Does Car Insurance Start Immediately? 
Car insurance can start immediately . When you sign up for auto insurance , either directly through the insurance company -LRB- typically done online -RRB- or through an agent , you have the option of setting the effective date of the policy . For example , if you are purchasing a new car you can sign up for insurance at the auto dealer online and print out proof of insurance immediately . Even if you purchase new auto insurance through an agent he/she can draft a proof of auto insurance on an ACORD form for you in the office . 