What Makes Up a Car Insurance Premium
Car insurance has two broad categories: compulsory third-party liability insurance and commercial insurance. The former is legally required, while the latter is optional, and the two are priced in completely different ways. **Compulsory insurance uses a nationwide base rate that depends on vehicle type and seat count.** For the most common family cars with six seats or fewer, the base premium is 950 yuan per year. This number is uniform nationwide, but it floats with your accident history: years without claims earn discounts of up to 30%, while a claim in the past year raises it by up to 30%. For example, three claim-free years can drop the premium to 665 yuan; one claim restores it to 950 yuan; two or more claims may push it above 1045 yuan. **Commercial insurance is built from main and additional coverages, priced by model, age and driving record.** Common main coverages include damage to your own vehicle, third-party liability and occupant liability; add-ons cover medical expenses outside medical insurance, paint scratches and more. The third-party liability limit drives most of the cost. Typical limits run from 1 million to 3 million yuan. Higher limits cost more but not linearly — raising from 1 million to 2 million usually adds only a couple hundred yuan, making it excellent value.How Premiums Are Calculated: Rates, Coefficients and Claims
A simplified formula for the commercial premium is: Premium = Base premium × No-claim discount factor × Market pricing factor × Traffic violation factor. The base premium comes from the insurer's quote for your specific model, so differences across companies are small for the same car. What really separates quotes are the factors that follow. The no-claim discount factor (NCD) is tied directly to your accident record: three claim-free years can push it as low as 0.5; one claim returns it to 1.0; two claims put it near 1.25; more claims drive the premium up sharply, sometimes doubling it. The market pricing factor is the part insurers adjust within regulatory limits, which is why the same car gets different quotes from different companies and channels. As an example, take a car with a 4000 yuan base commercial premium. With three claim-free years and an NCD factor of 0.5, you pay about 2000 yuan. After a single claim the factor returns to 1.0 and the premium is 4000 yuan. After two claims it rises to 1.25 and the premium is 5000 yuan. One small accident can mean thousands of yuan in higher premiums over the next two or three years, so factor that hidden cost into any decision about whether to file a claim.Annual Budget Reference and Money-Saving Tips
For a typical family petrol car worth about 150,000 yuan with 2 million yuan of third-party coverage, the first-year premium usually lands between 4500 and 6000 yuan including compulsory insurance and vehicle tax. With claim-free renewals it drops year by year, settling into the 2500-3500 yuan range by year three. Because of higher repair and parts costs, electric vehicles typically cost 10%-20% more than petrol cars of the same price. To save money, focus on three directions. First, keep a clean driving record — the no-claim discount is the biggest lever. Second, choose coverages sensibly: new cars and new drivers should carry 2 million yuan or more in third-party coverage, while older cars can trim the damage-to-own-vehicle policy. Third, compare quotes from three or four channels before renewal, because even the same company may apply different pricing factors through different channels. Insurance is an annual expense, but by understanding the pricing rules, controlling claims and shopping around, you can make every yuan count. Whether car costs fit your budget also depends on your overall income — use a [salary calculator](https://calc20.top/en/salary) to check how much of your monthly income car spending takes up. If you want to know how much of your income goes to a car loan, work out the monthly payment with the [loan calculator](https://calc20.top/en/loan) first.FAQ
Q1: Do I have to buy compulsory and commercial insurance together?
Compulsory insurance is required by law — you cannot drive without it. Commercial insurance is optional, but relying only on compulsory coverage is risky: its property damage limit is only 2000 yuan, so any damage beyond that, such as hitting an expensive car or causing serious injury, comes out of your own pocket. At least 1 million yuan of third-party coverage is recommended.
Q2: How much does a single claim raise next year's premium?
Compulsory insurance returns to its base rate or goes up, while the commercial NCD factor moves from the lowest tier back to 1.0, typically raising the total premium by 10%-30%. The exact increase depends on claim amount, frequency and region. For minor scratches, paying out of pocket may be cheaper than filing — do the math first.
Q3: Why is electric vehicle insurance more expensive?
Electric vehicles carry large battery packs that account for a big share of the vehicle's value, and repairs cost more on average. Insurers build that higher expected payout into the premium, so same-priced EVs typically cost 10%-20% more to insure.
Q4: Can I buy car insurance in a different province?
Yes, but it is better to insure where you actually use the vehicle. Base rates and discounts vary by region, and cross-province policies may complicate claims and reduce available discounts. Comparing local quotes at renewal is the safer choice.