When does nonrenewal of an insurance policy occur?

Nonrenewal of an insurance policy refers to the situation in which an insurance company decides not to continue coverage beyond the existing policy term. This typically occurs at the end of the policy period. An insurer may choose not to renew a policy for various reasons, such as changes in risk or claims history. The nonrenewal notice is usually sent out before the policy expiration date to inform the policyholder that they will need to seek coverage elsewhere once their current policy expires.

The other circumstances described in the options don't align with the standard definition of nonrenewal. For example, nonrenewal does not typically happen at any point during the policy period since the decision is made regarding continuation of coverage as the policy nears its expiration. Mutual agreement between the insurer and the insured can lead to cancellation or change in the policy but isn't classified as nonrenewal. Additionally, filing a claim does not inherently trigger nonrenewal; it is the end of the policy term that is decisive in this context.