In most cases, you can cancel your auto insurance policy at any time. However, it's essential to review your policy's terms and conditions to ensure there are no early termination fees or penalties. Some insurance companies may have a short grace period for cancellation requests, while others may require a specific notice period, often 10-14 days. Additionally, if you've received any refunds or discounts from your insurance company, you may be required to pay them back upon cancellation. It's always a good idea to discuss your intentions with your insurance provider to avoid any unexpected fees or complications.