Affiliation for employed workers is mandatory and must automatically be reported by the employer to the Social Security. For independent workers affiliation is also mandatory but it must be applied individually by each worker who is responsible to report his/her income to calculate contribution. There is a third scheme ''voluntary insurance'' that applies to any person with taxable capacity but that do not perform an economic activity; although its affiliation is voluntary, once acquired becomes irrevocable, except if the person becomes salaried, self employed, or acquires the right to family benefit or insurance by the State. Because of the irrevocable character, it is not included in the voluntary category.