You should review your insurance coverages every year, however, you should compare insurance company options every 4-5 years. This allows you to ensure that you are getting the best possible rate. When comparing rates, be sure to consider the type and amount of coverage you need.
What most insurance agents won’t tell you is that most insurance companies give their best rates to loyal customers who have been with their previous insurance for 3 years or longer. Switching companies every year or every other year ends up costing you more in the long run.