events
Theft, fire, glass breakage, natural disasters, and parking accidents without identified third parties generally don't affect the CRM.
Direct Compensation
Even if your insurer compensates you directly (IRSA convention), they then recover from the responsible party's insurer. Your bonus isn't affected.
The Information Statement
What Is It?
It's the document summarizing your car insurance history: current coefficient, claims over the last 5 years, license age.
How to Obtain It?
Your insurer must provide it upon request and mandatory at contract end. It's essential for changing insurers while keeping your bonus.
What It Contains
The statement specifies the reference date, the applied coefficient, and details of claims with dates and responsibilities.
Bonus Transfer
Between Vehicles
Your bonus is attached to you, not the vehicle. When you change cars, you keep your coefficient.
Between Insurers
When you change insurers, your new contract takes the coefficient stated on the information statement.
After an Interruption
If you haven't been insured for more than 2 years, you start again at coefficient 1. Previous bonus is lost.
Special Cases
Young Driver
You start at 1 and can accumulate bonus from the first year. Some insurers apply a separate "young driver" surcharge distinct from the CRM.
Secondary Driver
The secondary driver doesn't accumulate bonus on the contract. If they become a primary driver elsewhere, they start at 1.
Company Fleet
Company vehicles may have different bonus-malus, calculated across the entire fleet.
Tips for Preserving Your Bonus
Declare Third-Party Claims
If a third party is identified as responsible, make sure the insurer has noted it correctly to avoid unjustified malus.
Pay for Small Claims
For minor damage where you're responsible, it may be economically better not to declare and pay yourself, to preserve your bonus.
Check Your Statement
Each year, verify that the coefficient and claims listed are correct. Errors happen.
Conclusion
Bonus-malus is a simple system but has a significant impact on your car insurance premium. Driving carefully for 13 years can halve your premium. Conversely, a few at-fault claims can make it skyrocket.
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The information provided in this article is for informational purposes only. Consult your insurance contract for exact conditions.
CheckEverything.fr Editorial Team
Writing and fact-checking
Our editorial team brings together writers specialized in energy, telecommunications, insurance and banking in France. Every article is verified against official French sources (CRE, ARCEP, ACPR, service-public.fr) before publication.
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The information provided on this site is for informational purposes only and does not constitute personalized advice. We recommend consulting a professional for any important decision.
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