My Personal Finance Blog

The main thing to understand about discounts is the thinking behind them. The insurance companies want to encourage you to act in ways that favor them. If you are contrary and do the opposite, you will probably cost them money so your premium rates will be higher. Let’s take a few examples and see how it works. Obviously the point of insurance is that, if you have one of those unfortunate accidents or someone steals your vehicle, you get to claim money from the insurance company. From the insurer’s point of view, this is bad news. It wants to be able to treat all your cash as profit. The more it has to pay out, the more it should raise premiums. Except, at some point, you throw up your hands and say, “We’re not going to pay that.” So a balance has to be struck. The insurer wants all the safe drivers like you, and aims to discourage all the drivers with bad records – they are the ones who get the really big premium hikes. Although loyalty bonuses go some way in the right direction, there are more ways in which the insurer can save money. It all starts with the make and model of vehicle you are driving.

Risk assessment is done by the actuaries. These are the math wonks who collect details of every accident reported in the US. This is not just the data from claims on vehicle insurance. This is every incident reported to the police, attended by the firefighters or ambulance crews, or dealt with through claims on health insurance. Put all this together and the actuaries can tell you the probability of an accident in any make and model of vehicle, given its color, whether it was fitted with any additional features, who it was driven by, the time of day or night, whether the driver and passengers were badly injured, so on. Yes, it’s that detailed. Turning this around, if you drive a vehicle that’s statistically unlikely to be involved in an accident or stolen, your premium will be lower than average. Put a safe driver in a safe car and the chances of the insurer having to pay out are small and the profit is higher. Everyone is happy. So how do you find out which are the safest vehicles with the lowest premium rates? Well, you start with http://www.safercar.gov/, a site run by the National Highway Traffic Safety Administration. This allows you to get the safety ratings from all the tests carried out by the NHTSA. There’s a guide published at http://www.nhtsa.dot.gov/staticfiles/DOT/NHTSA/Vehicle%20Safety/Articles/Associated%20Files/2009_Insurance_Costs_Comparison.pdf which is also helpful. Finally, the Insurance Institute for Highway Safety publishes its own list of safe vehicles at http://www.iihs.org/ratings/

The safer the vehicle you drive, the greater the discount on the premium rate. So when you are filling out the questionnaire for those auto insurance quotes, aim to have a safe vehicle. If you vehicle is not safe and you cannot afford to change it, try to upgrade it by fitting safety features. Look at the questions asked in the questionnaire and talk to insurance agents to find out what features save the most money. Similarly, fit better locks and any systems making your vehicle more difficult to steal. Anything you can do to reduce the risk of a claim will be reflected in low rates in the auto insurance quotes you receive.

The business of insurance is called underwriting. The company enters into a contract (called a policy) and agrees to indemnify a group of people like you against defined losses. So it uses some heavy duty math to work out the probability of the losses being incurred. It’s called risk assessment and relies on a complicated use of statistics. For vehicle insurance, the companies collect the details from every reported traffic accident in the US looking at the age, sex and occupation of the driver, the make and model being driven, the time of day, the road conditions, and the extent of the damage. The insurers share the information on the current costs of replacement parts and the labor to fit them.

They also manage to talk the health insurance companies into sharing their current costs on medical treatment for those injured in traffic accidents. With all this information, they can make good estimates of the cost of loss, i.e. the total amount they may have to pay out if they insure, say, 100,000 drivers. They take this estimate, add the cost of running the insurance company and a profit margin. This total is then divided between all the 100,000 as their premiums. Some companies divide the total equally so the good drivers subsidize the bad. But the majority adjusts the individual amounts based on the driver’s safety record. That way, each policy holder pays more or less depending on how well he or she drives. This is more fair.

But, to cut costs, some insurance companies make more general assumptions about the likelihood of losses. Instead of personalising the risk assessment, they focus the assessment on generalities. The most common is the use of the zip code. In some areas of a town or city, there are higher levels of vehicle theft and vandalism. Some areas have more people driving while intoxicated or impaired through drugs. Because of the design of the local road system, there may also be a higher number of accidents. The insurers therefore charge everyone living in those areas a higher premium. Apart from the unfairness at an individual level, some lawyers believe it is active discrimination because many of the zip code areas loaded with higher premiums have higher concentrations of particular racial or ethnic groups. California has formally prohibited insurance companies from using zip codes, credit scores and other factors not directly relevant to the assessment of driver safety. In those states, insurers continue to trade and make a profit. It has not been the end of the world they predicted.

So, depending on the US state in which you live, your premium may either be calculated based on your personal driving record, or it may be based on your zip code and credit score. Either way, the task of finding the cheapest car insurance remains the same. You have to shop around the companies licensed to sell policies in your state and find the best deal. If there is active competition between the insurers, the premiums will be lower and you will find cheap car insurance without too much difficulty. But if the state is unregulated and insurers do not compete, it will be more difficult to find a cheap policy.