Can you add someone who is not in your household to your auto insurance policy?

If you need to it can be done. Wether or not you need to depends on some of the factors listed below: Are you wanting to add them and their vehicle? If yes, then only if you have an insurable interest in the vehicle (Your name is on the title as well as theirs) otherwise they would need their own policy. This is true for most companies, but there are a few like Progressive that do not ask about insurable interest. Are you wanting to add them just as a driver of your auto? Answer depends on how much they will be using your auto. Occasional operation by a non-relative not living with you is generally allowed without them being added to your policy. If they will be using your vehicle on a regular basis most companies require you to add them. Thge price to add them will vary depending on their age, driving record, sex (M/F not Y/N), type pf vehicle, etc.