Which statement about the "out-of-pocket maximum" is accurate?

The out-of-pocket maximum is a crucial component of health insurance that sets a limit on the total costs a policyholder must pay for covered services in a given policy year. Once this limit is reached, the insurer is responsible for covering any additional costs for covered healthcare services. This aspect can significantly protect policyholders from high medical expenses, ensuring that even in cases of serious health issues, there is a ceiling on the financial burden they must face.

In contrast, the other statements do not accurately describe the nature or functionality of the out-of-pocket maximum. It is not limited to only non-preventive services, nor does it require policyholders to continue paying certain costs once they reach the maximum amount. Additionally, while the out-of-pocket maximum does reset over a calendar year, it may also reset in situations where a policy year does not align with the calendar year, which further illustrates why this particular statement about it being only synced with the calendar year does not hold true.