Final answer:
License tabs for a car generally need to be renewed every 1 year, but it's essential to confirm with the local DMV as this can vary by location.
Step-by-step explanation:
License tabs, also known as registration tabs, are typically renewed on an annual basis. Therefore, license tabs for your car renew every 1 year. This can vary by jurisdiction, so it's important to check with your local Department of Motor Vehicles (DMV) or equivalent authority to get the specifics for your area.