Do you have a magnetic sign for your business on your car? Better ask your insurance agent if you have the right kind of insurance to do that so you’re not surprised when you find later you’re not covered. $$$ In some states, using a vehicle for business purposes requires that it be registered for commercial or business rather than personal use. Placing a magnetic sign on your car door to advertise your business can be interpreted as commercial use. If you register a vehicle for commercial or business use, its insurance coverage must match its registration. Driving an improperly registered vehicle can yield a ticket and a potentially expensive fine if a police officer pulls you over. In the event of an accident, you can have your claim denied and your policy voided. Before you spend the money on that magnetic sign, verify your local laws won’t force you to change the way you classify your car and the amount you spend to keep it on the road.