In the United States, an auto insurance cancellation fee is usually a flat fee under $100. However, some carriers charge 10-15 percent of the remaining policy premium.But mark the expiration date in your calendar because some carriers automatically renew policies. Before you talk to a company about a quote, ensure it has a good rating. A rating is an opinion about the company's financial strengths. It lets you know how the company can withstand certain hardships. These would include:Several organizations monitor an insurance company's strength. A.M. Best is the most prevalent and most used by insurers. It scores from "A++" to "F". It's wise to choose in the "A" range.