Can I Cancel My Auto Insurance At Any Time? 
Most insurance companies will accept a telephone call as an order to cancel an auto policy . Some may require a signed form but even that should be available over the internet or directly from your agent . If you want the policy cancelled on a date other than the current date , additional information might be required . For example , if you call the company and tell them that you sold the car 45 days ago . They might require a bill of sale , to back-date the cancellation . 