The AOK also offers the option of voluntary insurance. The voluntary insurance is for persons that are no longer covered by a statutory insurance or family insurance, for example. This is the case, should an employee's income exceed the annual earning limit (2021 64,350 euros). Those affected seamlessly continue the previous insurance as voluntary insurance. They can also declare their withdrawal within two weeks of being informed by the AOK and take out private health insurance.
The income is used to calculate the contributions of the voluntary insurance. The AOK will gladly inform you.