I understand that you might want to try and potentially save money, but lying to your insurance company isn't going to help. In fact, it could potentially even lead to your coverage being dropped. The Department of Motor Vehicles will most certainly list the age in which you were first licensed. Your insurance company will verify that age before the start of the policy or during the underwriting process. I would recommend calling the insurance company and correcting the age as soon as possible to avoid your policy being canceled. In the state of California, how long you've had your license continuously is a rating factor that insurance companies use when determining rates. Should your license ever be suspended, that clock starts over. For more on rating factors, see the links below.