To find out when your auto insurance policy expires, you can check your insurance documents or contact your insurance provider. The expiration date of your policy is typically listed on your insurance card, policy declaration page, or any other documents you received when you purchased your policy. If you can't find the expiration date on your documents, you can call your insurance company's customer service hotline and ask them for the expiration date of your policy. They will be able to provide you with the exact date when your policy expires. It's important to know the expiration date of your auto insurance policy so that you can renew it on time and avoid any gaps in coverage. Remember to always renew your policy before it expires to ensure continuous coverage.