You have brought up a few seperate issues. First of all, "comprehensive" covers your vehicle, and sometimes other vehicles you may be driving for losses resulting from incidents other than collision. For example, comprehensive insurance covers damage to your car if it is stolen; or damaged by flood, fire, or animals. (It will pay to fix your vehicle less the deductible you choose.) So, if you are talking about having an accident with another vehicle, you would be talking about "collision" coverage to help fix your vehicle. With that being said, "concealment" (keeping material fact from your insurance company) and "material misrepresentation" (not telling the truth to your insurance company) gives YOUR INSURANCE COMPANY GROUNDS FOR VOIDING YOUR POLICY. Which means the insurance company, will give you back any monies you paid into your policy, and you will be stuck paying for the claims resulting from the accident. Now, they will probably not void it unless the situation creates an increase in premium or creates a situation that they would normally not insure. Commuting to and from work, where no business use is done in connection to your job, is considered pleasure use. If this is the case, your premiums should not change - unless your company rates your premiums based on your vehicle's daily mileage. Your best bet is to contact your insurance company. Let them know about your side job. And, let your insurance company determine your best course of action for your insurance needs.